CN100395800C - Energy reclaiming device and method - Google Patents
Energy reclaiming device and method Download PDFInfo
- Publication number
- CN100395800C CN100395800C CNB2004100674509A CN200410067450A CN100395800C CN 100395800 C CN100395800 C CN 100395800C CN B2004100674509 A CNB2004100674509 A CN B2004100674509A CN 200410067450 A CN200410067450 A CN 200410067450A CN 100395800 C CN100395800 C CN 100395800C
- Authority
- CN
- China
- Prior art keywords
- voltage
- inductor
- switch
- capacitive load
- keep
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The present invention relates to an energy recovering device and the method thereof, which can reduce the manufacturing cost. The energy recovering device of the present invention is composed of a capacitive load, a voltage charger, a voltage maintaining device and a voltage relay, wherein the capacitive load is equivalent formed between a scanning electrode and a maintaining electrode; the voltage charger provides the recovered addressing voltage for the capacitive load, and charges the capacitive load; the voltage maintaining device connected with the capacitive load stabilizes the discharge on the capacitive load charged with maintaining voltage, and provides maintaining voltage; the voltage relay connected between the voltage charger and the capacitive load to relay the maintaining voltage.
Description
[technical field]
The invention relates to energy recycle device and its method, in more detail, can reduce the energy recovery circuit apparatus and method of manufacturing cost.
[background technology]
Its principle of work of plasma display (Plasma Display Panel: be designated hereinafter simply as " PDP ") is to pass through He+Xe, Ne+Xe, or the 147nm ultraviolet ray that takes place during noble gas discharge such as He+Xe+Ne impels light-emitting phosphor, and then display text or graph image.This PDP not only can manufacture giant-screen and ultrathin type, and along with its picture quality of exploitation of nearest technology has also significantly raising.There is the wall electric charge on the surface when particularly this 3 electrodes exchange surface discharge type PDP discharge, can prevents the sputter that when discharge, takes place damage effectively, can carry out low voltage drive and increase the service life electrode.
Fig. 1 is the organigram of the cell body of plasma display discharge in the past.
With reference to Fig. 1, the discharge cell body that 3 electrodes exchange surface discharge type PDP constitutes and mainly comprises: the scan electrode (Y) that in preceding glass plate 10, forms and keep electrode (Z), and at the addressing electrode X of back glass plate 18 formation.Scan electrode Y and keep electrode Z and comprise transparency electrode 12Y, 12Z respectively is littler and at the metal that a side of transparency electrode forms conflux (bus) electrode 13Y, 13Z than the wire spoke of transparency electrode 12Y, 12Z.
Transparency electrode 12Y, 12Z are formed in preceding glass plate 10 by indium tin oxide (Indium-Tin-0xide) usually.Metal bus (bus) electrode (13Y, 13Z) is gone up in transparency electrode (12Y, 12Z) by metals such as chromium usually and is formed, reduces the voltage decline that the transparency electrode owing to high impedance causes.Scan electrode Y and keep superposeed in the preceding glass plate 10 that electrode Z forms side by side upper dielectric layer 14 and protective seam 16.The wall electric charge that produces when in upper dielectric layer 14, having plasma discharge.Because of sputter upper dielectric layer 14 is caused damage when protective seam 16 prevents plasma discharge, simultaneously, improve the efficient that 2 electric charges are emitted.Protective seam 16 is normally formed by magnesium.
Be formed with lower dielectric layer 22 and spaced walls 24 in the back glass plate 18 that the addressing electrode X-shaped becomes.Surface in lower dielectric layer 22 and spaced walls 24 scribbles luminescent coating 26.Addressing electrode X is by scan electrode Y and keep the direction formation that electrode 30Z intersects.Spaced walls 24 is strip or groined type, prevents because ultraviolet ray that discharge generates and visible light are leaked to the discharge cell body that closes on.The ultraviolet ray that luminescent coating 26 is taken place during according to plasma discharge produces any visible rays in red, green, the blueness.The discharge space inert gas injecting that between forward and backward glass plate 10.18 and spaced walls, has.
This 3 electrode interchange faces discharge shape PDP is decomposed into a plurality of sons field, and carries out the time-division and cut driving.In each sub-field time by with the video data weighted value being the luminous gray scale that realizes of the number of times of ratio.A plurality of sons field can be divided into reset period, address period and erasing period once more, and drives.
