Abstract—An exhaustive method for verifying & optimizing of switching frequency for the performance of high frequency mirror inverter for induction heater is presented. Litz-wire is used for heating coil of the induction heater which controls the skin effect and proximity effect of conductor operating at high frequency. With the calculated optimum values of inductance and resistance at a particular operating frequency, HF mirror inverter topology has been simulated using P-SIM. Optimum results are obtained by changing the switching frequency. Obtained results are then compared using different power semi-conductor switches like IGBT, BJT, MOSFET and GTO. Afterwards waveforms have been shown & we can see that at a particular switching frequency output is highly quality & can justify the feasibility for real implementation of high frequency mirror inverter fed induction heater in industrial appliances

Index Terms—Induction heating, mirror inverter, P-SIM, semi-conductor switches, ZCS and ZVS

N. Pal and P. K. Sadhu are with Electrical Engineering Department, Indian School of Mines, Dhanbad, Jharkhand 826004, India (e-mail: nitai_pal@rediffmail.com, pradip_sadhu@yahoo.co.in; Tel.: +91326-2235478; fax: +91326-2296563).
A. Bandyopadhyay is with Electrical Engineering Department, Asansol Engineering College, Asansol, and West Bengal, India. (e-mail: banerjee_atanu77123@rediffmail.com)

Cite: Nitai Pal, Pradip Kumar Sadhu, and Atanu Bandyopadhyay, "Selection of Switching Frequency for H. F. Mirror Inverter Employed in Industrial Induction Heating," International Journal of Computer and Electrical Engineering vol. 4, no. 1, pp. 14-18, 2012.