CN109996373A - A kind of control circuit board, control chip and control system - Google Patents

Abstract

Embodiments of the present application provide a control circuit board, a control chip, and a control system. The control circuit board is connected to a solar panel through a first positive interface and a first negative interface, and is connected to a rechargeable battery through a second positive interface and a second negative interface. The connection is connected with the light-emitting element through the third positive interface and the third negative interface, and the conduction of the pin is automatically controlled by the control chip, so as to realize the on-off control between the solar panel, the rechargeable battery and the light-emitting element. In this way, since the control function is integrated into the control chip, the entire control circuit board needs to be set with few components, and the circuit is simple. In the circuit design, only the connection circuit between the control chip and each positive and negative interface needs to be designed, namely Yes, reducing the design cost.

Description

A control circuit board, a control chip and a control system

technical field

The present application relates to the technical field of energy control, and in particular, to a control circuit board, a control chip and a control system.

Background technique

Solar outdoor LED (Light Emitting Diode, light-emitting diode) lights have become popular at home and abroad due to their high luminous efficiency, no electricity bills, no outdoor waterproof wiring, and low cost. This type of lamps uses solar cells as energy input, and controls the circuit board to store energy in lithium batteries through solar irradiation, and emit the energy in lithium batteries to light LED lamps. However, the existing control circuit board has the disadvantages of complicated circuit, too many components and high circuit design cost.

SUMMARY OF THE INVENTION

The purpose of the embodiments of the present application is to provide a control circuit board, a control chip and a control system to solve the problems in the related art that the circuit of the control circuit board is complicated, the components are too many, and the circuit design cost is high.

An embodiment of the present application provides a control circuit board, including: a printed circuit board; a control chip, disposed on the printed circuit board, the control chip includes a first input pin, a second input pin, and a first output pin, the second output pin; the first positive interface and the first negative interface are arranged on the printed circuit board, the first positive interface is used for connecting with the positive pole of the solar panel, and the first positive pole The interface is connected with the first input pin; the first negative interface is used for connecting with the negative electrode of the solar cell panel; the second positive interface and the second negative interface are arranged on the printed circuit board, the The second positive interface is used to connect to the positive pole of the rechargeable battery, the second negative interface is used to connect to the negative pole of the rechargeable battery, and the second positive interface is connected to the first output pin, so The second negative interface is respectively connected with the second output pin and the first negative interface; the third positive interface and the third negative interface are arranged on the printed circuit board, and the third positive interface is used for is connected with the input end of the light-emitting element, and the third positive interface is connected with the first output pin and the second positive interface respectively; the third negative interface is used for connecting with the output end of the light-emitting element , and the third negative interface is also connected to the second input pin; the control chip is used to output the current input through the first input pin through the first output pin, so as to The rechargeable battery is charged; the second input pin and the second output pin are turned on, so that the light-emitting element emits light.

In the above implementation structure, the control circuit board is connected to the solar panel through the first positive interface and the first negative interface, connected to the rechargeable battery through the second positive interface and the second negative interface, and connected to the rechargeable battery through the third positive interface and the third negative interface. The interface is connected with the light-emitting element, and the conduction of the pin is automatically controlled by the control chip, so as to realize the on-off control between the solar panel, the rechargeable battery and the light-emitting element. In this way, since the control function is integrated into the control chip, the entire control circuit board needs to be set with few components, and the circuit is simple. In the circuit design, only the connection circuit between the control chip and each positive and negative interface needs to be designed, namely Yes, reducing the design cost.

Further, the control chip further includes a third input pin; the third input pin is connected to the first positive interface to obtain the voltage output by the solar panel; the control chip is used for When the voltage output by the solar panel is greater than the preset voltage threshold, the current input through the first input pin is output through the first output pin to charge the rechargeable battery; and in the When the voltage output by the solar cell panel is less than or equal to the preset voltage threshold, the second input pin and the second output pin are turned on, so that the light-emitting element emits light.