Here, reset period is the period that forms the wall electric charge in the discharge cell body equably; Address period is the period that address discharge takes place according to the theoretical value of video data; The phase of keeping is the period of keeping discharge in the discharge cell body of address discharge generation.
Therewith the address discharge of the interchange face of identical driving discharge PDP with keep discharge, need the above voltages of hundreds of volts.Thus, address discharge and keep the discharge needed driving electric minimize for reaching, need utilize energy recovery circuit.Energy recovery circuit is to reclaim scan electrode Y and the voltage of keeping between the electrode Z, and the voltage that reclaims is utilized as driving voltage when discharging next time.
Fig. 2 keeps sparking voltage for recovery, the synoptic diagram of the energy recovery circuit that in scan electrode Y, forms, and in fact energy recycle device is to be that the center is symmetrical arranged in keeping electrode Z with panel capacitance Cp.
As reference Fig. 2, its formation of energy recovery circuit comprised in the past: with the inductor (L) that is connected between panel capacitance (Cp) and the source electric capacity (Cs); With the 1st and the 3rd switch S 1, S3 in parallel between source capacitor C s and the inductor, the diode D5, the D6 that are provided with between the 1st and the 3rd switch and the inductor; With the 2nd, the 4th switch S 2, S4 in parallel between panel capacitance and the inductor.
Panel capacitance (Cp) will and be kept the static capacity that forms between the electrode Z at scan electrode Y and show of equal valuely, and the 2nd switch links to each other with reference voltage source, and the 4th switch links to each other with reference element (GND).Source electric capacity is recovered in the voltage that charges into to panel capacitance when keeping discharge, in charging the voltage that charges into is provided once more to panel capacitance (Cp).
For this reason, source electric capacity has the capability value that charges into the corresponding Vs/2 voltage of reference voltage source one half value.Inductor and panel capacitance together form resonance circuit.Flowing of the 1st to the 4th switch Control current.The the 5th and the 6th diode prevents that the contrary direction of electric current from flowing.Identical therewith, the diode (D1 is to D4) that is provided with separately in the 1st to the 4th switch also can prevent the reverse flow of electric current.
Fig. 3 be switch shown in Figure 2 switch regularly and the timing and the oscillogram of the output waveform of panel capacitance.
T1 is before the time, and we suppose when panel capacitance charges into 0 volt of voltage, charges into the voltage of Vs/2 and then the explanation detailed in addition to course of action to source electric capacity.
In time, the 1st switch (S1) is under the state of connection at T1, from source capacitor C s, along the route formation current path of the 1st switch S 1, inductor L and panel capacitance.If the formation current path, the Vs/2 voltage that charges into to source electric capacity provides to panel capacitance.At this moment because inductor and panel capacitance form series resonant circuit, so the Vs voltage of source capacitance voltage twice is provided to panel capacitance.
In T2 the 2nd switch S 2 connections in the time.If the 2nd switch connection provides the voltage of reference voltage source to panel capacitance.That is,, the magnitude of voltage of reference voltage source is provided to panel capacitor, prevent that the magnitude of voltage of panel capacitance is reduced to below the reference voltage source if the 2nd switch is connected.Thus, can keep stable discharge.Here, the voltage of panel capacitance has been owing to risen to Vs voltage at T1 in the time, so at T2 in the time, it is minimum that the magnitude of voltage that provides from the outside can reach.(that is, consumption electric power can be more cheap)
During the T3, the 1st switch is in closing state.At this moment, panel capacitance is kept the voltage Vs of reference voltage source.T4 in the time when the 2nd switch cuts out, the 3rd switch connection.If the 3rd switch is connected,,, form current path with source capacitor C s by inductor and the 3rd switch from panel capacitance.The voltage that charges into to panel capacitance is recycled to source electric capacity.At this moment, charge into Vs/2 voltage to source capacitor C s.
T5 in the time when the 3rd switch cuts out the 4th switch connection.If the 4th switch is connected, between panel capacitance and reference element, form current path, the voltage of panel capacitance drops to 0 volt.T6 keeps the T5 state of certain hour in the time, in fact, to scan electrode with keep AC driving pulse that electrode provides repeatedly and draw on T1 and T6 time cycle ground.
But, for manufacturing expense that identical therewith energy recycle device in the past needs being set than higher.That is, the employed inductor L of energy recovery circuit in the past cost makes manufacturing expense bigger than higher.
