上傳采樣電路,各位有興趣的大蝦幫看看1124621224.doc

the quality of resistor is too poor.what type are the resistors? Carbon type is better than metal oxide type in term of voltage withstanding. You can consider to select "metal grace" type, which cost is high.

你用的電阻功率太小,換2W的.你自己算一下就知道了.

謝謝指點(diǎn)!