为实现LED驱动,采用恒流源驱动方式和片上可编程系统(PSoC),设计了一种低成本新型恒流源驱动器件.该驱动器可在输入电压变化较大的情况下工作,且输出恒流可调、精确度高.同时,通过采用发射芯片CYRF7936,实现了系统的智能控制.实践证明,该器件也可在多种需要恒流源的场合下使用,具有一定的实用性及经济性.%To implement LED drive, by using constant source current driving measure and programmable system-on-chip {PSoC}, a new type of low-cost constant-cm rent source device is designed. The driver can work under condition with bigger input voltage changes, and output constant current is accurate and adjustable. In addition, through transmitting chip CYRF7936, intelligent control of the system is realized. The practice verifies that the device can be uaed in many sites requring constant current Bources and is practical and economical.
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