CN116317660A - Controllable inverter circuit - Google Patents
Controllable inverter circuit Download PDFInfo
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- CN116317660A CN116317660A CN202310311645.6A CN202310311645A CN116317660A CN 116317660 A CN116317660 A CN 116317660A CN 202310311645 A CN202310311645 A CN 202310311645A CN 116317660 A CN116317660 A CN 116317660A
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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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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/122—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. dc/ac converters
- H02H7/1225—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. dc/ac converters responsive to internal faults, e.g. shoot-through
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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)
- Inverter Devices (AREA)
Abstract
The invention discloses a controllable inverter circuit, which relates to the field of inverters, and comprises: the power supply module is used for outputting direct-current voltage and supplying the direct-current voltage to the voltage-stabilizing power supply module; the voltage-stabilizing power supply module is used for outputting stable direct-current voltage and supplying the stable direct-current voltage to the clamping module, the inversion module and the delay control module; the clamping module is used for providing stable voltage for the inversion module; compared with the prior art, the invention has the beneficial effects that: according to the invention, by arranging the abnormal protection module, the delay control module and improving the alternating current output module, when the circuit is just electrified, the alternating current output module does not initially supply power to the load, voltage supply test operation is performed first, when the abnormal protection module detects that the alternating current output module supplies power normally, the alternating current output module is started to supply power to the load after the delay control module delays, and the inverter circuit detects and processes the output voltage of the inverter before formally supplying power to the load, so that the load is prevented from being damaged by voltage abnormality.
Description
Technical Field
The invention relates to the field of inverters, in particular to a controllable inverter circuit.
Background
The inverter is a converter for converting direct current energy into alternating current with fixed frequency and fixed voltage or frequency and voltage. The inverter comprises an inverter bridge, control logic and a filter circuit. Is widely applicable to air conditioners, sewing machines, computers, televisions, washing machines, smoke exhaust ventilators, refrigerator massagers, fans, illumination and the like.
The existing inverter circuit lacks an advanced detection device, and can not judge whether the circuit is faulty before the inverter circuit works formally, so that improvement is needed.
Disclosure of Invention
The present invention is directed to a controllable inverter circuit, which solves the above-mentioned problems.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a controllable inverter circuit, comprising:
the power supply module is used for outputting direct-current voltage and supplying the direct-current voltage to the voltage-stabilizing power supply module;
the voltage-stabilizing power supply module is used for outputting stable direct-current voltage and supplying the stable direct-current voltage to the clamping module, the inversion module and the delay control module;
the clamping module is used for providing stable voltage for the inversion module;
the inversion module is used for converting direct current into alternating current and supplying the alternating current to the alternating current output module;
the alternating current output module is used for outputting alternating current to supply to a load;
the delay control module is used for controlling the closing of the alternating current output module and the load loop after the circuit is started to delay;
the abnormal protection module is used for detecting whether the voltage of the alternating current output module is abnormal or not when the circuit is started, and disconnecting the delay control module when the voltage of the alternating current output module is abnormal;
the output end of the power supply module is connected with the input end of the voltage-stabilizing power supply module, the output end of the voltage-stabilizing power supply module is connected with the input end of the clamping module, the first input end of the inversion module and the first input end of the delay control module, the output end of the clamping module is connected with the second input end of the inversion module, the output end of the inversion module is connected with the first input end of the alternating current output module, the output end of the alternating current output module is connected with the input end of the abnormal protection module, the output end of the abnormal protection module is connected with the second input end of the delay control module, and the output end of the delay control module is connected with the second input end of the alternating current output module.
As still further aspects of the invention: the power supply module comprises a battery and a first switch, the negative electrode of the battery is grounded, the positive electrode of the battery is connected with one end of the first switch, and the other end of the first switch is connected with the input end of the voltage-stabilizing power supply module.
As still further aspects of the invention: the voltage-stabilizing power supply module comprises a first resistor, a first diode, a first triode, a second triode and a first capacitor, wherein one end of the first resistor is connected with a collector of the first triode, a collector of the second triode and an output end of the power supply module, the other end of the first resistor is connected with a base of the first triode and a cathode of the first diode, an anode of the first diode is grounded, an emitter of the first triode is connected with a base of the second triode, and an emitter of the second triode is connected with one end of the first capacitor, an input end of the voltage clamping module, a first input end of the inversion module and a first input end of the delay control module.
