Abstract
The paper describes the design and realization of a digital controller for a DC-DC power converter with zero-voltage switching (ZVS). The chosen power converter, usually called the phase-shifted bridge, is valuable because it combines advantages from both conventional PWM and resonant-mode power converters. It is therefore an important topology for investigating the advantages of digital control for DC-DC power converters. The power converter's control equations are nonlinear. The paper explains how the digital technique simplifies the separation of large-signal and small-signal control of the power converter. The loop updates at 25 kHz, and experimental results show the dynamic response achieved. >
Published Version
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