ATX SMPS half bridge circuit modified version of the computer power supply circuit output for high voltage power transformer ei33-2 symmetrical re-wrapped. 300 watts of power input voltage 240v AC output voltage + – + 20volt – 45volt set.... Electronics Projects, Modified ATX Power Supply Half Bridge SMPS Project TL494 EI33 "power electronic projects, smps circuits, smps projects, smps schematic, tl494 circuit, " Date 2019/08/02