CN219833785U - Input self-adaptive regulation charger - Google Patents

Input self-adaptive regulation charger Download PDF

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Publication number
CN219833785U
CN219833785U CN202320331240.4U CN202320331240U CN219833785U CN 219833785 U CN219833785 U CN 219833785U CN 202320331240 U CN202320331240 U CN 202320331240U CN 219833785 U CN219833785 U CN 219833785U
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resistor
module
diode
input
output
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周彬兵
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Shanghai Zhenyou Electronic Technology Co ltd
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Shanghai Zhenyou Electronic Technology Co ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

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Abstract

The utility model discloses an input self-adaptive regulation charger, which relates to the technical field of power circuits and comprises a power input module, a power output module and a power output module, wherein the power input module is used for electric energy input protection; the polarity self-adaptive adjusting module is used for polarity detection and polarity inversion; the starting control module is used for delaying starting; the sampling comparison module is used for sampling and comparing the electric energy; the output adjusting module is used for self-adapting power adjustment; the output detection module is used for outputting electric energy sampling, threshold comparison and signal self-locking; and the protection control module is used for overvoltage protection control. The input self-adaptive regulation charger performs overvoltage primary protection control on input electric energy, detects the polarity of the input electric energy, performs polarity inversion when the polarities are opposite, performs delay control and current-limiting protection control on the input electric energy, improves the safety of a circuit, performs power self-adaptive regulation and output overvoltage protection on the input electric energy, and improves the working efficiency of the circuit.

Description

Input self-adaptive regulation charger
Technical Field
The utility model relates to the technical field of power supply circuits, in particular to an input self-adaptive regulation charger.
Background
Along with development of technology and technology, globalization of a power supply market is achieved, a charger is used as intermediate equipment connected with a power supply and can provide required stable electric energy for the power supply, most of existing chargers adopt a switching power supply mode to charge and control the power supply with a certain charging range, polarity cannot be applicable when polarity of input electric energy is turned over, and good self-adaptive adjustment and self-adaptive protection functions cannot be achieved on the input electric energy, so that improvement is needed.
Disclosure of Invention
The embodiment of the utility model provides an input self-adaptive regulation charger to solve the problems in the background technology.
According to an embodiment of the present utility model, there is provided an input adaptive adjustment charger including: the device comprises a power input module, a polarity self-adaptive adjusting module, a starting control module, a sampling comparison module, an output adjusting module, an output detecting module and a protection control module;
the power input module is used for inputting electric energy and performing input safety protection control;
the polarity self-adaptive adjusting module is connected with the power input module and used for detecting the polarity of input electric energy and controlling the electric energy output by the power input module to carry out polarity inversion;
the starting control module is connected with the polarity self-adaptive adjusting module and is used for receiving the electric energy output by the polarity self-adaptive adjusting module and controlling the transmission of the electric energy in a delay mode;
the sampling comparison module is connected with the starting control module and used for detecting the electric energy output by the starting control module and comparing the electric energy with a set voltage threshold value and outputting a comparison signal;
the output adjusting module is connected with the starting control module and is used for receiving the electric energy output by the starting control module and adjusting the input power of the electric energy through the regulator;
the output detection module is connected with the output adjustment module and is used for sampling the electric energy output by the output adjustment module and carrying out threshold comparison and signal self-locking control on the sampled signals;
the protection control module is connected with the starting control module, the sampling comparison module and the output detection module and is used for carrying out logic operation on the signals output by the output detection module and the signals output by the sampling comparison module through the logic circuit and controlling the starting control module to work.
