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Light emitting diode (LED) folded charging lamp and control circuit thereof

A technology for controlling circuits and lamps, applied in the field of lighting, can solve the problems of small batteries, inconvenient carrying, damaged batteries, etc., and achieve the effect of not being easily damaged by collisions

Inactive Publication Date: 2012-01-11
宁波福凯电子科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[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 constant current and low-voltage protection circuits. When the battery voltage is lower than the protection voltage, the single-chip microcomputer is still outputting, and the circuit of the LED lamp has a leakage current, which will continue the power of the small battery and damage the battery; the portable LED lamps on the market today are large in size and inconvenient to carry

Method used

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  • Light emitting diode (LED) folded charging lamp and control circuit thereof
  • Light emitting diode (LED) folded charging lamp and control circuit thereof
  • Light emitting diode (LED) folded charging lamp and control circuit thereof

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Embodiment Construction

[0028] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] The logic diagram of the LED folding charging lamp control circuit in the embodiment of the present invention is as follows figure 1 As shown, the LED lighting control circuit is connected to the LED light source 900, and includes a power conversion module 100, a power selection module 200, an intelligent constant current charging management module 400, a display driving module 300, a battery module 500, a battery status judging module 1000, a voltage module 600, constant current drive module 700, and feedback network module 800; where +12V DC is connected to the power conversion module 100, power selection module 200, intelligent constant current charging managemen...

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Abstract

The invention discloses a control circuit of a light emitting diode (LED) folded charging lamp, which is connected with an LED light source and comprises a power supply module, a power supply conversion module, a power supply selection module and a constant current driving module, wherein the power supply module comprises a +12V direct current (DC) universal serial bus (USB) power supply and an internal battery, the power supply module, the power supply conversion module, the power supply selection module and the constant current driving module are sequentially connected, a feedback network, the constant current driving module and the LED light source are sequentially connected, the power supply module supplies electricity through a constant current charging management module, the current output by a constant current driving module is regulated inside the intelligent constant current charging management module, and the intelligent constant current charging management module is respectively and sequentially connected with the battery and a battery state judging module and is connected with a display driving module. When the technical scheme provided by the invention is implemented, the constant current problem in the circuit is solved.

Description

technical field [0001] The present invention relates to lighting technology, more specifically, to an LED folding charging lamp and its control circuit 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 constant current and low-voltage protection circuits. When the battery voltage is lower than the protection voltage, the microcontroller is still outputting, and the circuit of the LED lamp has a leakage current, which will continue the power of the small battery and damage the battery; the portable LED lamps on the market today are large in size and inconvenient to carry. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an LED folding rechargeable lamp and its control circuit, which ...

Claims

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Application Information

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IPC IPC(8): H05B37/02F21L4/00F21V21/14F21V23/04F21V23/06F21Y101/02
CPCY02B20/48Y02B20/40
Inventor 施军达张华平
Owner 宁波福凯电子科技有限公司
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