In the above implementation structure, the control chip obtains the voltage output by the solar panel through the dedicated third input pin, and then automatically controls the output voltage of the first input pin and the output pin of the first output pin according to the voltage output by the solar panel. turn-on, or turn-on of the second input pin and the second output pin. That is, the rechargeable battery is charged based on the voltage output by the solar panel, and the automatic control of the light-emitting element is realized.

Further, the control chip further includes a ground pin; the ground pin is connected to the first negative electrode interface.

In the above implementation structure, the ground electrode is arranged in the control chip, so that the negative electrodes of the solar cell panel and the rechargeable battery are grounded in the control chip, and no additional grounding area on the printed circuit board is required. In addition, by setting the ground pin, the whole system is also made more stable.

Further, the control circuit board further includes: a DC blocking capacitor arranged on the printed circuit board; the second positive interface is connected to the ground pin through the DC blocking capacitor.

In the above implementation structure, the second positive interface is connected to the ground pin through a DC blocking capacitor, so that when the rechargeable battery is charged through the second positive interface, the interference current (AC Current) is introduced into the ground pin, thereby reducing the interference during the charging process and improving the charging efficiency.

Further, the control circuit board further includes: a first switch; the first switch is arranged between the first input pin and the first positive interface to control the first input pin and all The conduction between the first positive terminals is described.

In the above implementation structure, a first switch is provided between the first input pin and the first positive interface, so that the user can manually control whether the rechargeable battery needs to be charged through the solar panel through the first switch, thereby Improved controllability of the control circuit board.

Further, the control circuit board further includes: a second switch; the second switch is arranged between the second positive interface and the third positive interface to control the second positive interface and the third positive interface Conduction between the three positive terminals.

In the above implementation structure, a second switch is provided between the second positive interface and the third positive interface, so that the user can manually control whether the light-emitting element needs to be powered by a rechargeable battery to make the light-emitting element emit light through the second switch. Thus, the controllability of the control circuit board is improved.

Further, the control circuit board further includes: an adjustable resistor; the adjustable resistor is arranged between the third negative electrode interface and the second input pin.

In the above implementation structure, an adjustable resistor is set between the third negative interface and the second input pin, so that the user can adjust the size of the adjustable resistor to adjust the brightness of the light-emitting element, thereby improving the control Controllability of the circuit board.

An embodiment of the present application further provides a control system, including: a solar cell panel, a rechargeable battery, a light-emitting element, and a control circuit board of any of the above structures; the positive electrode of the solar cell panel and the first The positive interface is connected; the negative pole of the solar panel is connected to the first negative interface of the control circuit board; the positive pole of the rechargeable battery is connected to the second positive interface of the control circuit board; The negative electrode is connected to the second negative electrode interface of the control circuit board; the input end of the light-emitting element is connected to the third positive electrode interface of the control circuit board; the output end of the light-emitting element is connected to the third positive electrode interface of the control circuit board Negative connector connection.

In the above implementation structure, the control circuit board is connected to the solar panel through the first positive interface and the first negative interface, connected to the rechargeable battery through the second positive interface and the second negative interface, and connected to the rechargeable battery through the third positive interface and the third negative interface. The interface is connected with the light-emitting element, and the conduction of the pin is automatically controlled by the control chip, so as to realize the on-off control between the solar panel, the rechargeable battery and the light-emitting element. In this way, since the control function is integrated into the control chip, the entire control system requires few components on the control circuit board, and the circuit is simple. In the circuit design, only the control chip and each positive and negative interface need to be designed. The connection line can be used, which reduces the design cost.