Compared with the prior art, the utility model has the beneficial effects that: the input self-adaptive regulation charger provided by the utility model adopts the power input module to perform primary protection control on input overvoltage, the polarity of the input electric energy is detected through the polarity self-adaptive regulation module, polarity inversion is performed when the polarities are opposite, input self-adaptive safety is provided, the input electric energy is controlled in a delayed mode through the starting control module, damage to a circuit by instantaneous voltage is avoided, the input electric energy is subjected to power self-adaptive regulation through the output regulation module, current and voltage regulation of the input electric energy are realized, the input electric energy and the regulated electric energy are detected through the sampling comparison module and the output detection module, the protection is performed by the protection control module when the input electric energy and the regulated electric energy are in fault, and the regulation efficiency and the safety index of the circuit are improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments of the present utility model will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, 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 an input adaptive adjustment charger according to an embodiment of the present utility model.
Fig. 2 is a circuit diagram of an input adaptive adjustment charger provided by an example of the present utility model.
Fig. 3 is a circuit diagram of connection between the output detection module, the sampling comparison module and the protection control module provided in the embodiment of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Embodiment 1 referring to fig. 1, an input adaptive adjustment charger includes: the device comprises a power input module 1, a polarity self-adaptive adjustment module 2, a starting control module 3, a sampling comparison module 4, an output adjustment module 5, an output detection module 6 and a protection control module 7;
specifically, the power input module 1 is used for inputting electric energy and performing input safety protection control;
the polarity self-adaptive adjusting module 2 is connected with the power input module 1 and is used for detecting the polarity of input electric energy and controlling the electric energy output by the power input module 1 to perform polarity inversion;
the starting control module 3 is connected with the polarity self-adaptive adjustment module 2 and is used for receiving the electric energy output by the polarity self-adaptive adjustment module 2 and controlling the transmission of the electric energy in a delay mode;
the sampling comparison module 4 is connected with the starting control module 3 and is used for detecting the electric energy output by the starting control module 3 and comparing the electric energy with a set voltage threshold value and outputting a comparison signal;
the output adjusting module 5 is connected with the starting control module 3 and is used for receiving the electric energy output by the starting control module 3 and adjusting the input power of the electric energy through the regulator U1;
the output detection module 6 is connected with the output adjustment module 5 and is used for sampling the electric energy output by the output adjustment module 5 and carrying out threshold comparison and signal self-locking control on the sampled signals;
the protection control module 7 is connected with the starting control module 3, the sampling comparison module 4 and the output detection module 6, and is used for carrying out logic operation on the signal output by the output detection module 6 and the signal output by the sampling comparison module 4 through a logic circuit and controlling the working of the starting control module 3.
In a specific embodiment, the power input module 1 may use a power circuit to provide the required power, and use an overvoltage protection circuit to perform input voltage protection; the polarity self-adaptive adjusting module 2 can adopt a polarity detecting circuit, and a relay control circuit finishes the polarity inversion of the electric energy; the starting control module 3 can jointly realize delay control of a switch and current-limiting protection control of input electric energy by adopting a relay control circuit, a delay circuit and a current-limiting protection circuit; the sampling comparison module 4 can adopt a resistor voltage division voltage and threshold comparison circuit; the output adjusting module 5 can adopt an output power tube adjustable circuit; the output detection module 6 can adopt a voltage-stabilizing tube breakdown detection circuit and a self-locking control circuit to complete threshold detection and signal self-locking control; the protection control module 7 may adopt a logic circuit and a triode switch circuit to control the start control module 3.
In embodiment 2, referring to fig. 2 and 3, the power input module 1 includes an input port, a first varistor RV1, a second varistor RV2, a first resistor R1, and a second resistor R2;
specifically, the first end of the input port is connected to one end of the first piezoresistor RV1 and one end of the first resistor R1, the second end of the input port is connected to one end of the second piezoresistor RV2 and one end of the second resistor R2, and the other end of the first piezoresistor RV1 is connected to the other end of the second piezoresistor RV2, the other end of the first resistor R1 and the other end of the second resistor R2.