As still further aspects of the invention: the voltage clamping module comprises a second resistor, a second diode and a second capacitor, one end of the second resistor is connected with the output end of the voltage-stabilizing power supply module, the other end of the second resistor is connected with the negative electrode of the second diode, one end of the second capacitor and the second input end of the inversion module, the positive electrode of the second diode is grounded, and the other end of the second capacitor is grounded.
As still further aspects of the invention: the inverter module comprises an integrated circuit, a third capacitor, a third resistor, a first potentiometer, a fourth resistor, a fifth resistor, a third MOS tube, a fourth MOS tube and a transformer, wherein the model of the integrated circuit is CD4047, a number 4 pin, a number 5 pin, a number 6 pin and a number 14 pin of the integrated circuit are connected with the output end of the clamping module, a number 2 pin of the integrated circuit is connected with one end of the third resistor, the other end of the third resistor is connected with one end of the first potentiometer, the other end of the first potentiometer is connected with a number 3 pin of the integrated circuit and one end of the third capacitor, the other end of the third capacitor is connected with a number 1 pin of the integrated circuit, a number 7 pin, a number 8 pin, a number 9 pin and a number 12 pin of the integrated circuit are grounded, a number 11 pin of the integrated circuit is connected with a number G pole of the third MOS tube through the fifth resistor, a number S pole of the third MOS tube is grounded, a number D pole of the third MOS tube is connected with one end of the transformer, a number four terminal of the fourth MOS tube is connected with a number D pole of the fourth MOS tube is grounded, and the four terminal of the fourth MOS tube is connected with the output end of the fourth MOS tube is connected with the fourth terminal of the fourth MOS tube.
As still further aspects of the invention: the alternating current output module comprises a second switch, a third switch, a sixth resistor, a load, a first interface, a second interface, a third interface and a fourth interface, one end of the second switch is connected with the output end of the inversion module, one end of the third switch is connected with the output end of the inversion module, the other end of the second switch is connected with the first interface or the second interface, the other end of the third switch is connected with the third interface or the fourth interface, the first interface is connected with the third interface through the sixth resistor, and the second interface is connected with the fourth interface through the load.
As still further aspects of the invention: the delay control module comprises a sixth diode, a seventh resistor, a second potentiometer, a third capacitor, a fifth MOS tube, a third diode and a relay, wherein one end of the seventh resistor is connected with the cathode of the sixth diode, the anode of the sixth diode is connected with the output end of the voltage-stabilizing power supply module, the other end of the seventh resistor is connected with one end of the second potentiometer, the other end of the second potentiometer is connected with one end of the third capacitor and the S electrode of the fifth MOS tube, the other end of the third capacitor is grounded, the G electrode of the fifth MOS tube is connected with the output end of the abnormal protection module, the D electrode of the fifth MOS tube is connected with the cathode of the third diode and one end of the relay, the anode of the third diode is grounded, and the other end of the relay is grounded.
As still further aspects of the invention: the abnormal protection module comprises a voltage transformer, a fourth diode, a fourth capacitor, an eighth resistor, a third potentiometer and a fifth diode, wherein one end of the voltage transformer is grounded, the other end of the voltage transformer is connected with the anode of the fourth diode, the cathode of the fourth diode is connected with one end of the fourth capacitor and one end of the eighth resistor, the other end of the fourth capacitor is grounded, the other end of the eighth resistor is connected with one end of the third potentiometer and the cathode of the fifth diode, the other end of the third potentiometer is grounded, and the anode of the fifth diode is connected with the second input end of the delay control module.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, by arranging the abnormal protection module, the delay control module and improving the alternating current output module, when the circuit is just electrified, the alternating current output module does not initially supply power to the load, voltage supply test operation is performed first, when the abnormal protection module detects that the alternating current output module supplies power normally, the alternating current output module is started to supply power to the load after the delay control module delays, and the inverter circuit detects and processes the output voltage of the inverter before formally supplying power to the load, so that the load is prevented from being damaged by voltage abnormality.
Drawings
Fig. 1 is a schematic diagram of a controllable inverter circuit.
Fig. 2 is a first partial circuit diagram of a controllable inverter circuit.
Fig. 3 is a second partial circuit diagram of a controllable inverter circuit.
Fig. 4 is a circuit diagram of a delay control module.
Fig. 5 is a circuit diagram of the abnormality protection module.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention are included in the protection scope of the present invention.
