CN103235629A - Circuit structure capable of realizing automatic regulation and control of output power and corresponding method - Google Patents
Circuit structure capable of realizing automatic regulation and control of output power and corresponding method Download PDFInfo
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- CN103235629A CN103235629A CN2012100915800A CN201210091580A CN103235629A CN 103235629 A CN103235629 A CN 103235629A CN 2012100915800 A CN2012100915800 A CN 2012100915800A CN 201210091580 A CN201210091580 A CN 201210091580A CN 103235629 A CN103235629 A CN 103235629A
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Abstract
The invention relates to a circuit structure capable of realizing automatic regulation and control of output power, which comprises a constant-voltage generating module, an integration comparison module, an analog driver module, a photoelectric detection module and a second order feedback circuit module, wherein the second order feedback circuit module comprises an analog quantity feedback circuit and a digital quantity feedback circuit which are connected between the output end of the photoelectric detection module and the negative input end of the integration comparison module. The invention also relates to a method capable of realizing automatic regulation and control of output power, which comprises the following steps: firstly, outputting adjusting voltage signals to the integration comparison module by the digital quantity feedback circuit; and when a real power exceeds a target power, locking the adjusting voltage signals by the digital quantity feedback circuit, and then outputting the adjusting voltage signals by the analog quantity feedback circuit. According to the invention, not only is the advantage of high feedback control speed of the digital quantity utilized, but also the advantage of high feedback control precision of the analog quantity is considered, so that the output power can enter a stable state quickly. The circuit structure is simple, is low in cost, and has a simple and convenient application method, thereby having a wider application range.
Description
Technical field
The present invention relates to the circuit structure technical field, particularly output power controlling circuit and method and technology field refer to that specifically a kind of realization output power regulates control circuit structure and method thereof automatically.
Background technology
Usually, in the association area of power control, in order to guarantee the constant of output power, the system designer can carry out power to it by negative feedback loop as shown in Figure 1 and control automatically.That is to say, by detecting output power, then detected value and setting value are compared, feed back to control circuit by its error minus output power is adjusted.For common negative-feedback circuit, generally can pass through a single order feedback loop, adjust by the detection feedback control mechanism of pure simulation or pure digi-tal.But can make that by simple analog feedback control feedback speed is slower, the dynamic feedback relative narrower; And can fast system be fed back fast really by the pure digi-tal FEEDBACK CONTROL, but because precision reasons such as digital quantization, cause its feedback with control accuracy certain error to be arranged, power is controlled under the higher occasion of degree of stability at some, digital feedback control can't be satisfied its degree of stability and accuracy requirement.
And then, if system is in operational process, need change on request output power, then according to the structure of common feedback control circuit, can cause setting value and the detected value of comparison loop all to need to change, if the feedback control system of this moment is carried out rapid adjustment, then certainly will cause the vibration of feedback control loop output, thereby output power is fluctuateed up and down, be unfavorable for operate as normal and the stable regulation of equipment.And if feedback control system is adjusted at a slow speed, it is slack-off then to cause adjusting paces again, and system needs just can enter steady state (SS) for a long time.Therefore traditional negative feedback control method is not suitable for yet and need makes quick-adjustsing application scenarios to output power.
For the main-apparatus protection switched system that needs cold start-up, after main frame broke down, standby host need (in 1s) start in the short as far as possible time fast, recovers communication, and guaranteed that output power is stable.And for the laser instrument of high-power output, because electric current is bigger, moment causes the output of power supply instantaneous large-current with output power lifting meeting, and is quite high to power requirement on the one hand, also easily laser instrument or power supply caused than macrolesion on the other hand.Usually the high-power of output need not stop to adjust by feedback, makes output approach setting value as much as possible, thereby reaches the purpose of stable output.
