| Title |
Isolated DC/DC Converter with Very Wide Input Voltage Ranges for Emergency Power Back-up System(EPBS) |
| Authors |
Hyung-Jun Chae ; Kyoung-Dong Kim ; Hyung-Rock Oh ; 李Jun-Young Lee |
| DOI |
10.6113/TKPE/2011.16.4.334 |
| Keywords |
Converter; Buck-boost; LLC resonant; Wide input voltage |
| Abstract |
This paper presents a design and implementation of DC/DC converter with very wide input voltage ranges for EPBS whose input voltage is from 30V to 400V and output voltage is 48V. This converter is comprised of two stages that one is for control and the other is for only galvanic isolation. The proposed converter uses the hard-switched buck-boost topology for control purpose and soft-switched LLC resonant converter for isolation. The proposed converter has been verified with 300W design. |