CN117613667B - Laser pulse diode driver power supply control circuit - Google Patents
Laser pulse diode driver power supply control circuit Download PDFInfo
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- CN117613667B CN117613667B CN202410091623.8A CN202410091623A CN117613667B CN 117613667 B CN117613667 B CN 117613667B CN 202410091623 A CN202410091623 A CN 202410091623A CN 117613667 B CN117613667 B CN 117613667B
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- 230000002457 bidirectional effect Effects 0.000 claims abstract description 38
- 238000004146 energy storage Methods 0.000 claims abstract description 36
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 230000001105 regulatory effect Effects 0.000 claims description 61
- 239000003990 capacitor Substances 0.000 claims description 31
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 229910052710 silicon Inorganic materials 0.000 claims description 14
- 239000010703 silicon Substances 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 12
- 230000009467 reduction Effects 0.000 claims description 9
- 238000005070 sampling Methods 0.000 claims description 8
- 230000001276 controlling effect Effects 0.000 claims description 7
- 238000002955 isolation Methods 0.000 claims description 3
- 230000003750 conditioning effect Effects 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 1
- 101100365087 Arabidopsis thaliana SCRA gene Proteins 0.000 description 8
- 101150105073 SCR1 gene Proteins 0.000 description 8
- 101100134054 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) NTG1 gene Proteins 0.000 description 8
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- 230000001131 transforming effect Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
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- 229910052744 lithium Inorganic materials 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/04—Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
- H01S5/042—Electrical excitation ; Circuits therefor
- H01S5/0428—Electrical excitation ; Circuits therefor for applying pulses to the laser
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
- H02M1/088—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/01—Resonant DC/DC converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
- H02M3/33576—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
- H02M3/33584—Bidirectional converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Semiconductor Lasers (AREA)
Abstract
The invention discloses a power supply control circuit of a laser pulse diode driver, which relates to the technical field of driving power supplies and comprises a power supply module, a power supply module and a power supply module, wherein the power supply module is used for generating square wave electric energy; the resonance transformation module is used for carrying out tuning, transformation, rectification and filtering treatment on the square wave electric energy and providing pulse electric energy for the laser diode driving module; the laser diode driving module is used for adjusting pulse laser emitted by the laser diode; the voltage and current detection module is used for detecting voltage and current; the voltage comparison module is used for carrying out low-voltage detection and high-voltage detection on the pulse electric energy; the intelligent control module is used for signal receiving and module control; the energy storage control module is used for storing energy and discharging; the bidirectional converter module is used for inversion and rectification; and the power supply adjusting module is used for providing compensation electric energy and partial pressure for the resonance transformation module. The laser pulse diode driver power supply control circuit can provide required stable pulse electric energy, avoid frequent power change and improve working efficiency.
Description
Technical Field
The invention relates to the technical field of driving power supplies, in particular to a power supply control circuit of a laser pulse diode driver.
Background
The laser pulse diode is powered by a pulse power supply and driven by a related laser pulse diode driver so as to emit pulse laser, most of the existing pulse power supplies are provided by a square wave generator matched with a resonant network, a transformer and a rectifying filter, and then the related laser pulse diode driver drives the laser pulse diode to work by a pulse signal with a low duty ratio.
