PFC BOOST
PFC and OUTPUT PWM CONTROL
BIAS and 5VSB SUPPLY
FORWARD CONVERTER
Schematic of 250W ATX power supply with active PFC (reverse engineered by Vladimir Davydov). Annotated by http://www.smpspowersupply.com/
ERROR AMPLIFIER FOR COMBINED REGULATION OF 5V and 12V
STATUS and PROTECTION CIRCUITS
MAGAMP REGULATOR for 3.3V OUTPUT
FAN CONTROL
OV PROTECTION
COUPLED INDUCTOR