Design and Implementation of High Voltage Pulsed Electric-Field Generators for Liquid Food Sterilization

• Main Authors: Huang Chou Lin, 林煌洲
• Other Authors: S. Y. Tseng
• Format: Others
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/28873176269321142520

碩士 === 長庚大學 === 電機工程學研究所 === 97 === This paper proposes a high voltage pulse electric field generator for liquid food Sterilization. The proposed circuit structure adopts full-bridge converter to generate a high DC voltage. While, the LLC resonant circuit is used to recover the energy trapped in leakage inductance of transformer with a high turns ratio and to achieve zero-voltage switching at turn-on transition of switches for increasing conversion efficiency. Finally, a prototype of high pulse voltage generator under output voltage of ±10 kV and maximum output power of 1 kW has been implemented to prove the feasibility of the proposed high voltage pulse electric field generator.