Full-bridge current mode high-frequency link inverters

Abstract

The full-bridge current mode high frequency link inverter based on the flyback topology consists of a HF inverter, a HF transformer and a cycloconverter. Its HF transformer enables energy storage as well as electrical isolation and voltage level adjustment. The inherent voltage surge problem in voltage mode HP link inverters is solved and switch loss of the cycloconverter is reduced in this inverter. Its basic operation principles, the instantaneous voltage control scheme, and brief design procedure are described in the paper. Simulation and experimental results of the experimental prototype verified that it has the following advantages such as compact topology, simple HF transformer structure, simple control scheme, good dynamic response, nonlinear load capacity and low voltage stress of switches.