LED lamp and control circuit thereof
A technology of LED lamps and control circuits, applied in the field of lighting, can solve the problems of circuit leakage current, no low-voltage protection circuit, battery power consumption, etc., and achieve the effect of reducing battery loss
Inactive Publication Date: 2010-08-25
OCEANS KING LIGHTING SCI&TECH CO LTD +1
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Problems solved by technology
At present, mobile LED lamps are generally powered by batteries, and this LED lamp does not have a low-voltage protection circuit. When the battery voltage is lower than the protection voltage, the single-chip microcomputer still outputs, and the circuit of the LED lamp has leakage current, which will continue to consume battery power. , thereby damaging the battery
Method used
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Embodiment Construction
[0021] Such as figure 1 As shown, in the logic diagram of Embodiment 1 of the LED lamp control circuit of the present invention, the LED lamp control circuit is connected to the LED light source, and includes a power supply module 100, a low-voltage protection module 300, a switch control module 400, and a constant current drive module 500 , a voltage stabilizing module 600 and a microcontroller module 700, and the power supply module 100 includes a battery power supply. Wherein, the power supply module 100 , the low voltage protection module 300 , the switch control module 400 and the constant current driving module 500 are connected in sequence. The power supply module 100 also supplies power to the micro-control module 700 through the low-voltage protection module 300 and the voltage stabilizing module 600 , and the micro-control module 700 regulates the current output by the constant-current drive module 500 by controlling the switch control module 400 on and off. When th...
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The invention relates to an LED lamp and a control circuit thereof; the control circuit is connected with an LED light source, and comprises a power supply module, a switch control module, a constant current driving module, a voltage stabilizing module and a micro control module, wherein the power supply module, the switch control module and the constant current driving module are sequentially connected; the power supply module supplies power to the micro control module through the voltage stabilizing module; the micro control module regulates the current output by the constant current driving module by controlling the on / off of the switch control module; the power supply module comprises a battery power supply; the control circuit also comprises a low-voltage protection module; the low-voltage protection module is used for respectively disconnect or connect the switch control module and the voltage stabilizing module when detecting that the voltage of the battery power supply is lower than the protection voltage. According to the embodiment of the technical scheme of the invention, the current leakage of the whole circuit will be reduced to microampere level, so as to reduce the battery loss.
Description
technical field [0001] The invention relates to lighting technology, more specifically, to an LED lamp and a control circuit thereof. Background technique [0002] LED light sources have the advantages of high efficiency, energy saving, long life, and low-voltage controllability, so they are widely used in various lamps. At present, mobile LED lamps are generally powered by batteries, and this LED lamp does not have a low-voltage protection circuit. When the battery voltage is lower than the protection voltage, the single-chip microcomputer still outputs, and the circuit of the LED lamp has leakage current, which will continue to consume battery power. , thereby damaging the battery. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an LED lamp and its control circuit, which can reduce the leakage current to microampere class. [0004] The technical solution adopted by the present invention to solve the technica...
Claims
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IPC IPC(8): H05B37/02F21S2/00F21V23/00F21Y101/02
Inventor 周明杰王学军
Owner OCEANS KING LIGHTING SCI&TECH CO LTD