The embodiment of the present application also provides a control chip, including a voltage gating circuit, a first input pin, a second input pin, a third input pin, a first output pin, and a second output pin; The three input pins are connected to the second output pin through the voltage gating circuit; the third input pin is used to connect with the positive pole of the solar panel; the second output pin is used to connect to the The negative pole of the solar panel is connected; the third input pin is used to obtain the voltage output by the solar panel and output it to the voltage gating circuit; the voltage gating circuit is used to output the voltage on the solar panel When the voltage of the solar panel is greater than the preset voltage threshold, the first input pin and the first output pin are turned on; when the voltage output by the solar panel is less than or equal to the preset voltage threshold, the second input pin and the first output pin are turned on. The input pin and the second output pin are turned on.

In the above implementation structure, the conduction of the pins is automatically controlled by the control chip. When designing the control circuit board, there are few components required to be set on the entire control circuit board, and the circuit is simple. In the circuit design, only the control chip needs to be designed. The connection line with each positive and negative interface is sufficient, which reduces the design cost.

Further, the control chip further includes a ground pin; the ground pin is grounded and used for connecting with the negative electrode of the solar cell panel.

In the above implementation structure, the ground electrode is arranged in the control chip, so that the negative electrode of the solar panel is grounded in the control chip, which can make the system more stable when the entire control chip is connected to the control system.

Description of drawings

In order to explain the technical solutions of the embodiments of the present application more clearly, the following briefly introduces the accompanying drawings that need to be used in the embodiments of the present application. It should be understood that the following drawings only show some embodiments of the present application, therefore It should not be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can also be obtained from these drawings without any creative effort.

1 is a schematic structural diagram of a control system provided by an embodiment of the present application;

FIG. 2 is a schematic diagram of the basic structure of a control circuit board provided by an embodiment of the present application;

3 is a schematic structural diagram of a more specific control circuit board provided by an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a control chip provided by an embodiment of the present application;

FIG. 5 is a schematic structural diagram of another specific control circuit board provided by an embodiment of the present application;

6 is a schematic structural diagram of a control circuit board provided with a DC blocking capacitor according to an embodiment of the present application;

7 is a schematic structural diagram of a control circuit board provided with a first switch according to an embodiment of the present application;

8 is a schematic structural diagram of a control circuit board provided with a second switch according to an embodiment of the present application;

9 is a schematic structural diagram of a control circuit board provided with an adjustable resistance according to an embodiment of the present application;

FIG. 10 is a schematic structural diagram of a control circuit board provided with a protection resistor according to an embodiment of the present application.

Icon: 1-control circuit board; 100-printed circuit board; 101-control chip; 102-first positive interface; 103-first negative interface; 104-second positive interface; 105-second negative interface; 106-first Three positive interface; 107-third negative interface; 1011-first input pin; 1012-second input pin; 1013-third input pin; 1014-first output pin; 1015-second output pin ;1016-ground pin;1017-voltage gating circuit;10171-electromagnet;10172-conductive structure;10173-miniature spring;108-DC blocking capacitor;109-first switch;110-second switch;111- Adjustable resistance; 112-protection resistance; 2-solar panel; 3-rechargeable battery; 4-light-emitting element.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

Example 1:

Please refer to FIG. 1 , which is a schematic structural diagram of a control system provided by an embodiment of the present application. In the embodiment of the present application, the control system includes a solar cell panel 2 , a rechargeable battery 3 , a light-emitting element 4 , and a control circuit board 1 connected to the solar cell panel 2 , the rechargeable battery 3 , and the light-emitting element 4 respectively.

Referring to FIG. 2 , FIG. 2 is a schematic structural diagram of a control circuit board 1 provided by an embodiment of the present application. The control circuit board 1 includes a printed circuit board 100, a control chip 101 disposed on the printed circuit board 100, a first positive terminal 102, a first negative terminal 103, a second positive terminal 104, a second negative terminal 105, and a third positive terminal The interface 106 and the third negative interface 107 .

