Driving device of automobile LED (light emitting diode) steering lamp

汽车led转向灯驱动电路

Abstract

The invention discloses a driving device of an automobile LED (light emitting diode) steering lamp. The driving circuit comprises an amplifying circuit, a driving circuit, a detection circuit and a feedback circuit, wherein the amplifying circuit is respectively connected with the output end of a MCU (microprocessor control unit), a level power source and the driving circuit, the driving circuit is respectively connected with the detection circuit, the feedback circuit and a load of the LED steering lamp, the feedback circuit is connected with the amplifying circuit, and the detection circuit is connected with the AD (analog-digital) input end of the MCU. The driving circuit has the advantages that the short-circuiting fault and the lamp falling fault of the load of the LED steering clamp can be identified, the circuit is simple, the use amount of component devices is fewer, the cost is reduced, the property is stable and reliable, the batch production is realized, the portability is high, the driving circuit can be directly used on any type of automobile body controller, the development speed, working efficiency and market competitiveness of products is improved, the development time of the products is shortened, and the development cost is reduced.
本发明公开了一种汽车LED转向灯驱动电路,包括放大电路、驱动电路、检测电路和反馈电路;放大电路分别连接MCU的输出端、电平电源和驱动电路;驱动电路分别连接检测电路、反馈电路和LED转向灯负载;反馈电路连接放大电路;检测电路连接MCU的AD输入端。本发明可以识别LED转向灯负载的短路故障和掉灯故障,电路简单,所用元器件少、降低了成本,且性能稳定可靠,能批量生产,可以移植性强,可在任意一款汽车车身控制器上直接使用,提高了产品的开发速度、工作效率和市场竞争力,降低了产品的开发时间和开发成本。

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Patent Citations (3)

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    CN-103716957-AApril 09, 2014青岛歌尔声学科技有限公司一种发光二极管led控制电路和方法
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    CN-204259221-UApril 08, 2015河南天海电器有限公司Automobile LED steering lamp driving circuit

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