[summary of the invention]
Thus, the purpose of energy recovery circuit device of the present invention is exactly to reduce the expense of its making.
For achieving the above object, its formation of energy recycle device according to example of the present invention comprises with lower member: at scan electrode and keep between the electrode capacitive load that forms of equal value; To provide to capacitive load once more from the addressing voltage that capacitive load reclaims, and to the voltage charging device of capacitive load charging; Link to each other with capacitive load, make stable discharging in keeping the capacitive load that voltage charges into, the voltage of keeping voltage holdout device is provided; Be arranged between voltage charging device and the capacitive load, and link to each other with capacitive load with the voltage charging device, relaying is kept the voltage relay of voltage; The formation of described voltage charging device comprises: the 1st capacitor, be connected between the end and reference element of voltage relay, and reclaim and keep voltage, and make the capacitive load charging; The 2nd capacitor is connected between the other end and reference element of voltage relay, reclaims and keeps voltage, and make the capacitive load charging; The 1st switch is connected between the end and reference element of voltage relay, and in parallel with the 1st capacitor, forms current path with the 1st inductor and the 2nd capacitor; The 2nd switch is connected between the other end and reference element of voltage relay, and is in parallel with the 2nd capacitor, forms current path with the 1st inductor and the 1st capacitor.。
Said voltage relay is equipped with inductor above in energy recycle device, and it is the magnetic inductor that is closed by magnetic knot by two coils.
Magnetic inductor is equipped with in energy recycle device: the 1st inductor that is connected with the voltage charging device, 2nd inductor in parallel with capacitive load.
Above in the said energy recycle device one of its characteristics be exactly that the coil of the 1st and the 2nd inductor twines by same direction.
In energy recycle device, keep voltage after a side direction of the 1st inductor provides, keep to the 2nd inductor opposite side direction, the scan electrode to capacitive load is provided.
In the said in the above energy recycle device, characteristics are that the 1st and the 2nd inductor coil twines by opposite direction.
Keep voltage in the above in the said energy recycle device after the side direction to the 1st inductor provides, keep, the scan electrode to capacitive load is provided to a side direction of the 2nd inductor.
In energy recycle device, above said its formation of voltage holdout device comprise: the voltage source of keeping of keeping voltage is provided; Be arranged on and keep between voltage source and the reference element, when keeping the 3rd switch and the 4th switch of connecting when voltage provides scan electrode to capacitive load; Be arranged on and keep between voltage source and the reference element, keep voltage provide to capacitive load keep electrode the time the 5th and the 6th switch connected.
Except top purpose, other purpose of the present invention and feature are embodied by the enforcement example is described in detail with reference to the figure that is given.
Identical with the above, energy recycle device of the present invention and method have used the transformer that is set up in parallel with panel capacitance to come the relaying energy, so reduced the expense of making.
[description of drawings]
Fig. 1 is the formation synoptic diagram of the surface discharge type of three electrodes interchange in the past plasma display discharge cell body;
Fig. 2 is the synoptic diagram in energy recycle device loop in the past;
Fig. 3 is the included switch switching procedure chart regularly of energy recycle device as shown in Figure 2;
Fig. 4 is the loop diagram of the energy recycle device of the 1st enforcement example of the present invention;
Fig. 5 is that the included switch of energy recycle device shown in Figure 4 opens and closes oscillogram regularly;
Fig. 6 is the switching of on-off element of T1 time shown in Figure 5 and the loop diagram of current return;
Fig. 7 is the switching of on-off element of T2 time shown in Figure 5 and the loop diagram of current return;
Fig. 8 is the switching of on-off element of T3 time shown in Figure 5 and the loop diagram of current return;
Fig. 9 is the switching of on-off element of T4 time shown in Figure 5 and the loop diagram of current return;
Figure 10 is the switching of on-off element of T6 time shown in Figure 5 and the loop diagram of current return;
Figure 11 is the switching of on-off element of T7 time shown in Figure 5 and the loop diagram of current return;
Figure 12 is the switching of on-off element of T8 time shown in Figure 5 and the loop diagram of current return;
Figure 13 is a loop diagram of implementing the energy recycle device of example according to the present invention the 2nd;
Figure 14 is the included switch switching oscillogram regularly of energy recycle device as shown in figure 13;
Figure 15 is the switching of on-off element of T1 time shown in Figure 14 and the loop diagram of current return;
Figure 16 is the switching of on-off element of T2 time shown in Figure 14 and the loop diagram of current return;
Figure 17 is the switching of on-off element of T3 time shown in Figure 14 and the loop diagram of current return;
Figure 18 is the switching of on-off element of T4 time shown in Figure 14 and the loop diagram of current return;
Figure 19 is the switching of on-off element of T6 time shown in Figure 14 and the loop diagram of current return;
Figure 20 is the switching of on-off element of T7 time shown in Figure 14 and the loop diagram of current return;
Figure 21 is the switching of on-off element of T8 time shown in Figure 14 and the loop diagram of current return;
[embodiment]
Below, we are described in detail the desirable example of implementing of the present invention with reference to Fig. 4 to Figure 21.
