Assuming 75% efficiency (which is a common value for very low-end power supplies), this bridge would allow the power supply to deliver only up to 258.75 W.click to enlargeFigure 9: Rectifying bridgeThe electrolytic capacitors of the voltage doubler circuit are from Fhy and labeled at 85?? C.This power supply uses two 13007 NPN power transistors in its switching section, using the half-bridge topol