Title :
A new power control scheme of class-D inverter for induction heating jar application with constant switching frequency
Author :
Choi, Won-Suk ; Park, Nam-ju ; Lee, Dong-Yun ; Hyun, Dong-seok
Author_Institution :
Dept. of Electr. Eng., Hanyang Univ., Seoul, South Korea
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 the stable and efficient zero-voltage-switching (ZVS) in whole load range. The control principles of proposed method are described in detail and its validity is verified through simulated and experimental results on 42.8 kHz IGBT for induction heating rated on 1.6 kW with constant frequency variable power.
Keywords :
induction heating; insulated gate bipolar transistors; invertors; power control; radiofrequency heating; switching convertors; zero voltage switching; 1.6 kW; 42.8 kHz; IGBT; ZVS; class-D inverter; high-frequency induction heating; jar application; power control; switching frequency; zero-voltage-switching; Circuits; Frequency modulation; Insulated gate bipolar transistors; MOSFETs; Power control; Power generation; Pulse width modulation; Pulse width modulation inverters; Resonant inverters; Switching frequency;
Conference_Titel :
Industrial Electronics Society, 2004. IECON 2004. 30th Annual Conference of IEEE
Print_ISBN :
0-7803-8730-9
DOI :
10.1109/IECON.2004.1433414
