Circuit of LCD circuit in a poor light

The utility model discloses a circuit of LCD circuit in a poor light, including backlight driving chip, backlight driving chip's power termination input voltage is connected with backlight driving chip's power output end behind this power end series connection power inductance, and backlight driving chip's power output end is connected with the anode of the LED banks that is shaded from the sun, and ground connection behind the negative terminal series resistor of the LED banks that is shaded from the sun is connected with backlight driving chip's feedback end to the negative terminal of the LED banks that is shaded from the sun. The utility model has the advantages of simple structure and reasonable design, can adjust luminance, the volume is less simultaneously, can be used for the lesselectronic product of some volumes. 本实用新型公开了种LCD背光电路的电路，包括背光驱动芯片，背光驱动芯片的电源端接输入电压，该电源端串联功率电感后与背光驱动芯片的电源输出端连接，背光驱动芯片的电源输出端与背光LED灯组的正端连接，背光LED灯组的负端与背光驱动芯片的反馈端连接，背光LED灯组的负端串联电阻器后接地。本实用新型结构简单、设计合理，能够调节亮度，同时体积较小，能够用于些体积较小的电子产品。