CN216851397U - Charger circuit board circuit - Google Patents
Charger circuit board circuit Download PDFInfo
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- CN216851397U CN216851397U CN202220348511.2U CN202220348511U CN216851397U CN 216851397 U CN216851397 U CN 216851397U CN 202220348511 U CN202220348511 U CN 202220348511U CN 216851397 U CN216851397 U CN 216851397U
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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
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a charger circuit board circuit relates to charging circuit technical field, include: the main power supply control module is used for providing mains voltage and carrying out voltage conversion; the solar control module is used for converting solar energy into electric energy and performing voltage conversion; the voltage conversion module is used for carrying out voltage conversion on the input voltage; the rechargeable battery module is used for storing energy; the anti-reverse connection protection module is used for detecting whether the reverse connection phenomenon occurs to the rechargeable battery module; and the alarm module is used for detecting the state of the rechargeable battery module and giving an alarm. The utility model discloses charger circuit board circuit adopts the power supply means of this charger circuit board circuit of solar control module extension, through the voltage threshold value with the settlement do the comparison and output feedback signal, carries out voltage conversion through feedback signal control electric energy, improves the MPPT function of solar energy to adopt and prevent reverse-connection protection module and avoid the battery to appear the reverse-connection phenomenon, avoid the damage of battery and charger circuit board, report to the police when the reverse-connection.
Description
Technical Field
The utility model relates to a charging circuit technical field specifically is a charger circuit board circuit.
Background
At present, electronic equipment generally needs a power adapter, namely a charger for charging or supplying electric energy to normally operate, but most of the existing chargers can only supply required electric energy through a single power supply, and a few chargers adopt solar energy as a second power supply, but the power supply is insufficient due to the fact that a photovoltaic cell cannot work at the maximum utilization rate, and in the electronic equipment powered by direct current, reverse connection of the power supply limit can cause damage of circuit board parts, even battery explosion, so that reverse connection protection of a circuit board circuit of the charger is important.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a charger circuit board circuit to solve the problem that proposes in the above-mentioned background art.
According to the embodiment of the utility model provides an in, provide a charger circuit board circuit, this charger circuit board circuit includes: the device comprises a main power supply control module, a solar control module, a voltage conversion module, a rechargeable battery module, an anti-reverse connection protection module and an alarm module;
the main power supply control module is connected with the power supply conversion module, is used for providing mains voltage, and is used for performing AC-DC-DC conversion on the mains voltage and outputting direct-current voltage;
the solar control module is connected with the power conversion module, is used for converting solar energy into electric energy, is used for sampling the electric energy, is used for outputting a feedback signal by comparing with a set voltage threshold value, and is used for receiving the feedback signal and controlling the electric energy to carry out DC-DC conversion;
the voltage conversion module is used for carrying out DC-DC conversion on the input voltage;
the rechargeable battery module is connected with the power supply conversion module and used for storing energy;
the anti-reverse connection protection module is connected with the rechargeable battery module and used for detecting whether the rechargeable battery module has a reverse connection phenomenon or not and outputting a control signal to control the work of the rechargeable battery module;
and the alarm module is connected with the rechargeable battery module and used for detecting the state of the rechargeable battery module and giving an alarm.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses charger circuit board circuit adopts the power supply means of this charger circuit board circuit of solar control module extension, through making comparison and output feedback signal with the voltage threshold who sets for, carry out DC-DC conversion through feedback signal control electric energy, improve the MPPT function of solar energy, improve the conversion efficiency to the power, and adopt and prevent reverse-connection protection module and avoid the battery to appear the reverse-connection phenomenon, avoid the damage of battery and charger circuit board, improve the security of charger circuit board, and report to the police when the reverse-connection.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic block diagram of a charger circuit board circuit according to an embodiment of the present invention.
Fig. 2 is a schematic connection diagram of a solar control module and a main power control module according to an embodiment of the present invention.
Fig. 3 is a circuit diagram of a circuit board circuit of a charger according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, a circuit board of a charger includes: the solar charging system comprises a main power supply control module 1, a solar control module 2, a voltage conversion module 3, a rechargeable battery module 4, an anti-reverse connection protection module 5 and an alarm module 6;
specifically, the main power control module 1 is connected to the power conversion module, and is configured to provide mains voltage, perform AC-DC conversion on the mains voltage, and output a direct-current voltage;
the solar control module 2 is connected with the power conversion module, is used for converting solar energy into electric energy, is used for sampling the electric energy, is used for outputting a feedback signal by comparing the electric energy with a set voltage threshold value, and is used for receiving the feedback signal and controlling the electric energy to carry out DC-DC conversion;
the voltage conversion module 3 is used for performing DC-DC conversion on the input voltage;
the rechargeable battery module 4 is connected with the power supply conversion module and used for storing energy;
the reverse connection prevention protection module 5 is connected with the rechargeable battery module 4 and is used for detecting whether the rechargeable battery module 4 has a reverse connection phenomenon or not and outputting a control signal to control the work of the rechargeable battery module 4;
and the alarm module 6 is connected with the rechargeable battery module 4 and used for detecting the state of the rechargeable battery module 4 and giving an alarm.
