Analysis and Design of a Novel Dual Secondary Winding and Dual Power Bridge High Frequency Link Inverter

A novel dual secondary winding and dual power bridge high frequency link (HLF) inverter is discussed in this paper. Single-stage power conversion, standard half-bridge connection of devices, soft-switching for all the power devices (ZVS or ZCS), low conduction loss, simple bipolar combined phase-shifted control, and high efficiency are among the salient features of the HLF inverter. The principles of circuit operation, PWM control and synthesis, topological extension are discussed. The theoretical analysis is presented and the realization of power stage and close loop control is described. The experimental results are given to validate the effectiveness of analytical result and operation principle of the circuit