Fig. 4 is the synoptic diagram according to the energy recycle device of the invention process example.
With reference to Fig. 4, the of the present invention the 1st its formation of energy recycle device of implementing example comprises: with scan electrode Y and keep the panel capacitance that the static capacity equivalence that forms between the electrode Z shows; Charge into the energy charging device 30 of energy (voltage and/or electric current) to panel capacitance; Keep the energy holdout device of panel capacitance energy; The energy of energy charging device 30 is relayed to the energy relay 34 of panel capacitance.
30 settings of energy charging device link to each other with energy relay 34 with reference element.Identical therewith energy charging device 30 is for to the scan electrode of panel capacitance with keep voltage and charge into and keep voltage and dispose the 1st and the 2nd switch Q1, Q2 and the 1st and the 2nd capacitor C 1, C2.At this moment, the 1st and the 2nd switch is arranged between energy relay 34 and the reference element.The 1st electric capacity is arranged between energy relay and the reference element, and with the 1st switch in parallel setting.The 2nd electric capacity is arranged between energy relay 34 and the reference element, and with the 2nd switch in parallel setting.The 2nd switch will connected when voltage provides scan electrode to panel capacitance to keeping of charging into of the 1st electric capacity.The 1st switch will to the 2nd electric capacity charge into keep voltage provide to panel capacitance keep electrode the time connect.For preventing, and be provided with internal body diodes D1, D2 here, to the 1st and the 2nd switch generation reverse current.
Fig. 5 be switch shown in Figure 4 switching regularly and the timing diagram and the oscillogram of the output waveform of panel capacitance.
Here, T1 supposed before the time to charge into Vs voltage to the 1st electric capacity, and charged into Vs voltage to the 2nd electric capacity.Thereby operating process is described in detail.
T1 during the time the 1st and the 2nd switch be in on-state.The the 1st and the 2nd switch is as connecting, and same as shown in Figure 6ly forms current path via reference element, the 1st switch, the 1st inductor and the 2nd switch to reference element.Thus, provide substrate electromotive force (GND) to the 1st inductor.At this moment, will provide substrate electromotive force to be sent to the 2nd inductor to the 1st inductor.Here, the coil of the 1st inductor and the 2nd inductor twines by same direction, so the substrate electromotive force that transmits to the 2nd inductor provides the scan electrode Y to panel capacitance.Thus, in the time, the scan electrode of panel capacitance is kept the substrate electromotive force at T1.
T2 is in the time, and the 1st switch is in closing state, the 2nd switch keeping closing state.The 1st switch cuts out, and is same as shown in Figure 7 if the 2nd switch is in the state of connection, forms current path via the 1st electric capacity, the 1st inductor and the 2nd switch to reference element.Thus, the Vs voltage that charges into to the 1st electric capacity provides to the 1st inductor.At this moment, the Vs voltage that provides to the 1st inductor is sent to the 2nd inductor.Here because the coil of the 1st inductor and the 2nd inductor twines by same direction, thus to the 2nd inductor pass to Vs voltage provide to the scan electrode of panel capacitance.Thus, the scan electrode at T2 time wainscot electric capacity charges into Vs voltage.On the other hand, identical therewith T2 is set in the time to the panel capacitance scan electrode and charges into Vs voltage for this reason.
T3 is in the time, and the 3rd and the 4th switch is in the state of connection.If the 3rd and the 4th switch is connected, and is same as shown in Figure 8, via the scan electrode of keeping voltage source, the 3rd switch, panel capacitance, keep electrode and the 4th switch to reference element forms current path.By this current path, Vs voltage provides the scan electrode to panel capacitance.The Vs voltage that provides to the scan electrode of panel capacitance in time at T3 is maintained Vs voltage with the voltage of panel capacitance scan electrode, causes the stable discharge of keeping.
