| Title |
Development of 12V, 1000A Isolated Bidirectional Resonant DC-DC Converter |
| Authors |
Jun-Sung Park ; Se-Wan Choi |
| DOI |
10.6113/TKPE/2014.19.1.57 |
| Keywords |
bi-directional converter(BDC); series loaded resonant converter(SRC); zero current switching(ZCS) |
| Abstract |
In this paper a bidirectional DC-DC converter is proposed for renewable energy systems, eco-friendly vehicles, energy storage systems, uninterruptible power supply(UPS) systems and battery test equipments. The two-stage bidirectional converter employing a fixed-frequency series loaded resonant converter is designed to be capable of operating under zero-current-switching turn on and turn off regardless of voltage and load variation, and hence its magnetic components and EMI filters can be optimized. And efficiencies and volumes of the two-stage bidirectional converters are compared according to configuration of isolated and non-isolated parts and a two-stage topology suitable for low voltage and high current applications is proposed. A 12kW(12V, 1000A) prototype of the proposed converter has been built and tested to verify the validity of the proposed operation. |