For at DWDM (Dense Wavelength Division Multiplexing, dense wave division multipurpose) in the communication system, when certain wavelength signals is wherein interrupted suddenly, make when whole output power descends suddenly, in order to guarantee the normal of communication facilities, system needs output power to be adjusted on original setting value rapidly usually, by traditional feedback, cause adjusting overlong time, this can cause total system to take for communication disruption, adjustment can cause bigger output-power fluctuation, and this will influence degree of stability and the bit error rate of subordinate's receiving system.
Summary of the invention
The objective of the invention is to have overcome above-mentioned shortcoming of the prior art, a kind of FEEDBACK CONTROL speed faster that has is provided, has simultaneously higher FEEDBACK CONTROL precision again, thereby under the situation of adjusting output power, can make output power enter steady state (SS) rapidly, and simple in structure, with low cost, range of application realizes that comparatively widely output power regulates control circuit structure and method thereof automatically.
In order to realize above-mentioned purpose, output power of the present invention is regulated the control circuit structure automatically and is had following formation:
This circuit structure comprises the constant voltage generation module, the integration comparison module, the analog-driven module, Photoelectric Detection module and second order feedback circuit module, the output terminal of described constant voltage generation module connects the positive input terminal of described integration comparison module, the output terminal of described integration comparison module connects described analog-driven module, described Photoelectric Detection module connects described analog-driven module, the output terminal of described Photoelectric Detection module connects the input end of described second order feedback circuit module, the output terminal of described second order feedback circuit module connects the input end of described integration comparison module, described second order feedback circuit module comprises analog quantity feedback circuit and digital quantity feedback circuit, and described analog quantity feedback circuit and digital quantity feedback circuit all are connected between the negative input end of the output terminal of described Photoelectric Detection module and integration comparison module.
This realization output power is regulated in the circuit structure of control automatically, and described second order feedback circuit module also comprises the control module that adds up; Described analog quantity feedback circuit comprises the analog quantity automatic regulating module, the input end of described analog quantity automatic regulating module connects the output terminal of described Photoelectric Detection module, and the output terminal of described analog quantity automatic regulating module connects the input end of the described control module that adds up; Described digital quantity feedback circuit comprises CPU control module and the digital quantity automatic regulating module that is linked in sequence, the input end of described CPU control module connects the output terminal of described Photoelectric Detection module, the output terminal of described digital quantity automatic regulating module connects the input end of the described control module that adds up, and the output terminal of the described control module that adds up connects the negative input end of described integration comparison module.
This realization output power is regulated in the circuit structure of control automatically, and described integration comparison module is that integrating circuit is amplified in computing.
This realization output power is regulated in the circuit structure of control automatically, described Photoelectric Detection module comprises interconnective photodetector and trsanscondutance amplifier, described photodetector connects described analog-driven module, and the output terminal of described trsanscondutance amplifier connects the input end of described second order feedback circuit module.
The present invention also provides a kind of and realizes the method that output power is regulated control automatically based on described circuit structure, and this method may further comprise the steps:
(1) described second order feedback circuit module is operated according to the user, adjusts default target power;
(2) the digital quantity feedback circuit in the described second order feedback circuit module is determined to adjust direction and is adjusted the stepping amount according to the current real power that obtains from described Photoelectric Detection module and described target power;
(3) described digital quantity feedback circuit is adjusted voltage signal according to described adjustment direction and adjustment stepping amount to described integration comparison module output;
When (4) the current real power that obtains when described Photoelectric Detection module exceeds described target power, after described digital quantity feedback circuit is oppositely adjusted and described adjustment stepping amount reduced to minimum value, lock described vector product and divide relatively module output to adjust voltage signal;
(5) poor according to the current real power that obtains from described Photoelectric Detection module and described target power of described analog quantity feedback circuit adjusted voltage signal to described integration comparison module output.