Disclosure of Invention
The embodiment of the invention provides a power supply control circuit of a laser pulse diode driver, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a laser pulse diode driver power control circuit comprising: the device comprises a power supply module, a resonance transformation module, an intelligent control module, a laser diode driving module, a voltage and current detection module, a voltage comparison module, an energy storage control module, a bidirectional converter module and a power supply regulation module;
the power supply module is connected with the intelligent control module and used for accessing direct-current electric energy, receiving a first pulse signal output by the intelligent control module, carrying out waveform conversion on the direct-current power supply and outputting square-wave electric energy;
the resonance transformation module is connected with the power supply module and the power supply regulation module, and is used for carrying out tuning, transformation, rectification and filtering treatment on square wave electric energy and outputting pulse electric energy, receiving compensation electric energy output by the power supply regulation module and regulating a pulse electric energy value, and transmitting the transformed electric energy to the power supply regulation module and regulating the pulse electric energy value;
the laser diode driving module is connected with the resonance transformation module and the intelligent control module, and is used for receiving the pulse electric energy output by the resonance transformation module and the second pulse signal output by the intelligent control module, improving the driving capability of the second pulse signal and adjusting pulse laser emitted by the laser diode;
the voltage and current detection module is connected with the laser diode driving module and is used for voltage sampling of the pulse electric energy and outputting a voltage signal, and current sampling of the laser diode driving module and outputting a current signal;
the voltage comparison module is connected with the voltage and current detection module and is used for setting a high-voltage threshold value and a low-voltage threshold value, outputting a first control signal when the voltage signal is lower than the low-voltage threshold value, and outputting a second control signal when the voltage signal is higher than the high-voltage threshold value;
the intelligent control module is connected with the voltage comparison module, the voltage and current detection module, the bidirectional current transformation module and the power supply regulation module, and is used for outputting a first pulse signal, receiving the voltage signal and the current signal, respectively regulating the duty ratio of the first pulse signal and the duty ratio of the second pulse signal, outputting a third pulse signal, controlling the inversion regulation of the bidirectional current transformation module, outputting a fourth pulse signal, controlling the transmission voltage of the power supply regulation module, receiving the first control signal and the second control signal, respectively regulating the duty ratio of the third pulse signal and the fourth pulse signal, and outputting a fifth pulse signal;
the energy storage control module is connected with the intelligent control module, the bidirectional current conversion module and the power supply module, and is used for receiving a fifth pulse signal, carrying out voltage reduction treatment on the direct current electric energy, storing the electric energy subjected to voltage reduction and the electric energy provided by the bidirectional current conversion module, and providing electric energy for the bidirectional current conversion module;
the bidirectional converter module is connected with the power supply adjusting module and is used for receiving a third pulse signal, performing inversion adjustment on the electric energy provided by the energy storage control module, rectifying the electric energy transmitted by the power supply adjusting module and providing electric energy for the energy storage control module;
the power supply adjusting module is connected with the voltage comparing module, is used for receiving the first control signal and the second control signal and performing electric energy transmission control, is used for performing isolation transmission on electric energy output after inversion adjustment of the bidirectional variable current module and outputting compensation electric energy, is used for receiving a fifth pulse signal and adjusting the electric energy after transformation of the resonant variable current module, and is used for transmitting the adjusted electric energy to the bidirectional variable current module.
As still further aspects of the invention: the power module comprises a power interface, a first power tube and a second power tube; the intelligent control module comprises a first controller;
preferably, the first end of the power interface is connected with the drain electrode of the first power tube, the source electrode of the first power tube is connected with the drain electrode of the second power tube, the source electrode of the second power tube and the second end of the power interface are grounded, and the grid electrode of the first power tube and the grid electrode of the second power tube are respectively connected with the IO1 end and the IO2 end of the first controller.
As still further aspects of the invention: the resonance transformation module comprises a first capacitor, a first inductor, a second inductor, a first transformer, a first diode and a second diode; the voltage and current detection module comprises a first resistor and a second resistor;
preferably, one end of the first inductor is connected with the source electrode of the first power tube through the first capacitor, the other end of the first inductor is connected with one end of the second inductor and the first end of the primary side of the first transformer, the other end of the second inductor and the second end of the primary side of the first transformer are both connected with the second end of the power interface, the first end, the second end and the third end of the secondary side of the first transformer are respectively connected with the anode of the first diode, the anode of the second diode and the power regulating module, the cathode of the first diode is connected with the cathode of the second diode and is connected with the first end of the second resistor and the IO5 end of the first controller through the first resistor, and the second end of the second resistor is grounded.
As still further aspects of the invention: the laser diode driving module comprises a third capacitor, a laser diode, a third power tube and a driving device; the voltage and current detection module further comprises a third resistor;
preferably, one end of the laser diode is connected with the cathode of the first diode and is connected with one end of a third resistor and the ground end through a third capacitor, the other end of the third resistor is connected with the IO4 end of the first controller and the source electrode of the third power tube, the drain electrode and the grid electrode of the third power tube are respectively connected with the other end of the laser diode and the output end of the driving device, and the input end of the driving device is connected with the IO3 end of the first controller.