T4 in the time the 2nd switch be in the state of connection, if the 2nd switch connect, same as shown in Figure 9, form current path via the 2nd switch, the 1st inductor and the 1st capacitor to reference element.At this moment, the Vs voltage that charges into to the panel capacitance scan electrode is according to the mobile discharge of electric current.Here, the Vs voltage of discharge provides to the 2nd inductor.The Vs voltage that provides to the 2nd inductor is sent to the 1st inductor.Here, because the coil of the 1st inductor and the 2nd inductor twines by same direction, so the Vs voltage that transmits to the 1st inductor reclaims to the 1st capacitor according to current path.T5 keeps the substrate electromotive force in the time.
T6 in the time the 1st switch be in the state of connection.If the 1st switch connection is same as shown in Figure 10, form current path via the 2nd capacitor, the 1st inductor and the 1st switch to reference element.Thus, to the 2nd electric capacity charge into-Vs voltage provides to the 1st inductor, at this moment, to the 1st inductor provide-Vs voltage is sent to the 2nd inductor, here, the coil of the 1st inductor and the 2nd inductor twines by same direction, thus to the 2nd inductor transmit-Vs voltage provides to panel capacitance and keeps electrode.Thus, T6 is in the time, and the electrode of keeping of panel capacitance charges into Vs voltage.Here, to panel capacitance keep that electrode charges into-Vs voltage is to be the relative voltage of standard with the scan electrode.(in fact charging into Vs voltage) to keeping electrode on the other hand, identical therewith T6 time set is for till when panel capacitance is kept electrode and charged into Vs voltage.
T7 is in the time, the the 5th and the 6th switch is in the state of connection, if the 5th and the 6th switch connection is same as shown in Figure 11, keeps electrode, scan electrode and the 6th switch to reference element and form current path via keeping voltage source, the 5th switch, panel capacitance.By this current path ,-Vs voltage provides the electrode of keeping to panel capacitance.T7 in the time to panel capacitance keep that electrode provides-Vs voltage makes keeping electrode voltage and being maintained-Vs voltage of panel capacitance, causes the stable discharge of keeping simultaneously.Here, to panel capacitance keep that electrode provides-Vs voltage is to be the relative voltage (in fact providing Vs voltage to keeping electrode) of benchmark with the scan electrode.
T8 is in the time, and the 1st switch is in the state of connection, if the connection of the 1st switch is same as shown in Figure 12, forms current path via the 1st switch, the 1st inductor and the 2nd electric capacity to reference element.At this moment, to panel capacitance keep electrode charging-Vs voltage flows according to electric current and discharges.Here, discharge-Vs voltage provides to the 2nd inductor.To the 2nd inductor provide-Vs voltage is sent to the 1st inductor.Here, the coil of the 1st inductor and the 2nd inductor twines by same direction, thus to the 1st forwarder transmit-Vs voltage is recycled to the 2nd electric capacity according to current path.Here, from panel capacitance keep electrode be recycled to the 2nd electric capacity-Vs voltage is to be the relative voltage (in fact reclaiming Vs voltage to the 2nd electric capacity) of benchmark with the scan electrode.In fact, the set energy recycle device of the present invention in the both sides of panel capacitance is T1 to the T8 time repeatedly, provides the AC driving pulse to panel capacitance.
Identical therewith the 1st enforcement example energy recycle device of the present invention utilizes the lower transformer of expense to come the minimizing expense.
Figure 13 is a synoptic diagram of implementing the energy recycle device of example according to the present invention the 2nd.
Same as shown in Figure 13, the of the present invention the 2nd its formation of energy recycle device of implementing example comprises: with scan electrode Y and keep the panel capacitance CP that the static capacity equivalence that forms between the electrode Z shows; Charge into the energy charging device 130 of energy (voltage and/or electric current) to panel capacitance; Keep the energy holdout device 132 of panel capacitance energy; The energy of energy charging device 130 is relayed to the energy relay 134 of panel capacitance.
