| 1. | Next , the global system architecture is presented upon the design requirements . due to the fact that constant current is required for driving led , as a result , different from conventional current - mode converter with both output voltage and inductor current feedback loop , the proposed converter adopt dual current feedback loop that both inductor current and output current are detected to provide a stable output current for led
在整体结构设计中,与典型的电流模式采用电感电流反馈环路和输出电压反馈环路不同,本文针对驱动led需要电流稳定的特点,采用双电流反馈环路,即电感电流环路和负载led电流环路,这样就能对负载led电流做出快速响应,通过反馈环路达到稳定led电流的目的。 |