As still further aspects of the invention: the power supply adjusting module comprises a second transformer and a first controllable silicon; the bidirectional current transformation module comprises a first regulating tube, a second regulating tube, a third regulating tube, a fourth regulating tube and a second capacitor;
preferably, a first end of a primary side of the second transformer is connected with one end of a first controllable silicon, the other end of the first controllable silicon is connected with an emitter of the first regulating tube and a collector of the second regulating tube, a second end of the primary side of the second transformer is connected with an emitter of the third regulating tube and a collector of the fourth regulating tube, a collector of the first regulating tube is connected with a collector of the third regulating tube and a first end of a second capacitor, a second end of the second capacitor is connected with an emitter of the second regulating tube and an emitter of the fourth regulating tube, a second end of a secondary side of the second transformer and a first end of the first transformer are respectively connected with a third end of the secondary side of the first transformer and a second end of the second resistor, a control end of the first controllable silicon is connected with an IO10 end of the first controller and a voltage comparison module, and a grid of the first regulating tube, a grid of the second regulating tube, a grid of the third regulating tube and a grid of the fourth regulating tube are respectively connected with an IO6 end, an IO7 end, an IO8 end and an IO9 end of the first controller.
As still further aspects of the invention: the voltage comparison module comprises a first comparator, a second comparator, a fourth diode and a fifth diode;
preferably, the in-phase end of the first comparator is connected with the inverting end of the second comparator and the first end of the second resistor, the inverting end of the first comparator and the in-phase end of the second comparator are respectively connected with the high-voltage threshold value and the low-voltage threshold value, the output end of the first comparator is connected with the IO11 end of the first controller and the anode of the fourth diode, the output end of the second comparator is connected with the IO12 end of the first controller and the anode of the fifth diode, and the cathode of the fourth diode is connected with the cathode of the fifth diode and the control end of the first controllable silicon.
As still further aspects of the invention: the energy storage control module comprises a fourth power tube, a third diode, a third inductor and an energy storage device;
preferably, the drain electrode of the fourth power tube is connected with the first end of the power interface, the source electrode of the fourth power tube is connected with the cathode of the third diode and is connected with the first end of the energy storage device and the first end of the second capacitor through the third inductor, the anode of the third diode is connected with the second end of the energy storage device, the second end of the power interface, the second end of the second capacitor and the ground end, and the grid electrode of the fourth power tube is connected with the IO13 end of the first controller.
Compared with the prior art, the invention has the beneficial effects that: the power control circuit of the laser pulse diode driver is characterized in that a power module is matched with a resonance voltage transformation module to provide pulse electric energy, an intelligent control module is used for adjusting the work of the laser diode driving module to emit pulse laser, a voltage current detection module is matched with a voltage comparison module to judge the size of the pulse electric energy, when the pulse electric energy is higher than a set high-voltage threshold value, the intelligent control module is used for controlling the power adjustment module and the bidirectional current transformation module to perform voltage reduction control on the resonance voltage transformation module, an energy storage control module is used for storing energy, and when the pulse electric energy is lower than the set low-voltage threshold value, the energy storage control module is matched with the bidirectional current transformation module and the power adjustment module to provide compensation electric energy for the resonance voltage transformation module, so that the driving electric energy required by the laser diode driving module is met, frequent power change is avoided, and the working efficiency of the circuit is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic block diagram of a power control circuit of a laser pulse diode driver according to an embodiment of the present invention.
Fig. 2 is a circuit diagram of a power control circuit of a laser pulse diode driver according to an embodiment of the present invention.
Fig. 3 is a circuit diagram of a connection of a voltage comparison module according to an embodiment of the present invention.