130 settings of energy charging device link to each other with energy relay 134 with reference element.Identical therewith energy charging device 130 is for to the scan electrode of panel capacitance with keep voltage and charge into and keep voltage and dispose the 11st and the 12nd switch Q11, Q12 and the 11st and the 12nd capacitor C 11, C12.At this moment, the 11st and the 12nd switch is arranged between energy relay 134 and the reference element.The 11st electric capacity is arranged between energy relay and the reference element, and with the 11st switch in parallel setting.The 12nd electric capacity is arranged between energy relay 134 and the reference element, and with the 12nd switch in parallel setting.The 12nd switch will connected when voltage provides scan electrode to panel capacitance to keeping of charging into of the 1st electric capacity.The 11st switch will to the 12nd electric capacity charge into keep voltage provide to panel capacitance keep electrode the time connect.For preventing, and be provided with internal body diodes D11, D12 here, to the 11st and the 12nd switch generation reverse current.
Figure 14 be switch shown in Figure 13 switching regularly and the timing diagram and the oscillogram of the output waveform of panel capacitance.
Here, T1 supposed before the time to charge into-Vs voltage to the 11st electric capacity, and charged into Vs voltage to the 12nd electric capacity.Thereby operating process is described in detail.
T1 during the time the 11st and the 12nd switch be in on-state.The the 11st and the 12nd switch is as connecting, and same as shown in Figure 15ly forms current path via reference element, the 2nd switch, the 11st inductor and the 11st switch to reference element.Thus, provide substrate electromotive force (GND) to the 11st inductor.At this moment, will provide substrate electromotive force to be sent to the 12nd inductor to the 11st inductor.Here, the coil of the 11st inductor and the 12nd inductor twines by opposite direction, so the substrate electromotive force that transmits to the 12nd inductor provides the scan electrode Y to panel capacitance.Thus, in the time, the scan electrode of panel capacitance is kept the substrate electromotive force at T1.
T2 is in the time, and the 11st switch is in the state of connection, the 12nd switch keeping closing state.If the 11st switch connection, the 12nd switch is in closing state, and is same as shown in Figure 16, forms current path via the 12nd electric capacity, the 11st inductor and the 11st switch to reference element.Thus, the Vs voltage that charges into to the 12nd electric capacity provides to the 11st inductor.At this moment, the Vs voltage that provides to the 11st inductor is sent to the 12nd inductor.Here because the coil of the 11st inductor and the 12nd inductor twines by opposite direction, thus to the 12nd inductor pass to Vs voltage provide to the scan electrode of panel capacitance.Thus, the scan electrode at T2 time wainscot electric capacity charges into Vs voltage.On the other hand, identical therewith T2 is set in the time to the panel capacitance scan electrode and charges into Vs voltage for this reason.
T3 is in the time, and the 13rd and the 14th switch is in the state of connection.If the 13rd and the 14th switch is connected, and is same as shown in Figure 17, via the scan electrode of keeping voltage source, the 13rd switch, panel capacitance, keep electrode and the 14th switch to reference element forms current path.By this current path, Vs voltage provides the scan electrode to panel capacitance.The Vs voltage that provides to the scan electrode of panel capacitance in time at T3 is maintained Vs voltage with the voltage of panel capacitance scan electrode, carries out the stable discharge of keeping.
T4 in the time the 11st switch be in the state of connection, if the 11st switch connect, same as shown in Figure 18, form current path via the 11st switch, the 11st inductor and the 12nd capacitor to reference element.At this moment, the Vs voltage that charges into to the panel capacitance scan electrode is according to the mobile discharge of electric current.Here, the Vs voltage of discharge provides to the 12nd inductor.The Vs voltage that provides to the 12nd inductor is sent to the 11st inductor.Here, because the coil of the 11st inductor and the 12nd inductor twines by opposite direction, so the Vs voltage that transmits to the 11st inductor reclaims to the 12nd capacitor according to current path.T5 keeps the substrate electromotive force in the time.
T6 in the time the 12nd switch be in the state of connection.If the 12nd switch connection is same as shown in Figure 19, form current path via the 11st capacitor, the 11st inductor and the 12nd switch to reference element.Thus, to the 11st electric capacity charge into-Vs voltage provides to the 11st inductor, at this moment, to the 11st inductor provide-Vs voltage is sent to the 12nd inductor, here, the coil of the 11st inductor and the 12nd inductor twines by opposite direction, thus to the 12nd inductor transmit-Vs voltage provides to panel capacitance and keeps electrode.Thus, T6 is in the time, the keeping electrode and charge into-Vs voltage of panel capacitance.Here, to panel capacitance keep that electrode charges into-Vs voltage is to be the relative voltage of standard with the scan electrode.(in fact charging into Vs voltage) to keeping electrode on the other hand, identical therewith T6 time set charges into for keeping electrode to panel capacitance-during Vs voltage till.
