Solar LED lamp controller circuit
By combining the solar control module and the light control module, constant current and voltage regulation of the LED lamp is achieved under low power conditions, which solves the problem of poor lighting effect under low power conditions and improves the lighting efficiency and service life of the LED lamp.
Patent Information
- Application Number
- CN202422137802.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-09-02
AI Technical Summary
Existing solar LED lights experience a drop in power supply voltage when the battery is low, which reduces the lighting effect and affects their lifespan.
A solar control module is used for photoelectric conversion and voltage regulation. Combined with a light control module, constant current and voltage regulation is performed when there is no light. When the low power detection module detects insufficient power, it disconnects the lighting operation of the second LED light control module to ensure that the first LED light module provides normal lighting.
It improves the lighting efficiency and lifespan of LED lights, ensuring normal illumination even when the battery is low.
Smart Images
Figure CN223829489U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of led lamp, specifically a solar led lamp controller circuit. BACKGROUND
[0002] LED (Light Emitting Diode) is a kind of solid-state semiconductor device that can convert electric energy into visible light, it can directly convert electricity into light, to reduce carbon emissions, reduce energy consumption, the existing LED lamp generally adopts the mode of solar power supply, and automatically illuminates when there is no light, but in the state of low power, due to the decrease of supply voltage, it will lead to the decrease of lighting effect of LED lamp, affect the service life of LED lamp, therefore, it needs to be improved. SUMMARY
[0003] The utility model embodiment provides a solar led lamp controller circuit to solve the problem in the background art.
[0004] To achieve the above object, the utility model provides the following technical scheme:
[0005] A kind of solar led lamp controller circuit, comprising: solar control module, energy storage module, low power detection module, light control module, drive adjustment module, first led lamp module and second led lamp control module;
[0006] Solar control module is used to carry out photoelectric conversion and carry out voltage regulation processing to converted electric energy, output first electric energy;
[0007] Energy storage module is connected with the solar control module, for receiving and storing first electric energy, releasing stored electric energy and providing second electric energy;
[0008] Low power detection module is connected with the energy storage module, for detecting the electric energy of energy storage module and outputting first control signal when the detected signal is lower than the set low power threshold;
[0009] Light control module is connected with the energy storage module, for receiving second electric energy and carrying out illumination detection, when there is no light, the received second electric energy is transmitted to drive adjustment module;
[0010] Drive adjustment module is connected with the light control module, energy storage module and low power detection module, for carrying out constant current voltage regulation processing to second electric energy transmitted by light control module and outputting third electric energy, when receiving first control signal, the voltage of third electric energy is reduced;
[0011] First led lamp module is connected with the drive adjustment module and energy storage module, for receiving third electric energy and carrying out illumination work;
[0012] The second LED light control module is connected to the first LED light module and the low battery detection module. It is used to connect in series with the first LED light module and perform lighting work. When it receives the first control signal, it stops the lighting work and controls the lighting work of the first LED light module.
[0013] As a further embodiment of this utility model: the solar control module includes a photovoltaic panel, a first capacitor, a first voltage regulator, a first diode, a first inductor, a second diode, a second capacitor, a first resistor, and a second resistor; the energy storage module includes an energy storage device;
[0014] Preferably, the first end of the photovoltaic panel is connected to the second end of the first voltage regulator and one end of the first capacitor; the fifth end of the first voltage regulator is connected to one end of the second resistor and grounded through the first resistor; the third end of the first voltage regulator is connected to the cathode of the first diode and connected to the anode of the second diode and the other end of the second resistor through the first inductor; the cathode of the second diode is connected to the first end of the energy storage device and connected to the second end of the energy storage device, the anode of the first diode, the fourth end of the first voltage regulator, the other end of the first capacitor, the second end of the photovoltaic panel, and the ground terminal through the second capacitor.
[0015] As a further embodiment of this utility model: the light control module includes a third resistor, a first photoresistor, a fourth resistor, a first switching transistor, and a first power transistor;
[0016] Preferably, one end of the third resistor is connected to the source of the first power transistor and the first terminal of the energy storage device, and is connected to the gate of the first power transistor and the collector of the first switching transistor through the fourth resistor. The other end of the third resistor is connected to the base of the first switching transistor, and is connected to the emitter of the first switching transistor and the ground terminal through the first photoresistor. The drain of the first power transistor is connected to the drive adjustment module.
