AT-ATX Transformer TL494 IGBT IR2110 13.8V 200W Power Supply

In the power supply device, TL494 integrated circuit is used for PWM control, power transistors are IGBT (or mosfet), IR2110 integrated circuit is used instead of transformer for driver. Power transformer is EI33, ERL35 etc. found in AT-ATX computer power supplies.

Short circuit and overload protection is available. 13.8V / 8A (short-term 12A) If the output voltage drops below 8V for any reason during operation, the power supply shuts down. PCB design is made according to the most commonly used connection type in power transformer, sometimes transformer terminals may be different, check the card you removed and use it.

TL494 IGBT Power Supply Circuit Diagram

source: lz4gv.com/PowerSupply_AC220V.html