A New Control Scheme for a Class-D Inverter with Induction Heating Jar Application by Constant Switching Frequency

Won-Suk Choi; Nam-Ju Park; Dong-Yun Lee; Dong-Seok Hyun

A New Control Scheme for a Class-D Inverter with Induction Heating Jar Application by Constant Switching Frequency

Vol. 5, No. 4, pp. 272-281, Oct. 2005

10.6113/JPE.2005.5.4.272

IH-Jar(Induction Heating-Jar)

PFM(Pulse Frequency Modulation)

PWM(Power Width Modulation)

Class-D inverter

ZVS(Zero-Voltage-Switching)

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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.

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Cite this article

[IEEE Style]

W. Choi, N. Park, D. Lee, D. Hyun, "A New Control Scheme for a Class-D Inverter with Induction Heating Jar Application by Constant Switching Frequency," Journal of Power Electronics, vol. 5, no. 4, pp. 272-281, 2005. DOI: 10.6113/JPE.2005.5.4.272.

[ACM Style]

Won-Suk Choi, Nam-Ju Park, Dong-Yun Lee, and Dong-Seok Hyun. 2005. A New Control Scheme for a Class-D Inverter with Induction Heating Jar Application by Constant Switching Frequency. Journal of Power Electronics, 5, 4, (2005), 272-281. DOI: 10.6113/JPE.2005.5.4.272.