Study and Implementation of a DC Power Supply with Wide-Range Input Voltage

• Main Authors: Chun-Tai Cheng, 鄭竣泰
• Other Authors: Huang-Jen Chiu
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/82218224295690836804

碩士 === 國立臺灣科技大學 === 電子工程系 === 104 === This thesis mainly develops a DC power supply with wide-range input voltage for high voltage capacitor discharge. The power stage consists of a cascode buck DC-DC converter and a full-bridge series resonant converter. The pre-stage cascode buck converter is operated to achieve the proposed voltage adjustment from 40 V~5 kV and provide the input voltage for post-stage converter. The post-stage circuit is a full-bridge series resonant converter, which provides 400 V/500 W output voltage, and the maximum power efficiency can be 87.35%. A DSP chip TMS320F28035 developed by Texas Instruments is adopted for realizing digital controller. In this thesis, the operation principles and design considerations for a prototype system were analyzed and discussed. Experimental results of the prototype converter are shown to verify the feasibility of the studied scheme.