USRE41675E1 - Power charging system and related apparatus - Google Patents

Power charging system and related apparatus Download PDF

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Publication number
USRE41675E1
USRE41675E1 US11/442,739 US44273906A USRE41675E US RE41675 E1 USRE41675 E1 US RE41675E1 US 44273906 A US44273906 A US 44273906A US RE41675 E USRE41675 E US RE41675E
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Prior art keywords
power
voltage
transformers
charging system
transformer
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US11/442,739
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Sen-Hsiang Liu
Wei-Chen Tu
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Intellectual Ventures I LLC
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Individual
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/10The network having a local or delimited stationary reach
    • H02J2310/20The network being internal to a load
    • H02J2310/22The load being a portable electronic device
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially

Definitions

  • the present invention relates to a power charging system, and more particularly, to a power charging system for portable electric devices.
  • a charging system including a transformer and power cord designed for each portable electric device allows usage of these portable electric devices anytime and anywhere.
  • FIG. 1 is a schematic diagram illustrating a portable electric device 10 A charging system according to prior art.
  • the portable electric device 10 A has a charging port 12 A for inputting a DC (direct current) working voltage.
  • Two corresponding transformers 16 A and 18 A are used to charge the portable electric device 10 A.
  • An AC (alternating current) power 20 is input via an input port 17 A of the transformer 16 A, altered by the transformer 16 A to the working voltage of the portable electric device 10 A, and output via an output port 14 A of the transformer 16 A.
  • a DC power 22 is input via an input port 19 A of the transformer 18 A, altered to the working voltage of the portable electric device 10 A, and output via an output port 15 A of the transformer 18 A.
  • Users can select the transformer 16 A or 18 A to charge the portable electric device 10 A by connecting the input port of the transformer to a corresponding power source and connecting the output port of the transformer to the charging port 12 A of the portable electric device 10 A.
  • an input power is first transformed into the specially designed working voltage of a portable device by a corresponding transformer, delivered from the output port of the transformer to the corresponding charging port of the portable electric device, and is finally used to charge the portable electric device.
  • a portable electric device 10 B shown in FIG. 1 , also has a specially designed charging port 12 B for inputting its specially designed working voltage.
  • the transformers 16 B and 18 B respectively have corresponding output ports 14 B and 15 B.
  • An AC power 20 is input via an input port 17 B of the transformer 16 B, altered by the transformer 16 B into the specially designed working voltage of the portable electric device 10 B, and output to the charging port 12 B via the output port 14 B of the transformer 17 B.
  • a DC power 22 is input via an input port 19 B of the transformer 18 B, altered to the specially designed working voltage of the portable electric device 10 B, and output to the charging port 12 B via the output port 15 B of the transformer 18 B.
  • Different portable electric devices have different specially designed working voltages.
  • the working voltage of modern portable electric devices varies from 3 volts to 12 volts.
  • the charging port of each portable electric device also has a different shape and structure.
  • a prior art portable electric device is equipped with its own specially designed transformer. These special transformers convert an input power via their input ports into the specially designed working voltage of the corresponding portable electric device. The output ports of these transformers must match the specially designed charging port of the portable electric device.
  • users carry two (or even more) portable electric devices, they have to carry corresponding specially designed transformers to charge their portable electric devices.
  • the transformers 16 A and 16 B both can transform the AC power 20 to DC power
  • the transformed voltages that are output from each transformer are still the two specially designed and often different working voltages of the portable electric devices 10 A and 10 B.
  • the output ports 14 A and 14 B of the transformers 16 A and 16 B also have different shapes. These two reasons make the specially designed transformer 16 A of the portable electric device 10 A incompatible with the portable electric device 10 B.
  • the specially designed transformer 16 B of the portable electric device 10 B cannot charge the portable electric device 10 A.
  • users plan to charge a portable electric device with two different kinds of power sources, they have to carry at least two different specially designed transformers for each portable electric device to transform different power sources into the specially designed working voltage of the portable electric device. As shown in FIG. 1 , users have to carry the two specially designed transformers 16 A and 18 A with them to charge the portable electric device 10 A from two different power sources, the DC power 22 and the AC power 20 .
  • a disadvantage of prior art is that users have to carry each specially designed transformer for each portable electric device to charge the portable electric device. It is obviously quite inconvenient for users to carry every possible charging combination for every portable electric device that they carry. Moreover, the weight and the volume of the transformers 16 A or 16 B, used in transforming AC power to DC power, is hard to further reduce. Additionally, it is also difficult to store power cords (power cords 21 A and 23 A of the transformers 16 A and 18 A) because of their lengths. Any portable electric device needs to be equipped with every kind of specially designed transformer to charge from different power sources, increasing the cost of portable electric devices and restricting the development of the information industry.
  • the charging system for charging a plurality of portable devices includes a corresponding charging port for inputting a working voltage, each of the portable devices having a different working voltage.
  • the charging system includes a plurality of transformers for converting a plurality of different input voltages into a standard DC (direct current) voltage. Each of the transformers has an output port for outputting the standard DC voltage.
  • the charging system includes a power cord that includes a first connection end removably connected to the output port of the transformer for inputting the standard DC voltage and a second connection end for outputting the standard DC voltage.
  • the charging system also includes a plurality of conveners lo change the standard DC voltage into the corresponding working voltages of the plurality of portable devices.
  • Each of the converters includes an input port removably connected lo the second connection end of the power cord for receiving the standard DC voltage and an output port removably connected to the charging port of a portable device for outputting the working voltage of the portable device.
  • users can connect the power cord to the corresponding converter and to any one of the transformers, using the standard DC voltage to charge the plurality of the portable devices.
  • FIG. 1 is a schematic diagram of a charging system of a portable electric device according to the prior art.
  • FIG. 2 is a schematic diagram of a charging system of a portable electric device according to the present invention.
  • FIG. 3 is a state diagram of a combination of a power source, a transformer, a power cord, a converter, and a portable electric device shown in FIG. 2 .
  • FIG. 2 is a schematic diagram illustrating a charging system 30 according to the present invention.
  • Portable electric devices 10 A and 10 B have corresponding charging ports 50 A and 50 B for inputting a specially designed DC working voltage into the portable electric devices.