The control chip 101 includes a first input pin 1011 , a second input pin 1012 , a first output pin 1014 , and a second output pin 1015 . The first positive interface 102 , the first negative interface 103 , the second positive interface 104 , the second negative interface 105 , the third positive interface 106 and the third negative interface 107 are arranged in the printed circuit board 100 , and the setting of the control chip 101 outside the area. Exemplarily, the first positive terminal 102 , the first negative terminal 103 , the second positive terminal 104 , the second negative terminal 105 , the third positive terminal 106 and the third negative terminal 107 may be arranged on the edge area of the printed circuit board 100 . for easy wiring.

The first positive terminal 102 is used for connecting with the positive terminal of the solar cell panel 2 , and the first negative terminal 103 is used for connecting with the negative terminal of the solar cell panel 2 . And the first positive interface 102 is connected to the first input pin 1011 .

The second positive terminal 104 is used for connecting with the positive terminal of the rechargeable battery 3 , and the second negative terminal 105 is used for connecting with the negative terminal of the rechargeable battery 3 . And the second positive port 104 is connected to the first output pin 1014 , and the second negative port 105 is connected to the second output pin 1015 and the first negative port 103 respectively. Exemplarily, in the embodiment of the present application, the first negative electrode interface 103 and the second negative electrode interface 105 may be disposed nearby to facilitate the connection between the first negative electrode interface 103 and the second negative electrode interface 105 . Optionally, in terms of physical implementation, the functions of the first negative electrode interface 103 and the second negative electrode interface 105 can be realized as a single physical interface. At this time, the interface can be connected to the negative electrode of the solar panel 2, or can be connected to the negative electrode of the solar panel 2. The negative terminal of the rechargeable battery 3 is connected. It should be noted that the rechargeable battery 3 in the embodiment of the present application includes but is not limited to a lithium battery, a lead-acid battery, a nickel metal hydride battery, and the like.

The third positive port 106 is used for connecting with the input end of the light emitting element 4 , and the third negative port 107 is used for connecting with the output end of the light emitting element 4 . The third positive interface 106 is also connected to the first output pin 1014 and the second positive interface 104 respectively; the third negative interface 107 is also connected to the second input pin 1012 . Optionally, in the embodiment of the present application, the first positive interface 102 and the first negative interface 103 may be disposed nearby on the printed circuit board 100, so as to facilitate wiring with the solar cell panel 2; The second positive interface 104 and the second negative interface 105 can also be located nearby on the printed circuit board 100 , and the third positive interface 106 and the third negative interface 107 can also be located nearby on the printed circuit board 100 .

In this way, when the control chip 101 controls the first input pin 1011 and the first output pin 1014 to conduct, a closed loop is formed between the solar panel 2 and the rechargeable battery 3, so that the solar panel 2 can The rechargeable battery 3 is charged. When the control chip 101 controls the second input pin 1012 and the second output pin 1015 to be turned on, a closed loop can be formed between the rechargeable battery 3 and the light-emitting element 4, so that the rechargeable battery 3 is a light-emitting element 4. Power is supplied to make the light-emitting element 4 emit light. It should be noted that the light-emitting element 4 in the embodiment of the present application refers to an element that is driven by a current to realize light-emitting, including but not limited to an LED lamp, a tungsten lamp, a fluorescent lamp, and the like.

In the embodiment of the present application, as shown in FIG. 3 , the control chip 101 may further include a third input pin 1013 specially used to obtain the output voltage of the solar cell panel 2 , and the third input pin 1013 is directly connected to the first positive electrode Interface 102 is connected.

Referring to FIG. 4 , in order to realize the automatic turn-on control of the control chip 101, a voltage gating circuit 1017 can be set in the control chip 101. The input end of the voltage gating circuit 1017 is connected to the third input pin 1013, and the output end is connected to the third input pin 1013. The second output pin 1015 is connected, so that the positive electrode of the solar cell panel 2 is connected through the third input pin 1013 , and the negative electrode of the solar cell panel 2 is connected through the second output pin 1015 . The voltage gating circuit 1017 forms a closed loop with the solar cell panel 2 , so as to obtain the voltage output by the solar cell panel 2 .

