CN116613970B - Miniature inversion side MOSFET drive control circuit - Google Patents
Miniature inversion side MOSFET drive control circuit Download PDFInfo
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- CN116613970B CN116613970B CN202310889559.3A CN202310889559A CN116613970B CN 116613970 B CN116613970 B CN 116613970B CN 202310889559 A CN202310889559 A CN 202310889559A CN 116613970 B CN116613970 B CN 116613970B
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Classifications
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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
- H02M1/092—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 the control signals being transmitted optically
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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
- H02M7/5387—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 in a bridge configuration
- H02M7/53871—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 in a bridge configuration with automatic control of output voltage or current
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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
- H02M7/539—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 with automatic control of output wave form or frequency
- H02M7/5395—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 with automatic control of output wave form or frequency by pulse-width modulation
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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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electronic Switches (AREA)
Abstract
The invention discloses a miniature inversion side MOSFET drive control circuit, which relates to the technical field of inversion driving and comprises an intelligent control module, a control module and a control module, wherein the intelligent control module is used for providing pulse signals and signal processing and performing isolation amplitude adjustment processing by an isolation driving module; the first switch control module and the second switch control module are used for controlling the working state of the inversion module; the mode control module is used for selectively transmitting the input signals to the inversion module; the inversion module is used for inversion processing and outputting by the output module; and the switch protection module is used for absorbing the overshoot voltage component and suppressing oscillation. The miniature inversion side MOSFET driving control circuit of the invention improves the driving capability of the pulse signal provided by the intelligent control module by the isolation driving module, and the mode control module selects the transmission path of the pulse signal after the isolation processing according to the signal output by the intelligent control module and completes the inversion work of the inversion module by matching with the first switch control module and the second switch control module.
Description
Technical Field
The invention relates to the technical field of inversion driving, in particular to a miniature inversion side MOSFET driving control circuit.
Background
The micro inverter device is capable of inverting direct current electric energy into alternating current electric energy so as to meet the requirement of small equipment on inversion work, the micro inverter device generally requires small volume, high efficiency and low cost, the existing micro inverter device mostly adopts a related driving device or an optocoupler driving circuit, the driving capability of pulse signals output by the micro control device is improved, so that the micro control device can better control the work of the micro inverter device, but the full-bridge micro inverter device consists of four MOSFET (metal oxide semiconductor field effect transistor) tubes, so that two driving devices or four optocoupler driving circuits are required to complete the driving control of the MOSFET tubes, the volume of the micro inverter control circuit is larger, and a certain dead time is required to be set for avoiding the problem that upper and lower tubes in the micro inverter device are simultaneously conducted, and the full-bridge micro inverter device is more troublesome to be improved.
Disclosure of Invention
The embodiment of the invention provides a miniature inversion side MOSFET driving control circuit, which aims to solve the problems in the background technology.
According to an embodiment of the present invention, there is provided a micro inversion side MOSFET drive control circuit including: the power supply module, the intelligent control module, the isolation driving module, the first switch control module, the second switch control module, the mode control module, the inversion module, the switch protection module and the output module;
the power supply module is used for providing direct-current electric energy;
the intelligent control module is used for outputting a first pulse signal and a second pulse signal, rectifying the first pulse signal and the second pulse signal and respectively outputting a first control signal and a second control signal;
the isolation driving module is connected with the intelligent control module and the mode control module, and is used for carrying out amplitude adjustment processing on the voltages of the first pulse signal and the second pulse signal and respectively outputting a third pulse signal and a fourth pulse signal, and for isolating and transmitting the third pulse signal and the fourth pulse signal to the mode control module;
the first switch control module is connected with the intelligent control module and is used for improving the control capability of the first control signal and outputting a third control signal;
the second switch control module is connected with the intelligent control module and is used for improving the control capability of the second control signal and outputting a fourth control signal;
the mode control module is connected with the intelligent control module and the inversion module, and is used for controlling the mode control circuit to transmit the third pulse signal to the inversion module through the first control signal and is used for controlling the mode control circuit to transmit the fourth pulse signal to the inversion module through the second control signal;
the inverter module is connected with the first switch control module, the second switch control module and the power supply module, and is used for receiving the third pulse signal and the third control signal through the inverter circuit, regulating and controlling the input direct current electric energy in a positive period, receiving the fourth pulse signal and the fourth control signal through the inverter circuit, regulating and controlling the input direct current electric energy in a negative period, integrating the electric energy regulated in the positive period and the negative period and outputting alternating current electric energy;
the switch protection module is connected with the inversion module and is used for absorbing overshoot voltage components generated by power tube shear when the inversion module works and inhibiting oscillation of the inversion module;
the output module is connected with the inversion module and is used for receiving and outputting the alternating current energy output by the inversion module.