[0017] As a further embodiment of this utility model: the drive adjustment module includes a sixth resistor, a fifth resistor, a seventh resistor, a second switching transistor, a first driver, a third diode, a second power transistor, a second inductor, a fourteenth resistor, an eighth resistor, and a third capacitor;
[0018] Preferably, the eighth and sixth terminals of the first driver are connected to the drain of the first power transistor and connected to one end of the seventh resistor, one end of the fifth resistor, and the first terminal of the first driver through the sixth resistor. The other end of the seventh resistor is connected to the collector of the second switching transistor. The emitter of the second switching transistor is connected to the other end of the fifth resistor, the fourth terminal of the first driver, the seventh terminal of the first driver, and ground. The second terminal of the first driver is grounded through the fourteenth resistor. The fifth terminal of the first driver is connected to the gate of the second power transistor. The source of the second power transistor is connected to the third terminal of the first driver and grounded through the eighth resistor. The cathode of the third diode is connected to the first terminal of the third capacitor and the first terminal of the energy storage device. The drain of the second power transistor is connected to the anode of the third diode and connected to the second terminal of the third capacitor through the second inductor. The base of the second switching transistor is connected to the low-power detection module.
[0019] As a further embodiment of this utility model: the first LED light module includes a first LED light; the second LED light control module includes a third power transistor, a fourth power transistor, a ninth resistor, and a second LED light;
[0020] Preferably, the first terminal of the first LED is connected to the first terminal of the third capacitor, the second terminal of the first LED is connected to the source of the third power transistor and the drain of the fourth power transistor, the drain of the third power transistor is connected to the first terminal of the second LED, and the gate of the third power transistor is connected to the gate of the fourth power transistor and the low battery detection module, and is connected to the source of the fourth power transistor, the second terminal of the second LED, and the ground terminal through the ninth resistor.
[0021] As a further embodiment of this utility model: the low battery detection module includes a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a first power supply, and a first comparator;
[0022] Preferably, the inverting input of the first comparator is connected to one end of the eleventh resistor and then to the first end of the energy storage device through the tenth resistor; the non-inverting input of the first comparator is connected to one end of the thirteenth resistor and then to the first power supply through the twelfth resistor; the other end of the eleventh resistor is connected to the other end of the thirteenth resistor and the second end of the energy storage device; and the output of the first comparator is connected to the base of the second switching transistor and the gate of the fourth power transistor.
[0023] Compared with the prior art, the beneficial effects of this utility model are as follows: The solar LED lamp controller circuit of this utility model uses a solar control module for photoelectric conversion and voltage regulation to provide charging power to the energy storage module. The light control module detects the ambient light conditions and automatically controls the drive regulation module to perform constant current and voltage regulation of the input power when there is no light, so as to drive the first LED lamp module and the second LED lamp control module to perform series lighting. When the low power detection module detects that the power of the energy storage module is insufficient, it will disconnect the lighting operation of the second LED lamp control module and adjust the power value output by the drive regulation module to meet the normal lighting operation of the first LED lamp module, thereby improving lighting efficiency and LED lamp life. Attached Figure Description
[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is a schematic block diagram of a solar LED lamp controller circuit provided as an example of the present invention.
[0026] Figure 2 A circuit diagram of a solar LED lamp controller circuit provided for this utility model example.
[0027] Figure 3 The connection circuit diagram of the low battery detection module provided in this utility model embodiment. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] In one embodiment, see Figure 1 A solar LED light controller circuit includes: a solar control module 1, an energy storage module 2, a low power detection module 3, a light control module 4, a drive adjustment module 5, a first LED light module 6, and a second LED light control module 7.
[0030] Specifically, the solar control module 1 is used to perform photoelectric conversion and to regulate and standardize the converted electrical energy to output the first electrical energy;
[0031] Energy storage module 2, connected to the solar control module 1, is used to receive and store first electrical energy, release the stored electrical energy and provide second electrical energy;
[0032] The low power detection module 3 is connected to the energy storage module 2 and is used to detect the amount of electrical energy stored in the energy storage module 2 and output a first control signal when the detected signal is lower than the set low power threshold.
[0033] The light control module 4 is connected to the energy storage module 2 and is used to receive the second electrical energy and perform light detection. When there is no light, the received second electrical energy is transmitted to the drive adjustment module 5.
[0034] The drive adjustment module 5 is connected to the light control module 4, the energy storage module 2 and the low power detection module 3. It is used to perform constant current and voltage regulation on the second electrical energy transmitted by the light control module 4 and output the third electrical energy. When the first control signal is received, the voltage of the third electrical energy is reduced.
[0035] The first LED light module 6 is connected to the drive adjustment module 5 and the energy storage module 2, and is used to receive third electrical energy and perform lighting work.