This output power is regulated in the method for control automatically, and described second order feedback circuit module also comprises the control module that adds up; Described analog quantity feedback circuit comprises the analog quantity automatic regulating module, the input end of described analog quantity automatic regulating module connects the output terminal of described Photoelectric Detection module, and the output terminal of described analog quantity automatic regulating module connects the input end of the described control module that adds up; Described digital quantity feedback circuit comprises CPU control module and the digital quantity automatic regulating module that is linked in sequence, the input end of described CPU control module connects the output terminal of described Photoelectric Detection module, the output terminal of described digital quantity automatic regulating module connects the input end of the described control module that adds up, the output terminal of the described control module that adds up connects the negative input end of described integration comparison module, and described step (2) is specially: described CPU control module is determined to adjust direction and is adjusted the stepping amount according to the difference of the current real power that obtains from described Photoelectric Detection module and described target power.
This output power is regulated in the method for control automatically, and described step (3) specifically may further comprise the steps:
(31) described CPU control module calculates increment signal according to described adjustment direction and adjustment stepping amount;
(32) described CPU control module is controlled described digital quantity automatic regulating module and is exported described increment signal to described integration comparison module.
This output power is regulated in the method for control automatically, and described step (4) specifically may further comprise the steps:
(41) described CPU control module judges that the current real power that obtains from described Photoelectric Detection module exceeds described target power;
(42) described CPU control module is carried out described adjustment direction setting to opposite with former direction;
When (43) described CPU control module detects minimum that difference between described current real power and described target power is less than or equal to this CPU control module and adjusts the stepping amount, lock and describedly export described increment signal to described integration comparison module.
Adopted the output power of this invention to regulate the control circuit structure automatically, because it comprises constant voltage generation module, integration comparison module, analog-driven module, Photoelectric Detection module and second order feedback circuit module, and described second order feedback circuit module comprises analog quantity feedback circuit and digital quantity feedback circuit, and described analog quantity feedback circuit and digital quantity feedback circuit all are connected between the negative input end of the output terminal of described Photoelectric Detection module and integration comparison module; Thereby in the method for automatic adjusting control output power, can at first be exported to described integration comparison module with adjustment stepping amount according to the adjustment direction by described digital quantity feedback circuit and adjust voltage signal; And when the current real power of described Photoelectric Detection module acquisition exceeds described target power, the digital quantity feedback circuit is oppositely adjusted and described adjustment stepping amount is reduced to minimum value, and after locking described vector product branch comparison module output adjustment voltage signal; By described analog quantity feedback circuit poor according to current real power and target power, adjust voltage signal to described integration comparison module output again.Thereby guaranteed by this circuit structure, can utilize digital quantity feedback circuit FEEDBACK CONTROL advantage rapidly, can take into account the high advantage of analog quantity FEEDBACK CONTROL precision again, avoided in the prior art the violent precision of digital feedback control vibration relatively poor, and the slow-footed defective of simulation control response, under the situation of adjusting the output power of setting, can make output power enter steady state (SS) rapidly, and it is simple in structure that output power of the present invention is regulated control circuit automatically, with low cost, its application process is easy, and range of application is also comparatively extensive.
Description of drawings
Fig. 1 is the electrical block diagram that output power of the prior art is regulated control circuit.
Fig. 2 regulates the structural representation of the circuit structure of control automatically for realization output power of the present invention.
Fig. 3 regulates the flow chart of steps of the method for control automatically for realization output power of the present invention.
Fig. 4 regulates the circuit structure circuit diagram in actual applications of control automatically for realization output power of the present invention.
Fig. 5 regulates the method output power method of adjustment synoptic diagram in actual applications of control automatically for realization output power of the present invention.
Embodiment
In order more to be expressly understood technology contents of the present invention, describe in detail especially exemplified by following examples.
See also shown in Figure 2ly, regulate the structural representation of the circuit structure of control for realization output power of the present invention automatically.