Compared with the prior art, the invention has the beneficial effects that: the miniature inversion side MOSFET driving control circuit provided by the invention has the advantages that the intelligent control module provides pulse signals, the isolation driving module improves the driving capability of the pulse signals, the mode control module selects the transmission path of the processed pulse signals according to the signals output by the intelligent control module and controls the working state of the inversion module by matching with the first switch control module and the second switch control module, the driving control of the inversion control module is realized by one optocoupler driving circuit, the normal inversion work of the control circuit is ensured while the volume of the control circuit is reduced, and the control circuit does not need to set dead time due to the switching rate of the mode control module, so that the complexity of the control circuit is reduced.
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 driving control circuit of a MOSFET on a micro inverter side according to an embodiment of the present invention.
Fig. 2 is a circuit diagram of a micro inverter side MOSFET driving control circuit according to an embodiment of the present invention.
Fig. 3 is a connection circuit diagram of a first switch control module provided in an embodiment of the present invention.
Fig. 4 is a circuit diagram of a connection of a second switch 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 micro-inverter side MOSFET drive control circuit includes: the power supply module 1, the intelligent control module 2, the isolation driving module 3, the first switch control module 4, the second switch control module 5, the mode control module 6, the inversion module 7, the switch protection module 8 and the output module 9;
specifically, the power module 1 is configured to provide dc power;
the intelligent control module 2 is used for outputting a first pulse signal and a second pulse signal, rectifying the first pulse signal and the second pulse signal and respectively outputting a first control signal and a second control signal;
the isolation driving module 3 is connected with the intelligent control module 2 and the mode control module 6, and is used for carrying out amplitude adjustment processing on the voltages of the first pulse signal and the second pulse signal and respectively outputting a third pulse signal and a fourth pulse signal, and is used for isolating and transmitting the third pulse signal and the fourth pulse signal to the mode control module 6;
the first switch control module 4 is connected with the intelligent control module 2 and is used for improving the control capability of the first control signal and outputting a third control signal;
the second switch control module 5 is connected with the intelligent control module 2 and is used for improving the control capability of the second control signal and outputting a fourth control signal;
the mode control module 6 is connected with the intelligent control module 2 and the inversion module 7, and is used for controlling the mode control circuit to transmit the third pulse signal to the inversion module 7 through the first control signal, and is used for controlling the mode control circuit to transmit the fourth pulse signal to the inversion module 7 through the second control signal;
the inverter module 7 is connected with the first switch control module 4, the second switch control module 5 and the power supply module 1, and is used for receiving the third pulse signal and the third control signal through an inverter circuit, regulating and controlling the input direct current electric energy in a positive period, receiving the fourth pulse signal and the fourth control signal through the inverter circuit, regulating and controlling the input direct current electric energy in a negative period, and integrating the electric energy regulated in the positive period and the negative period and outputting alternating current electric energy;
the switch protection module 8 is connected with the inversion module 7 and is used for absorbing an overshoot voltage component generated by power tube shear when the inversion module 7 works and inhibiting oscillation of the inversion module 7;
and the output module 9 is connected with the inversion module 7 and is used for receiving and outputting the alternating current power output by the inversion module 7.