[0036] The second LED light control module 7 is connected to the first LED light module and the low battery detection module 3. It is used to connect in series with the first LED light module and perform lighting work. When it receives the first control signal, it stops the lighting work and controls the lighting work of the first LED light module 6.
[0037] In a specific embodiment, the aforementioned solar control module 1 can be a solar control circuit composed of photovoltaic panels, voltage regulators, inductors, etc., which can perform photoelectric conversion and regulate the converted electrical energy through voltage regulation; the aforementioned energy storage module 2 can be an energy storage circuit composed of energy storage devices, which can perform energy storage and discharge operations; the aforementioned low power detection module 3 can be a low power detection circuit composed of resistors, comparators, and reference power supplies, which can set a low power threshold, detect the power of the energy storage module 2, and determine the relationship between the detected power signal and the low power threshold; the aforementioned light control module 4 can be a light control circuit composed of photoresistors, resistors, field-effect transistors, and transistors, which can detect ambient light conditions and control the transmission of electrical energy; the aforementioned drive adjustment module 5 can be a drive adjustment circuit composed of drivers, resistors, field-effect transistors, etc., which can perform constant current and voltage regulation on the input electrical energy and regulate the output electrical energy; the aforementioned first LED lamp module 6 can be a first LED lamp circuit composed of LED lamps, which performs lighting operations; the aforementioned second LED lamp control module 7 can be a second LED lamp control circuit composed of LED lamps, field-effect transistors, and resistors, which performs lighting operations.
[0038] In another embodiment, please refer to Figure 1 , Figure 2 and Figure 3 The solar control module 1 includes a photovoltaic panel, a first capacitor C1, a first voltage regulator IC1, a first diode D1, a first inductor L1, a second diode D2, a second capacitor C2, a first resistor R1, and a second resistor R2; the energy storage module 2 includes an energy storage device.
[0039] Specifically, the first end of the photovoltaic panel is connected to the second end of the first voltage regulator IC1 and one end of the first capacitor C1. The fifth end of the first voltage regulator IC1 is connected to one end of the second resistor R2 and grounded through the first resistor R1. The third end of the first voltage regulator IC1 is connected to the cathode of the first diode D1 and connected to the anode of the second diode D2 and the other end of the second resistor R2 through the first inductor L1. The cathode of the second diode D2 is connected to the first end of the energy storage device and connected to the second end of the energy storage device, the anode of the first diode D1, the fourth end of the first voltage regulator IC1, the other end of the first capacitor C1, the second end of the photovoltaic panel, and the ground terminal through the second capacitor C2.
[0040] In a specific embodiment, the first voltage regulator IC1 can be a TD1401 chip; the energy storage device can be a battery pack.
[0041] Furthermore, the light control module 4 includes a third resistor R3, a first photoresistor RG1, a fourth resistor R4, a first switching transistor V1, and a first power transistor Q1;
[0042] Specifically, one end of the third resistor R3 is connected to the source of the first power transistor Q1 and the first end of the energy storage device, and is connected to the gate of the first power transistor Q1 and the collector of the first switching transistor V1 through the fourth resistor R4. The other end of the third resistor R3 is connected to the base of the first switching transistor V1, and is connected to the emitter of the first switching transistor V1 and the ground through the first photoresistor RG1. The drain of the first power transistor Q1 is connected to the drive adjustment module 5.
[0043] In a specific embodiment, the first photoresistor RG1 exhibits a high resistance state in the absence of light and a low resistance state in the presence of light; the first switching transistor V1 can be an NPN transistor; and the first power transistor Q1 can be a P-channel MOSFET.
[0044] Furthermore, the drive adjustment module 5 includes a sixth resistor R6, a fifth resistor R5, a seventh resistor R7, a second switch V2, a first driver IC2, a third diode D3, a second power transistor Q2, a second inductor L2, a fourteenth resistor R14, an eighth resistor R8, and a third capacitor C3.
[0045] Specifically, the eighth and sixth terminals of the first driver IC2 are connected to the drain of the first power transistor Q1 and connected to one end of the seventh resistor R7, one end of the fifth resistor R5, and the first terminal of the first driver IC2 through the sixth resistor R6. The other end of the seventh resistor R7 is connected to the collector of the second switch transistor V2. The emitter of the second switch transistor V2 is connected to the other end of the fifth resistor R5, the fourth terminal of the first driver IC2, the seventh terminal of the first driver IC2, and the ground terminal. The second terminal of the first driver IC2 is grounded through the fourteenth resistor R14. The fifth terminal of the first driver IC2 is connected to the gate of the second power transistor Q2. The source of the second power transistor Q2 is connected to the third terminal of the first driver IC2 and grounded through the eighth resistor R8. The cathode of the third diode D3 is connected to the first terminal of the third capacitor C3 and the first terminal of the energy storage device. The drain of the second power transistor Q2 is connected to the anode of the third diode D3 and connected to the second terminal of the third capacitor C3 through the second inductor L2. The base of the second switch transistor V2 is connected to the low-power detection module 3.
