Will be very useful, especially in electronic laboratory power supply dc voltage between 0 and 0 to 350V current is adjustable from 400mA. 4 on the power stage MOSFET spw20n60s5 control lm712 op amp used on the floor. Clean... Electronics Projects, 0-350V High Voltage Laboratory Power Supply Circuit "power electronic projects, power supply circuit, power supply project, " Date 2019/08/03