FIG. 4 is a circuit diagram illustrating a connection of an energy storage control module according to an embodiment of the present invention
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In one embodiment, referring to fig. 1, a laser pulse diode driver power control circuit includes: the device comprises a power supply module 1, a resonance transformation module 2, an intelligent control module 3, a laser diode driving module 4, a voltage and current detection module 5, a voltage comparison module 6, an energy storage control module 7, a bidirectional converter module 8 and a power supply regulation module 9;
specifically, the power module 1 is connected with the intelligent control module 3 and is used for accessing direct-current electric energy, receiving a first pulse signal output by the intelligent control module 3, performing waveform conversion on the direct-current power supply and outputting square-wave electric energy;
the resonance transformation module 2 is connected with the power supply module 1 and the power supply regulation module 9, and is used for carrying out tuning, transformation, rectification and filtering treatment on square wave electric energy and outputting pulse electric energy, receiving compensation electric energy output by the power supply regulation module 9 and regulating a pulse electric energy value, and transmitting the transformed electric energy to the power supply regulation module 9 and regulating the pulse electric energy value;
the laser diode driving module 4 is connected with the resonance transformation module 2 and the intelligent control module 3, and is used for receiving the pulse electric energy output by the resonance transformation module 2 and the second pulse signal output by the intelligent control module 3, improving the driving capability of the second pulse signal and adjusting the pulse laser emitted by the laser diode;
the voltage and current detection module 5 is connected with the laser diode driving module 4 and is used for voltage sampling of the pulse electric energy and outputting a voltage signal, and is used for current sampling of the laser diode driving module 4 and outputting a current signal;
the voltage comparison module 6 is connected with the voltage and current detection module 5 and is used for setting a high-voltage threshold value and a low-voltage threshold value, outputting a first control signal when the voltage signal is lower than the low-voltage threshold value, and outputting a second control signal when the voltage signal is higher than the high-voltage threshold value;
the intelligent control module 3 is connected with the voltage comparison module 6, the voltage and current detection module 5, the bidirectional current transformation module 8 and the power supply regulation module 9, and is used for outputting a first pulse signal, receiving a voltage signal and a current signal, respectively regulating the duty ratio of the first pulse signal and the duty ratio of the second pulse signal, outputting a third pulse signal, controlling the inversion regulation of the bidirectional current transformation module 8, outputting a fourth pulse signal, controlling the transmission voltage of the power supply regulation module 9, receiving the first control signal and the second control signal, respectively regulating the duty ratio of the third pulse signal and the fourth pulse signal, and outputting a fifth pulse signal;
the energy storage control module 7 is connected with the intelligent control module 3, the bidirectional current conversion module 8 and the power supply module 1, and is used for receiving a fifth pulse signal and carrying out voltage reduction treatment on direct current electric energy, storing the electric energy subjected to voltage reduction and the electric energy provided by the bidirectional current conversion module 8, and providing electric energy for the bidirectional current conversion module 8;
the bidirectional converter module 8 is connected with the power supply regulating module 9, and is used for receiving a third pulse signal, performing inversion regulation on the electric energy provided by the energy storage control module 7, rectifying the electric energy transmitted by the power supply regulating module 9 and providing electric energy for the energy storage control module 7;
the power supply adjusting module 9 is connected with the voltage comparing module 6, and is used for receiving the first control signal and the second control signal and performing power transmission control, performing isolation transmission on the power output after the inversion adjustment of the bidirectional converter module 8 and outputting compensation power, receiving the fifth pulse signal and adjusting the power transformed by the resonance transforming module 2, and transmitting the adjusted power to the bidirectional converter module 8.
In a specific embodiment, the power module 1 may adopt a power tube, a power interface, etc. to form a power circuit, and may be connected to dc power and generate square wave power by alternate conduction of the power tube; the resonant transformation module 2 can adopt a resonant transformation circuit formed by a capacitor, an inductor, a transformer, a rectifier and the like, and performs tuning, transformation, rectification and filtering treatment on input electric energy so as to output pulse electric energy, and the output pulse electric energy is regulated by the interaction with the electric energy of the power supply regulation module 9 in the transformation process; the intelligent control module 3 can adopt a micro-control circuit, integrates a plurality of components such as an arithmetic unit, a controller, a memory, an input/output unit and the like, and realizes the functions of signal processing, data storage, module control, timing control and the like; the laser diode driving module 4 can adopt a laser diode driving circuit composed of a laser diode, a driving device and the like, can improve the driving capability of a second pulse signal output by the intelligent control module 3, and can regulate pulse laser emitted by the laser diode; the voltage and current detection module 5 can adopt a voltage and current detection circuit formed by resistors to sample the voltage of the pulse electric energy and sample the current of the laser diode driving module 4; the voltage comparison module 6 can adopt a voltage comparison circuit composed of a comparator, a diode and the like, and judges the magnitude of the sampled voltage signal by setting a high voltage threshold value and a low voltage threshold value; the energy storage control module 7 can adopt an energy storage control circuit composed of a power tube, an inductor, an energy storage device and the like to realize voltage reduction, energy storage and discharge; the bidirectional current conversion module 8 can adopt a bidirectional current conversion circuit formed by four groups of IGBT with diodes to realize rectification and inversion adjustment work; the power supply adjusting module 9 can adopt a power supply adjusting circuit consisting of a transformer and a controllable silicon to complete power transmission adjustment and perform power interaction with the resonance transformation module 2.