[0046] In a specific embodiment, the first driver IC2 can be an XLT604 chip, and linear brightness adjustment control is performed by the sixth resistor R6, the seventh resistor R7, the fifth resistor R5, and the second switch V2, wherein the second switch V2 can be an NPN transistor; the second power transistor Q2 can be an N-channel MOSFET.
[0047] Furthermore, the first LED light module 6 includes a first LED light; the second LED light control module 7 includes a third power transistor Q3, a fourth power transistor Q4, a ninth resistor R9, and a second LED light;
[0048] Specifically, the first terminal of the first LED is connected to the first terminal of the third capacitor C3, the second terminal of the first LED is connected to the source of the third power transistor Q3 and the drain of the fourth power transistor Q4, the drain of the third power transistor Q3 is connected to the first terminal of the second LED, the gate of the third power transistor Q3 is connected to the gate of the fourth power transistor Q4 and the low battery detection module 3, and is connected to the source of the fourth power transistor Q4, the second terminal of the second LED and the ground terminal through the ninth resistor R9.
[0049] In a specific embodiment, the third power transistor Q3 can be a P-channel MOSFET, and the fourth power transistor Q4 can be an N-channel MOSFET.
[0050] Furthermore, the low battery detection module 3 includes a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a first power supply VCC1, and a first comparator A1;
[0051] Specifically, the inverting input of the first comparator A1 is connected to one end of the eleventh resistor R11 and then to the first end of the energy storage device through the tenth resistor R10. The non-inverting input of the first comparator A1 is connected to one end of the thirteenth resistor R13 and then to the first power supply VCC1 through the twelfth resistor R12. The other end of the eleventh resistor R11 is connected to the other end of the thirteenth resistor R13 and the second end of the energy storage device. The output of the first comparator A1 is connected to the base of the second switching transistor V2 and the gate of the fourth power transistor Q4.
[0052] In a specific embodiment, the first power supply VCC1, the twelfth resistor R12, and the thirteenth resistor R13 provide a low charge threshold; the first comparator A1 can be an LM358 comparator.
[0053] In this embodiment of a solar LED lamp controller circuit, a photovoltaic panel performs photoelectric conversion. The converted electrical energy is regulated and filtered by a first voltage regulator IC1 in conjunction with a first diode D1, a first inductor L1, a second diode D2, a second capacitor C2, a first resistor R1, and a second resistor R2, and is stored in an energy storage device. In the absence of light, the first photoresistor RG1 exhibits a high resistance state, the first switching transistor V1 conducts, the first power transistor Q1 conducts, and the electrical energy released by the energy storage device is transmitted to the first driver IC2. The first driver IC2, in conjunction with a sixth resistor R6, a fifth resistor R5, a fourteenth resistor R14, and an eighth resistor R8, adjusts the conduction level of the second power transistor Q2, thereby regulating the input to the first and second LED lamps. The third power transistor Q3 is turned on due to the grounding of the ninth resistor R9. The first LED and the second LED are connected in series, and the first LED and the second LED will be used for series lighting. When the energy storage device sampled by the tenth resistor R10 and the eleventh resistor R11 is lower than the low energy threshold set by the first power supply VCC1, the eleventh and thirteenth resistors R13, the first comparator A1 will output a high level and control the second switch V2 to turn on, the fourth power transistor Q4 to turn on, and the third power transistor Q3 to turn off, disconnecting the second LED and allowing the first LED to provide lighting alone. At the same time, the seventh resistor R7 and the fifth resistor R5 are connected in parallel to reduce the power voltage output by the drive adjustment module 5 to meet the power supply of the first LED.