Referring to fig. 1, a controllable inverter circuit includes:
the power supply module 1 is used for outputting direct-current voltage and supplying the direct-current voltage to the voltage-stabilizing power supply module 2;
the voltage-stabilizing power supply module 2 is used for outputting stable direct-current voltage and supplying the voltage-stabilizing power supply module 3, the inversion module 4 and the delay control module 6;
a clamp module 3 for providing a stable voltage to the inverter module 4;
the inverter module 4 is used for converting direct current into alternating current and supplying the alternating current to the alternating current output module 5;
an ac output module 5 for outputting an ac power to the load X;
the delay control module 6 is used for controlling the closing of the alternating current output module 5 and the load X loop after the circuit is started to delay;
the abnormality protection module 7 is used for detecting whether the voltage of the alternating current output module 5 is abnormal or not when the circuit is started, and disconnecting the delay control module 6 when the voltage is abnormal;
the output of power module 1 connects the input of steady voltage power module 2, and the input of steady voltage power module 2 connects pincers die block 3, inverter module 4's first input, delay control module 6's first input, and inverter module 4's second input is connected to pincers die block 3's output, and AC output module 5's first input is connected to inverter module 4's output, and the input of unusual protection module 7 is connected to AC output module 5's output, and the second input of delay control module 6 is connected to unusual protection module 7's output, and the second input of AC output module 5 is connected to delay control module 6's output.
In this embodiment: referring to fig. 2, the power supply module 1 includes a battery E1 and a first switch S1, wherein a negative electrode of the battery E1 is grounded, a positive electrode of the battery E1 is connected to one end of the first switch S1, and the other end of the first switch S1 is connected to an input end of the regulated power supply module 2.
The battery E1 is used as a power supply to supply voltage to the circuit, the first switch S1 is used as a circuit main switch, and the circuit is started after the first switch S1 is closed.
In another embodiment, the battery E1 may be replaced by another power storage device such as a battery jar.
In this embodiment: referring to fig. 2, the voltage stabilizing power supply module 2 includes a first resistor R1, a first diode D1, a first triode V1, a second triode V2, and a first capacitor C1, wherein one end of the first resistor R1 is connected to a collector of the first triode V1, a collector of the second triode V2, and an output end of the power supply module 1, the other end of the first resistor R1 is connected to a base of the first triode V1 and a negative electrode of the first diode D1, an anode of the first diode D1 is grounded, an emitter of the first triode V1 is connected to a base of the second triode V2, and an emitter of the second triode V2 is connected to one end of the first capacitor C1, an input end of the clamp module 3, a first input end of the inverter module 4, and a first input end of the delay control module 6, and the other end of the first capacitor C1 is grounded.
The first diode D1 is used as a voltage stabilizing diode, the upper voltage of the voltage stabilizing diode is stable, and after the voltage stabilizing diode is amplified by the first triode V1 and the second triode V2, the emitter of the second triode V2 outputs a stable voltage VCC to supply power for a subsequent circuit.
In another embodiment, the first capacitor C1 may be omitted, where the first capacitor C1 is used for filtering processing, so as to ensure that the voltage is gentle.
In this embodiment: referring to fig. 3, the clamping module 3 includes a second resistor R2, a second diode D2, and a second capacitor C2, wherein one end of the second resistor R2 is connected to the output end of the voltage-stabilizing power supply module 2, the other end of the second resistor R2 is connected to the negative electrode of the second diode D2, one end of the second capacitor C2, and the second input end of the inverter module 4, the positive electrode of the second diode D2 is grounded, and the other end of the second capacitor C2 is grounded.
The second diode D2 acts as a zener diode, with a constant voltage across it, supplying power to the integrated circuit U1.
In another embodiment, the second resistor R2 may be omitted, and the second resistor R2 is used for current limiting to prevent the integrated circuit U1 from being damaged by excessive current.
In this embodiment: referring to fig. 3, the inverter module 4 includes an integrated circuit U1, a third capacitor C3, a third resistor R3, a first potentiometer RP1, a fourth resistor R4, a fifth resistor R5, a third MOS tube V3, a fourth MOS tube V4, and a transformer W, where the model of the integrated circuit U1 is CD4047, pins No. 4, no. 5, no. 6, and No. 14 of the integrated circuit U1 are connected to the output end of the voltage clamping module 3, pin No. 2 of the integrated circuit U1 is connected to one end of the third resistor R3, the other end of the third resistor R3 is connected to one end of the first potentiometer RP1, the other end of the first potentiometer RP1 is connected to pin No. 3 of the integrated circuit U1, one end of the third capacitor C3, the other end of the third capacitor C3 is connected to pin No. 1 of the integrated circuit U1, pin No. 7, pin No. 8, pin No. 12 is grounded, pin No. 11 of the integrated circuit U1 is connected to the pole G of the fourth tube V4 through the fifth resistor R5, pin No. 10 is connected to the pole G of the fourth tube V4, and the other end of the fourth resistor is connected to the voltage stabilizing module V4 through the fourth resistor V4, the other end of the fourth resistor V4 is connected to the voltage stabilizing tube V of the fourth resistor W is connected to the voltage stabilizing module, and the other end of the fourth resistor V4 is connected to the voltage stabilizing module is connected to the voltage stabilizing end of the fourth MOS.