In a specific embodiment, the power module 1 may use a power input port, and connect with a dc power supply to provide dc power for the module; the intelligent control module 2 can adopt a micro-control circuit and a signal processing circuit, the micro-control circuit provides pulse signals required by the inversion module 7 for inversion, and the signal processing circuit rectifies the pulse signals; the isolation driving module 3 can adopt an optocoupler driving circuit, and is used for carrying out isolation transmission on an input signal, detecting the transmitted signal and carrying out amplitude adjustment treatment; the first switch control module 4 and the second switch control module 5 can adopt switch control circuits and are controlled by signals rectified by the intelligent control module 2, so that the control of power tubes in the inversion control module is realized; the mode control module 6 can adopt an analog switch circuit, and is controlled by the signal rectified by the intelligent control module 2, so that the signal output by the isolation driving module 3 is selectively transmitted; the inverter module 7 can adopt an inverter circuit consisting of four groups of MOSFET power tubes; the switch protection module 8 can adopt a switch protection circuit consisting of a resistor, a diode and a capacitor, and absorbs overshoot voltage components generated in the working process and performs oscillation suppression; the output module 9 may adopt an output circuit to perform isolated transmission on the electric energy output by the inverter module 7.
In another embodiment, referring to fig. 1, 2, 3 and 4, the power module 1 includes a power input port; the inverter module 7 comprises a first power tube Q1, a second power tube Q2, a third power tube Q3 and a fourth power tube Q4; the output module 9 comprises a first transformer W1 and an output port;
specifically, the first end of the power input port is connected to the drain of the first power tube Q1 and the drain of the third power tube Q3, the source of the first power tube Q1 is connected to the drain of the second power tube Q2 and the first end of the primary side of the first transformer W1, the source of the third power tube Q3 is connected to the second end of the primary side of the first transformer W1 and the drain of the fourth power tube Q4, the second end of the power input port is connected to the source of the second power tube Q2 and the source of the fourth power tube Q4, the first end and the second end of the secondary side of the first transformer W1 are respectively connected to the first end and the second end of the output port, the gate of the first power tube Q1 and the gate of the second power tube Q2 are connected to the mode control module 6, and the gate of the third power tube Q3 and the gate of the fourth power tube Q4 are respectively connected to the first switch control module 4 and the second switch control module 5.
In a specific embodiment, the first power tube Q1, the second power tube Q2, the third power tube Q3 and the fourth power tube Q4 may all be inverter circuits formed by N-channel enhancement type MOS tubes, where the second power tube Q2 and the third power tube Q3 conduct control in a positive period, and the first power tube Q1 and the fourth power tube Q4 conduct in a negative period, so as to implement inversion operation.
Further, the switch protection module 8 includes a second capacitor C2, a fourth resistor R4, a third capacitor C3, a first diode D1, a second diode D2, a fourth capacitor C4, a fifth resistor R5, and a fifth capacitor C5;
specifically, one end of the second capacitor C2 is connected to one end of the fourth resistor R4 and the drain electrode of the first power tube Q1, the other end of the fourth resistor R4 is connected to the cathode of the first diode D1 and one end of the third capacitor C3, one end of the fourth capacitor C4 is connected to the drain electrode of the third power tube Q3 and one end of the fifth capacitor C5, the other end of the fourth capacitor C4 is connected to the anode of the second diode D2 and one end of the fifth resistor R5, the other end of the second capacitor C2 is connected to the other end of the third capacitor C3 and the source electrode of the second power tube Q2, the other end of the fifth resistor R5 is connected to the other end of the fifth capacitor C5 and the source electrode of the fourth power tube Q4, and the cathode of the second diode D2 is connected to the source electrode of the third power tube Q3 and the anode of the first diode D1.