[0054] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0055] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A solar LED lamp controller circuit, characterized in that, The solar LED light controller circuit includes: a solar control module, an energy storage module, a low battery detection module, a light control module, a drive adjustment module, a first LED light module, and a second LED light control module; The solar energy control module is used to perform photoelectric conversion and to regulate and stabilize the converted electrical energy, and output the first electrical energy. The energy storage module is connected to the solar control module and is used to receive and store the first electrical energy, release the stored electrical energy and provide the second electrical energy. The low power detection module is connected to the energy storage module and is used to detect the amount of electrical energy stored in the energy storage module and output a first control signal when the detected signal is lower than the set low power threshold. The light control module is connected to the energy storage module and is used to receive the second electrical energy and perform light detection. When there is no light, the received second electrical energy is transmitted to the drive adjustment module. The drive adjustment module is connected to the light control module, the energy storage module and the low power detection module. It is used to perform constant current and voltage regulation on the second electrical energy transmitted by the light control module and output the third electrical energy. When the first control signal is received, the voltage of the third electrical energy is reduced. The first LED light module is connected to the drive adjustment module and the energy storage module, and is used to receive third electrical energy and perform lighting work; The second LED light control module is connected to the first LED light module and the low battery detection module. It is used to connect in series with the first LED light module and perform lighting work. When it receives the first control signal, it stops the lighting work and controls the lighting work of the first LED light module. The drive adjustment module includes a sixth resistor, a fifth resistor, a seventh resistor, a second switching transistor, a first driver, a third diode, a second power transistor, a second inductor, a fourteenth resistor, an eighth resistor, and a third capacitor; The eighth and sixth terminals of the first driver are connected to the drain of the first power transistor and connected to one end of the seventh resistor, one end of the fifth resistor, and the first terminal of the first driver through the sixth resistor. The other end of the seventh resistor is connected to the collector of the second switching transistor. The emitter of the second switching transistor is connected to the other end of the fifth resistor, the fourth terminal of the first driver, the seventh terminal of the first driver, and the ground terminal. The second terminal of the first driver is grounded through the fourteenth resistor. The fifth terminal of the first driver is connected to the gate of the second power transistor. The source of the second power transistor is connected to the third terminal of the first driver and grounded through the eighth resistor. The cathode of the third diode is connected to the first terminal of the third capacitor and the first terminal of the energy storage device. The drain of the second power transistor is connected to the anode of the third diode and connected to the second terminal of the third capacitor through the second inductor. The base of the second switching transistor is connected to the low-power detection module. The first LED light module includes a first LED light; the second LED light control module includes a third power transistor, a fourth power transistor, a ninth resistor, and a second LED light. The first end of the first LED is connected to the first end of the third capacitor, the second end of the first LED is connected to the source of the third power transistor and the drain of the fourth power transistor, the drain of the third power transistor is connected to the first end of the second LED, and the gate of the third power transistor is connected to the gate of the fourth power transistor and the low power detection module, and is connected to the source of the fourth power transistor, the second end of the second LED, and the ground through the ninth resistor. The low battery detection module includes a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a first power supply, and a first comparator; The inverting input of the first comparator is connected to one end of the eleventh resistor and then to the first end of the energy storage device through the tenth resistor. The non-inverting input of the first comparator is connected to one end of the thirteenth resistor and then to the first power supply through the twelfth resistor. The other end of the eleventh resistor is connected to the other end of the thirteenth resistor and the second end of the energy storage device. The output of the first comparator is connected to the base of the second switching transistor and the gate of the fourth power transistor.
2. The solar LED lamp controller circuit according to claim 1, characterized in that, The solar control module includes a photovoltaic panel, a first capacitor, a first voltage regulator, a first diode, a first inductor, a second diode, a second capacitor, a first resistor, and a second resistor; the energy storage module includes an energy storage device. The first end of the photovoltaic panel is connected to the second end of the first voltage regulator and one end of the first capacitor. The fifth end of the first voltage regulator is connected to one end of the second resistor and grounded through the first resistor. The third end of the first voltage regulator is connected to the cathode of the first diode and connected to the anode of the second diode and the other end of the second resistor through the first inductor. The cathode of the second diode is connected to the first end of the energy storage device and connected to the second end of the energy storage device, the anode of the first diode, the fourth end of the first voltage regulator, the other end of the first capacitor, the second end of the photovoltaic panel, and the ground terminal through the second capacitor.
3. The solar LED lamp controller circuit according to claim 2, characterized in that, The light control module includes a third resistor, a first photoresistor, a fourth resistor, a first switching transistor, and a first power transistor; One end of the third resistor is connected to the source of the first power transistor and the first terminal of the energy storage device, and is connected to the gate of the first power transistor and the collector of the first switching transistor through the fourth resistor. The other end of the third resistor is connected to the base of the first switching transistor, and is connected to the emitter of the first switching transistor and the ground terminal through the first photoresistor. The drain of the first power transistor is connected to the drive adjustment module.