CD4047 is a low power CMOS steady state/monostable flip-flop. The non-steady-state multivibrator is used as a non-steady-state multivibrator, a pin No. 10 and a pin No. 11 generate two complementary pulse signals, the third MOS tube V3 and the fourth MOS tube V4 are controlled to be conducted at intervals, alternating current is formed at the input end of the transformer W, and 220V alternating current is output after being amplified by the transformer W.
In another embodiment: the first potentiometer RP1 may be omitted, where the first potentiometer RP1 is used to adjust the duty ratio of the pulse signal output by the pin 10 and the pin 11 of the integrated circuit U1 in unit time, and by adjusting the first potentiometer RP1, the charge and discharge speed of the third capacitor C3 is changed, and the output pulse signal is changed.
In this embodiment: referring to fig. 3, the ac output module 5 includes a second switch S2, a third switch S3, a sixth resistor, a load X, a first interface a, a second interface B, a third interface C, and a fourth interface D, one end of the second switch S2 is connected to the output end of the inverter module 4, one end of the third switch S3 is connected to the output end of the inverter module 4, the other end of the second switch S2 is connected to the first interface a or the second interface B, the other end of the third switch S3 is connected to the third interface C or the fourth interface D, the first interface a is connected to the third interface C through the sixth resistor, and the second interface B is connected to the fourth interface D through the load X.
Initially, the second switch S2 is connected to the first interface a, the third switch S3 is connected to the third interface C, and the generated ac voltage is supplied to the sixth resistor; after the detection and control of the abnormality protection module 7 and the delay control module 6, the generated alternating voltage is confirmed to be normal, at the moment, the second switch S2 is connected with the second interface B, the third switch S3 is connected with the fourth interface D, and the alternating current supplies power for the load X.
In another embodiment: a resistor may be added to the power supply loop for current limiting.
In this embodiment: referring to fig. 4, the delay control module 6 includes a sixth diode D6, a seventh resistor R7, a second potentiometer RP2, a third capacitor C3, a fifth MOS transistor V5, a third diode D3, and a relay J, one end of the seventh resistor R7 is connected to the negative electrode of the sixth diode D6, the positive electrode of the sixth diode D6 is connected to the output end of the regulated power supply module 2, the other end of the seventh resistor R7 is connected to one end of the second potentiometer RP2, the other end of the second potentiometer RP2 is connected to one end of the third capacitor C3 and the S electrode of the fifth MOS transistor V5, the other end of the third capacitor C3 is grounded, the G electrode of the fifth MOS transistor V5 is connected to the output end of the abnormality protection module 7, the D electrode of the fifth MOS transistor V5 is connected to the negative electrode of the third diode D3 and one end of the relay J, the positive electrode of the third diode D3 is grounded, and the other end of the relay J is grounded.
After the first switch S1 is closed, the delay control module 6 is powered on to work, so as to charge the capacitor C3 (i.e. delay time), and when the relay J works, the second switch S2 is connected to the second interface B and the third switch S3 is connected to the fourth interface D, and the alternating current supplies power to the load X. During the charging process of the capacitor C3, when the abnormality protection module 7 detects that the output alternating current is abnormal, the fifth MOS transistor V5 (PMOS) is controlled to be turned off. The charging time (the starting delay time of the relay J) of the third capacitor C3 can be adjusted by adjusting the resistance value of the second potentiometer RP2, and the delay time is longer.
In another embodiment: the sixth diode D6 can be omitted, the sixth diode D6 is used as a light-emitting diode, the working condition of the circuit of the delay control module 6 can be indicated, and the circuit is extinguished to prompt a user when the alternating current of the alternating current output module 5 is abnormal.