In this embodiment, referring to fig. 2 and fig. 3, the main power control module 1 includes a mains voltage supply unit 101 and an AC-DC conversion unit 102;
specifically, the mains voltage supply unit 101 is configured to provide a mains voltage;
an AC-DC conversion unit 102 for AC-DC converting mains voltage and outputting direct-current voltage;
the output end of the commercial voltage power supply unit 101 is connected to the input end of the AC-DC conversion unit 102, and the output end of the AC-DC conversion unit 102 is connected to the voltage conversion module 3.
Further, the solar control module 2 includes a solar energy conversion unit 201, an output feedback unit 202, and a DC-DC conversion unit 203;
specifically, the solar energy conversion unit 201 is used for converting solar energy into electric energy;
an output feedback unit 202, configured to sample the electric energy output by the solar energy conversion unit 201, and compare the electric energy with a set voltage threshold and output a feedback signal;
a DC-DC conversion unit 203 for receiving the electric energy output by the solar energy conversion unit 201 and the feedback signal and controlling DC-DC conversion;
the output end of the solar energy conversion unit 201 is connected with the input end of the DC-DC conversion unit 203 and the input end of the output feedback unit 202, the output end of the output feedback unit 202 is connected with the feedback end of the DC-DC conversion unit 203, and the output end of the DC-DC conversion unit 203 is connected with the voltage quasi-conversion module.
In a specific embodiment, the commercial voltage power supply unit 101 may use a commercial voltage for power supply, which is not described in detail; the AC-DC conversion unit 102 may use a transformer to reduce voltage, a rectifier to perform AC-DC conversion, and a relevant voltage device to perform DC-DC conversion, which is not described herein; the solar energy conversion unit 201 can adopt a solar panel to perform solar energy conversion, which is not described in detail.
Further, as shown in fig. 3, the solar energy conversion unit 201 includes a solar panel J1; the output feedback unit 202 comprises a first resistor R1, a second resistor R2, a third resistor R3, a first diode D1, a second diode D2, a voltage regulator IC1, a fourth resistor R4, a comparator A1 and a first capacitor C1; the DC-DC conversion unit 203 includes a DC-DC converter U2;
specifically, the output end of the solar panel J1 is connected to one end of a first resistor R1 and the input end of a voltage regulator IC1, and is connected to the input end of the DC-DC converter U2 through the anode of a first diode D1, the other end of the first resistor R1 is connected to the inverting terminal of a comparator a1, and is connected to one end of a third resistor R3 and the ground through a second resistor R2, the non-inverting terminal of the comparator a1 is connected to one end of a fourth resistor R4, and is connected to the other end of a third resistor R3 through the anode of a second diode D2, the ground end of the voltage regulator IC1 is grounded, the output end of the voltage regulator IC1 is connected to the other end of the fourth resistor R4, and is connected to the ground through a first capacitor C1, the output end of the comparator a1 is connected to the feedback end of the DC-DC converter U2, and the ground end of the DC-DC converter U2 is grounded.
In a specific embodiment, the comparator a1 can be an LM393 comparator; the voltage stabilizer IC1 can be selected from a three-terminal integrated voltage stabilizing chip 7812; the DC-DC converter U2 employs a voltage conversion chip, and the specific type is selected according to the voltage required by the battery, which is not limited herein.
Further, the voltage conversion module 3 includes a third diode D3, a fourth diode D4, a voltage converter U1, a fifth diode D5, a fifth resistor R5, a first inductor L1, a sixth resistor R6, and a third capacitor C3;
specifically, the anode of the third diode D3 is connected to the output terminal of the AC-DC conversion unit 102, the anode of the fourth diode D4 is connected to the output terminal of the DC-DC converter U2, the cathode of the third diode D3, the cathode of the fourth diode D4, and one end of the second capacitor are all connected to the first end of the voltage converter U1, the sixth end of the voltage converter U1 is grounded, the second end of the voltage converter U1 is connected to the cathode of the fifth diode D5 and is connected to one end of the sixth resistor R6 and the first end of the third capacitor C3 through the first inductor L1, the other end of the sixth resistor R6 is connected to one end of the fifth resistor R5 and the fourth end of the voltage converter U1, the second end of the third capacitor C3 and the other end of the fifth resistor R5, the anode of the fifth diode D5, the ground terminal of the voltage converter U1, and the other end of the second capacitor are all grounded.
