CN219980500U - Solar cell panel charging circuit - Google Patents
Solar cell panel charging circuit Download PDFInfo
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- CN219980500U CN219980500U CN202321199007.1U CN202321199007U CN219980500U CN 219980500 U CN219980500 U CN 219980500U CN 202321199007 U CN202321199007 U CN 202321199007U CN 219980500 U CN219980500 U CN 219980500U
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- 230000002457 bidirectional effect Effects 0.000 claims 1
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of charging circuits, in particular to a solar panel charging circuit. The circuit comprises: the system comprises a first control module, a second control module, a first mos pipe M1, a second mos pipe M2 and load equipment; the grid electrode of the first mos tube M1 is electrically connected to the first end of the first control module, and the source electrode of the first mos tube M1 is grounded; the grid electrode of the second mos tube M2 is electrically connected to the first end of the second control module, and the source electrode of the second mos tube M2 is electrically connected to the negative electrode of the load equipment; the second end of the first control module is grounded; the second end of the second control module is electrically connected to the negative electrode of the load equipment; the drain of the first mos transistor M1 is electrically connected to the drain of the second mos transistor M2. The utility model can prevent the voltage spike from exceeding the withstand voltage value of the mos tube when the solar panel charges the storage battery, thereby avoiding causing larger risk.
Description
Technical Field
The utility model relates to the technical field of charging circuits, in particular to a solar panel charging circuit.
Background
Solar energy is a clean energy source, and thus solar energy is widely used today. In a solar power generation system, it includes a solar panel, a solar charge controller, a storage battery, and a load device.
In the solar panel charging circuits of the solar power generation systems nowadays, most of the solar panel charging circuits charge sources by adopting a mode that two mos tubes are connected in parallel. In the charging mode, the mos tube close to the storage battery end bears larger energy, so that the situation that the voltage spike is too high occurs, and if the voltage withstand value of the mos tube is exceeded, the mos tube is damaged, so that a larger risk exists.
Accordingly, the inventors consider that a solar panel charging circuit is needed.
Disclosure of Invention
The utility model provides a solar panel charging circuit which can prevent the voltage spike from exceeding the withstand voltage value of a mos tube when a storage battery is charged by a solar panel, thereby avoiding causing larger risks.
The utility model provides a solar panel charging circuit, which comprises: the system comprises a first control module, a second control module, a first mos pipe M1, a second mos pipe M2 and load equipment; the grid electrode of the first mos tube M1 is electrically connected to the first end of the first control module, and the source electrode of the first mos tube M1 is grounded; the grid electrode of the second mos tube M2 is electrically connected to the first end of the second control module, and the source electrode of the second mos tube M2 is electrically connected to the negative electrode of the load equipment; the second end of the first control module is grounded; the second end of the second control module is electrically connected to the negative electrode of the load equipment; the drain electrode of the first mos transistor M1 is electrically connected to the drain electrode of the second mos transistor M2.
By adopting the technical scheme, the first control module is used for controlling the turn-off of the first mos tube M1, and the second control module is used for controlling the turn-off of the second mos tube M2. The drain electrode of the first mos transistor M1 is electrically connected to the drain electrode of the second mos transistor M2, thereby improving the manner in which two mos transistors in a conventional solar panel charging circuit are connected in parallel to a source electrode pair. Therefore, the first mos tube M1 bears lower energy, so that the condition of overlarge voltage spike is avoided, and the whole circuit is protected while the mos tube is protected.
Optionally, the first control module includes a first resistor R1, a second resistor R2, a third resistor R3, a first diode D1, a first triode Q1, a first voltage input terminal, and a signal control input terminal interface; a first end of the first resistor R1 is electrically connected to the first voltage input end, and a second end of the first resistor R1 is electrically connected to the gate of the first mos transistor M1 and a first end of the second resistor R2; a second end of the second resistor R2 is electrically connected to the collector of the first triode Q1; a first end of the third resistor R3 is electrically connected to the base electrode of the first triode Q1, and a second end of the third resistor R3 is electrically connected to the negative electrode of the first diode D1; the emitter of the first triode Q1 is grounded; the anode of the first diode D1 is electrically connected to the signal control input interface.
Through adopting above-mentioned technical scheme, through adopting the connection mode of electrification for the turn-off mode of signal control input interface control first mos pipe M1, thereby make first mos pipe M1 bear the energy lower, avoid first mos pipe M1 to damage.
