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需要用UC3845制作一个恒流源,用于LED照明,电流的取样点都能放在哪里 ,这个恒流值通过改变哪些值来改变

Other Parts Discussed in Thread: UC3845, TPS54201, UCC28810

需要用UC3845制作一个精准的恒流源,用于LED照明,因为它是一个双环控制,想实现对负载的恒流,我的取样点应该放在哪里?他的电流取样能放到负载后面吗?刚学习这一块,能有个方案提供就更好了,这个恒流值通过改变哪些值来改变,有什么资料可以学习吗?