Title: Digital variable switching frequency controlled integrated power converter for class C and class D appliances

Authors: Mopidevi Subbarao; Ch. Sai Babu; S. Satyanarayana

Addresses: Department of EEE, Vignan's Foundation for Science, Technology and Research University, Vadlamudi, India ' Department of EEE, College of Engineering, JNTUK, Kakinada, India ' Department of EEE, Raghu Institute of Technology, Visakhapatnam, India

Abstract: Existing methods for integrated switched mode power converters are mainly based on voltage controller technique, but they fail to comply with international regulatory standards (IEC 6100-3-2 and IEEE 519-1992) for class C and class D electrical appliances. Variable switching frequency current controller has been proposed in this work, owing to its features, viz. fast dynamic response, no compensation circuit and less complexity in design. Integrated converter for 100 W load operating in universal range of voltage (90-230 V), 50 Hz has been designed and implemented using MATLAB/Simulink, verified in hardware using TMS320F2812 digital processor board and thus results found to be complying with international regulatory standards.

Keywords: switched mode power converter; variable switching frequency; IBFC; integrated converter; power factor correction; DSP.

DOI: 10.1504/IJPELEC.2020.106225

International Journal of Power Electronics, 2020 Vol.11 No.3, pp.339 - 358

Received: 14 May 2017
Accepted: 11 Dec 2017
Published online: 02 Apr 2020 *

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