Analysis of voltage stress in bi-directional half-bridge current-double

The leakage inductance of transformer lead to the increase of convertor voltage. In order to reduce the voltage spike of convertor, producing mechanism of voltage spike in different power flow were discussed and the control measures of voltage spike were given. At last, the simulation of the circuit was carried out and a prototype of 500 W was developed. The simulation and experiment results were given and analyzed. The correctness of the analysis was verified by the simulation and experimental result.