Further, the polarity adaptive adjustment module 2 includes a first capacitor C1, a third resistor R3, a first diode D1, a fourth resistor R4, a first relay K1, a fifth diode D5, and a first relay switch K1-1;
specifically, one end of the first capacitor C1 and one end of the third resistor R3 are both connected to the second end of the input port, the other end of the first capacitor C1 and the other end of the third resistor R3 are both connected to the anode of the first diode D1, the cathode of the first diode D1 is connected to one end of the first relay K1 and the cathode of the fifth diode D5 through the fourth resistor R4, the other end of the first relay K1 and the anode of the fifth diode D5 are both grounded, the first end and the second end of the first relay switch K1-1 are respectively connected to the first end and the second end of the input port, the third end of the first relay switch K1-1 is connected to the sixth end of the first relay switch K1-1, and the fourth end of the first relay switch K1-1 is connected to the fifth end of the first relay switch K1-1.
In a specific embodiment, the first capacitor C1 and the third resistor R3 form a resistor-capacitor circuit for reducing the input electric energy; the first diode D1 is configured to be turned on when the positive electrode is input; the first relay K1 is used for controlling the operation of the first relay switch K1-1, and the first relay K1 can adopt a double-pole double-throw switch.
Further, the starting control module 3 includes a second diode D2, a fifth resistor R5, a second relay K2, a third diode D3, a second capacitor C2, a second relay switch K2-1, a fourth diode D4, and a sixth resistor R6;
specifically, the anode of the second diode D2, the anode of the fourth diode D4 and the first end of the second relay switch K2-1 are all connected to the fourth end of the first relay switch K1-1, the cathode of the second diode D2 is connected to the protection control module 7 and is connected to one end of the second relay K2, the cathode of the third diode D3 and one end of the second capacitor C2 through the fifth resistor R5, the other end of the second capacitor C2, the anode of the third diode D3 and the other end of the second relay K2 are all grounded, and the cathode of the fourth diode D4 is connected to the second end of the second relay switch K2-1 through the sixth resistor R6.
In a specific embodiment, the second relay switch K2-1 is a normally open contact and is controlled by the second relay K2; the fourth diode D4 and the sixth resistor R6 form a current-limiting protection circuit; the second capacitor C2 is a delay capacitor, and the specific model is not limited.
Further, the sampling comparison module 4 includes a fourth capacitor C4, a ninth resistor R9, a tenth resistor R10, a voltage threshold, a first comparator A1, and a sixth diode D6;
specifically, one end of the fourth capacitor C4 and one end of the ninth resistor R9 are both connected to the second end of the second relay switch K2-1, the other end of the ninth resistor R9 is connected to the in-phase end of the first comparator A1 and the cathode of the sixth diode D6, and is connected to the other end of the fourth capacitor C4, the sixth end of the first relay switch K1-1 and the ground end through the tenth resistor R10, the inverting end of the first comparator A1 is connected to the voltage threshold, and the output end of the first comparator A1 is connected to the anode of the sixth diode D6 and the protection control module 7.
In a specific embodiment, the first comparator A1 may be an LM393 comparator, and the voltage threshold is an overvoltage limit for starting the control module 3 to output electric energy; the sixth diode D6 is used for controlling the self-locking operation of the first comparator A1.
Further, the output adjusting module 5 includes an eleventh resistor R11, a first potentiometer RP1, a fifth capacitor C5, a regulator U1, a twelfth resistor R12, an indicator LED, a second potentiometer RP1, an eighth diode D8, a thirteenth resistor R13, a first power tube Q1, and an output port;
specifically, one end of the eleventh resistor R11, the drain electrode of the first power tube Q1, the fourth end and the eighth end of the regulator U1 are all connected to the second end of the second diode D2, the other end of the eleventh resistor R11 is connected to the seventh end of the regulator U1 and the slide end of the first potentiometer RP1, and is connected to one end of the fifth capacitor C5, the second end and the sixth end of the regulator U1 through the first potentiometer RP1, the third end of the regulator U1 is connected to the anode of the eighth diode D8 and is connected to the anode of the indicator lamp LED through the twelfth resistor R12, the fifth end of the regulator U1 is connected to the slide end and the ground end of the second potentiometer RP1 through the second potentiometer RP1, the other end of the fifth capacitor C5, the first end of the regulator U1, the cathode of the indicator lamp LED, and one end of the output port are all grounded, the cathode of the eighth diode D8 is connected to the gate of the first power tube Q1 through the thirteenth resistor R13, and the other end of the first power tube Q1 is connected to the source of the output port.