Optionally, the second control module includes a second triode Q2, a third triode Q3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a second diode D2, a second voltage input terminal, a detection signal interface, and an electrical terminal interface; the detection signal interface is electrically connected to the first end of the fourth resistor R4; the base electrode of the second triode Q2 is electrically connected to the second end of the fourth resistor R4, the emitter electrode of the second triode Q2 is electrically connected to the second voltage input end, and the collector electrode of the second triode Q2 is electrically connected to the anode of the second diode D2; a first end of the fifth resistor is electrically connected to a cathode of the second diode D2; the base electrode of the third triode Q3 is electrically connected to the second end of the fifth resistor R5, the emitter electrode of the third triode Q3 is electrically connected to the negative electrode of the load device, and the collector electrode of the third triode Q3 is electrically connected to the first end of the seventh resistor R7; a first end of the sixth resistor R6 is electrically connected to the electrical interface, and a second end of the sixth resistor R6 is electrically connected to a first end of the seventh resistor R7; a second end of the seventh resistor R7 is electrically connected to the gate of the second mos transistor M2; a first end of the eighth resistor R8 is electrically connected to the gate of the second mos transistor M2, and a second end of the eighth resistor R8 is electrically connected to the negative electrode of the load device; a first end of the ninth resistor R9 is electrically connected to the gate of the third transistor Q3, and a second end of the ninth resistor R9 is electrically connected to the negative electrode of the load device.
By adopting the technical scheme, the electric connection mode is adopted, and the turn-off mode of the second mos tube M2 is controlled according to the condition of detecting the solar voltage by the detection signal interface, so that the charging condition of the whole charging circuit is adjusted.
Optionally, the circuit further includes a tenth resistor R10, an eleventh resistor R11, and a first capacitor C1; a first end of the eleventh resistor R11 is electrically connected to the gate of the first mos transistor M1, and a second end of the eleventh resistor R11 is electrically connected to the first end of the first capacitor C1; a first end of the tenth resistor R10 is electrically connected to the gate of the first mos transistor M1, and a second end of the tenth resistor R10 is grounded; the second end of the first capacitor C1 is grounded.
Optionally, the circuit further comprises a twelfth resistor R12 and a third diode D3; a first end of the twelfth resistor R12 is electrically connected to the negative electrode of the load device, and a second end of the twelfth resistor R12 is electrically connected to the base electrode of the first triode Q1; the anode of the third diode D3 is electrically connected to the cathode of the load device, and the cathode of the third diode D3 is electrically connected to the first end of the seventh resistor R7.
By adopting the technical scheme, the circuit can be protected from being damaged when the circuit is short-circuited by adopting the electric connection mode.
Optionally, the circuit further comprises a thirteenth resistor R13 and a fourth diode D4; a first end of the thirteenth resistor R13 is electrically connected to the negative electrode of the fourth diode D4, and a second end of the thirteenth resistor R13 is electrically connected to the gate of the second transistor Q2; the anode of the fourth diode D4 is electrically connected to the anode of the load device.
Optionally, the circuit further comprises a fourteenth resistor R14, a fifth diode D5 and a second capacitor C2; a first end of the fourteenth resistor R14 is electrically connected to the positive electrode of the load device, and a second end of the fourteenth resistor R14 is electrically connected to the negative electrode of the load device; one end of the fifth diode D5 is electrically connected to the positive electrode of the load device, and the other end of the fifth diode D5 is electrically connected to the negative electrode of the load device; one end of the second capacitor C2 is electrically connected to the positive electrode of the load device, and the other end of the second capacitor C2 is electrically connected to the negative electrode of the load device.
Optionally, the third diode D3 is preferably a unidirectional TVS diode; the fifth diode D5 is preferably a bi-directional TVS diode.
In summary, one or more technical solutions provided in the embodiments of the present utility model at least have the following technical effects or advantages:
the first control module is used for controlling the turn-off of the first mos tube M1, and the second control module is used for controlling the turn-off of the second mos tube M2. The drain electrode of the first mos transistor M1 is electrically connected to the drain electrode of the second mos transistor M2, thereby improving the manner in which two mos transistors in a conventional solar panel charging circuit are connected in parallel to a source electrode pair. Therefore, the first mos tube M1 bears lower energy, so that the condition of overlarge voltage spike is avoided, and the whole circuit is protected while the mos tube is protected.