T7 is in the time, the the 15th and the 16th switch is in the state of connection, if the 15th and the 16th switch connection is same as shown in Figure 20, keeps electrode, scan electrode and the 16th switch to reference element and form current path via keeping voltage source, the 15th switch, panel capacitance.By this current path ,-Vs voltage provides the electrode of keeping to panel capacitance.T7 in the time to panel capacitance keep that electrode provides-Vs voltage makes keeping electrode voltage and being maintained-Vs voltage of panel capacitance, carries out the stable discharge of keeping simultaneously.Here, to panel capacitance keep that electrode provides-Vs voltage is to be the relative voltage (in fact providing Vs voltage to keeping electrode) of benchmark with the scan electrode.
T8 is in the time, and the 12nd switch is in the state of connection, if the connection of the 12nd switch is same as shown in Figure 21, forms current path via the 12nd switch, the 11st inductor and the 11st electric capacity to reference element.At this moment, to panel capacitance keep electrode charging-Vs voltage flows according to electric current and discharges.Here, discharge-Vs voltage provides to the 12nd inductor.To the 12nd inductor provide-Vs voltage is sent to the 11st inductor.Here, the coil of the 11st inductor and the 12nd inductor twines by opposite direction, thus to the 11st forwarder transmit-Vs voltage is recycled to the 11st electric capacity according to current path.Here, from panel capacitance keep electrode be recycled to the 11st electric capacity-Vs voltage is to be the relative voltage (in fact reclaiming Vs voltage to the 11st electric capacity) of benchmark with the scan electrode.In fact, the set energy recycle device of the present invention in the both sides of panel capacitance is T1 to the T8 time repeatedly, provides the AC driving pulse to panel capacitance.
Identical therewith the 2nd enforcement example energy recycle device of the present invention utilizes the lower transformer of expense to come the minimizing expense.
By above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.Therefore, the technical scope of this invention can not be confined to the detailed description on the detailed book; Must determine its technical scope according to the scope of patented claim.
Claims (8)
1. energy recycle device comprises:
At scan electrode and keep between the electrode capacitive load that forms of equal value;
To provide to capacitive load once more from the addressing voltage that capacitive load reclaims, and to the voltage charging device of capacitive load charging;
Link to each other with capacitive load, make stable discharging in keeping the capacitive load that voltage charges into, the voltage of keeping voltage holdout device is provided;
Be arranged between voltage charging device and the capacitive load, and link to each other with capacitive load with the voltage charging device, relaying is kept the voltage relay of voltage;
The formation of described voltage charging device comprises:
The 1st capacitor is connected between the end and reference element of voltage relay, reclaims and keeps voltage, and make the capacitive load charging;
The 2nd capacitor is connected between the other end and reference element of voltage relay, reclaims and keeps voltage, and make the capacitive load charging;
The 1st switch is connected between the end and reference element of voltage relay, and in parallel with the 1st capacitor, forms current path with the 1st inductor and the 2nd capacitor;
The 2nd switch is connected between the other end and reference element of voltage relay, and is in parallel with the 2nd capacitor, forms current path with the 1st inductor and the 1st capacitor.
2. energy recycle device as claimed in claim 1 is characterized in that,
Be equipped with inductor at the relay of voltage described in the energy recycle device, it is the magnetic inductor that is closed by magnetic knot by two coils.
3. energy recycle device as claimed in claim 2 is characterized in that,
Magnetic inductor is equipped with the 1st inductor that is connected with the voltage charging device in energy recycle device, 2nd inductor in parallel with capacitive load.
4. energy recycle device as claimed in claim 3 is characterized in that,
In the described energy recycle device, the coil of the 1st and the 2nd inductor is to twine by same direction.
5. energy recycle device as claimed in claim 4 is characterized in that,
Keep voltage after a side direction of the 1st inductor provides, keep, the scan electrode to capacitive load is provided to the 2nd inductor opposite side direction.
6. energy recycle device as claimed in claim 3 is characterized in that,
In described energy recycle device, the described the 1st and the 2nd inductor coil twines by opposite direction.
7. energy recycle device as claimed in claim 6 is characterized in that,
In described energy recycle device, keep voltage after the side direction to the 1st inductor provides, keep, the scan electrode to capacitive load is provided to a side direction of the 2nd inductor.