In another embodiment, referring to fig. 1, 2, 3 and 4, the power module 1 includes a power interface, a first power tube Q1 and a second power tube Q2; the intelligent control module 3 comprises a first controller U1;
specifically, a first end of the power interface is connected with a drain electrode of the first power tube Q1, a source electrode of the first power tube Q1 is connected with a drain electrode of the second power tube Q2, both the source electrode of the second power tube Q2 and a second end of the power interface are grounded, and a grid electrode of the first power tube Q1 and a grid electrode of the second power tube Q2 are respectively connected with an IO1 end and an IO2 end of the first controller U1.
In a specific embodiment, the first power tube Q1 and the second power tube Q2 may be N-channel field effect tubes; the first controller U1 may be a DSP chip, and the specific model is not limited.
Further, the resonant transformation module 2 includes a first capacitor C1, a first inductor L1, a second inductor L2, a first transformer B1, a first diode D1, and a second diode D2; the voltage and current detection module 5 comprises a first resistor R1 and a second resistor R2;
specifically, one end of the first inductor L1 is connected to the source of the first power tube Q1 through the first capacitor C1, the other end of the first inductor L1 is connected to one end of the second inductor L2 and a first end of the primary side of the first transformer B1, the other end of the second inductor L2 and a second end of the primary side of the first transformer B1 are both connected to a second end of the power interface, the first end, the second end and the third end of the secondary side of the first transformer B1 are respectively connected to the anode of the first diode D1, the anode of the second diode D2 and the power regulation module 9, the cathode of the first diode D1 is connected to the cathode of the second diode D2 and to the first end of the second resistor R2 and the IO5 end of the first controller U1 through the first resistor R1, and the second end of the second resistor R2 is grounded.
In a specific embodiment, the first capacitor C1, the first inductor L1, and the second inductor L2 are tuned, the first comparator A1 is isolated and transformed, and the first diode D1 and the second diode D2 are rectified; the first resistor R1 and the second resistor R2 sample voltages.
Further, the laser diode driving module 4 includes a third capacitor C3, a laser diode, a third power tube Q3 and a driving device; the voltage and current detection module 5 further comprises a third resistor R3;
specifically, one end of the laser diode is connected to the cathode of the first diode D1 and connected to one end of the third resistor R3 and the ground through the third capacitor C3, the other end of the third resistor R3 is connected to the IO4 end of the first controller U1 and the source of the third power tube Q3, the drain and the gate of the third power tube Q3 are respectively connected to the other end of the laser diode and the output end of the driving device, and the input end of the driving device is connected to the IO3 end of the first controller U1.
In a specific embodiment, the third power transistor Q3 may be an N-channel field effect transistor; the driving device can be a MOS tube driver, and the specific model is not limited; the third resistor R3 performs current sampling.
Further, the power supply adjusting module 9 comprises a second transformer B2 and a first thyristor SCR1; the bidirectional current transformation module 8 comprises a first regulating tube G1, a second regulating tube G2, a third regulating tube G3, a fourth regulating tube G4 and a second capacitor C2;
specifically, a first end of a primary side of the second transformer B2 is connected to one end of the first thyristor SCR1, the other end of the first thyristor SCR1 is connected to an emitter of the first regulator tube G1 and a collector of the second regulator tube G2, a second end of the primary side of the second transformer B2 is connected to an emitter of the third regulator tube G3 and a collector of the fourth regulator tube G4, the collector of the first regulator tube G1 is connected to the collector of the third regulator tube G3 and a first end of the second capacitor C2, a second end of the second capacitor C2 is connected to an emitter of the second regulator tube G2 and an emitter of the fourth regulator tube G4, a second end of a secondary side of the second transformer B2 and a first end of the first resistor R2 are respectively connected to a third end of the secondary side of the first transformer B1 and a second end of the second resistor R2, a control end of the first thyristor SCR1 is connected to an IO10 end of the first controller U1 and a voltage comparison module 6, and a gate of the first regulator tube G1, a gate of the second regulator tube G2, a gate of the third regulator tube G3 and a gate of the fourth regulator tube G4 are respectively connected to IO ends of the IO10 and IO ends of the IO8 and the IO7 ends of the first regulator tube G4 and the IO 7.