It should be understood that, the function of the voltage gating circuit 1017 in the embodiment of the present application is to: when the voltage output by the solar cell panel 2 is greater than the preset voltage threshold, the current input through the first input pin 1011 is passed through the first output lead. pin 1014 is output to charge the rechargeable battery 3; and when the output voltage of the solar panel 2 is less than or equal to the preset voltage threshold, the second input pin 1012 and the second output pin 1015 are turned on to make light emitting Element 4 emits light.

In order to realize this control function, the implementation structure of the voltage gating circuit 1017 in the embodiment of the present application can be the structure shown in FIG. Miniature springs 10173 between housing and conductive structure 10172. It should be noted that, in this embodiment of the present application, the coils on the electromagnet 10171 are respectively connected to the third input pin 1013 and the second output pin 1015 to receive current; while the conductive structure 10172 can be made of iron, etc., which can be electromagnetized The iron 10171 is made of a conductive material that the iron 10171 adsorbs, or it can be a copper wire with a magnetic material attached to the side of the electromagnet 10171 . Referring to FIG. 4 , when the current received by the coil of the electromagnet 10171 is greater than the preset current threshold (because the current is positively correlated with the voltage, it can also be considered that when the voltage received by the coil is greater than the preset voltage threshold), the electromagnet 10171 will Generates magnetism, so that the conductive structure 10172 is adsorbed between the first input pin 1011 and the first output pin 1014 against the elasticity of the micro spring 10173, so that the first input pin 1011 and the first output pin 1014 are connected ; Similarly, when the voltage received by the coil of the electromagnet 10171 is less than or equal to the preset voltage threshold, the conductive structure 10172 will fall back to between the second input pin 1012 and the second output pin 1015 due to the action of the micro spring 10173, Thus, the second input pin 1012 and the second output pin 1015 are turned on.

It should be noted that, in the embodiment of the present application, the number of coil turns, the size of the inner core of the electromagnet 10171, the material, the elasticity value of the micro-spring 10173, etc. are different, which will lead to different voltages required by the electromagnet 10171 to overcome the elasticity of the micro-spring 10173. . Therefore, the voltage threshold can be set by controlling the number of coil turns, the size of the inner core of the electromagnet 10171, the material, and the elasticity value of the micro-spring 10173.

It should be understood that the structure of the voltage gating circuit 1017 shown in FIG. 4 is only an optional structure in the embodiment of the present application, which does not mean that the embodiment of the present application can only use this structure to implement the voltage gating circuit 1017 . In fact, as long as the structure can realize the function required by the voltage gating circuit 1017 in the embodiment of the present application, it should fall within the protection scope of the present application. For example, the voltage gating circuit 1017 in the embodiment of the present application may also be implemented by connecting a common voltage detection circuit and a controlled gating switch.

It should be noted that the voltage output by the solar panel 2 is affected by the received light intensity, and when the received light intensity is weak, the output voltage will be smaller. In order to prevent the voltage of the solar cell panel 2 from being lower than the voltage of the rechargeable battery 3 , so that the discharge of the rechargeable battery 3 causes damage to the solar cell panel 2 , in the embodiment of the present application, the first step in the control chip 101 can also be used. A diode is arranged between the first input pin 1011 and the second input pin 1012 , so as to prevent the rechargeable battery 3 from discharging the solar cell panel 2 in reverse by using the unidirectional conduction characteristic of the diode. It should be understood that, the diode can also be arranged between the first input pin 1011 and the first anode interface 102 , or between the first output pin 1014 and the second anode interface 104 .

In the embodiment of the present application, as shown in FIG. 5 , the control chip 101 further includes a ground pin 1016 , and the ground pin 1016 is grounded and connected to the first negative electrode interface 103 . It should be noted that in practical applications, the earth can be regarded as a powerful equipotential body, and it is difficult to have interference to change its potential. Therefore, after connecting the ground pin 1016 to the first negative interface 103, during the charging and discharging process, the interference current in the circuit can be output to the ground, eliminating the interference in the circuit and improving the stability.