Drawings
Fig. 1 is a schematic circuit diagram of a solar panel charging circuit according to an embodiment of the present utility model.
Reference numerals illustrate: 1. a first control module; 2. a second control module; 3. and a load device.
Detailed Description
In order that those skilled in the art will better understand the technical solutions in the present specification, the technical solutions in the embodiments of the present specification will be clearly and completely described below with reference to the drawings in the embodiments of the present specification, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments.
In describing embodiments of the present utility model, words such as "for example" or "for example" are used to mean serving as examples, illustrations, or descriptions. Any embodiment or design described herein as "such as" or "for example" in embodiments of the utility model should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "or" for example "is intended to present related concepts in a concrete fashion.
In the description of embodiments of the utility model, the term "plurality" means two or more. For example, a plurality of systems means two or more systems, and a plurality of screen terminals means two or more screen terminals. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating an indicated technical feature. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "electrically connected," "electrically connected," or "electrically connected for communication" should be construed broadly, for example, "electrically connected," "electrically connected," or "electrically connected for communication" may mean not only physically electrically connected but also electrically connected or electrically connected for signals, for example, may be directly electrically connected, i.e., physically electrically connected, or may be indirectly electrically connected through at least one element in between, so long as electrical communication is achieved, or may be internal to two elements; signal electrical connection may refer to signal electrical connection through a medium, such as radio waves, in addition to signal electrical connection through a circuit. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, a schematic circuit diagram of a solar panel charging circuit according to an embodiment of the utility model is shown. Wherein the circuit comprises: a first control module 1, a second control module 2, a first mos pipe M1, a second mos pipe M2, and a load device 3; the grid electrode of the first mos tube M1 is electrically connected to the first end of the first control module 1, and the source electrode of the first mos tube M1 is grounded; the grid electrode of the second mos tube M2 is electrically connected to the first end of the second control module 2, and the source electrode of the second mos tube M2 is electrically connected to the negative electrode of the load device 3; the second end of the first control module 1 is grounded; the second end of the second control module 2 is electrically connected to the negative electrode of the load device 3; the drain of the first mos transistor M1 is electrically connected to the drain of the second mos transistor M2.
Specifically, in the present embodiment, the first control module 1 is configured to control the turn-off of the first mos transistor M1, and the second control module 2 is configured to control the turn-off of the second mos transistor M2, and a specific control method will be described in detail in the following embodiments. The drain electrode of the first mos transistor M1 is electrically connected to the drain electrode of the second mos transistor M2, thereby improving the manner in which two mos transistors in a conventional solar panel charging circuit are connected in parallel to a source electrode pair. In the charging mode of the present utility model, the first mos transistor M1 is subjected to lower energy, so that the condition of overlarge voltage spike is avoided, and the whole circuit is protected while the mos transistor is protected.
In one possible embodiment, the first control module 1 comprises a first resistor R1, a second resistor R2, a third resistor R3, a first diode D1, a first transistor Q1, a first voltage input, and a signal control input interface; a first end of the first resistor R1 is electrically connected to the first voltage input end, and a second end of the first resistor R1 is electrically connected to the gate of the first mos transistor M1 and a first end of the second resistor R2; the second end of the second resistor R2 is electrically connected to the collector of the first triode Q1; the first end of the third resistor R3 is electrically connected to the base electrode of the first triode Q1, and the second end of the third resistor R3 is electrically connected to the cathode of the first diode D1; the emitter of the first triode Q1 is grounded; the positive electrode of the first diode D1 is electrically connected to the signal control input terminal interface.
