Badcaps Forums - View Single Post - QW-MS3010D 30V 10A Variable PSU Blown MOSFET

**RukyCon** · 05-02-2020, 12:29 AM

How do i test the drive circuitry? as it appears the drive circuitry is driven off its own separate power supply.

The main driver IC is a KA7500B (U4), the other two chips are LM324N (low power OP-AMP) (U6) and DK112 (low power SMPS driver)(U1).

05-02-2020, 12:29 AM	#4
RukyCon A Fake Rubycon Join Date: Jan 2017 City & State: The Peoples Republic of California My Country: USA Line Voltage: 122.5VAC 59.9Hz I'm a: Knowledge Seeker Posts: 681	Re: QW-MS3010D 30V 10A Variable PSU Blown MOSFET How do i test the drive circuitry? as it appears the drive circuitry is driven off its own separate power supply. The main driver IC is a KA7500B (U4), the other two chips are LM324N (low power OP-AMP) (U6) and DK112 (low power SMPS driver)(U1).