In a specific embodiment, the voltage converter U1 may be an X17015 chip.
Further, the reverse connection prevention protection module 5 comprises a first switch tube N1, a seventh resistor R7, an eighth resistor R8, a voltage regulator tube VD1, a first power tube M1, a tenth resistor R10 and a battery;
specifically, an emitter of the first switch tube N1 is connected to the first end of the third capacitor C3 and the first end of the battery, a collector of the first switch tube N1 is connected to one end of the eighth resistor R8, a cathode of the regulator VD1, and a gate of the first power tube M1 through the seventh resistor R7, the other end of the eighth resistor R8, an anode of the regulator VD1, and a source of the first power tube M1 are all grounded, and a base of the first switch tube N1 is connected to the second end of the battery and the drain of the first power tube M1 through the tenth resistor R10.
Further, the alarm module 6 comprises an eleventh resistor R11, a ninth resistor R9, a second switch tube N2 and a speaker BL;
specifically, one end of the eleventh resistor R11 is connected to the first end of the third capacitor C3, the other end of the eleventh resistor R11 is connected to one end of the speaker BL, the other end of the speaker BL is connected to the collector of the second switching tube N2, the base of the second switching tube N2 is connected to the second end of the battery through the ninth resistor R9, and the emitter of the second switching tube N2 is grounded.
In a specific embodiment, the first switch tube N1 may be a PNP transistor, the second switch tube N2 may be an NPN transistor, and the specific type is not limited; the first power transistor M1 may be an N-channel enhancement type Metal Oxide Semiconductor Field Effect Transistor (MOSFET).
In the utility model, a charger circuit board circuit, the city voltage is provided through the city voltage power supply unit 101 in the main power control module 1, and the AC-DC-DC conversion unit 102 converts the city voltage input into the direct current required for smoothness, the solar control module 2 provides the auxiliary power through the solar conversion unit 201, and the output voltage is adjusted through the DC-DC conversion unit 203 and the output feedback unit 202, the electric energy output by the DC-DC conversion unit 203 and the AC-DC-DC conversion unit 102 will be processed uniformly through the voltage conversion module 3, the processed voltage will provide the electric energy for the battery, the reverse connection prevention protection module 5 will prevent the reverse connection of the battery, and the alarm is given by the alarm module 6, wherein specifically, in the solar control module 2, the voltage sampling is carried out by the first resistor R1 and the second resistor R2, when the voltage input to the inverting terminal of the comparator A1 rises, the output voltage of the comparator A1 is reduced, the voltage of the feedback terminal of the DC-DC converter U2 is reduced, and the output voltage drops, so that the output voltage can be changed through the change of the feedback terminal of the DC-DC converter U2, the output voltage is transmitted to the voltage converter U1 through the fourth diode D4 to perform DC-DC processing, so as to provide electric energy for the battery, when the battery is reversely connected, the first switch tube N1 is cut off, the second switch tube N2 is conducted, the first power tube M1 is cut off, at this time, the power supply is stopped, and the loudspeaker BL gives an alarm, when the reverse connection does not exist, the first switch tube N1 and the first power tube M1 are both conducted, the second switch tube N2 is disconnected, and the circuit board circuit of the charger works normally.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. 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 description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A circuit board circuit of a charger is characterized in that,
this charger circuit board circuit includes: the device comprises a main power supply control module, a solar control module, a voltage conversion module, a rechargeable battery module, an anti-reverse connection protection module and an alarm module;
the main power supply control module is connected with the voltage conversion module, is used for providing mains voltage, and is used for performing AC-DC-DC conversion on the mains voltage and outputting direct-current voltage;
the solar control module is connected with the power conversion module, is used for converting solar energy into electric energy, is used for sampling the electric energy, is used for outputting a feedback signal by comparing with a set voltage threshold value, and is used for receiving the feedback signal and controlling the electric energy to carry out DC-DC conversion;
the voltage conversion module is used for carrying out DC-DC conversion on the input voltage;
the rechargeable battery module is connected with the power supply conversion module and used for storing energy;
the anti-reverse connection protection module is connected with the rechargeable battery module and used for detecting whether the rechargeable battery module has a reverse connection phenomenon or not and outputting a control signal to control the work of the rechargeable battery module;
and the alarm module is connected with the rechargeable battery module and used for detecting the state of the rechargeable battery module and giving an alarm.
