Presentation Description: A full-bridge converter provides an efficient solution for isolated power conversion. Within this topology the choice of control method will impact the overall performance of the converter. Most engineers only consider implementing either a hard-switched full-bridge (HSFB) or a phase-shifted full-bridge (PSFB). This presentation will demonstrate a simple modification to a pulse width modulation (PWM) controlled full-bridge which can improve efficiency by achieving zero-voltage switching (ZVS) and eliminate the resonant ringing on the transformer windings.
