An Analysis of a Transformerless Dual Active Half-Bridge Converter

Abstract This paper proposes a transformerless dual half-bridge converter (TLDAHB). By eliminating the transformer and harnessing possibility of using low inductor value, it is possible to minimise size converter. A phase-shift pulse width modulation will result in wide controlled voltage gain operation as buck boost. The theoretical topology analysis, simulation, experimental results are presented. Theoretical analysis consists power transfer design. In case research, particular attention was paid efficiency analysis. Near zero switching transient with high efficiency.