Specifically, in the present technical solution, referring to fig. 1, the first voltage input terminal is the U1 terminal as shown in fig. 1, and the voltage is 10v. The signal control input interface is the CHARGE-CTRL end as shown in fig. 1, which is controlled by Keil software to realize that the first mos tube M1 is turned off once a minute. The specific implementation mode is as follows: when the CHARGE-CTRL terminal outputs a low level, the first transistor Q1 is turned off, and the first voltage input terminal outputs a 10v voltage to the gate of the first mos transistor M1, and the first mos transistor M1 is turned on. When the CHARGE-CTRL terminal outputs a high level after one minute, the first transistor Q1 is in an on state, and the voltage is divided by the first resistor R1 and the second resistor R2, so that the voltage input to the gate of the first mos transistor M1 is smaller than the off voltage of the first mos transistor M1, and the first mos transistor M1 is in an off state. The resistances of the first resistor R1, the second resistor R2 and the third resistor R3 are not excessively limited, and the preferred voltage value of the voltage input to the gate of the first mos transistor M1 after the voltage division by the first resistor R1 and the second resistor R2 is 0.09v, the model of the first diode D1 and the first triode Q1 is not excessively limited in the present utility model
In one possible implementation, the second control module 2 includes a second triode Q2, a third triode Q3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a second diode D2, a second voltage input, a detection signal interface, and a power-terminal interface; the detection signal interface is electrically connected to the first end of the fourth resistor R4; the base electrode of the second triode Q2 is electrically connected to the second end of the fourth resistor R4, the emitter electrode of the second triode Q2 is electrically connected to the second voltage input end, and the collector electrode of the second triode Q2 is electrically connected to the anode of the second diode D2; the first end of the fifth resistor is electrically connected to the cathode of the second diode D2; the base electrode of the third triode Q3 is electrically connected to the second end of the fifth resistor R5, the emitter electrode of the third triode Q3 is electrically connected to the negative electrode of the load device 3, and the collector electrode of the third triode Q3 is electrically connected to the first end of the seventh resistor R7; the first end of the sixth resistor R6 is electrically connected to the electric terminal interface, and the second end of the sixth resistor R6 is electrically connected to the first end of the seventh resistor R7; the second end of the seventh resistor R7 is electrically connected to the gate of the second mos transistor M2; the first end of the eighth resistor R8 is electrically connected to the gate of the second mos transistor M2, and the second end of the eighth resistor R8 is electrically connected to the negative electrode of the load device 3; a first end of the ninth resistor R9 is electrically connected to the gate of the third transistor Q3, and a second end of the ninth resistor R9 is electrically connected to the negative electrode of the load device 3.
Specifically, in the present technical solution, the detection signal interface is a SOLAR-SWITCH terminal as shown in FIG. 1, that is, the existing software is used to detect the SOLAR voltage, and the specific detection software is not limited herein too much. The second voltage input terminal is the U2 terminal shown in fig. 1, and the voltage is 3.3v. When the SOLAR-SWITCH terminal detects that the SOLAR voltage is smaller than the 3.3v voltage output by the second voltage input terminal, the SOLAR-SWITCH terminal outputs a low level at the moment, the base voltage of the second triode Q2 is smaller than the emitter voltage of the second triode Q2, and the second triode Q2 is in an on state at the moment. The voltage inputted to the base of the third transistor Q3 is greater than the voltage of the emitter of the third transistor Q3 through the voltage division of the fifth resistor R5 and the ninth resistor R9, and at this time, the third transistor Q3 is turned on, so that the collector voltage of the third transistor Q3 is 0, and thus the second mos transistor M2 is in the off state. On the contrary, when the SOLAR-SWITCH terminal detects that the SOLAR voltage is greater than the output voltage of the second voltage input terminal by 3.3v, the second mos transistor M2 is in an on state. In the present utility model, the types of the second transistor Q2 and the third transistor Q3 are not excessively limited in the present utility model; the resistance values of the fourth resistor R4, the fifth resistor R5, the sixth resistor R6, the seventh resistor R7, the eighth resistor R8, and the ninth resistor R9 are not excessively defined in the present utility model.
In one possible implementation, the circuit further includes a tenth resistor R10, an eleventh resistor R11, and a first capacitor C1; a first end of the eleventh resistor R11 is electrically connected to the gate of the first mos transistor M1, and a second end of the eleventh resistor R11 is electrically connected to the first end of the first capacitor C1; a first end of the tenth resistor R10 is electrically connected to the gate of the first mos transistor M1, and a second end of the tenth resistor R10 is grounded; the second terminal of the first capacitor C1 is grounded.
Specifically, in the present embodiment, the tenth resistor R10, the eleventh resistor R11, and the first capacitor C1 function as filters. The model numbers of the tenth resistor R10, the eleventh resistor R11, and the first capacitor C1 are not excessively limited in the present utility model.
In one possible implementation, the circuit further includes a twelfth resistor R12 and a third diode D3; a first end of the twelfth resistor R12 is electrically connected to the negative electrode of the load device 3, and a second end of the twelfth resistor R12 is electrically connected to the base of the first transistor Q1; the anode of the third diode D3 is electrically connected to the cathode of the load device 3, and the cathode of the third diode D3 is electrically connected to the first end of the seventh resistor R7.