In a specific embodiment, the fourth resistor R4 and the fifth resistor R5 are used for absorbing the overshoot voltage component generated when the first power tube Q1, the second power tube Q2, the third power tube Q3 and the fourth power tube Q4 shear, the third capacitor C3 and the fourth capacitor C4 reduce the loss of the fourth resistor R4 and the fifth resistor R5, the first diode D1 and the second diode D2 perform oscillation suppression, and the second capacitor C2 and the fifth capacitor C5 suppress the voltage rise when the fourth resistor R4, the third capacitor C3, the first diode D1, the second diode D2, the fourth capacitor C4 and the fifth resistor R5 operate.
Further, the intelligent control module 2 includes a first resistor R1, a second resistor R2, a third diode D3, a fourth diode D4, and a first controller U1;
specifically, the first IO end of the first controller U1 is connected to the first end of the first resistor R1 and the anode of the third diode D3, the second IO end of the first controller U1 is connected to the first end of the second resistor R2 and the anode of the fourth diode D4, the second end of the first resistor R1 is connected to the second end of the second resistor R2 and the isolation driving module 3, and the cathode of the third diode D3 and the cathode of the fourth diode D4 are connected to the mode control module 6.
In a specific embodiment, the first controller U1 forms a micro-control circuit, which may be, but is not selected from an STM32 single-chip microcomputer, integrates a plurality of components such as an arithmetic unit, a controller, a memory, an input/output unit, etc., and realizes functions such as signal processing, data storage, module control, timing control, etc., so as to provide two groups of pulse signals; the first resistor R1, the second resistor R2, the third diode D3 and the fourth diode D4 form a signal processing circuit, the first resistor R1 and the second resistor R2 respectively transmit the input pulse signal to the isolation driving module 3, and the third diode D3 and the fourth diode D4 respectively rectify the input pulse signal.
Further, the isolation driving module 3 includes a first optocoupler U2, a first power source VCC1, a third resistor R3, and a first capacitor C1;
specifically, the eighth IO terminal of the first optocoupler U2 is grounded, the seventh IO terminal of the first optocoupler U2 is connected to the second terminal of the first resistor R1, the sixth IO terminal of the first optocoupler U2 is connected to the first power VCC1 and one terminal of the first capacitor C1, the third IO terminal of the first optocoupler U2 is connected to the other terminal of the first capacitor C1, the fifth IO terminal and the fourth IO terminal of the first optocoupler U2 are both connected to the first terminal of the third resistor R3, and the second terminal of the third resistor R3 is connected to the mode control module 6.
In a specific embodiment, the first optical coupler U2 may be a TLP-250 optical coupler, and perform isolated transmission on an input signal and adjust an amplitude of the signal, where a seventh IO end of the first optical coupler U2 is a positive end, an eighth IO end of the first optical coupler U2 is a negative end, a third IO end of the first optical coupler U2 is a ground end, a fourth IO end and a fifth IO end of the first optical coupler U2 are both voltage output ends, and a sixth IO end of the first optical coupler U2 is a power input end.
Further, the mode control module 6 includes a first analog switch U3;
specifically, the first IN end and the third IN end of the first analog switch U3 are both connected to the second end of the third resistor R3, the second IN end and the fourth IN end of the first analog switch U3 are both connected to the third IO end of the first optocoupler U2, the second CT end and the first CT end of the first analog switch U3 are both connected to the cathode of the third diode D3, the third CT end and the fourth CT end of the first analog switch U3 are both connected to the cathode of the fourth diode D4, the first OUT end and the second OUT end of the first analog switch U3 are respectively connected to the gate of the first power tube Q1 and the source of the first power tube Q1, and the third OUT end and the fourth OUT end of the first analog switch U3 are respectively connected to the gate of the second power tube Q2 and the source of the second power tube Q2.
