Author(s)

Xiao Hailiu, Wei Yanping

Corresponding Author

Xiao Hailiu

Abstract

This paper designs a new type of LED driving circuit. The circuit system is mainly composed of a main control unit and a driving unit. The main control unit is composed of a single-chip microcomputer to realize data acquisition and processing. The driving unit is constructed with a NPN transistor 8050. The circuit also has the functions of automatic dimming and fault self-diagnosis and alarm. The software part of the system is implemented in C language. In order to verify the correctness of the drive circuit design, the paper also carried out a test. The test results show that the circuit system not only has the advantages of fast response speed, simple operation, but also low cost of the drive circuit, can achieve high efficiency and energy saving of LED.

Keywords

Led, Drive Circuit, Fault Self-Diagnosis, High Efficiency And Energy Saving