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

**RukyCon** · 05-03-2020, 07:11 AM

I guess i'll add a replacement driver chip to the shopping cart, just in case, will a KA7500C do as Digikey will only sell KA7500B chips in cases of 1500 (from what i can tell, the C variant is just a newer design of the same thing).

Between the chip and MOSFET appears to be 4 pairs of 1K resistors (in two parallel pairs), 4 pairs of 22 Ohm resistors (in two parallel pairs) 2 J3Y NPN Transistors, 2 2TY PNP Transistors, and 4 Diodes (and a transformer).

I'm very aware of the incandescent bulb trick and have used it in the past for testing.

05-03-2020, 07:11 AM	#8
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: 676	Re: QW-MS3010D 30V 10A Variable PSU Blown MOSFET I guess i'll add a replacement driver chip to the shopping cart, just in case, will a KA7500C do as Digikey will only sell KA7500B chips in cases of 1500 (from what i can tell, the C variant is just a newer design of the same thing). Between the chip and MOSFET appears to be 4 pairs of 1K resistors (in two parallel pairs), 4 pairs of 22 Ohm resistors (in two parallel pairs) 2 J3Y NPN Transistors, 2 2TY PNP Transistors, and 4 Diodes (and a transformer). I'm very aware of the incandescent bulb trick and have used it in the past for testing.