IN a specific embodiment, the first analog switch U3 may be a CD4066 chip, because of the delay of the internal switch of the first analog switch U3, the delay may be used to compensate for dead time required by switching the power tube, so as to avoid the problem that the power tube is turned on simultaneously due to the switching rate when the first power tube Q1 and the second power tube Q2 are switched, where the first IN end, the second IN end, the third IN end and the fourth IN end of the first analog switch U3 are all signal input ends, the first OUT end, the second OUT end, the third OUT end and the fourth OUT end of the first analog switch U3 are all signal output ends, the first CT end, the second CT end, the third CT end and the fourth CT end of the first analog switch U3 are all control ends, the first IN end and the first OUT end of the first analog switch can be controlled to be turned on by the first CT end, the second IN end and the second OUT end of the first analog switch can be controlled to be turned on by the second IN end, and the third IN end and the fourth OUT end of the first analog switch can be controlled by the third CT end and the fourth IN end and the fourth CT end of the first analog switch can be controlled to be turned on by the third CT end and fourth CT end.
Further, the first switch control module 4 includes a second power supply VCC2, a first switch tube VT1, and a sixth resistor R6; the second switch control module 5 comprises a second switch tube VT2 and a seventh resistor R7;
specifically, the second power supply VCC2 is connected to the collector of the first switching tube VT1 and the collector of the second switching tube VT2, the base of the first switching tube VT1 and the base of the second switching tube VT2 are respectively connected to the cathode of the third diode D3 and the cathode of the fourth diode D4, the emitter of the first switching tube VT1 is connected to the gate of the third power tube Q3 and is grounded through a sixth resistor R6, and the emitter of the second switching tube VT2 is connected to the gate of the fourth power tube Q4 and is grounded through a seventh resistor R7.
In a specific embodiment, the first switching tube VT1 and the second switching tube VT2 may be NPN transistors, which respectively control the on states of the third power tube Q3 and the fourth power tube Q4.
The invention relates to a miniature inversion side MOSFET drive control circuit, when a second IO end of a first controller U1 outputs a first pulse signal IN a positive period, a fourth diode D4 carries OUT rectification treatment and controls a third CT end and a fourth CT end of a first analog switch U3 to be IN high level, so that a third IN end and a third OUT end of the first analog switch U3 are conducted, a fourth IN end and a fourth OUT end of the first analog switch U3 are conducted, a first switching tube VT1 is controlled to be conducted, the third switching tube is conducted, a first opto-coupler U2 transmits a first pulse signal to the first analog switch U3 IN an isolated mode, the first analog switch U3 transmits the first pulse signal to a second power tube Q2, the conduction state of the second power tube Q2 is controlled, at the moment, the third power tube Q3, the primary side of a first transformer W1, the second power tube Q2 and a power input port form an electric energy loop, and when the first IO end of the first controller U1 outputs a second pulse signal IN a negative period, the second CT end and the first CT of the first analog switch U3 are rectified by the third diode D3 to be controlled to be IN high level, the second switch tube VT2 is controlled to be conducted, the second pulse signal drives the conducting state of the first power tube Q1 through the first optocoupler U2 and the first analog switch U3, the conducting state of the fourth switch tube is controlled, the first power tube Q1, the primary side of the first transformer W1, the fourth power tube Q4 and a power input port form an electric energy loop, then the input direct current electric energy is inverted into alternating current electric energy and transmitted by the first transformer W1, the output port is output, the fourth resistor R4, the first diode D1, the third capacitor C3, the fourth capacitor C4, the second diode D2 and the fifth resistor R5 form two groups of switch protection circuits, and overshoot voltage components generated when the first power tube Q1, the second power tube Q2, the third power tube Q3 and the fourth power tube Q4 are switched to work are absorbed, and the voltage rise rate is suppressed by the second capacitor C2 and the fifth capacitor C5.