In a specific embodiment, the regulator U1 may be an NE555 chip, and controls the regulating operation of the first power tube Q1 through the output pulse signal; the first power tube Q1 may be an N-channel enhancement MOS tube.
Further, the output detection module 6 includes a fourteenth resistor R14, a first voltage stabilizing tube VD1, a seventh diode D7, and a signal self-locking control circuit;
specifically, the signal self-locking control circuit is used for performing high-level self-locking control on the signal after threshold comparison;
one end of the fourteenth resistor R14 is connected with the cathode of the eighth diode D8, the other end of the fourteenth resistor R14 is connected with the cathode of the first voltage stabilizing tube VD1, the anode of the first voltage stabilizing tube VD1 is connected with the anode of the seventh diode D7, and the cathode of the seventh diode D7 is connected with the protection control module 7 through a signal self-locking control circuit.
In a specific embodiment, the first voltage stabilizing tube VD1 is used for detecting the electric energy condition regulated by the output regulating module 5; the signal self-locking control circuit can adopt, but is not limited to, triode self-locking circuits, logic self-locking circuits and other self-locking circuits for high-level self-locking control of signals; the second potentiometer RP1 is used for adjusting the pulse signal output by the adjustment so as to adjust the power of the electric energy.
Further, the protection control module 7 includes a fifteenth resistor R15, a sixteenth resistor R16, a logic chip U2, a seventeenth resistor R17, an eighteenth resistor R18, and a first switching transistor VT1;
specifically, one end of the fifteenth resistor R15 and one end of the sixteenth resistor R16 are respectively connected to the output end of the first comparator A1 and the signal self-locking control circuit, the other end of the fifteenth resistor R15 and the other end of the sixteenth resistor R16 are respectively connected to the first input end and the second input end of the logic chip U2, the output end of the logic chip U2 is connected to the base electrode of the first switching tube VT1 through the seventeenth resistor R17, the collector electrode of the first switching tube VT1 is connected to the cathode of the second diode D2 through the eighteenth resistor R18, and the emitter electrode of the first switching tube VT1 is connected to the ground.
In a specific embodiment, the logic chip U2 may be an or logic chip; the first switch tube VT1 may be an NPN transistor, which is configured to control the operation of the second relay K2.
According to the input self-adaptive regulation charger, an input port is connected with required electric energy, voltage protection is carried out by a first piezoresistor RV1, a second piezoresistor RV2, a first resistor R1 and a second resistor R2, when the polarity of the input electric energy is correct, the second end of the input port is negative voltage, when the polarity is reversed, the second end of the input port is positive electrode, so that a first diode D1 is conducted, a first relay K1 works, so that the first relay K1-1 works, a first end of the first relay K1-1 is connected with a third end, the second end of the first relay K1-1 is connected with a sixth end, polarity inversion is completed, the input electric energy is controlled by a start control module 3, a fourth diode D4 is connected with a sixth capacitor at the moment, transient voltage is consumed, after time delay, the second relay K2 controls the second relay K2-1 to be closed, power is supplied to an output regulation module 5, the output regulation module 5 controls the conduction degree of a first power tube Q1 through a regulator U1, the electric energy of the output port is controlled, the first relay K1-1 is connected with a third end, the second end of the second relay is connected with a fourth resistor R9, the first resistor R1 is connected with a fourth resistor VD 2, the first resistor VD1 is controlled to be conducted, the first end is controlled to be connected with a voltage stabilizing resistor VD1, the first resistor VD1 is controlled to be conducted, the voltage is controlled to be conducted, and the voltage is controlled to be conducted by a voltage-stabilizing switch, and a voltage is controlled to be conducted to be respectively.