In this embodiment: referring to fig. 5, the abnormality protection module 7 includes a voltage transformer Y, a fourth diode D4, a fourth capacitor C4, an eighth resistor R8, a third potentiometer RP3, and a fifth diode D5, where one end of the voltage transformer Y is grounded, the other end of the voltage transformer Y is connected to the positive electrode of the fourth diode D4, the negative electrode of the fourth diode D4 is connected to one end of the fourth capacitor C4 and one end of the eighth resistor R8, the other end of the fourth capacitor C4 is grounded, the other end of the eighth resistor R8 is connected to one end of the third potentiometer RP3 and the negative electrode of the fifth diode D5, the other end of the third potentiometer RP3 is grounded, and the positive electrode of the fifth diode D5 is connected to the second input end of the delay control module 6.
The voltage transformer YY is arranged at the loop where the sixth resistor is located, detects the voltage on the sixth resistor, and when the circuit fails due to short circuit and other reasons, and the voltage is large, the voltage output by the voltage transformer YY is large, rectified by the fourth diode D4, filtered by the fourth capacitor C4, divided by the eighth resistor R8 and the third potentiometer RP3, and the voltage on the third potentiometer RP3 is large enough to conduct the fifth diode D5 (zener diode), provide high level for the fifth MOS tube V5, and control the disconnection of the fifth MOS tube V5. When the output alternating current is regulated through the first potentiometer RP1, the third potentiometer RP3 needs to be correspondingly regulated, so that the problem that the protection cannot be started by the abnormal protection module 7 based on the voltage cause after the output alternating current changes is avoided.
In another embodiment: the third potentiometer RP3 may be replaced with a common resistor, so that the abnormality protection module 7 may not be activated after the resistance value of the first potentiometer RP1 is adjusted to change the magnitude of the output ac power.
The working principle of the invention is as follows: the power supply module 1 outputs direct-current voltage and supplies the direct-current voltage to the voltage-stabilizing power supply module 2; the voltage-stabilizing power supply module 2 outputs stable direct-current voltage and supplies the voltage-stabilizing direct-current voltage to the clamping module 3, the inversion module 4 and the delay control module 6; the clamping module 3 provides stable voltage for the inversion module 4; the inversion module 4 converts direct current into alternating current and supplies the alternating current to the alternating current output module 5; the alternating current output module 5 outputs alternating current to supply the load X; the delay control module 6 controls the AC output module 5 and the load X loop to be closed after the circuit is started to delay; when the circuit of the abnormality protection module 7 is started, whether the voltage of the alternating current output module 5 is abnormal or not is detected, and the delay control module 6 is disconnected when the voltage is abnormal.
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 (8)
1. A controllable inverter circuit, characterized by:
the controllable inverter circuit includes:
the power supply module is used for outputting direct-current voltage and supplying the direct-current voltage to the voltage-stabilizing power supply module;
the voltage-stabilizing power supply module is used for outputting stable direct-current voltage and supplying the stable direct-current voltage to the clamping module, the inversion module and the delay control module;
the clamping module is used for providing stable voltage for the inversion module;
the inversion module is used for converting direct current into alternating current and supplying the alternating current to the alternating current output module;
the alternating current output module is used for outputting alternating current to supply to a load;
the delay control module is used for controlling the closing of the alternating current output module and the load loop after the circuit is started to delay;
the abnormal protection module is used for detecting whether the voltage of the alternating current output module is abnormal or not when the circuit is started, and disconnecting the delay control module when the voltage of the alternating current output module is abnormal;
the output end of the power supply module is connected with the input end of the voltage-stabilizing power supply module, the output end of the voltage-stabilizing power supply module is connected with the input end of the clamping module, the first input end of the inversion module and the first input end of the delay control module, the output end of the clamping module is connected with the second input end of the inversion module, the output end of the inversion module is connected with the first input end of the alternating current output module, the output end of the alternating current output module is connected with the input end of the abnormal protection module, the output end of the abnormal protection module is connected with the second input end of the delay control module, and the output end of the delay control module is connected with the second input end of the alternating current output module.
2. The controllable inverter circuit of claim 1, wherein the power supply module comprises a battery, a first switch, a negative electrode of the battery is grounded, a positive electrode of the battery is connected to one end of the first switch, and the other end of the first switch is connected to an input end of the regulated power supply module.