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 miniature inversion side MOSFET driving control circuit is characterized in that,
the miniature inversion side MOSFET drive control circuit comprises: the power supply module, the intelligent control module, the isolation driving module, the first switch control module, the second switch control module, the mode control module, the inversion module, the switch protection module and the output module;
the power supply module is used for providing direct-current electric energy;
the intelligent control module is used for outputting a first pulse signal and a second pulse signal, rectifying the first pulse signal and the second pulse signal and respectively outputting a first control signal and a second control signal;
the isolation driving module is connected with the intelligent control module and the mode control module, and is used for carrying out amplitude adjustment processing on the voltages of the first pulse signal and the second pulse signal and respectively outputting a third pulse signal and a fourth pulse signal, and for isolating and transmitting the third pulse signal and the fourth pulse signal to the mode control module;
the first switch control module is connected with the intelligent control module and is used for improving the control capability of the first control signal and outputting a third control signal;
the second switch control module is connected with the intelligent control module and is used for improving the control capability of the second control signal and outputting a fourth control signal;
the mode control module is connected with the intelligent control module and the inversion module, and is used for controlling the mode control circuit to transmit the third pulse signal to the inversion module through the first control signal and is used for controlling the mode control circuit to transmit the fourth pulse signal to the inversion module through the second control signal;
the inverter module is connected with the first switch control module, the second switch control module and the power supply module, and is used for receiving the third pulse signal and the third control signal through the inverter circuit, regulating and controlling the input direct current electric energy in a positive period, receiving the fourth pulse signal and the fourth control signal through the inverter circuit, regulating and controlling the input direct current electric energy in a negative period, integrating the electric energy regulated in the positive period and the negative period and outputting alternating current electric energy;
the switch protection module is connected with the inversion module and is used for absorbing overshoot voltage components generated by power tube shear when the inversion module works and inhibiting oscillation of the inversion module;
the output module is connected with the inversion module and is used for receiving and outputting the alternating current energy output by the inversion module.
2. The miniature inverter-side MOSFET drive control circuit of claim 1, wherein said power module comprises a power input port; the inversion module comprises a first power tube, a second power tube, a third power tube and a fourth power tube; the output module comprises a first transformer and an output port;
the first end of the power input port is connected with the drain electrode of the first power tube and the drain electrode of the third power tube, the source electrode of the first power tube is connected with the drain electrode of the second power tube and the first end of the primary side of the first transformer, the source electrode of the third power tube is connected with the second end of the primary side of the first transformer and the drain electrode of the fourth power tube, the second end of the power input port is connected with the source electrode of the second power tube and the source electrode of the fourth power tube, the first end and the second end of the secondary side of the first transformer are respectively connected with the first end and the second end of the output port, the grid electrode of the first power tube and the grid electrode of the second power tube are connected with the mode control module, and the grid electrode of the third power tube and the grid electrode of the fourth power tube are respectively connected with the first switch control module and the second switch control module.
3. The micro-inverter side MOSFET drive control circuit of claim 2, wherein the switch protection module comprises a second capacitor, a fourth resistor, a third capacitor, a first diode, a second diode, a fourth capacitor, a fifth resistor, and a fifth capacitor;
one end of the second capacitor is connected with one end of the fourth resistor and the drain electrode of the first power tube, the other end of the fourth resistor is connected with the cathode of the first diode and one end of the third capacitor, one end of the fourth capacitor is connected with the drain electrode of the third power tube and one end of the fifth capacitor, the other end of the fourth capacitor is connected with the anode of the second diode and one end of the fifth resistor, the other end of the second capacitor is connected with the other end of the third capacitor and the source electrode of the second power tube, the other end of the fifth resistor is connected with the other end of the fifth capacitor and the source electrode of the fourth power tube, and the cathode of the second diode is connected with the source electrode of the third power tube and the anode of the first diode.
4. The micro-inverter-side MOSFET drive control circuit of claim 2, wherein the intelligent control module comprises a first resistor, a second resistor, a third diode, a fourth diode, and a first controller;
the first IO end of the first controller is connected with the first end of the first resistor and the anode of the third diode, the second IO end of the first controller is connected with the first end of the second resistor and the anode of the fourth diode, the second end of the first resistor is connected with the second end of the second resistor and the isolation driving module, and the cathode of the third diode and the cathode of the fourth diode are connected with the mode control module.
