High-Frequency Full-Bridge Power Converter in Photovoltaic Applications using Phase-Shifted PWM Technique

This paper presents a phase shift converter in a photovoltaic system for controlling the energy produced by a solar cell using a phase shift switch principle. By the full-bridge converter circuit technology, using the phase shift principle of the switch on the primary side of the high-frequency transformer, the power switch can be controlled to achieve a zero-switching condition, and the secondary side of the high-frequency transformer uses the circuit. Synchronous switching rectifiers convert AC voltage to DC power to enable high current applications with two filtering inductors to help reduce losses and dissipate heat, resulting in an efficient system. The proposed method controls the input voltage of the phase-shifted full-bridge converter phase shift circuit at 400 V and achieves the required voltage of 48 V over the zero-switching range.