Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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A New Control Scheme for a Class-D Inverter with Induction Heating Jar Application by Constant Switching Frequency

  • Choi Won-Suk (Dept. of Electrical Engineering, HanYang University) ;
  • Park Nam-Ju (Dept. of Electrical Engineering, HanYang University) ;
  • Lee Dong-Yun (Dept. of Electrical Engineering, HanYang University) ;
  • Hyun Dong-Seok (Dept. of Electrical Engineering, HanYang University)
  • Published : 2005.10.01
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Abstract

In this paper, a simple power control scheme for a constant frequency Class-D inverter with a variable duty cycle is proposed. It is more suitable and acceptable for high- frequency induction heating (IH) jar applications. The proposed control scheme has the advantages of not only wide power regulation range but also ease of control output power. Also it can achieve a stable and efficient Zero-Voltage-Switching (ZVS) in a whole load range. The control principles of the proposed method are described in detail and its validity is verified through simulated and experimental results on 42.8kHz IGBT for induction heating rated on 1.6kW with constant frequency variable power.

Keywords

References

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