5. The miniature inverter-side MOSFET drive control circuit of claim 4, wherein the isolated drive module comprises a first optocoupler, a first power supply, a third resistor, and a first capacitor;
the eighth IO end of the first optocoupler is grounded, the seventh IO end of the first optocoupler is connected with the second end of the first resistor, the sixth IO end of the first optocoupler is connected with the first power supply and one end of the first capacitor, the third IO end of the first optocoupler is connected with the other end of the first capacitor, the fifth IO end and the fourth IO end of the first optocoupler are both connected with the first end of the third resistor, and the second end of the third resistor is connected with the mode control module.
6. The micro-inverter side MOSFET drive control circuit of claim 5, wherein the mode control module comprises a first analog switch;
the first IN end and the third IN end of the first analog switch are connected with the second end of the third resistor, the second IN end and the fourth IN end of the first analog switch are connected with the third IO end of the first optocoupler, the second CT end and the first CT end of the first analog switch are connected with the cathode of the third diode, the third CT end and the fourth CT end of the first analog switch are connected with the cathode of the fourth diode, the first OUT end and the second OUT end of the first analog switch are connected with the grid electrode of the first power tube and the source electrode of the first power tube respectively, and the third OUT end and the fourth OUT end of the first analog switch are connected with the grid electrode of the second power tube and the source electrode of the second power tube respectively.
7. The micro-inverter-side MOSFET drive control circuit of claim 6, wherein the first switch control module comprises a second power supply, a first switching tube, and a sixth resistor; the second switch control module comprises a second switch tube and a seventh resistor;
the second power supply is connected with the collector of the first switching tube and the collector of the second switching tube, the base of the first switching tube and the base of the second switching tube are respectively connected with the cathode of the third diode and the cathode of the fourth diode, the emitter of the first switching tube is connected with the grid of the third power tube and is grounded through a sixth resistor, and the emitter of the second switching tube is connected with the grid of the fourth power tube and is grounded through a seventh resistor.
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| CN202310889559.3A CN116613970B (en) | 2023-07-20 | 2023-07-20 | Miniature inversion side MOSFET drive control circuit |
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| CN202310889559.3A CN116613970B (en) | 2023-07-20 | 2023-07-20 | Miniature inversion side MOSFET drive control circuit |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201118463Y (en) * | 2007-11-15 | 2008-09-17 | 华南理工大学 | A high-power high-frequency soft switch IGBT reverse agglomeration power supply |
| CN201878401U (en) * | 2010-11-17 | 2011-06-22 | 德州三和电器有限公司 | Single-periodic-controlled constant-power electronic ballast for HID (high intensity discharge) lamp |
| CN116191647A (en) * | 2022-12-07 | 2023-05-30 | 国网浙江省电力有限公司泰顺县供电公司 | Emergency power supply of power equipment |
| CN116317668A (en) * | 2023-05-17 | 2023-06-23 | 苏州腾圣技术有限公司 | Inversion protection circuit |
-
2023
- 2023-07-20 CN CN202310889559.3A patent/CN116613970B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201118463Y (en) * | 2007-11-15 | 2008-09-17 | 华南理工大学 | A high-power high-frequency soft switch IGBT reverse agglomeration power supply |
| CN201878401U (en) * | 2010-11-17 | 2011-06-22 | 德州三和电器有限公司 | Single-periodic-controlled constant-power electronic ballast for HID (high intensity discharge) lamp |
| CN116191647A (en) * | 2022-12-07 | 2023-05-30 | 国网浙江省电力有限公司泰顺县供电公司 | Emergency power supply of power equipment |
| CN116317668A (en) * | 2023-05-17 | 2023-06-23 | 苏州腾圣技术有限公司 | Inversion protection circuit |
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