In a specific embodiment, the first SCR1 may be a bidirectional thyristor, so as to perform power transmission and transmission adjustment; the first regulating tube G1, the second regulating tube G2, the third regulating tube G3 and the fourth regulating tube G4 can be all Insulated Gate Bipolar Transistors (IGBT) with diodes, so that bidirectional current transformation of electric energy is realized.
Further, the voltage comparison module 6 includes a first comparator A1, a second comparator A2, a fourth diode D4, and a fifth diode D5;
specifically, the in-phase end of the first comparator A1 is connected to the inverting end of the second comparator A2 and the first end of the second resistor R2, the inverting end of the first comparator A1 and the in-phase end of the second comparator A2 are respectively connected to a high voltage threshold and a low voltage threshold, the output end of the first comparator A1 is connected to the IO11 end of the first controller U1 and the anode of the fourth diode D4, the output end of the second comparator A2 is connected to the IO12 end of the first controller U1 and the anode of the fifth diode D5, and the cathode of the fourth diode D4 is connected to the cathode of the fifth diode D5 and the control end of the first silicon controlled rectifier SCR 1.
In a specific embodiment, the first comparator A1 and the second comparator A2 may be LM358 comparators; the high voltage threshold and the low voltage threshold of the above access may be provided by a reference power supply, which is not described herein.
Further, the energy storage control module 7 comprises a fourth power tube Q4, a third diode D3, a third inductor L3 and an energy storage device;
specifically, the drain electrode of the fourth power tube Q4 is connected to the first end of the power interface, the source electrode of the fourth power tube Q4 is connected to the cathode of the third diode D3 and connected to the first end of the energy storage device and the first end of the second capacitor C2 through the third inductor L3, the anode of the third diode D3 is connected to the second end of the energy storage device, the second end of the power interface, the second end of the second capacitor C2 and the ground end, and the gate electrode of the fourth power tube Q4 is connected to the IO13 end of the first controller U1.
In a specific embodiment, the fourth power transistor Q4 may be an N-channel field effect transistor, and is controlled by the first controller U1, and is matched with the third inductor L3 and the third diode D3 to perform a step-down process; the energy storage device can be a lithium battery.
In the power control circuit of the laser pulse diode driver, a power interface is connected with a direct current power supply and connected with the direct current power supply, a first controller U1 controls the conduction degree of a first power tube Q1 and a second power tube Q2, square wave power is generated, a first capacitor C1, a first inductor L1 and a second inductor L2 are used for tuning, a first transformer B1 is used for isolating and transforming, a first diode D1 and a second diode D2 are used for rectifying, a third capacitor C3 is used for filtering, pulse power is provided for the laser diode, a second pulse signal is provided through an IO3 end of the first controller U1, so that a driving device drives the third power tube Q3 to conduct, pulse laser emitted by the laser diode is regulated, meanwhile, the first resistor R1 and the second resistor R2 are used for voltage sampling of the pulse power, the first comparator A1 and the second comparator A2 respectively carry out high voltage judgment and low voltage judgment, when the pulse electric energy is in low voltage, the second comparator A2 controls the first silicon controlled rectifier SCR1 to be conducted, meanwhile, the IO6 end to the IO9 end of the first controller U1 controls the conduction of the first regulating tube G1, the second regulating tube G2, the third regulating tube G3 and the fourth regulating tube G4, the electric energy released by the energy storage device is subjected to inversion regulation treatment, the second transformer B2 is overlapped to the first transformer B1, the pulse electric energy input into the laser diode is improved, so as to meet the power supply of the laser diode, the IO3 end of the first controller U1 is prevented from being improved by the signal duty ratio of the second pulse, similarly, when the pulse electric energy is higher than a high voltage threshold value, the first comparator A1 controls the conduction of the first silicon controlled rectifier SCR1, the electric energy output by the first transformer B1 is consumed by the second transformer B2, the pulse electric energy input into the laser diode is reduced, meanwhile, the IO10 end of the first controller U1 adjusts the conduction degree of the first silicon controlled rectifier SCR1 so as to supply power for the energy storage device, and the IO13 end of the first controller U1 can control the conduction degree of the fourth power tube Q4 so as to directly perform voltage reduction treatment on direct-current electric energy accessed by the power interface so as to supply power for the energy storage device and the bidirectional converter module 8.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. A power control circuit of laser pulse diode driver is characterized in that,
