| Title |
Improved Phase-shift Pulse-width Modulation Full-bridge Converter using a Blocking Capacitor |
| DOI |
http://dx.doi.org/10.5207/JIEIE.2011.25.8.020 |
| Keywords |
Phase-Shift Pulse-Width Modulation ; Full-Bridge Converter ; Blocking Capacitor ; Resonant Circuit |
| Abstract |
This paper presents an improved phase-shift pulse-width modulation (PWM) full-bridge converter using a blocking capacitor. As the proposed converter reduces the circulation energy by inserting only one series blocking capacitor at the primary side of the conventional phase-shift PWM full-bridge converter structure, it improves the operation characteristics of the conventional converter. In this paper, first, the operation of conventional phase-shift PWM full-bridge converter is roughly reviewed, and then the operational principle of the proposed converter is classified and explained by each mode. After that, a prototype design example based on the operational principle is shown. Then, the improved operation characteristics of the proposed converter are actually verified through the experimental results. |