2. The circuit board of the charger according to claim 1, wherein the main power control module comprises a mains voltage supply unit and an AC-DC conversion unit;
the mains voltage power supply unit is used for supplying mains voltage;
the AC-DC-DC conversion unit is used for AC-DC-DC converting mains voltage and outputting direct-current voltage;
the output end of the commercial voltage power supply unit is connected with the input end of the AC-DC-DC conversion unit, and the output end of the AC-DC-DC conversion unit is connected with the voltage conversion module.
3. The circuit board of charger according to claim 1, wherein said solar control module comprises a solar energy conversion unit, an output feedback unit and a DC-DC conversion unit;
the solar energy conversion unit is used for converting solar energy into electric energy;
the output feedback unit is used for sampling the electric energy output by the solar energy conversion unit, comparing the electric energy with a set voltage threshold value and outputting a feedback signal;
the DC-DC conversion unit is used for receiving the electric energy output by the solar energy conversion unit and the feedback signal and controlling DC-DC conversion;
the output end of the solar energy conversion unit is connected with the input end of the DC-DC conversion unit and the input end of the output feedback unit, the output end of the output feedback unit is connected with the feedback end of the DC-DC conversion unit, and the output end of the DC-DC conversion unit is connected with the voltage standard conversion module.
4. The circuit board circuit of charger according to claim 3, wherein said solar energy conversion unit comprises a solar panel; the output feedback unit comprises a first resistor, a second resistor, a third resistor, a first diode, a second diode, a voltage stabilizer, a fourth resistor, a comparator and a first capacitor; the DC-DC conversion unit includes a DC-DC converter;
the output end of the solar panel is connected with one end of a first resistor and the input end of a voltage stabilizer and is connected with the input end of the DC-DC converter through the anode of a first diode, the other end of the first resistor is connected with the inverting end of a comparator and is connected with one end of a third resistor and the ground end through a second resistor, the inverting end of the comparator is connected with one end of a fourth resistor and is connected with the other end of the third resistor through the anode of a second diode, the grounding end of the voltage stabilizer is grounded, the output end of the voltage stabilizer is connected with the other end of the fourth resistor and is connected with the ground end through a first capacitor, the output end of the comparator is connected with the feedback end of the DC-DC converter, and the grounding end of the DC-DC converter is grounded.
5. The circuit board circuit of the charger according to claim 4, wherein the voltage conversion module comprises a third diode, a fourth diode, a voltage converter, a fifth diode, a fifth resistor, a first inductor, a sixth resistor, and a third capacitor;
the anode of the third diode is connected with the output end of the AC-DC-DC conversion unit, the anode of the fourth diode is connected with the output end of the DC-DC converter, the cathode of the third diode, the cathode of the fourth diode and one end of the second capacitor are connected with the first end of the voltage converter, the sixth end of the voltage converter is grounded, the second end of the voltage converter is connected with the cathode of the fifth diode and is connected with one end of the sixth resistor and the first end of the third capacitor through the first inductor, the other end of the sixth resistor is connected with one end of the fifth resistor and the fourth end of the voltage converter, and the second end of the third capacitor, the other end of the fifth resistor, the anode of the fifth diode, the ground end of the voltage converter and the other end of the second capacitor are grounded.
6. The circuit of the charger circuit board according to claim 5, wherein the reverse connection prevention protection module comprises a first switch tube, a seventh resistor, an eighth resistor, a voltage regulator tube, a first power tube, a tenth resistor and a battery;
the emitter of the first switch tube is connected with the first end of the third capacitor and the first end of the battery, the collector of the first switch tube is connected with one end of an eighth resistor, the cathode of the voltage regulator tube and the grid electrode of the first power tube through a seventh resistor, the other end of the eighth resistor, the anode of the voltage regulator tube and the source electrode of the first power tube are all grounded, and the base of the first switch tube is connected with the second end of the battery and the drain electrode of the first power tube through a tenth resistor.
7. The charger circuit board circuit according to claim 6, wherein the alarm module comprises an eleventh resistor, a ninth resistor, a second switch tube and a speaker;
one end of the eleventh resistor is connected with the first end of the third capacitor, the other end of the eleventh resistor is connected with one end of the loudspeaker, the other end of the loudspeaker is connected with a collector of the second switch tube, a base of the second switch tube is connected with the second end of the battery through the ninth resistor, and an emitting electrode of the second switch tube is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220348511.2U CN216851397U (en) | 2022-02-21 | 2022-02-21 | Charger circuit board circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220348511.2U CN216851397U (en) | 2022-02-21 | 2022-02-21 | Charger circuit board circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216851397U true CN216851397U (en) | 2022-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220348511.2U Active CN216851397U (en) | 2022-02-21 | 2022-02-21 | Charger circuit board circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216851397U (en) |
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2022
- 2022-02-21 CN CN202220348511.2U patent/CN216851397U/en active Active
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