| Title |
Three-Phase Isolated Capacitorless Charger with a Single-Stage Power Converter |
| Authors |
Soo-Yong Chae ; Soon-Chan Hong |
| DOI |
http://dx.doi.org/10.5207/JIEIE.2014.28.11.084 |
| Keywords |
Charger ; Capacitorless ; Matrix Converter |
| Abstract |
In this paper, we propose a three-phase isolated electrolytic capacitorless charger available for quick charger. In the proposed charger, electrolytic capacitor in DC link is eliminated by direct conversion from AC input to DC output. Conventional chargers are two stage structure including AC-DC and DC-DC converters, but the proposed charger can be simplified into single stage converter by using a matrix converter. And the waveform of input currents is improved by giving the weighting factor to the duty ratio of auxiliary switches. In order to verify the effectiveness of the proposed charger, simulations are carried out and a 1.2kW charger was constructed and experimented. |