Hello, I checked CMPSS TRIPOUT signal again. Below waveform is measured when output load is fixed. Output voltage is operating normal, than suddenly happened peak voltage. When happened peak voltage, Icommand dose not change. And Main transformer current is increase. also MCU input Main transformer current increase too. But There is no CMPSS TRIPOUT signal. What do you think? CH1 12Vmain CH3 CMPSS TRIPOUT signal CH4 MCU input Main transformer current CH6 Main transformer current CH8 Icommand Regards, Sangmo Kim.
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