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LED Constant current mode

【发表时间:2019/4/30】 【阅读次数:45】

      At present, LED driver chips can be divided into three types: constant voltage driver chips, constant current driver chips and pulse driver chips. Constant current mode: a. The output current of constant current drive circuit is constant, while the output DC voltage varies in a certain range with the magnitude of load resistance. Load resistance value is small, output voltage is low, load resistance value is bigger, output voltage is higher; B. Constant current drive circuit is not afraid of load short circuit, but it is strictly forbidden to open the load completely. C. Constant current drive circuit is ideal for driving LED, but relatively expensive. D. We should pay attention to the maximum withstanding current and voltage value, which limits the use of LED.

  Hunan Yuansheng Electronic Co., Ltd all products use constant current driver, Quality good, Warranty 5 years.


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