In one embodiment, the circuit structure that this realization output power is regulated control automatically comprises the constant voltage generation module, the integration comparison module, the analog-driven module, Photoelectric Detection module and second order feedback circuit module, the output terminal of described constant voltage generation module connects the positive input terminal of described integration comparison module, the output terminal of described integration comparison module connects described analog-driven module, described Photoelectric Detection module connects described analog-driven module, the output terminal of described Photoelectric Detection module connects the input end of described second order feedback circuit module, the output terminal of described second order feedback circuit module connects the input end of described integration comparison module, described second order feedback circuit module comprises analog quantity feedback circuit and digital quantity feedback circuit, and described analog quantity feedback circuit and digital quantity feedback circuit all are connected between the negative input end of the output terminal of described Photoelectric Detection module and integration comparison module.Wherein, described integration comparison module can amplify integrating circuit for computing.Described Photoelectric Detection module comprises interconnective photodetector and trsanscondutance amplifier, and described photodetector connects described analog-driven module, and the output terminal of described trsanscondutance amplifier connects the input end of described second order feedback circuit module.
Realize the method that output power is regulated control automatically based on the described circuit structure of this embodiment, as shown in Figure 3, may further comprise the steps:
(1) described second order feedback circuit module is operated according to the user, adjusts default target power;
(2) the digital quantity feedback circuit in the described second order feedback circuit module is determined to adjust direction and is adjusted the stepping amount according to the current real power that obtains from described Photoelectric Detection module and described target power;
(3) described digital quantity feedback circuit is adjusted voltage signal according to described adjustment direction and adjustment stepping amount to described integration comparison module output;
When (4) the current real power that obtains when described Photoelectric Detection module exceeds described target power, after described digital quantity feedback circuit is oppositely adjusted and described adjustment stepping amount reduced to minimum value, lock described vector product and divide relatively module output to adjust voltage signal;
(5) poor according to the current real power that obtains from described Photoelectric Detection module and described target power of described analog quantity feedback circuit adjusted voltage signal to described integration comparison module output.
In a kind of more preferably embodiment, described second order feedback circuit module also comprises the control module that adds up; Described analog quantity feedback circuit comprises the analog quantity automatic regulating module, the input end of described analog quantity automatic regulating module connects the output terminal of described Photoelectric Detection module, and the output terminal of described analog quantity automatic regulating module connects the input end of the described control module that adds up; Described digital quantity feedback circuit comprises CPU control module and the digital quantity automatic regulating module that is linked in sequence, the input end of described CPU control module connects the output terminal of described Photoelectric Detection module, the output terminal of described digital quantity automatic regulating module connects the input end of the described control module that adds up, and the output terminal of the described control module that adds up connects the negative input end of described integration comparison module.
Based on this more preferably the described circuit structure of embodiment realize that output power regulates in the method for control automatically, described step (2) is specially: described CPU control module is determined to adjust direction and is adjusted the stepping amount according to the difference of the current real power that obtains from described Photoelectric Detection module and described target power.
In preferred embodiment, described step (3) specifically may further comprise the steps:
(31) described CPU control module calculates increment signal according to described adjustment direction and adjustment stepping amount;
(32) described CPU control module is controlled described digital quantity automatic regulating module and is exported described increment signal to described integration comparison module.
And described step (4) specifically may further comprise the steps:
(41) described CPU control module judges that the current real power that obtains from described Photoelectric Detection module exceeds described target power;
(42) described CPU control module is carried out described adjustment direction setting to opposite with former direction;
When (43) described CPU control module detects minimum that difference between described current real power and described target power is less than or equal to this CPU control module and adjusts the stepping amount, lock and describedly export described increment signal to described integration comparison module.
In actual applications, output power of the present invention is regulated the circuit structure of control automatically, as Fig. 2 and shown in Figure 4, comprise a constant voltage generation module, the control module that adds up, an integration comparison module, numeral is adjusted automatically, a CPU control, a Photoelectric Detection module, a simulation adjusting module and an analog-driven module.
As shown in Figure 4, preferred embodiment of the present invention in, the Photoelectric Detection module changes the light signal of the output power that detects into voltage signal sends into digital automatic regulating module and simulation adjusting module, these two modules are according to the output of being correlated with respectively of this feedback quantity, after superposeing through the control module that adds up, the voltage output signal of two adjusting modules sends into the negative terminal of comparison control module, relatively control module is by comparing output and the constant voltage signal of superposed signal, its difference is through after the integration, the drive voltage signal of the laser instrument of the stable output of generation entire circuit, send into the analog-driven module, thereby produce stable power output.