Specifically, in the present embodiment, the twelfth resistor R12 and the third diode D3 function as a protection circuit. The twelfth resistor R12 may be when the solar end of the circuit is shorted, at which time the current goes to M-to-B-as shown in fig. 1. At this time, the twelfth resistor R12 and the current generate a large voltage, thereby controlling the first transistor Q1 to be turned on, thereby turning off the first mos transistor M1, so that the charging is stopped. The model numbers of the twelfth resistor R12 and the third diode D3 are not excessively limited in the present utility model.
In one possible implementation, the circuit further comprises a thirteenth resistor R13 and a fourth diode D4; a first end of the thirteenth resistor R13 is electrically connected to the cathode of the fourth diode D4, and a second end of the thirteenth resistor R13 is electrically connected to the gate of the second transistor Q2; the anode of the fourth diode D4 is electrically connected to the anode of the load device 3.
Specifically, in the present technical solution, the model numbers of the thirteenth resistor R13 and the fourth diode D4 are not excessively limited in the present utility model.
In one possible implementation, the circuit further includes a fourteenth resistor R14, a fifth diode D5, and a second capacitor C2; the first end of the fourteenth resistor R14 is electrically connected to the positive electrode of the load device 3, and the second end of the fourteenth resistor R14 is electrically connected to the negative electrode of the load device 3; one end of the fifth diode D5 is electrically connected to the positive electrode of the load device 3, and the other end of the fifth diode D5 is electrically connected to the negative electrode of the load device 3; one end of the second capacitor C2 is electrically connected to the positive electrode of the load device 3, and the other end of the second capacitor C2 is electrically connected to the negative electrode of the load device 3.
Specifically, in the present embodiment, the fourteenth resistor R14, the fifth diode D5, and the second capacitor C2 function as a protection circuit. The model numbers of the fourteenth resistor R14, the fifth diode D5, and the second capacitor C2 are not excessively limited in the present utility model.
In one possible embodiment, the third diode D3 is preferably a unidirectional TVS diode; the fifth diode D5 is preferably a bi-directional TVS diode.
Specifically, in the present embodiment, the third diode D3 and the fifth diode D5 are diodes for protecting the circuit. Their primary function is to provide stable protection against circuit overvoltage or current surges. Unidirectional TVS diodes are commonly used to protect sensitive electronic components in unidirectional circuits. When the voltage in the circuit exceeds the operating voltage of the TVS diode, it will turn on quickly, absorbing and dispersing the overvoltage into other components in the circuit, thereby protecting the other components in the circuit from damage. Unidirectional TVS diodes allow current to flow in only one direction. The bi-directional TVS diode is capable of protecting the bi-directional circuit at the same time. It can handle both forward and reverse voltage overvoltage events and disperse the overvoltage into other components in the circuit. The bi-directional TVS diode may allow current to flow in both directions.
The foregoing description of embodiments of the utility model has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the technical improvements in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the utility model is defined by the appended claims.
Claims (8)
1. A solar panel charging circuit, the circuit comprising: a first control module (1), a second control module (2), a first mos pipe M1, a second mos pipe M2, and a load device (3);
the grid electrode of the first mos tube M1 is electrically connected to the first end of the first control module (1), and the source electrode of the first mos tube M1 is grounded;
the grid electrode of the second mos tube M2 is electrically connected to the first end of the second control module (2), and the source electrode of the second mos tube M2 is electrically connected to the negative electrode of the load equipment (3);
the second end of the first control module (1) is grounded;
the second end of the second control module (2) is electrically connected to the negative electrode of the load equipment (3);
the drain electrode of the first mos transistor M1 is electrically connected to the drain electrode of the second mos transistor M2.
2. A solar panel charging circuit according to claim 1, wherein the first control module (1) comprises a first resistor R1, a second resistor R2, a third resistor R3, a first diode D1, a first transistor Q1, a first voltage input and a signal control input interface;
a first end of the first resistor R1 is electrically connected to the first voltage input end, and a second end of the first resistor R1 is electrically connected to the gate of the first mos transistor M1 and a first end of the second resistor R2;
a second end of the second resistor R2 is electrically connected to the collector of the first triode Q1;
a first end of the third resistor R3 is electrically connected to the base electrode of the first triode Q1, and a second end of the third resistor R3 is electrically connected to the negative electrode of the first diode D1;
the emitter of the first triode Q1 is grounded;
the anode of the first diode D1 is electrically connected to the signal control input interface.