8. energy recycle device as claimed in claim 1 is characterized in that,
In energy recycle device, described voltage holdout device formation comprises:
The voltage source of keeping of keeping voltage is provided;
Be arranged on and keep between voltage source and the reference element, when keeping the 3rd switch and the 4th switch of connecting when voltage provides scan electrode to capacitive load;
Be arranged on and keep between voltage source and the reference element, keep voltage provide to capacitive load keep electrode the time the 5th and the 6th switch connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100674509A CN100395800C (en) | 2004-10-25 | 2004-10-25 | Energy reclaiming device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100674509A CN100395800C (en) | 2004-10-25 | 2004-10-25 | Energy reclaiming device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1766967A CN1766967A (en) | 2006-05-03 |
| CN100395800C true CN100395800C (en) | 2008-06-18 |
Family
ID=36742822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100674509A Expired - Fee Related CN100395800C (en) | 2004-10-25 | 2004-10-25 | Energy reclaiming device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100395800C (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5943030A (en) * | 1995-11-24 | 1999-08-24 | Nec Corporation | Display panel driving circuit |
| US6448950B1 (en) * | 2000-02-16 | 2002-09-10 | Ifire Technology Inc. | Energy efficient resonant switching electroluminescent display driver |
| WO2003073406A1 (en) * | 2002-02-25 | 2003-09-04 | Thomson Licensing S.A. | Means of powering and controlling a plasma panel using transformers |
| KR20040087117A (en) * | 2003-04-04 | 2004-10-13 | 엘지전자 주식회사 | Apparatus and Method of Energy Recovery |
-
2004
- 2004-10-25 CN CNB2004100674509A patent/CN100395800C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5943030A (en) * | 1995-11-24 | 1999-08-24 | Nec Corporation | Display panel driving circuit |
| US6448950B1 (en) * | 2000-02-16 | 2002-09-10 | Ifire Technology Inc. | Energy efficient resonant switching electroluminescent display driver |
| WO2003073406A1 (en) * | 2002-02-25 | 2003-09-04 | Thomson Licensing S.A. | Means of powering and controlling a plasma panel using transformers |
| KR20040087117A (en) * | 2003-04-04 | 2004-10-13 | 엘지전자 주식회사 | Apparatus and Method of Energy Recovery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1766967A (en) | 2006-05-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100492461C (en) | Plasma display and driving method thereof | |
| EP1550996B1 (en) | Energy recovery apparatus and method for a plasma display panel | |
| US20070109229A1 (en) | Energy recovery circuit and driving method thereof | |
| CN100533524C (en) | Energy recovery circuit and energy recovering method using the same | |
| KR100426190B1 (en) | Apparatus and mehtod of driving plasma display panel | |
| CN100395800C (en) | Energy reclaiming device and method | |
| CN100359549C (en) | Energy recovery apparatus and method for plasma display panel | |
| US7414620B2 (en) | Energy recovery apparatus and method of a plasma display panel | |
| CN101488314B (en) | Plasma display device | |
| US20050007310A1 (en) | Apparatus and method for energy recovery | |
| KR100503730B1 (en) | Apparatus and Method of Energy Recovery | |
| KR100505982B1 (en) | Apparatus and Method of Driving Plasma Display Panel | |
| CN100405428C (en) | Sustain pulse providing apparatus for plasma display device | |
| KR100487811B1 (en) | Method And Apparatus For Supplying Sustain Pulse In Plasma Display Panel | |
| KR100458585B1 (en) | A driving apparatus of plasma display panel and the method thereof | |
| KR100563461B1 (en) | Apparatus of Energy Recovery and Energy Recovering Method Using the same | |
| CN100405521C (en) | Electric power recovery apparatus for plasma display device | |
| KR100510189B1 (en) | Energy Recovery for Plasma Display Panel | |
| EP1640948A1 (en) | Apparatus and method for energy recovery in a plasma display panel | |
| KR100472357B1 (en) | Plasma display panel | |
| KR20040092618A (en) | Apparatus and Method of Energy Recovery | |
| US20080007489A1 (en) | Apparatus for driving plasma display panel | |
| KR100553936B1 (en) | Apparatus and Method of Energy Recovery | |
| KR100641735B1 (en) | Energy recovery apparatus and method of plasma display panel | |
| CN1766969A (en) | Energy recovery circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |