| Title |
An Improved Non-Isolated 3-Level High Step-Up Boost Converter |
| Authors |
Su-Han Kim ; Hon-Nyong Cha ; Heung-Geun Kim ; Byung-Cho Choi |
| DOI |
10.6113/TKPE/2013.18.4.342 |
| Keywords |
boost converter; duality principle; high voltage gain; 3-level converter; soft-switching. |
| Abstract |
In this paper, an improved non-isolated 3-level high step-up boost converter is proposed. By using the well known duality principle, the proposed converter is derived from two-phase buck converter. Compared with the traditional boost converter and 3-level boost converter, the proposed converter can obtain very high voltage conversion ratio and the voltage stress of switching devices and diodes is only 1/4 of the output voltage. A 1 kW prototype converter is built and tested to verify performances of the proposed converter. |