3. The controllable inverter circuit of claim 1, wherein the voltage stabilizing power supply module comprises a first resistor, a first diode, a first triode, a second triode and a first capacitor, one end of the first resistor is connected with a collector of the first triode, a collector of the second triode and an output end of the power supply module, the other end of the first resistor is connected with a base of the first triode and a cathode of the first diode, an anode of the first diode is grounded, an emitter of the first triode is connected with a base of the second triode, an emitter of the second triode is connected with one end of the first capacitor, an input end of the clamping module, a first input end of the inversion module and a first input end of the delay control module, and the other end of the first capacitor is grounded.
4. The controllable inverter circuit of claim 1, wherein the clamp module comprises a second resistor, a second diode, and a second capacitor, one end of the second resistor is connected to the output end of the regulated power supply module, the other end of the second resistor is connected to the negative electrode of the second diode, one end of the second capacitor, and the second input end of the inverter module, the positive electrode of the second diode is grounded, and the other end of the second capacitor is grounded.
5. The controllable inverter circuit of claim 1, wherein the inverter module comprises an integrated circuit, a third capacitor, a third resistor, a first potentiometer, a fourth resistor, a fifth resistor, a third MOS transistor, a fourth MOS transistor, and a transformer, the model of the integrated circuit is CD4047, the number 4 pin, the number 5 pin, the number 6 pin, and the number 14 pin of the integrated circuit are connected to the output terminal of the voltage clamping module, the number 2 pin of the integrated circuit is connected to one end of the third resistor, the other end of the third resistor is connected to one end of the first potentiometer, the other end of the first potentiometer is connected to the number 3 pin of the integrated circuit, one end of the third capacitor, the other end of the third capacitor is connected to the number 1 pin of the integrated circuit, the number 7 pin, the number 8 pin, the number 9 pin of the integrated circuit are connected to the ground through the fifth resistor, the number 11 pin of the integrated circuit is connected to the G pole of the fourth MOS transistor, the S pole of the third MOS transistor is connected to the ground, the S pole of the fourth MOS transistor is connected to the ground, the other end of the fourth MOS transistor is connected to the ground, the fourth pole of the fourth MOS transistor is connected to the D pole of the fourth resistor is connected to the fourth pole of the fourth MOS transistor, the fourth pole is connected to the third end of the fourth resistor is connected to the output terminal of the transformer, and the three voltage regulator is connected to the output terminal of the transformer.
6. The controllable inverter circuit of claim 1, wherein the ac output module comprises a second switch, a third switch, a sixth resistor, a load, a first interface, a second interface, a third interface, and a fourth interface, one end of the second switch is connected to the output end of the inverter module, one end of the third switch is connected to the output end of the inverter module, the other end of the second switch is connected to the first interface or the second interface, the other end of the third switch is connected to the third interface or the fourth interface, the first interface is connected to the third interface through the sixth resistor, and the second interface is connected to the fourth interface through the load.
7. The controllable inverter circuit of claim 6, wherein the delay control module comprises a sixth diode, a seventh resistor, a second potentiometer, a third capacitor, a fifth MOS transistor, a third diode and a relay, one end of the seventh resistor is connected with the negative electrode of the sixth diode, the positive electrode of the sixth diode is connected with the output end of the regulated power supply module, the other end of the seventh resistor is connected with one end of the second potentiometer, the other end of the second potentiometer is connected with one end of the third capacitor and the S electrode of the fifth MOS transistor, the other end of the third capacitor is grounded, the G electrode of the fifth MOS transistor is connected with the output end of the abnormality protection module, the D electrode of the fifth MOS transistor is connected with the negative electrode of the third diode and one end of the relay, the positive electrode of the third diode is grounded, and the other end of the relay is grounded.
8. The controllable inverter circuit of claim 1 or 7, wherein the abnormality protection module comprises a voltage transformer, a fourth diode, a fourth capacitor, an eighth resistor, a third potentiometer and a fifth diode, one end of the voltage transformer is grounded, the other end of the voltage transformer is connected to the positive electrode of the fourth diode, the negative electrode of the fourth diode is connected to one end of the fourth capacitor and one end of the eighth resistor, the other end of the fourth capacitor is grounded, the other end of the eighth resistor is connected to one end of the third potentiometer and the negative electrode of the fifth diode, the other end of the third potentiometer is grounded, and the positive electrode of the fifth diode is connected to the second input end of the delay control module.
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| CN202310311645.6A CN116317660B (en) | 2023-03-28 | 2023-03-28 | Controllable inverter circuit |
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| CN116914750A (en) * | 2023-09-12 | 2023-10-20 | 联合瓦特技术有限公司 | Power distribution cabinet safety protection circuit |
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|---|---|
| CN116317660B (en) | 2023-10-20 |
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