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DLPA3000: 点亮单通道的LED,LED驱动电路,有很大的“吱吱”声,

Part Number: DLPA3000


负载增大“吱吱”声也会随着增大,12V输入和输出的电容都调整了很多参数,“吱吱”声依然没有改善。这是12V输入,电源波动,频率刚好在100HZ,包括后级输出,也有同样的问题,频率也是100HZ,