In the embodiment of the present application, as shown in FIG. 6 , a DC blocking capacitor 108 may also be provided on the printed circuit board 100 ; In this way, the capacitor blocks the DC and turns on the AC, so that the interference current (AC current) generated during the charging process can be introduced into the ground pin 1016, thereby reducing the interference during the charging process and improving the charging efficiency.

In this embodiment of the present application, as shown in FIG. 7 , a first switch 109 may also be set between the first input pin 1011 and the first positive interface 102 to control the first input pin 1011 and the first positive interface 102 In this way, through the first switch 109 , the user can manually control whether the rechargeable battery 3 needs to be charged through the solar panel 2 , thereby improving the controllability of the control circuit board 1 .

In the embodiment of the present application, as shown in FIG. 8 , a second switch 110 may also be provided between the second positive terminal 104 and the third positive terminal 106 to control the connection between the second positive terminal 104 and the third positive terminal 106 The second switch 110 allows the user to manually control whether the light-emitting element 4 needs to be powered by the rechargeable battery 3 to make the light-emitting element 4 emit light, thereby improving the controllability of the control circuit board 1 .

It should be understood that, in this embodiment of the present application, the second switch 110 may also be disposed between the third negative port 107 and the second input pin 1012 , or between the second output pin 1015 and the second negative port 105 between.

It should also be noted that the first switch 109 and the second switch 110 in the embodiment of the present application include, but are not limited to, a touch switch, a button switch, and the like.

In the embodiment of the present application, as shown in FIG. 9 , an adjustable resistor 111 may also be set between the third negative electrode interface 107 and the second input pin 1012 . In this way, by adjusting the size of the adjustable resistor 111 , the light-emitting brightness of the light-emitting element 4 can be adjusted, thereby improving the controllability of the control circuit board 1 .

It should be understood that, in this embodiment of the present application, the adjustable resistor 111 may also be disposed between the second positive electrode interface 104 and the third positive electrode interface 106 .

In this embodiment of the present application, in order to avoid burning the control chip 101 when the positive and negative electrodes of the solar panel 2 are short-circuited, as shown in FIG. 10 , a protection resistor can be set between the first input pin 1011 and the first positive electrode interface 102 112 , so that the voltage is concentrated on the protection resistor 112 when the positive and negative electrodes of the solar cell panel 2 are short-circuited, thereby ensuring the safety of the control chip 101 .

To sum up, the embodiments of the present application provide a control circuit board 1 , a control chip 101 and a control system. The control circuit board 1 is connected to the solar panel 2 through the first positive interface 102 and the first negative interface 103 , and the second The positive interface 104 and the second negative interface 105 are connected to the rechargeable battery 3, and are connected to the light-emitting element 4 through the third positive interface 106 and the third negative interface 107, and the conduction of the pins is automatically controlled by the control chip 101, so as to realize On-off control between the solar panel 2, the rechargeable battery 3 and the light-emitting element 4. In this way, since the control function is integrated into the control chip, the entire control circuit board 1 needs to be set with few components, and the circuit is simple. Only the connection between the control chip 101 and each positive and negative interface needs to be designed in the circuit design. The circuit can be used, which reduces the design cost.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may also be implemented in other manners. The apparatus embodiments described above are merely illustrative.

In addition, each functional module in each embodiment of the present application may be integrated together to form an independent part, or each module may exist independently, or two or more modules may be integrated to form an independent part.