The constant voltage generation module produces circuit or prover pipe by constant voltage, fixes to produce a constant voltage signal, sends into the anode of integration comparison module; The voltage signal of this end remains constant in the entire circuit course of work, makes the comparator circuit of back only change with the fluctuation of the other end.
The integration comparison module is by an amplifier integrating circuit, the integration of finishing comparison module both end voltage signal difference adds up, because the voltage amplitude of its anode is constant forever, and the input impedance approach infinity of amplifier, the input that makes the variation of output control signal of whole integrating circuit only rely on negative terminal changes, thereby has prevented that positive and negative two ends from changing the vibration of the output voltage signal that causes simultaneously.
The Photoelectric Detection module is mainly finished the detection of output power signal, and it generally finishes detection and the current/voltage conversion of optical power signals by PD (photodetector) and mutual conductance amplifying circuit.The adjustment that CPU module and analog control circuit module are used for power is sent in the output of this change-over circuit.
The output of Photoelectric Detection module can directly be connected with digital adjusting module to be carried out arithmetic and adds up, detected photo-signal is integrated circuit and feeds back to the power drive part at this moment, if this moment, power did not reach setting value, then the integrating network feeds back to driving circuit, raises output power automatically; The increase of output power feeds back to the integrating network again by the Photoelectric Detection module, makes its output reach corresponding setting value.
In application process of the present invention, after setting certain target power, digital adjusting module can relatively draw it and adjust direction and adjust stepping amount Δ 1 according to the performance number of the current actual detected of system.As shown in Figure 5, progressively adjust the output valve of its DAC (digital-to-analog conversion), the output of this digital quantity DAC is converted into voltage signal, feeds back to driving circuit in order to adjust output power by comparison module; When digital DAC output valve caused system's output power to be higher than or is lower than setting value, digital adjusting module began to adjust in the other direction, and will adjust the stepping amount and be reduced to minimum value; When the output power after the adjustment is lower than or is higher than setting value, digital display circuit locking DAC output at this moment, and remain unchanged.
After digital adjusting module output locking, the trickle power adjustment of output power is finished from motion tracking by analog feedback circuit.
Consequent effect is exactly, and on the one hand, the adjustment information of digital adjusting module can be very fast sends into comparator circuit, finishes the quick response of entire circuit; Simultaneously, the adjustment information of simulation adjusting module also can be integrated comparator circuit stably and receive, and makes output power stable.This accumulator module has been finished the second order loop control of whole feedback circuit.
The analog-driven module is carried in the two ends of laser instrument or other power-ourput device with the voltage signal of receiving, finishes drive voltage signal to the conversion of power signal.
The CPU control module is on the one hand by detecting the output of optical-electric module, the difference of the performance number of the output power value by compare facilities and the expectation of the system of system, automatically calculate and produce a rational output increment signal, the minimum accuracy value that if both differences have approached or can produce less than cpu control circuit, the CPU control module will lock increment at this moment and export.
When the CPU control module is in steady state (SS), and locking increment when output, if system's demanded power output changes or the detected output power of this moment is adjusted precision because of the minimum that other reason causes fluctuation to surpass CPU, the CPU control module is readjusted the output increment signal; For guaranteeing that output power big fluctuation can not occur, each adjusting range of CPU should be too not big usually.
Digital automatic regulating module passes through to receive the increment output signal of CPU control module, and is converted into voltage signal, and by accumulator module and final bias voltage as whole integration comparison module, thereby the digital feedback of finishing total system is fast controlled.
The adjustment by a small margin that the difference that the simulation automatic regulating module is finished actual expectation power by output and the integral feedback circuit of optical-electric module continues, adjust signal and send into the integration comparison module by summation circuit, adjustment component as continuing in the entire circuit course of work guarantees the mobile equilibrium of whole feedback system.