3. A solar panel charging circuit according to claim 2, wherein the second control module (2) comprises a second transistor Q2, a third transistor Q3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a second diode D2, a second voltage input, a detection signal interface, and an electrical terminal interface;
the detection signal interface is electrically connected to the first end of the fourth resistor R4;
the base electrode of the second triode Q2 is electrically connected to the second end of the fourth resistor R4, the emitter electrode of the second triode Q2 is electrically connected to the second voltage input end, and the collector electrode of the second triode Q2 is electrically connected to the anode of the second diode D2;
a first end of the fifth resistor is electrically connected to a cathode of the second diode D2;
the base electrode of the third triode Q3 is electrically connected to the second end of the fifth resistor R5, the emitter electrode of the third triode Q3 is electrically connected to the negative electrode of the load device (3), and the collector electrode of the third triode Q3 is electrically connected to the first end of the seventh resistor R7;
a first end of the sixth resistor R6 is electrically connected to the electrical interface, and a second end of the sixth resistor R6 is electrically connected to a first end of the seventh resistor R7;
a second end of the seventh resistor R7 is electrically connected to the gate of the second mos transistor M2;
a first end of the eighth resistor R8 is electrically connected to the gate of the second mos transistor M2, and a second end of the eighth resistor R8 is electrically connected to the negative electrode of the load device (3);
a first end of the ninth resistor R9 is electrically connected to the gate of the third transistor Q3, and a second end of the ninth resistor R9 is electrically connected to the negative pole of the load device (3).
4. A solar panel charging circuit according to claim 1, further comprising a tenth resistor R10, an eleventh resistor R11 and a first capacitor C1;
a first end of the eleventh resistor R11 is electrically connected to the gate of the first mos transistor M1, and a second end of the eleventh resistor R11 is electrically connected to the first end of the first capacitor C1;
a first end of the tenth resistor R10 is electrically connected to the gate of the first mos transistor M1, and a second end of the tenth resistor R10 is grounded;
the second end of the first capacitor C1 is grounded.
5. A solar panel charging circuit according to claim 3, further comprising a twelfth resistor R12 and a third diode D3;
a first end of the twelfth resistor R12 is electrically connected to the negative electrode of the load device (3), and a second end of the twelfth resistor R12 is electrically connected to the base electrode of the first triode Q1;
the anode of the third diode D3 is electrically connected to the cathode of the load device (3), and the cathode of the third diode D3 is electrically connected to the first end of the seventh resistor R7.
6. A solar panel charging circuit according to claim 3, further comprising a thirteenth resistor R13 and a fourth diode D4;
a first end of the thirteenth resistor R13 is electrically connected to the negative electrode of the fourth diode D4, and a second end of the thirteenth resistor R13 is electrically connected to the gate of the second transistor Q2;
the anode of the fourth diode D4 is electrically connected to the anode of the load device (3).
7. The solar panel charging circuit of claim 5, further comprising a fourteenth resistor R14, a fifth diode D5, and a second capacitor C2;
a first end of the fourteenth resistor R14 is electrically connected to the positive pole of the load device (3), and a second end of the fourteenth resistor R14 is electrically connected to the negative pole of the load device (3);
one end of the fifth diode D5 is electrically connected to the positive electrode of the load device (3), and the other end of the fifth diode D5 is electrically connected to the negative electrode of the load device (3);
one end of the second capacitor C2 is electrically connected to the positive electrode of the load device (3), and the other end of the second capacitor C2 is electrically connected to the negative electrode of the load device (3).
8. The solar panel charging circuit of claim 7, wherein the third diode D3 is a unidirectional TVS diode; the fifth diode D5 is a bidirectional TVS diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321199007.1U CN219980500U (en) | 2023-05-18 | 2023-05-18 | Solar cell panel charging circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321199007.1U CN219980500U (en) | 2023-05-18 | 2023-05-18 | Solar cell panel charging circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219980500U true CN219980500U (en) | 2023-11-07 |
Family
ID=88597236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321199007.1U Active CN219980500U (en) | 2023-05-18 | 2023-05-18 | Solar cell panel charging circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219980500U (en) |
-
2023
- 2023-05-18 CN CN202321199007.1U patent/CN219980500U/en active Active
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