the laser pulse diode driver power supply control circuit includes: the device comprises a power supply module, a resonance transformation module, an intelligent control module, a laser diode driving module, a voltage and current detection module, a voltage comparison module, an energy storage control module, a bidirectional converter module and a power supply regulation module;
the power module is connected with the intelligent control module and used for accessing direct-current electric energy, receiving a first pulse signal output by the intelligent control module, performing waveform conversion on the direct-current power supply and outputting square-wave electric energy;
the resonance transformation module is connected with the power supply module and the power supply regulation module, and is used for carrying out tuning, transformation, rectification and filtering treatment on square wave electric energy and outputting pulse electric energy, receiving compensation electric energy output by the power supply regulation module and regulating a pulse electric energy value, and transmitting the transformed electric energy to the power supply regulation module and regulating the pulse electric energy value;
the laser diode driving module is connected with the resonance transformation module and the intelligent control module, and is used for receiving the pulse electric energy output by the resonance transformation module and the second pulse signal output by the intelligent control module, improving the driving capability of the second pulse signal and adjusting pulse laser emitted by the laser diode;
the voltage and current detection module is connected with the laser diode driving module and is used for voltage sampling of pulse electric energy and outputting a voltage signal, and current sampling of the laser diode driving module and outputting a current signal;
the voltage comparison module is connected with the voltage and current detection module and is used for setting a high-voltage threshold value and a low-voltage threshold value, outputting a first control signal when the voltage signal is lower than the low-voltage threshold value, and outputting a second control signal when the voltage signal is higher than the high-voltage threshold value;
the intelligent control module is connected with the voltage comparison module, the voltage and current detection module, the bidirectional current transformation module and the power supply regulation module, and is used for outputting a first pulse signal, receiving the voltage signal and the current signal, respectively regulating the duty ratio of the first pulse signal and the duty ratio of the second pulse signal, outputting a third pulse signal, controlling the inversion regulation of the bidirectional current transformation module, outputting a fourth pulse signal, controlling the transmission voltage of the power supply regulation module, receiving the first control signal and the second control signal, respectively regulating the duty ratio of the third pulse signal and the fourth pulse signal, and outputting a fifth pulse signal;
the energy storage control module is connected with the intelligent control module, the bidirectional current conversion module and the power supply module, and is used for receiving a fifth pulse signal, carrying out voltage reduction treatment on the direct current electric energy, storing the electric energy subjected to voltage reduction and the electric energy provided by the bidirectional current conversion module, and providing electric energy for the bidirectional current conversion module;
the bidirectional converter module is connected with the power supply adjusting module and is used for receiving a third pulse signal, performing inversion adjustment on the electric energy provided by the energy storage control module, rectifying the electric energy transmitted by the power supply adjusting module and providing electric energy for the energy storage control module;
the power supply adjusting module is connected with the voltage comparing module, is used for receiving the first control signal and the second control signal and performing electric energy transmission control, is used for performing isolation transmission on electric energy output after inversion adjustment of the bidirectional variable current module and outputting compensation electric energy, is used for receiving a fifth pulse signal and adjusting the electric energy after transformation of the resonant variable current module, and is used for transmitting the adjusted electric energy to the bidirectional variable current module.