Adopted the output power of this invention to regulate the control circuit structure automatically, because it comprises constant voltage generation module, integration comparison module, analog-driven module, Photoelectric Detection module and second order feedback circuit module, and described second order feedback circuit module comprises analog quantity feedback circuit and digital quantity feedback circuit, and described analog quantity feedback circuit and digital quantity feedback circuit all are connected between the negative input end of the output terminal of described Photoelectric Detection module and integration comparison module; Thereby in the method for automatic adjusting control output power, can at first be exported to described integration comparison module with adjustment stepping amount according to the adjustment direction by described digital quantity feedback circuit and adjust voltage signal; And when the current real power of described Photoelectric Detection module acquisition exceeds described target power, the digital quantity feedback circuit is oppositely adjusted and described adjustment stepping amount is reduced to minimum value, and after locking described vector product branch comparison module output adjustment voltage signal; By described analog quantity feedback circuit poor according to current real power and target power, adjust voltage signal to described integration comparison module output again.Thereby guaranteed by this circuit structure, can utilize digital quantity feedback circuit FEEDBACK CONTROL advantage rapidly, can take into account the high advantage of analog quantity FEEDBACK CONTROL precision again, avoided in the prior art the violent precision of digital feedback control vibration relatively poor, and the slow-footed defective of simulation control response, under the situation of adjusting the output power of setting, can make output power enter steady state (SS) rapidly, and it is simple in structure that output power of the present invention is regulated control circuit automatically, with low cost, its application process is easy, and range of application is also comparatively extensive.
In this instructions, the present invention is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, instructions and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (8)
1. realize that output power regulates the circuit structure of control automatically for one kind, it is characterized in that, described circuit structure comprises the constant voltage generation module, the integration comparison module, the analog-driven module, Photoelectric Detection module and second order feedback circuit module, the output terminal of described constant voltage generation module connects the positive input terminal of described integration comparison module, the output terminal of described integration comparison module connects described analog-driven module, described Photoelectric Detection module connects described analog-driven module, the output terminal of described Photoelectric Detection module connects the input end of described second order feedback circuit module, the output terminal of described second order feedback circuit module connects the input end of described integration comparison module, described second order feedback circuit module comprises analog quantity feedback circuit and digital quantity feedback circuit, and described analog quantity feedback circuit and digital quantity feedback circuit all are connected between the negative input end of the output terminal of described Photoelectric Detection module and integration comparison module.
2. realization output power according to claim 1 is regulated the circuit structure of control automatically, it is characterized in that, described second order feedback circuit module also comprises the control module that adds up; Described analog quantity feedback circuit comprises the analog quantity automatic regulating module, the input end of described analog quantity automatic regulating module connects the output terminal of described Photoelectric Detection module, and the output terminal of described analog quantity automatic regulating module connects the input end of the described control module that adds up; Described digital quantity feedback circuit comprises CPU control module and the digital quantity automatic regulating module that is linked in sequence, the input end of described CPU control module connects the output terminal of described Photoelectric Detection module, the output terminal of described digital quantity automatic regulating module connects the input end of the described control module that adds up, and the output terminal of the described control module that adds up connects the negative input end of described integration comparison module.
3. realization output power according to claim 1 and 2 is regulated the circuit structure of control automatically, it is characterized in that, described integration comparison module is that integrating circuit is amplified in computing.
4. realization output power according to claim 1 and 2 is regulated the circuit structure of control automatically, it is characterized in that, described Photoelectric Detection module comprises interconnective photodetector and trsanscondutance amplifier, described photodetector connects described analog-driven module, and the output terminal of described trsanscondutance amplifier connects the input end of described second order feedback circuit module.