  • the portable electric device can be a mobile phone, a PDA, or obviously nearly any device requiring a DC working voltage. Only two portable electric devices are shown in FIG. 2 allowing easy explanation of this embodiment.
  • the charging system 30 comprises transformers 32 A, 32 B, 32 C corresponding to respective power supplies and converters 42 A and 42 B corresponding to the respective portable electric devices.
  • the transformers 32 A, 32 B, and 32 C correspond to different power supply sources.
  • the converters 42 A and 42 B correspond respectively to the portable electric devices 10 A and 10 B.
  • a power cord 40 removably connected between a transformer and a converter, transmits a standard DC voltage generated by a transformer to a converter.
  • a housing of the transformer is made of a hard plastic. That is, the transformer comprises a hard cubic structure and is easy to carry. Each transformer comprises a standard outputinstalled on the housing.
  • the preferred embodiment, shown in FIG. 2 shows that the transformer 32 A alters the power of a battery 35 into the standard DC voltage and outputs the transformed power via an output port 34 A.
  • the transformer 32 B transforms an AC power 20 , input via an input port 36 B, into the standard DC voltage and outputs the transformed power via an output port 34 B.
  • the transformer 32 C changes a DC power 22 (for example, provided by a car or an airplane), input via an input port 36 C, into a standard DC voltage and outputs the transformed power via an output port 34 C.
  • a different transformer alters each kind of input power into the standard DC voltage and outputs the transformed power via a standard output port.
  • the shape of the transformers 32 A, 32 B and 32 C output ports 34 A, 34 B and 34 C are the same.
  • the standard DC voltages output via the output ports 34 A, 34 B and 34 C are also the same.
  • the charging system 30 has a corresponding converter for each portable electric device.
  • Each converter comprises an input port and an output port.
  • Each input port receives a standard DC voltage, but each output port corresponds to a different specially designed charging port of a portable electric device.
  • Each converter inputs a standard DC voltage via an input port 46 A or 46 B, transforms the input power into a specially designed working voltage of the corresponding portable electric device, and outputs the transformed voltage via an output port 48 A or 48 B.
  • the converters 42 A and 42 B correspond respectively to the portable electric devices 10 A and 10 B.
  • the converters” 42 A and 42 B respective input ports 46 A and 46 B are standardized.
  • the output port 48 A of the converter 42 A corresponds to the charging port 50 A of the portable electric device 10 A.
  • the converter 42 A transforms the standard DC voltage into the specially designed working voltage of the portable electric device 10 A and outputs the transformed voltage via the output port 48 A.
  • the output port 48 B of the converter 42 B corresponds to the charging port 50 B of the portable electric device 10 B.
  • the converter 42 B transforms the standard DC voltage into the specially designed working voltage of the portable electric device 10 B and outputs the transformed voltage via the output port 48 B.
  • the power cord 40 transmits electric power between the transformers 32 A, 32 B and 32 C and the converters 42 A and 42 B.
  • the power cord 40 has a first connection end 45 and a second connection end 43 .
  • the first connection end 45 can removably connect to the output port of each transformer.
  • the second connection end 43 can removably connect to the input port of each converter.
  • the first connection end 45 conforms to the same standard as that of the second connection end 43 , making the connection ends 43 and 45 of the power cord 40 interchangeable.
  • the output port of the transformer can be a standard USB, RS232, PS2, or 1394 interface.
  • the corresponding power cord 40 must have the same standard.
  • An operation of the charging system 30 according to the present invention can be described as follows.
  • users charge a portable electric device, they connect a transformer to the corresponding power source and the transformer alters the power to the standard DC voltage.
  • An output port of the transformer connects with a first connection end of a power cord.
  • a second connection end of the power cord connects with an input port of a converter.
  • An output port of the converter connects to a charging port of a portable electric device.
  • a power source is transformed into the standard DC voltage by the transformer, output via the standard output port of the transformer, transmitted via the power cord to the standard input port of the converter.
  • the converter alters the standard DC voltage into a specially designed working voltage that is outputted via the output port of the converter to the charging port the portable electric device.
  • the portable electric device is charged.
  • FIG. 3 is a state diagram of a combination of a power source, a transformer, a power cord, a converter, and a portable electric device according to the present invention.
  • To charge the portable electric device 10 B connect the power cord 40 to the output port 34 B of the transformer 32 B and to the input port 46 B of the converter 42 B. Now connect the output port 48 B of the convener 42 B to the input port 50 B of the portable electric device 10 B.
  • the transformer changes the AC power 20 into the standard DC voltage and the converter 42 B transforms the standard DC voltage into a specially designed working voltage that charges the portable electric device 10 B via the charging port 50 B.
  • the most important characteristic of the present invention is using a separate power cord to connect the standardized output port of a transformer with the standardized input port of a converter.
  • a separate power cord to connect the standardized output port of a transformer with the standardized input port of a converter.
  • users can charge the portable electric device 10 A with the AC power 20 via the output port 48 A of the converter 42 A by connecting the power cord 40 between the transformer 32 B and the converter 42 A.
  • the second connection end 43 of the power cord 40 can connect selectively the converter 42 A or 42 B to charge the portable electric device 10 A or 10 B because of the standardized input ports 46 A and 46 B of the converters 42 A and 42 B.
  • the portable electric device according to the present invention need not provide any specially designed transformers for different input power sources.
  • users can charge the portable electric device 10 B with the DC power 22 via the output port 48 B of the converter 42 B by connecting the power cord 40 between the transformer 32 C and the converter 42 B.
  • the power cord 40 can selectively connect to the transformers 32 A, 32 B, and 32 C. Therefore, various power sources, such as the battery 35 , the AC power 20 , or the DC power 22 can be used as long as the second end 43 of the power cord 40 connects to the input port 46 B of the converter 42 B. It is worthwhile to mention that many portable electric devices comprise a built-in USB standard charging port.
  • the transformers and the corresponding power cords according to the present invention can be designed to the USB standard. Thus, each transformer can transform different power sources to a USB standard voltage and directly charge a portable electric device comprising a USB charging port.
  • each portable electric device is equipped with only one corresponding converter.
  • Each power source used requires only one transformer. Users can charge different portable electric devices with different kinds of power sources via a power cord using the standard output port of a transformer and the standard input port of a converter. Therefore, users do not need to carry every charging system with them.
  • the weight and volume of the converter according to the present invention is very small because the converter only transforms a standard DC voltage into another DC voltage. Additionally, the hard, cubic construction of transformers according to the present invention provides for easier carrying and the short power cord makes for easier storage.
  • the present invention provides a single power charging system to charge multiple portable electric devices, eliminating the need for complete specially designed charging systems for each portable electric device and for each different kind of power source.

