A Z-Source Half-Bridge Converter

A novel Z-source half-bridge converter is presented, in which less LC components are needed compared to the conventional one.

Inspired by the Z-source converter, this model has proposed a novel Z-source half-bridge converter that can output buck– boost voltages. Different from the Z-source converter, it needs only one LC Z-network between the input capacitors and the switches. Additionally, the novel converter is more stable than the conventional one according to the analysis of the midpoint balance of input capacitors. Moreover, the converter has been analyzed in two different states, including the shoot-through and non-shoot-through states. Furthermore, the feature of the proposed converter owning abundant outputs under an appropriate control is very desirable for requirements of the electrochemical power supply. Finally, simulations have been carried out to verify the effectiveness of the proposed converter.