This input self-adaptation adjusts charger adopts power input module 1 to carry out preliminary protection control to the input excessive pressure, detect the electric energy polarity of input through polarity self-adaptation adjustment module 2, carry out polarity upset when polarity is opposite, provide the security of input self-adaptation, delay control is carried out to the electric energy of input through start control module 3, help avoiding the damage of instantaneous voltage to the circuit, and carry out power self-adaptation adjustment by output adjustment module 5 to the electric energy of input, realize the electric current and the voltage regulation of input electric energy, detect the electric energy of input and the electric energy after adjusting through sampling comparison module 4 and output detection module 6, and protect when input electric energy and adjustment electric energy trouble by protection control module 7, improve the regulation efficiency and the security index of circuit.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model 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 utility model 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. An input self-adaptive regulation charger is characterized in that,
the input adaptive adjustment charger includes: the device comprises a power input module, a polarity self-adaptive adjusting module, a starting control module, a sampling comparison module, an output adjusting module, an output detecting module and a protection control module;
the power input module is used for inputting electric energy and performing input safety protection control;
the polarity self-adaptive adjusting module is connected with the power input module and used for detecting the polarity of input electric energy and controlling the electric energy output by the power input module to carry out polarity inversion;
the starting control module is connected with the polarity self-adaptive adjusting module and is used for receiving the electric energy output by the polarity self-adaptive adjusting module and controlling the transmission of the electric energy in a delay mode;
the sampling comparison module is connected with the starting control module and used for detecting the electric energy output by the starting control module and comparing the electric energy with a set voltage threshold value and outputting a comparison signal;
the output adjusting module is connected with the starting control module and is used for receiving the electric energy output by the starting control module and adjusting the input power of the electric energy through the regulator;
the output detection module is connected with the output adjustment module and is used for sampling the electric energy output by the output adjustment module and carrying out threshold comparison and signal self-locking control on the sampled signals;
the protection control module is connected with the starting control module, the sampling comparison module and the output detection module and is used for carrying out logic operation on the signals output by the output detection module and the signals output by the sampling comparison module through the logic circuit and controlling the starting control module to work.
2. The input adaptive regulation charger of claim 1 wherein said power input module comprises an input port, a first varistor, a second varistor, a first resistor, a second resistor;
the first end of the input port is connected with one end of the first piezoresistor and one end of the first resistor, the second end of the input port is connected with one end of the second piezoresistor and one end of the second resistor, and the other end of the first piezoresistor is connected with the other end of the second piezoresistor, the other end of the first resistor and the other end of the second resistor.
3. The input adaptive regulation charger of claim 2 wherein said polarity adaptive regulation module comprises a first capacitor, a third resistor, a first diode, a fourth resistor, a first relay, a fifth diode, a first relay switch;
one end of the first capacitor and one end of the third resistor are connected with the second end of the input port, the other end of the first capacitor and the other end of the third resistor are connected with the anode of the first diode, the cathode of the first diode is connected with one end of the first relay and the cathode of the fifth diode through the fourth resistor, the other end of the first relay and the anode of the fifth diode are grounded, the first end and the second end of the first relay switch are respectively connected with the first end and the second end of the input port, the third end of the first relay switch is connected with the sixth end of the first relay switch, and the fourth end of the first relay switch is connected with the fifth end of the first relay switch.
4. An input adaptive regulation charger according to claim 3, wherein the start control module comprises a second diode, a fifth resistor, a second relay, a third diode, a second capacitor, a second relay switch, a fourth diode, a sixth resistor;
the anode of the second diode, the anode of the fourth diode and the first end of the second relay switch are all connected with the fourth end of the first relay switch, the cathode of the second diode is connected with the protection control module and is connected with one end of the second relay, the cathode of the third diode and one end of the second capacitor through a fifth resistor, the other end of the second capacitor, the anode of the third diode and the other end of the second relay are all grounded, and the cathode of the fourth diode is connected with the second end of the second relay switch through a sixth resistor.