5. realize the method that output power is regulated control automatically based on the described circuit structure of claim 1 for one kind, it is characterized in that described method may further comprise the steps:
(1) described second order feedback circuit module is operated according to the user, adjusts default target power;
(2) the digital quantity feedback circuit in the described second order feedback circuit module is determined to adjust direction and is adjusted the stepping amount according to the current real power that obtains from described Photoelectric Detection module and described target power;
(3) described digital quantity feedback circuit is adjusted voltage signal according to described adjustment direction and adjustment stepping amount to described integration comparison module output;
When (4) the current real power that obtains when described Photoelectric Detection module exceeds described target power, after described digital quantity feedback circuit is oppositely adjusted and described adjustment stepping amount reduced to minimum value, lock described vector product and divide relatively module output to adjust voltage signal;
(5) poor according to the current real power that obtains from described Photoelectric Detection module and described target power of described analog quantity feedback circuit adjusted voltage signal to described integration comparison module output.
6. output power according to claim 5 is regulated the method for control automatically, it is characterized in that, described second order feedback circuit module also comprises the control module that adds up; Described analog quantity feedback circuit comprises the analog quantity automatic regulating module, the input end of described analog quantity automatic regulating module connects the output terminal of described Photoelectric Detection module, and the output terminal of described analog quantity automatic regulating module connects the input end of the described control module that adds up; Described digital quantity feedback circuit comprises CPU control module and the digital quantity automatic regulating module that is linked in sequence, the input end of described CPU control module connects the output terminal of described Photoelectric Detection module, the output terminal of described digital quantity automatic regulating module connects the input end of the described control module that adds up, the output terminal of the described control module that adds up connects the negative input end of described integration comparison module, and described step (2) is specially:
Described CPU control module is determined to adjust direction and is adjusted the stepping amount according to the difference of the current real power that obtains from described Photoelectric Detection module and described target power.
7. output power according to claim 6 is regulated the method for control automatically, it is characterized in that, described step (3) specifically may further comprise the steps:
(31) described CPU control module calculates increment signal according to described adjustment direction and adjustment stepping amount;
(32) described CPU control module is controlled described digital quantity automatic regulating module and is exported described increment signal to described integration comparison module.
8. output power according to claim 6 is regulated the method for control automatically, it is characterized in that, described step (4) specifically may further comprise the steps:
(41) described CPU control module judges that the current real power that obtains from described Photoelectric Detection module exceeds described target power;
(42) described CPU control module is carried out described adjustment direction setting to opposite with former direction;
When (43) described CPU control module detects minimum that difference between described current real power and described target power is less than or equal to this CPU control module and adjusts the stepping amount, lock and describedly export described increment signal to described integration comparison module.
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| CN106027224A (en) * | 2016-08-01 | 2016-10-12 | 西南大学 | Secure communication system based on photoelectric feedback ring laser |
| CN113310571A (en) * | 2021-04-16 | 2021-08-27 | 湖南大科激光有限公司 | Feedback system of laser output power |
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| CN202059611U (en) * | 2010-12-23 | 2011-11-30 | 佛山市顺德区瑞德电子实业有限公司 | Power rapid adjusting device of induction cooker circuit board |
| CN202615260U (en) * | 2012-03-30 | 2012-12-19 | 上海拜安实业有限公司 | Circuit structure capable of enabling output power to be adjusted and controlled automatically |
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| CN105356214A (en) * | 2015-12-16 | 2016-02-24 | 天津津芯微电子科技有限公司 | Laser energy control device and method |
| CN105356214B (en) * | 2015-12-16 | 2019-02-05 | 天津津芯微电子科技有限公司 | A kind of laser energy attenuation device and method |
| CN106027224A (en) * | 2016-08-01 | 2016-10-12 | 西南大学 | Secure communication system based on photoelectric feedback ring laser |
| CN113310571A (en) * | 2021-04-16 | 2021-08-27 | 湖南大科激光有限公司 | Feedback system of laser output power |
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Application publication date: 20130807 Assignee: Shanghai Chiyan Optical Fiber Communication Technology Co.,Ltd. Assignor: SHANGHAI B&A INDUSTRIAL Co.,Ltd. Contract record no.: X2022980013882 Denomination of invention: Control circuit structure and method for realizing automatic adjustment of output power Granted publication date: 20141217 License type: Common License Record date: 20220901 |
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