Abstract

A power charging system for charging portable electric devices. The power charging system includes a plurality of transformers for transforming a plurality of different input voltages into a standard DC (direct current) voltage. The charging system also includes a power cord for inputting and outputting the standard DC voltage. The charging system also includes a plurality of converters for converting the standard DC voltage into the working voltage of the portable electric devices. Users connect the corresponding converters to the power cord and then connect the power cord to any one of the transformers to use the standard DC voltage to charge the portable electric devices.

Description

BACKGROUND OF INVENTION
1. Field of the Invention
The present invention relates to a power charging system, and more particularly, to a power charging system for portable electric devices.
2. Description of the Prior Art
In modern society, many people carry portable electric devices, such as a mobile phone, a PDA (personal digital assistant), a hand-held computer, a notebook computer, and so on. Many users carry two or more of these portable devices to access electrical data and interchange information with others. A charging system including a transformer and power cord designed for each portable electric device allows usage of these portable electric devices anytime and anywhere.
The convenience of portable electric devices becomes a disadvantage when users have to carry two or even more (depending on how many portable electric devices they carry) charging systems with them to charge their different portable electric devices. Please refer to FIG. 1. FIG. 1 is a schematic diagram illustrating a portable electric device 10A charging system according to prior art. The portable electric device 10A has a charging port 12A for inputting a DC (direct current) working voltage. Two corresponding transformers 16A and 18A are used to charge the portable electric device 10A. An AC (alternating current) power 20 is input via an input port 17A of the transformer 16A, altered by the transformer 16A to the working voltage of the portable electric device 10A, and output via an output port 14A of the transformer 16A. In a similar manner, a DC power 22 is input via an input port 19A of the transformer 18A, altered to the working voltage of the portable electric device 10A, and output via an output port 15A of the transformer 18A. Users can select the transformer 16A or 18A to charge the portable electric device 10A by connecting the input port of the transformer to a corresponding power source and connecting the output port of the transformer to the charging port 12A of the portable electric device 10A. In conclusion, an input power is first transformed into the specially designed working voltage of a portable device by a corresponding transformer, delivered from the output port of the transformer to the corresponding charging port of the portable electric device, and is finally used to charge the portable electric device.
According to a similar prior art, a portable electric device 10B, shown in FIG. 1, also has a specially designed charging port 12B for inputting its specially designed working voltage. The transformers 16B and 18B respectively have corresponding output ports 14B and 15B. An AC power 20 is input via an input port 17B of the transformer 16B, altered by the transformer 16B into the specially designed working voltage of the portable electric device 10B, and output to the charging port 12B via the output port 14B of the transformer 17B. Similarly, a DC power 22 is input via an input port 19B of the transformer 18B, altered to the specially designed working voltage of the portable electric device 10B, and output to the charging port 12B via the output port 15B of the transformer 18B.
Different portable electric devices have different specially designed working voltages. For example, the working voltage of modern portable electric devices varies from 3 volts to 12 volts. The charging port of each portable electric device also has a different shape and structure. A prior art portable electric device is equipped with its own specially designed transformer. These special transformers convert an input power via their input ports into the specially designed working voltage of the corresponding portable electric device. The output ports of these transformers must match the specially designed charging port of the portable electric device. Thus, when users carry two (or even more) portable electric devices, they have to carry corresponding specially designed transformers to charge their portable electric devices.
According to the prior art shown in FIG. 1, although the transformers 16A and 16B both can transform the AC power 20 to DC power, the transformed voltages that are output from each transformer are still the two specially designed and often different working voltages of the portable electric devices 10A and 10B. The output ports 14A and 14B of the transformers 16A and 16B also have different shapes. These two reasons make the specially designed transformer 16A of the portable electric device 10A incompatible with the portable electric device 10B. Likewise, the specially designed transformer 16B of the portable electric device 10B cannot charge the portable electric device 10A.
If users plan to charge a portable electric device with two different kinds of power sources, they have to carry at least two different specially designed transformers for each portable electric device to transform different power sources into the specially designed working voltage of the portable electric device. As shown in FIG. 1, users have to carry the two specially designed transformers 16A and 18A with them to charge the portable electric device 10A from two different power sources, the DC power 22 and the AC power 20.
A disadvantage of prior art is that users have to carry each specially designed transformer for each portable electric device to charge the portable electric device. It is obviously quite inconvenient for users to carry every possible charging combination for every portable electric device that they carry. Moreover, the weight and the volume of the transformers 16A or 16B, used in transforming AC power to DC power, is hard to further reduce. Additionally, it is also difficult to store power cords ( power cords 21A and 23A of the transformers 16A and 18A) because of their lengths. Any portable electric device needs to be equipped with every kind of specially designed transformer to charge from different power sources, increasing the cost of portable electric devices and restricting the development of the information industry.
SUMMARY OF INVENTION
It is therefore a primary objective of the claimed invention to provide a single power charging system to charge a plurality of portable electric devices so as to solve the above mentioned problems.
According to the claimed invention, the charging system for charging a plurality of portable devices includes a corresponding charging port for inputting a working voltage, each of the portable devices having a different working voltage. The charging system includes a plurality of transformers for converting a plurality of different input voltages into a standard DC (direct current) voltage. Each of the transformers has an output port for outputting the standard DC voltage. The charging system includes a power cord that includes a first connection end removably connected to the output port of the transformer for inputting the standard DC voltage and a second connection end for outputting the standard DC voltage. The charging system also includes a plurality of conveners lo change the standard DC voltage into the corresponding working voltages of the plurality of portable devices. Each of the converters includes an input port removably connected lo the second connection end of the power cord for receiving the standard DC voltage and an output port removably connected to the charging port of a portable device for outputting the working voltage of the portable device. When charging portable devices, users can connect the power cord to the corresponding converter and to any one of the transformers, using the standard DC voltage to charge the plurality of the portable devices.
It is an advantage of the claimed invention that a single power charging system can charge a plurality of portable electric devices.
These and other objectives of the claimed invention will no doubt become obvious to those of ordinary skill in the art after reading the following detailed description of the preferred embodiment that is illustrated in the various figures and drawings.
BRIEF DESCRIPTION OF DRAWINGS
FIG. 1 is a schematic diagram of a charging system of a portable electric device according to the prior art.
FIG. 2 is a schematic diagram of a charging system of a portable electric device according to the present invention.
FIG. 3 is a state diagram of a combination of a power source, a transformer, a power cord, a converter, and a portable electric device shown in FIG. 2.
DETAILED DESCRIPTION
Please refer to FIG. 2. FIG. 2 is a schematic diagram illustrating a charging system 30 according to the present invention. Portable electric devices 10A and 10B have corresponding charging ports 50A and 50B for inputting a specially designed DC working voltage into the portable electric devices. The portable electric device can be a mobile phone, a PDA, or obviously nearly any device requiring a DC working voltage. Only two portable electric devices are shown in FIG. 2 allowing easy explanation of this embodiment.
The charging system 30 according to the present invention comprises transformers 32A, 32B, 32C corresponding to respective power supplies and converters 42A and 42B corresponding to the respective portable electric devices. The transformers 32A, 32B, and 32C correspond to different power supply sources. The converters 42A and 42B correspond respectively to the portable electric devices 10A and 10B. A power cord 40, removably connected between a transformer and a converter, transmits a standard DC voltage generated by a transformer to a converter.
In this preferred embodiment, a housing of the transformer is made of a hard plastic. That is, the transformer comprises a hard cubic structure and is easy to carry. Each transformer comprises a standard outputinstalled on the housing. The preferred embodiment, shown in FIG. 2, shows that the transformer 32A alters the power of a battery 35 into the standard DC voltage and outputs the transformed power via an output port 34A. The transformer 32B transforms an AC power 20, input via an input port 36B, into the standard DC voltage and outputs the transformed power via an output port 34B. The transformer 32C changes a DC power 22(for example, provided by a car or an airplane), input via an input port 36C, into a standard DC voltage and outputs the transformed power via an output port 34C. According to the present invention, a different transformer alters each kind of input power into the standard DC voltage and outputs the transformed power via a standard output port. In another words, the shape of the transformers 32A, 32B and 32 C output ports 34A, 34B and 34C are the same. The standard DC voltages output via the output ports 34A, 34B and 34C are also the same.
The charging system 30 according to the present invention has a corresponding converter for each portable electric device. Each converter comprises an input port and an output port. Each input port receives a standard DC voltage, but each output port corresponds to a different specially designed charging port of a portable electric device. Each converter inputs a standard DC voltage via an input port 46A or 46B, transforms the input power into a specially designed working voltage of the corresponding portable electric device, and outputs the transformed voltage via an output port 48A or 48B. As shown in FIG. 2, the converters 42A and 42B correspond respectively to the portable electric devices 10A and 10B.
The converters” 42A and 42B respective input ports 46A and 46B are standardized. The output port 48A of the converter 42A corresponds to the charging port 50A of the portable electric device 10A. The converter 42A transforms the standard DC voltage into the specially designed working voltage of the portable electric device 10A and outputs the transformed voltage via the output port 48A. In the same manner, the output port 48B of the converter 42B corresponds to the charging port 50B of the portable electric device 10B. The converter 42B transforms the standard DC voltage into the specially designed working voltage of the portable electric device 10B and outputs the transformed voltage via the output port 48B.
According to the present invention, the power cord 40 transmits electric power between the transformers 32A, 32B and 32C and the converters 42A and 42B. The power cord 40 has a first connection end 45 and a second connection end 43. The first connection end 45 can removably connect to the output port of each transformer. The second connection end 43 can removably connect to the input port of each converter. According to the present invention, the first connection end 45 conforms to the same standard as that of the second connection end 43, making the connection ends 43 and 45 of the power cord 40 interchangeable. The output port of the transformer can be a standard USB, RS232, PS2, or 1394 interface. The corresponding power cord 40, of course, must have the same standard.
An operation of the charging system 30 according to the present invention can be described as follows. When users charge a portable electric device, they connect a transformer to the corresponding power source and the transformer alters the power to the standard DC voltage. An output port of the transformer connects with a first connection end of a power cord. A second connection end of the power cord connects with an input port of a converter. An output port of the converter connects to a charging port of a portable electric device. A power source is transformed into the standard DC voltage by the transformer, output via the standard output port of the transformer, transmitted via the power cord to the standard input port of the converter. The converter alters the standard DC voltage into a specially designed working voltage that is outputted via the output port of the converter to the charging port the portable electric device. Finally, the portable electric device is charged.
Please refer to FIG. 3 (and FIG. 2). FIG. 3 is a state diagram of a combination of a power source, a transformer, a power cord, a converter, and a portable electric device according to the present invention. To charge the portable electric device 10B, connect the power cord 40 to the output port 34B of the transformer 32B and to the input port 46B of the converter 42B. Now connect the output port 48B of the convener 42B to the input port 50B of the portable electric device 10B. Lastly, connect the input port 36B of the transformer 32B to an AC power source 20. The transformer changes the AC power 20 into the standard DC voltage and the converter 42B transforms the standard DC voltage into a specially designed working voltage that charges the portable electric device 10B via the charging port 50B.
The most important characteristic of the present invention is using a separate power cord to connect the standardized output port of a transformer with the standardized input port of a converter. Thus, there is no need to provide a specially designed transformer for each portable electric device. For example, users can charge the portable electric device 10A with the AC power 20 via the output port 48A of the converter 42A by connecting the power cord 40 between the transformer 32B and the converter 42A. The second connection end 43 of the power cord 40 can connect selectively the converter 42A or 42B to charge the portable electric device 10A or 10B because of the standardized input ports 46A and 46B of the converters 42A and 42B. Additionally, the portable electric device according to the present invention need not provide any specially designed transformers for different input power sources. For example, users can charge the portable electric device 10B with the DC power 22 via the output port 48B of the converter 42B by connecting the power cord 40 between the transformer 32C and the converter 42B.
Because standardized connectors are used, the power cord 40 can selectively connect to the transformers 32A, 32B, and 32C. Therefore, various power sources, such as the battery 35, the AC power 20, or the DC power 22 can be used as long as the second end 43 of the power cord 40 connects to the input port 46B of the converter 42B. It is worthwhile to mention that many portable electric devices comprise a built-in USB standard charging port. The transformers and the corresponding power cords according to the present invention can be designed to the USB standard. Thus, each transformer can transform different power sources to a USB standard voltage and directly charge a portable electric device comprising a USB charging port.
According to the present invention, each portable electric device is equipped with only one corresponding converter. Each power source used requires only one transformer. Users can charge different portable electric devices with different kinds of power sources via a power cord using the standard output port of a transformer and the standard input port of a converter. Therefore, users do not need to carry every charging system with them. The weight and volume of the converter according to the present invention is very small because the converter only transforms a standard DC voltage into another DC voltage. Additionally, the hard, cubic construction of transformers according to the present invention provides for easier carrying and the short power cord makes for easier storage.
In contrast to the prior art, the present invention provides a single power charging system to charge multiple portable electric devices, eliminating the need for complete specially designed charging systems for each portable electric device and for each different kind of power source.
Following the detailed description of the present invention above, those skilled in the art will readily observe that numerous modifications and alterations of the device may be made while retaining the teachings of the invention. Accordingly, the above disclosure should be construed as limited only by the metes and bounds of the appended claims.

Claims (34)

1. A charging system for charging a plurality of portable devices, each of the portable devices comprising a corresponding charging port for inputting a working voltage of the portable device, each of the portable devices having different working voltages a first portable device of the plurality of portable devices having a first working voltage and a second portable device of the plurality of portable devices having a second working voltage different from the first working voltage, the charging system comprising:
a plurality of transformers for transforming a plurality of different input voltages into a standard single DC (direct current) power voltage, each of the transformers having an output port for outputting the standard DC power voltage;
a power cord comprising a first connection end connected to the output port of the transformer for inputting the standard single DC power voltage, and a second connection end for outputting the standard single DC power voltage; and
a plurality of converters for converting the standard single DC power voltage to the working voltage of the plurality of portable devices, each of the converters comprising an input port removably connected to the second connection end of the power cord for receiving the standard single DC power voltage, and an output port removably connected to the charging port of a portable device for outputting the working voltage of the portable device;
wherein when charging the plurality of portable devices, users are capable of connecting the corresponding converters are configured to connect to the power cord, and then connecting the power cord is configured to connect to any one of the transformers so as to use the standard single DC power voltage to charge one of the plurality of the portable devices.
2. The charging system of claim 1 wherein the transformer comprises a hard housing, and the output port of the transformer is installed on the hard housing.
3. The charging system of claim 1 wherein the portable device is a mobile phone.
4. The charging system of claim 1 wherein the portable device is a personal digital assistant (PDA).
5. The charging system of claim 1 wherein the transformer is capable of transforming an AC (alternating current) power into the standard single DC power voltage.
6. The charging system of claim 1 wherein the transformer is capable of transforming a DC battery power into the standard single DC power voltage.
7. The charging system of claim 1 wherein the transformer is capable of transforming a DC power of an automobile into the standard single DC power voltage.
8. The charging system of claim 1 wherein the transformer is capable of transforming a DC power of an airplane into the standard single DC power voltage.
9. A charging system for charging a portable device, the portable device comprising a charging port for inputting a standard single DC (direct current) power voltage, the charging system comprising:
a plurality of transformers for transforming a plurality of different input voltages into the standard single DC power voltage, each of the transformers having an output port for outputting the standard single DC power voltage; and
a power cord comprising a first connection end removably connected to the output port of the transformer for inputting the standard single DC power voltage, and
a second connection end for outputting the standard single DC power voltage;
wherein when charging the portable device, users are capable of connecting the charging port of the portable device to the second connection end of the power cord, and connecting the first connection end of the power cord to the output port of any one of the transformers so as to use the standard single DC power voltage to charge the portable device.
10. The charging system of claim 9 wherein the transformer comprises a hard housing, and the output port of the transformer is installed on the hard housing.
11. The charging system of claim 9 wherein the portable device is a mobile phone.
12. The charging system of claim 9 wherein the portable device is a personal digital assistant (PDA).
13. The charging system of claim 9 wherein the transformer is capable of transforming an AC (alternating current) power into the standard single DC power voltage.
14. The charging system of claim 9 wherein the transformer is capable of transforming a DC battery power into the standard single DC power voltage.
15. The charging system of claim 9 wherein the transformer is capable of transforming a DC power of an automobile into the standard single DC power voltage.
16. The charging system of claim 9 wherein the transformer is capable of transforming a DC power of an airplane into the standard single DC power voltage.
17. The charging system of claim 9 wherein the second connection end of the power cord is a connection end consistent with the USB (Universal Serial Bus) standard, and the charging port of the portable device is a charging port consistent with the USB standard.
18. A method for charging a plurality of portable devices, each of the portable devices comprising a corresponding charging port for inputting a working voltage of the portable device, a first portable device of the plurality of portable devices having a first working voltage and a second portable device of the plurality of portable devices having a second working voltage different from the first working voltage, the method comprising:
coupling an output port of a first of a plurality of transformers to a first of a plurality of converters, the plurality of transformers for transforming power from a plurality of different input voltage sources into a single DC (direct current) power voltage, each of the transformers having an output port for outputting the single DC power voltage, the plurality of converters for converting the single DC power voltage to the working voltage of the plurality of portable devices, each of the converters comprising an input port selectively coupled to one of the plurality of transformers for receiving the single DC power voltage, and an output port removably connected to the charging port of a portable device for outputting the working voltage of the portable device;
coupling the first of the plurality of transformers to a first of the plurality of different input voltage sources;
coupling the output port of the first of the plurality of converters to the first portable device;
decoupling the first of the plurality of transformers from the first of the plurality of converters and coupling a second of the plurality of transformers to the first of the plurality of converters; and
coupling the second of the plurality of transformers to a second of the plurality of different voltage sources.
19. The method of claim 18, further comprising:
decoupling the first of the plurality of converters from the first of the plurality of transformers;
coupling a second of the plurality of converters to the first of the plurality of transformers;
coupling the output port of the second of the plurality of to a second portable device having a second working voltage different from the first working voltage.
20. The method of claim 18, wherein the plurality of transformers comprise a hard housing, and the output port of the transformer is installed on the hard housing.
21. The method of claim 18, wherein the portable device is a mobile phone.
22. The method of claim 18, wherein the portable device is a personal digital assistant (PDA).
23. The method of claim 18, wherein at least one of the plurality of transformers is capable of transforming an AC (alternating current) power into the single DC power voltage.
24. The method of claim 18, wherein at least one of the plurality of transformers is capable of transforming a DC battery power into the single DC power voltage.
25. The method of claim 18, wherein at least one of the plurality of transformers is capable of transforming a DC power of an automobile into the single DC power voltage.
26. The method of claim 18, wherein at least one of the plurality of transformers is capable of transforming a DC power of an airplane into the single DC power voltage.
27. A charging system for charging a plurality of portable devices, each of the portable devices comprising a corresponding charging port for inputting a working voltage of the portable device, a first portable device of the plurality of portable devices having a first working voltage and a second portable device of the plurality of portable devices having a second working voltage different from the first working voltage, the charging system comprising:
a plurality of transformers for transforming a plurality of different input voltages into a single DC (direct current) power voltage, each of the transformers having an output port for outputting the single DC power voltage;
a plurality of converters each converting the single DC power voltage to the working voltages of one of the plurality of portable devices, each of the converters comprising an input port receiving the single DC power voltage, and an output port removably connected to the charging port of a portable device for outputting the working voltage of one of the portable devices;
a means for coupling the output port of one of the plurality of transformers to the input port of one of the plurality of converters; and
wherein the corresponding converters are configured to connect to the means for coupling, and the means for coupling is configured to connect to any one of the transformers so as to use the single DC power voltage to charge one of the plurality of portable devices.
28. The charging system of claim 27 wherein the transformer comprises a hard housing, and the output port of the transformer is installed on the hard housing.
29. The charging system of claim 27 wherein the portable device is a mobile phone.
30. The charging system of claim 27 wherein the portable device is a personal digital assistant (PDA).
31. The charging system of claim 27 wherein the transformer is capable of transforming an AC (alternating current) power into the single DC power voltage.
32. The charging system of claim 27 wherein the transformer is capable of transforming a DC battery power into the single DC power voltage.
33. The charging system of claim 27 wherein the transformer is capable of transforming a DC power of an automobile into the single DC power voltage.
34. The charging system of claim 27 wherein the transformer is capable of transforming a DC power of an airplane into the single DC power voltage.
US11/442,739 2001-09-07 2006-05-25 Power charging system and related apparatus Expired - Lifetime USRE41675E1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120268076A1 (en) * 2011-04-20 2012-10-25 Carl Lee Danner Control of battery charging power

Families Citing this family (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7573159B1 (en) 2001-10-22 2009-08-11 Apple Inc. Power adapters for powering and/or charging peripheral devices
TW565761B (en) * 2002-08-08 2003-12-11 Argosy Res Inc A current control device and method
US20040073820A1 (en) * 2002-10-14 2004-04-15 Benq Corporation Charging device with output interface of universal serial bus
GB2401258B (en) * 2003-04-29 2005-06-22 Research In Motion Ltd Multiple function current-sharing charging system and method
TWI229490B (en) * 2003-06-20 2005-03-11 Ren-Tang Jang Structure of power supply for external tool
US20050189914A1 (en) * 2003-12-05 2005-09-01 Sam Esses Universal cellular telephone battery charger
TWM259260U (en) * 2004-04-16 2005-03-11 Cheng-Yu Huang Computer peripheral apparatus having light illumination
US20060019532A1 (en) * 2004-07-26 2006-01-26 Kiss Laszlo Jr Universal USB cable
US20070072476A1 (en) * 2005-08-24 2007-03-29 Henry Milan Universal serial bus hub
US7952322B2 (en) * 2006-01-31 2011-05-31 Mojo Mobility, Inc. Inductive power source and charging system
US11201500B2 (en) 2006-01-31 2021-12-14 Mojo Mobility, Inc. Efficiencies and flexibilities in inductive (wireless) charging
US8169185B2 (en) * 2006-01-31 2012-05-01 Mojo Mobility, Inc. System and method for inductive charging of portable devices
US7642671B2 (en) * 2006-04-28 2010-01-05 Acco Brands Usa Llc Power supply system providing two output voltages
TWI291267B (en) * 2006-05-11 2007-12-11 Delta Electronics Inc Multi-usage power input plug assembly and power adapter using the same
US20070278995A1 (en) * 2006-05-31 2007-12-06 Steven Lynn Batdorff Recharging power source with lighting accessory
US11329511B2 (en) 2006-06-01 2022-05-10 Mojo Mobility Inc. Power source, charging system, and inductive receiver for mobile devices
US7948208B2 (en) * 2006-06-01 2011-05-24 Mojo Mobility, Inc. Power source, charging system, and inductive receiver for mobile devices
US20080061736A1 (en) * 2006-09-07 2008-03-13 Feng-Ming Ho Multi-functional cable
US20080155161A1 (en) * 2006-12-22 2008-06-26 Clifton Broumand Smart cable option
US7701080B2 (en) * 2007-02-13 2010-04-20 Ford Global Technologies, Llc USB for vehicle application
DE102007061866A1 (en) * 2007-12-19 2009-06-25 Bergert & Maniewski GbR (vertretungsberechtigter Gesellschafter: Jonas Bergert, 52070 Aachen) Charging device for mobile handset, has magnet e.g. permanent magnet, formed for connection between charging device and mobile hand set, where magnet is formed as part of charging device
TWM346971U (en) * 2008-01-15 2008-12-11 Hsi-Tung Lin Mobile power bank
US20110050164A1 (en) 2008-05-07 2011-03-03 Afshin Partovi System and methods for inductive charging, and improvements and uses thereof
US20100213892A1 (en) * 2009-02-23 2010-08-26 Desanctis Jeanne Portable docking station for powering multiple AC-powered battery chargers and multiple DC-powered battery chargers simultaneously
US8766476B2 (en) 2009-10-02 2014-07-01 Ramin Rostami Apparatus and method for communicating data and power with electronic devices
WO2011002416A2 (en) * 2009-07-01 2011-01-06 Agreenc Pte Ltd Charging apparatus for electronic devices
US9118194B2 (en) 2012-04-30 2015-08-25 Foreign Trade Corporation Configurable apparatus and methods for supplying power and data to electronic devices
US8169105B2 (en) * 2009-07-12 2012-05-01 Ramin Rostami Configurable apparatus and methods for supplying power and data to electronic devices
US8552690B2 (en) * 2009-11-06 2013-10-08 Rally Manufacturing, Inc. Method and system for automatically detecting a voltage of a battery
US9662438B2 (en) * 2010-02-05 2017-05-30 Deka Products Limited Partnership Devices, methods and systems for wireless control of medical devices
US11660392B2 (en) 2010-02-05 2023-05-30 Deka Products Limited Partnership Devices, methods and systems for wireless control of medical devices
US9715607B2 (en) 2010-02-11 2017-07-25 Advanced Wireless Innovations Llc Apparatus and methods for communicating power and data with electronic devices
US8149570B2 (en) * 2010-03-18 2012-04-03 Keebler John C Universal power supply system
US8519564B2 (en) * 2010-05-12 2013-08-27 Apple Inc. Multi-output power supply
EP2580844A4 (en) 2010-06-11 2016-05-25 Mojo Mobility Inc System for wireless power transfer that supports interoperability, and multi-pole magnets for use therewith
US20120068535A1 (en) * 2010-09-20 2012-03-22 Radioshack Corporation Energy converter, and associated method, for providing converted energy to a set of electronic devices
US11342777B2 (en) 2011-01-18 2022-05-24 Mojo Mobility, Inc. Powering and/or charging with more than one protocol
US9356659B2 (en) 2011-01-18 2016-05-31 Mojo Mobility, Inc. Chargers and methods for wireless power transfer
US9178369B2 (en) 2011-01-18 2015-11-03 Mojo Mobility, Inc. Systems and methods for providing positioning freedom, and support of different voltages, protocols, and power levels in a wireless power system
US9496732B2 (en) 2011-01-18 2016-11-15 Mojo Mobility, Inc. Systems and methods for wireless power transfer
US10115520B2 (en) 2011-01-18 2018-10-30 Mojo Mobility, Inc. Systems and method for wireless power transfer
US8575895B2 (en) 2011-03-29 2013-11-05 Rally Manufacturing, Inc. Method and device for voltage detection and charging of electric battery
US20130019046A1 (en) * 2011-07-15 2013-01-17 Skymedi Corporation Data transmitting device and system for portable device and method thereof
CN103959592B (en) * 2011-10-08 2019-02-01 高通股份有限公司 Power supply adaptor and the method for making electric power adapt to electronic equipment
US9722447B2 (en) 2012-03-21 2017-08-01 Mojo Mobility, Inc. System and method for charging or powering devices, such as robots, electric vehicles, or other mobile devices or equipment
US9153914B2 (en) * 2012-08-17 2015-10-06 Advanced Charging Technologies, LLC Power device having multiple modes of operation
US9520799B2 (en) 2012-08-17 2016-12-13 Advanced Charging Technologies, LLC Power device
US9991821B2 (en) 2012-08-17 2018-06-05 Advanced Charging Technologies, LLC Transformerless multiple output capable power supply system
US9438060B2 (en) 2012-12-26 2016-09-06 Colorado Energy Research Technologies, LLC Power recovery controller
US9325188B2 (en) 2012-12-26 2016-04-26 Colorado Energy Research Technologies, LLC Power recovery controller
US9428069B2 (en) 2012-12-26 2016-08-30 Colorado Energy Research Technologies, LLC Systems and methods for efficiently charging power recovery controller
US9837846B2 (en) 2013-04-12 2017-12-05 Mojo Mobility, Inc. System and method for powering or charging receivers or devices having small surface areas or volumes
WO2016148638A1 (en) * 2015-03-13 2016-09-22 Prufen Pte Ltd A cable for data and current transmission and a related apparatus
TWI567538B (en) * 2015-05-22 2017-01-21 台達電子工業股份有限公司 Power adaptor
US10367362B2 (en) 2016-10-21 2019-07-30 RLW Virtual Solutions, LLC Disposable package assembly for batteries with added charging function
TWI626813B (en) * 2017-01-26 2018-06-11 東莞崧騰電子有限公司 Electronic device charger
US11444485B2 (en) 2019-02-05 2022-09-13 Mojo Mobility, Inc. Inductive charging system with charging electronics physically separated from charging coil

Citations (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5280229A (en) * 1990-11-15 1994-01-18 Bsg-Schalttechnik Gmbh & Co. Kg Charging device for rechargeable batteries
US5510691A (en) * 1994-04-13 1996-04-23 Xtend Micro Products, Inc Modular power supply and modular interconnect system for portable electronic equipment
US5844472A (en) * 1997-07-25 1998-12-01 Lee; Victor Shiu P. Portable rechargeable power supply adaptor with illuminated key holder
US5977747A (en) * 1998-08-20 1999-11-02 Huang; Hsin-Wei Cellular phone battery charger with an emergency battery charging function
US6064177A (en) * 1999-01-05 2000-05-16 Dixon; Steven C. Two-part battery charger/power cable article with multiple device capability
US6075343A (en) * 1999-02-12 2000-06-13 Quanta Computer Inc. Rechargeable battery pack module
US6087815A (en) * 1997-04-23 2000-07-11 Fiskars Inc. Portable power system using DC to DC converter
US6091611A (en) * 1994-04-26 2000-07-18 Comarco Wireless Technologies, Inc. Connectors adapted for controlling a small form factor power supply
US6172477B1 (en) * 1997-04-09 2001-01-09 Samsung Electronics Co., Ltd. Apparatus for charging a battery of a portable terminal
US6184652B1 (en) * 2000-03-14 2001-02-06 Wen-Chin Yang Mobile phone battery charge with USB interface
US6204632B1 (en) * 1999-09-08 2001-03-20 Selfcharge Apparatus for charging multiple batteries
US6204637B1 (en) * 1999-03-16 2001-03-20 International Business Machines Corporation Method and system for remotely supplying power through an automated power adapter to a data processing system
US6211649B1 (en) * 1999-03-25 2001-04-03 Sourcenext Corporation USB cable and method for charging battery of external apparatus by using USB cable
US6212088B1 (en) * 1999-11-30 2001-04-03 Wafermasters Incorporated Modular voltage adapter and method for using same
US6236187B1 (en) * 2000-09-27 2001-05-22 Tsung-Ming Chen Plug-in charging battery module
US6316911B1 (en) * 1997-08-08 2001-11-13 Black & Decker Inc. Battery and flashlight recharger
US6344727B1 (en) * 2001-03-05 2002-02-05 Motorola, Inc. Charger having a data store and data link
US20020195993A1 (en) * 2001-06-22 2002-12-26 Chiu Chiu Kai Structure of an AC adaptor for mobile telephones
US6504343B1 (en) * 2001-11-08 2003-01-07 Primax Electronics Ltd. Charging systems for simultaneously charging notebook computers and portable devices
US20030042867A1 (en) * 2001-08-30 2003-03-06 Tsung-Jen Chang Power converters and related charging systems
US6563713B2 (en) * 2001-07-24 2003-05-13 Fu-I Yang Power supply unit for a portable game machine
US20030117104A1 (en) * 2001-12-25 2003-06-26 Liao Sheng Hsin Multi-function charger
US6589069B1 (en) * 2002-04-22 2003-07-08 Sheng Hsin Liao Wire reel having a universal serial bus connector capable of doing emergency charging work
US6614206B1 (en) * 2002-05-23 2003-09-02 Palm, Inc. Universal USB charging accessory

Patent Citations (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5280229A (en) * 1990-11-15 1994-01-18 Bsg-Schalttechnik Gmbh & Co. Kg Charging device for rechargeable batteries
US5510691A (en) * 1994-04-13 1996-04-23 Xtend Micro Products, Inc Modular power supply and modular interconnect system for portable electronic equipment
US6091611A (en) * 1994-04-26 2000-07-18 Comarco Wireless Technologies, Inc. Connectors adapted for controlling a small form factor power supply
US6172477B1 (en) * 1997-04-09 2001-01-09 Samsung Electronics Co., Ltd. Apparatus for charging a battery of a portable terminal
US6087815A (en) * 1997-04-23 2000-07-11 Fiskars Inc. Portable power system using DC to DC converter
US5844472A (en) * 1997-07-25 1998-12-01 Lee; Victor Shiu P. Portable rechargeable power supply adaptor with illuminated key holder
US6316911B1 (en) * 1997-08-08 2001-11-13 Black & Decker Inc. Battery and flashlight recharger
US5977747A (en) * 1998-08-20 1999-11-02 Huang; Hsin-Wei Cellular phone battery charger with an emergency battery charging function
US6064177A (en) * 1999-01-05 2000-05-16 Dixon; Steven C. Two-part battery charger/power cable article with multiple device capability
US6075343A (en) * 1999-02-12 2000-06-13 Quanta Computer Inc. Rechargeable battery pack module
US6204637B1 (en) * 1999-03-16 2001-03-20 International Business Machines Corporation Method and system for remotely supplying power through an automated power adapter to a data processing system
US6211649B1 (en) * 1999-03-25 2001-04-03 Sourcenext Corporation USB cable and method for charging battery of external apparatus by using USB cable
US6204632B1 (en) * 1999-09-08 2001-03-20 Selfcharge Apparatus for charging multiple batteries
US6212088B1 (en) * 1999-11-30 2001-04-03 Wafermasters Incorporated Modular voltage adapter and method for using same
US6184652B1 (en) * 2000-03-14 2001-02-06 Wen-Chin Yang Mobile phone battery charge with USB interface
US6236187B1 (en) * 2000-09-27 2001-05-22 Tsung-Ming Chen Plug-in charging battery module
US6344727B1 (en) * 2001-03-05 2002-02-05 Motorola, Inc. Charger having a data store and data link
US20020195993A1 (en) * 2001-06-22 2002-12-26 Chiu Chiu Kai Structure of an AC adaptor for mobile telephones
US6563713B2 (en) * 2001-07-24 2003-05-13 Fu-I Yang Power supply unit for a portable game machine
US20030042867A1 (en) * 2001-08-30 2003-03-06 Tsung-Jen Chang Power converters and related charging systems
US6504343B1 (en) * 2001-11-08 2003-01-07 Primax Electronics Ltd. Charging systems for simultaneously charging notebook computers and portable devices
US20030117104A1 (en) * 2001-12-25 2003-06-26 Liao Sheng Hsin Multi-function charger
US6589069B1 (en) * 2002-04-22 2003-07-08 Sheng Hsin Liao Wire reel having a universal serial bus connector capable of doing emergency charging work
US6614206B1 (en) * 2002-05-23 2003-09-02 Palm, Inc. Universal USB charging accessory

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120268076A1 (en) * 2011-04-20 2012-10-25 Carl Lee Danner Control of battery charging power
US8525483B2 (en) * 2011-04-20 2013-09-03 Carl Lee Danner Control of battery charging power

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