2. The laser pulse diode driver power control circuit of claim 1, wherein the power module comprises a power interface, a first power tube and a second power tube; the intelligent control module comprises a first controller;
the first end of the power interface is connected with the drain electrode of the first power tube, the source electrode of the first power tube is connected with the drain electrode of the second power tube, the source electrode of the second power tube and the second end of the power interface are grounded, and the grid electrode of the first power tube and the grid electrode of the second power tube are respectively connected with the IO1 end and the IO2 end of the first controller.
3. The laser pulse diode driver power control circuit of claim 2, wherein the resonant transformation module comprises a first capacitor, a first inductor, a second inductor, a first transformer, a first diode, a second diode; the voltage and current detection module comprises a first resistor and a second resistor;
one end of the first inductor is connected with the source electrode of the first power tube through the first capacitor, the other end of the first inductor is connected with one end of the second inductor and the first end of the primary side of the first transformer, the other end of the second inductor and the second end of the primary side of the first transformer are both connected with the second end of the power interface, the first end, the second end and the third end of the secondary side of the first transformer are respectively connected with the anode of the first diode, the anode of the second diode and the power regulating module, the cathode of the first diode is connected with the cathode of the second diode and is connected with the first end of the second resistor and the IO5 end of the first controller through the first resistor, and the second end of the second resistor is grounded.
4. A laser pulse diode driver power supply control circuit as claimed in claim 3, wherein the laser diode driver module comprises a third capacitor, a laser diode, a third power tube and a driving device; the voltage and current detection module further comprises a third resistor;
one end of the laser diode is connected with the cathode of the first diode and is connected with one end of a third resistor and the ground end through a third capacitor, the other end of the third resistor is connected with the IO4 end of the first controller and the source electrode of the third power tube, the drain electrode and the grid electrode of the third power tube are respectively connected with the other end of the laser diode and the output end of the driving device, and the input end of the driving device is connected with the IO3 end of the first controller.
5. The laser pulse diode driver power control circuit of claim 4, wherein the power conditioning module comprises a second transformer and a first thyristor; the bidirectional current transformation module comprises a first regulating tube, a second regulating tube, a third regulating tube, a fourth regulating tube and a second capacitor;
the first end of the primary side of the second transformer is connected with one end of a first controllable silicon, the other end of the first controllable silicon is connected with an emitter of a first regulating tube and a collector of a second regulating tube, the second end of the primary side of the second transformer is connected with an emitter of a third regulating tube and a collector of a fourth regulating tube, the collector of the first regulating tube is connected with the collector of the third regulating tube and the first end of a second capacitor, the second end of the second capacitor is connected with the emitter of the second regulating tube and the emitter of the fourth regulating tube, the second end of the secondary side of the second transformer and the first end of the second transformer are respectively connected with a third end of the secondary side of the first transformer and a second end of a second resistor, the control end of the first controllable silicon is connected with an IO10 end of the first controller and a voltage comparison module, and the grid of the first regulating tube, the grid of the second regulating tube and the grid of the fourth regulating tube are respectively connected with an IO6 end, an IO7 end, an IO8 end and an IO9 end of the first controller.
6. The laser pulse diode driver power control circuit of claim 5, wherein the voltage comparison module comprises a first comparator, a second comparator, a fourth diode, and a fifth diode;
the in-phase end of the first comparator is connected with the inverting end of the second comparator and the first end of the second resistor, the inverting end of the first comparator and the in-phase end of the second comparator are respectively connected with the high-voltage threshold value and the low-voltage threshold value, the output end of the first comparator is connected with the IO11 end of the first controller and the anode of the fourth diode, the output end of the second comparator is connected with the IO12 end of the first controller and the anode of the fifth diode, and the cathode of the fourth diode is connected with the cathode of the fifth diode and the control end of the first silicon controlled rectifier.
7. The laser pulse diode driver power control circuit of claim 5, wherein the energy storage control module comprises a fourth power tube, a third diode, a third inductor, and an energy storage device;
the drain electrode of the fourth power tube is connected with the first end of the power interface, the source electrode of the fourth power tube is connected with the cathode of the third diode and is connected with the first end of the energy storage device and the first end of the second capacitor through the third inductor, the anode of the third diode is connected with the second end of the energy storage device, the second end of the power interface, the second end of the second capacitor and the ground end, and the grid electrode of the fourth power tube is connected with the IO13 end of the first controller.
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