A Study on Analysis and Design of HVC Embedded High Frequency Transformer for Microwave Oven

Inverter 구동 Microwave Oven용 HVC 내장형 고주파변압기의 해석 및 설계에 관한 연구

  • Park, K.H. (Dept. of Electrical Eng. Konkuk Univ.) ;
  • Cho, J.S. (Dept. of Electrical Eng. Konkuk Univ.) ;
  • Mok, H.S. (Dept. of Electrical Eng. Konkuk Univ.) ;
  • Choe, G.H. (Dept. of Electrical Eng. Konkuk Univ.)
  • Published : 2001.04.19

Abstract

A conventional power supply to drive a microwave oven has ferro-resonant transformer and high voltage capacitor(HVC). Though it is simple, transformer is bulky, heavy and has low-efficiency. To improve this defect, a high frequency inverter type power supply has been investigated and developed in recent years. But, because of additional control circuit and switching device, inverter-type power supply is more expensive than conventional one. In this study, The design procedure of a novel HVC embedded high frequency transformer is proposed for down-sizing and cost reduction of Inverter-type power supply. Also, equivalent circuit mode] is derived by FEM analysis and impedance measurements. And the operation of proposed HVC embedded transformer is verified by simulations and experimental results.

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