A-Source-Based Half-Bridge Inverter: Analysis, Design, and Implementation

This article introduces a new half-bridge inverter that employs Z-source technology to achieve a high boost factor without blocking high voltage on passive or active devices. This configuration includes the coupled inductors shaped in the A-source form, which is why the proposed topology is referred to as an A-source-based half-bridge inverter. The operation modes of the proposed topology are analyzed based on the states of diodes and switches in each state. The boost factor, average currents, and voltages related to the passive components are calculated, and equations are derived to estimate the size of required inductors and capacitors and the ratings of the switches and diodes. Furthermore, the topology’s efficiency is analyzed through power loss studies. A comparison of the proposed topology with past configurations reveals its advantages and disadvantages, demonstrating its capacity to provide a high boost factor while having superior specifications than some of them. Finally, an experimental sample of the proposed topology is tested in the laboratory to ensure proper operation and to compare its power losses and efficiency with other past works.