Constant current outputting adaptive LED lamp controller

Abstract

The invention discloses a self-adapting LED lamp controller capable of constant current output 350mA, which comprises a charge control circuit, a storage-battery voltage detection circuit, a solar-panel voltage detection circuit, a single chip microcomputer, a constant current circuit and a load control-protection circuit, wherein a drain electrode and a source electrode of a field effect tube of the charge control circuit are connected with negative terminals of a storage battery and a solar panel respectively; a grid electrode of the field effect tube is connected with the single chip microcomputer; one end of the storage-battery voltage detection circuit is connected with the storage battery, and the other end of the storage-battery voltage detection circuit is connected with the single chip microcomputer; one end of the solar-panel voltage detection circuit is connected with the solar panel, and the other end of the solar-panel voltage detection circuit is connected with the single chip microcomputer; one end of the constant current circuit is connected with the storage battery, and the other end of the constant current circuit is connected with a load; and the load control-protection circuit is connected to the single chip microcomputer. The controller can be used for controlling lawn lamps, garden lamps and street lamps, has the advantages of high reliability and low power consumption, and prolongs the life span of LED lamps.

Description

technical field [0001] The invention relates to an adaptive LED lamp controller capable of constant current output of 350mA. Background technique [0002] With the rapid development of LED technology, the application of LED in lighting fixtures is expanding day by day, gradually forming a scale. At present, the types of LED-based lamps are divided into garden lamps, lawn lamps, street lamps, etc., and their power consumption is only 1 / 4-1 / 10 of ordinary lamps, and their lifespan is more than 10 times longer, and they are green light sources. That is to say, for solar cells and storage batteries with the same power, the LED lights will be on for a much longer time than ordinary lights. However, the controller circuit used for LED lamps is complicated, and the general solar charging control cannot be directly used for the control of LED lamps. Usually, a control circuit needs to be added in the LED lamps, so that the control circuit of LED lamps based on solar power is compli...

AI Technical Summary

Problems solved by technology

However, the controller circuit used for LED lamps is complicated, and the general solar charging control cannot be directly used for the control of LED lamps. Usually, a control circuit needs to be added in the LED lamps, so that the control circuit of LED lamps based on solar power is complicated. Larger size, higher cost, lower reliability

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