5. The input adaptive regulation charger of claim 4 wherein said sample comparison module comprises a fourth capacitor, a ninth resistor, a tenth resistor, a voltage threshold, a first comparator, a sixth diode;
one end of the fourth capacitor and one end of the ninth resistor are both connected with the second end of the second relay switch, the other end of the ninth resistor is connected with the in-phase end of the first comparator and the cathode of the sixth diode and is connected with the other end of the fourth capacitor, the sixth end of the first relay switch and the ground end through the tenth resistor, the inverting end of the first comparator is connected with a voltage threshold, and the output end of the first comparator is connected with the anode of the sixth diode and the protection control module.
6. The input adaptive regulation charger of claim 5 wherein said output regulation module comprises an eleventh resistor, a first potentiometer, a fifth capacitor, a regulator, a twelfth resistor, an indicator light, a second potentiometer, an eighth diode, a thirteenth resistor, a first power tube, an output port;
one end of the eleventh resistor, the drain electrode of the first power tube, the fourth end and the eighth end of the regulator are all connected with the second end of the second diode, the other end of the eleventh resistor is connected with the seventh end of the regulator and the sliding blade end of the first potentiometer, the other end of the eleventh resistor is connected with one end of the fifth capacitor, the second end and the sixth end of the regulator through the first potentiometer, the third end of the regulator is connected with the anode of the eighth diode and the anode of the indicator lamp through the twelfth resistor, the fifth end of the regulator is connected with the sliding blade end and the ground end of the second potentiometer through the second potentiometer, the other end of the fifth capacitor, the first end of the regulator, the cathode of the indicator lamp and one end of the output port are all grounded, the cathode of the eighth diode is connected with the grid electrode of the first power tube through the thirteenth resistor, and the source electrode of the first power tube is connected with the other end of the output port.
7. The input adaptive regulation charger of claim 6 wherein said output detection module comprises a fourteenth resistor, a first voltage regulator tube, a seventh diode, a signal latching control circuit;
the signal self-locking control circuit is used for performing high-level self-locking control on the signal after threshold comparison;
one end of the fourteenth resistor is connected with the cathode of the eighth diode, the other end of the fourteenth resistor is connected with the cathode of the first voltage stabilizing tube, the anode of the first voltage stabilizing tube is connected with the anode of the seventh diode, and the cathode of the seventh diode is connected with the protection control module through the signal self-locking control circuit.
8. The input adaptive regulation charger of claim 7 wherein said protection control module comprises a fifteenth resistor, a sixteenth resistor, a logic chip, a seventeenth resistor, an eighteenth resistor, a first switching tube;
one end of the fifteenth resistor and one end of the sixteenth resistor are respectively connected with the output end of the first comparator and the signal self-locking control circuit, the other end of the fifteenth resistor and the other end of the sixteenth resistor are respectively connected with the first input end and the second input end of the logic chip, the output end of the logic chip is connected with the base electrode of the first switching tube through the seventeenth resistor, the collector electrode of the first switching tube is connected with the cathode of the second diode through the eighteenth resistor, and the emitter electrode of the first switching tube is connected with the ground end.
CN202320331240.4U 2023-02-28 2023-02-28 Input self-adaptive regulation charger Active CN219833785U (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117559610A (en) * 2024-01-10 2024-02-13 云南山高新能源有限公司 Emergency protection system for electric automobile during high-voltage charging

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117559610A (en) * 2024-01-10 2024-02-13 云南山高新能源有限公司 Emergency protection system for electric automobile during high-voltage charging
CN117559610B (en) * 2024-01-10 2024-03-19 云南山高新能源有限公司 Emergency protection system for electric automobile during high-voltage charging

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