The above descriptions are merely examples of the present application, and are not intended to limit the protection scope of the present application. For those skilled in the art, various modifications and changes may be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application. It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. should be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

Claims (10)

1. A control circuit board, characterized in that, comprising: A printed circuit board; a control chip, arranged on the printed circuit board, the control chip includes a first input pin, a second input pin, a first output pin, and a second output pin; A first positive interface and a first negative interface are arranged on the printed circuit board, the first positive interface is used for connecting with the positive pole of the solar panel, and the first positive interface is connected to the first input pin connection; the first negative electrode interface is used for connecting with the negative electrode of the solar cell panel; The second positive interface and the second negative interface are arranged on the printed circuit board, the second positive interface is used for connecting with the positive pole of the rechargeable battery, and the second negative interface is used for connecting with the positive pole of the rechargeable battery The negative electrode is connected, and the second positive electrode interface is connected with the first output pin, and the second negative electrode interface is respectively connected with the second output pin and the first negative electrode interface; The third positive interface and the third negative interface are arranged on the printed circuit board, the third positive interface is used for connecting with the input end of the light-emitting element, and the third positive interface is respectively connected with the first output lead The pin and the second positive interface are connected; the third negative interface is used for connecting with the output end of the light-emitting element, and the third negative interface is also connected with the second input pin; The control chip is used to output the current input through the first input pin through the first output pin to charge the rechargeable battery; connect the second input pin to the first output pin; The two output pins are turned on, so that the light-emitting element emits light. 2. The control circuit board according to claim 1, wherein the control chip further comprises a third input pin; the third input pin is connected to the first positive interface to obtain the voltage output by the solar cell panel; The control chip is used to output the current input through the first input pin through the first output pin when the voltage output by the solar panel is greater than a preset voltage threshold, so as to charge the rechargeable The battery is charged; and when the voltage output by the solar panel is less than or equal to the preset voltage threshold, the second input pin and the second output pin are turned on, so that the light-emitting element emits light . 3. The control circuit board according to claim 2, wherein the control chip further comprises a ground pin; The ground pin is connected to the first negative interface. 4. The control circuit board according to claim 3, wherein the control circuit board further comprises: a DC blocking capacitor arranged on the printed circuit board; The second positive interface is connected to the ground pin through the DC blocking capacitor. 5. The control circuit board according to any one of claims 1-4, wherein the control circuit board further comprises: a first switch; The first switch is arranged between the first input pin and the first positive interface to control the conduction between the first input pin and the first positive interface. 6. The control circuit board according to any one of claims 1-4, wherein the control circuit board further comprises: a second switch; The second switch is disposed between the second positive terminal and the third positive terminal to control the conduction between the second positive terminal and the third positive terminal. 7. The control circuit board according to any one of claims 1-4, wherein the control circuit board further comprises: an adjustable resistor; The adjustable resistance is arranged between the third negative interface and the second input pin. 8. A control system, comprising: a solar panel, a rechargeable battery, a light-emitting element, and the control circuit board according to any one of claims 1-7; The positive electrode of the solar panel is connected to the first positive port of the control circuit board; the negative electrode of the solar panel is connected to the first negative port of the control circuit board; The positive pole of the rechargeable battery is connected to the second positive interface of the control circuit board; the negative pole of the rechargeable battery is connected to the second negative interface of the control circuit board; The input end of the light-emitting element is connected to the third positive interface of the control circuit board; the output end of the light-emitting element is connected to the third negative interface of the control circuit board. 9. A control chip, characterized in that it comprises a voltage gating circuit, a first input pin, a second input pin, a third input pin, a first output pin, and a second output pin; The three input pins are connected to the second output pin through the voltage gating circuit; the third input pin is used to connect with the positive pole of the solar panel; the second output pin is used to connect to the The negative connection of the solar panel; The third input pin is used to obtain the voltage output by the solar panel and output it to the voltage gating circuit; The voltage gating circuit is used to turn on the first input pin and the first output pin when the voltage output by the solar panel is greater than a preset voltage threshold; The second input pin and the second output pin are turned on when the voltage is less than or equal to a preset voltage threshold. 10 . The control chip according to claim 9 , wherein the control chip further comprises a ground pin; the ground pin is grounded and used for connecting with the negative electrode of the solar cell panel. 11 .