The phase-shifted full-bridge converter (PSFB) is common in high-performance power supplies with fast transient response, high power density and high converter efficiency. This topic reviews PSFB operation principles, characteristics of the PSFB, different types of rectifiers, clamp options, converter control modes, synchronous rectifier operation modes and light-load management options. A PSFB design based on the Modular Hardware-System-Common Redundant Power Supply (M-CRPS) base specification demonstrates the ability of a PSFB – with an active clamp circuit – to achieve a high-power design with a high transient response.