Efficient LED solar lamp controller

A technology of solar energy and controller, which is applied in the electronic field, can solve the problems of circuit complexity, high cost, and not being utilized, and achieve the effects of prolonging power supply time, reducing loss, and protecting batteries

Inactive Publication Date: 2008-04-23
耿华 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Usually, the output power of a solar panel and its terminal voltage have a parabolic relationship, and it changes with light intensity and temperature. In the direct charging mode, the terminal voltage of the solar panel is embedded at about 12V by the battery, which has not been utilized to the maximum extent; In order to improve the charging efficiency, it is neces

Method used

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  • Efficient LED solar lamp controller
  • Efficient LED solar lamp controller
  • Efficient LED solar lamp controller

Examples

Experimental program
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Embodiment Construction

[0020] figure 1 It is a structural diagram of high-efficiency LED solar lamps. It consists of a solar panel 1, a controller 2, a storage battery 3 and an LED lamp 4. The controller 2 includes a microprocessor 5 , a signal processing and AD sampling circuit 6 , a main circuit 7 and a man-machine interface circuit 8 .

[0021] The solar panel 1 , the storage battery 3 and the LED lamp 4 are all connected to the controller 2 . The microprocessor 5, as the core of the controller 2, is connected to the signal processing and AD sampling circuit 6, the main circuit 7 and the man-machine interface circuit 8 respectively. The signal processing and AD sampling circuit 6 modulates the terminal voltage signal of the solar panel 1 and the battery 3 , the charging current signal, the current signal and the temperature signal in the LED lamp 4 and converts them into digital signals and sends them to the microprocessor 5 . The main circuit 7 is composed of a Buck-Boost bidirectional DC-DC ...

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Abstract

The controller includes following parts: signal processing and AD sampling circuit is in charging for converting the modulated terminal voltage signals of solar panel and storage cell, charging current signal, discharging current signal, and temperature signal into digital signals, which are sent to microprocessor; being composed of bidirectional DC-DC convertor of time-sharing multiplexing Buck-Boost, sampling circuit for current, drive circuit for power tube, and loop for switching charging and discharging circuits, main circuit implements charging storage cell, and discharging LED light fixture; being as operation interface between controller and user, man machine interface circuit responds user's operation information; being in charging coordination control of whole system, microprocessor is in charge of maximum power charging control, impulsive discharging control for LED light fixture, and response to user's operation and system protection.

Description

Technical field: [0001] The utility model relates to a high-efficiency LED solar lamp controller, which belongs to the electronic technical field. Background technique: [0002] With the deepening of the concept of energy conservation and environmental protection and the development of photovoltaic technology, solar lighting systems are increasingly applied to various occasions such as streets, courtyards, and tunnels. As a green and environment-friendly DC light source, LED has attracted people's attention due to its advantages of long life, fast response and low power consumption, and is widely used in solar lighting systems. [0003] The controller is the "heart" of LED solar lamps, which directly determines its working efficiency and performance. At present, known LED solar lamp controllers have time control and light control functions, the charging method is direct charging, and the driving method is direct driving or pulse driving. When the voltage of the solar panel...

Claims

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Application Information

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IPC IPC(8): H05B37/02F21S9/03G05B15/02F21Y101/02F21Y115/10
CPCY02B20/42Y02B20/40
Inventor 耿华郭希铮王飞
Owner 耿华
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