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    A single-coil multi-tapped PDM-based induction heating system for domestic applications

    Ramalingam, Senthil Rajan, Boopathi, CS, Ramasamy, Sridhar, Ahsan, Mominul, Haider, Julfikar ORCID logoORCID: https://orcid.org/0000-0001-7010-8285 and Shahjalal, Mohammad (2023) A single-coil multi-tapped PDM-based induction heating system for domestic applications. Electronics, 12 (2). p. 404. ISSN 2079-9292

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    Abstract

    The conventional heating system is inefficient as the major part of the heating coil lies out-side the vessel it is placed on. This research article proposes a new single-coil multi-tapped induction heating system. This novel induction heating system is facilitated by a half-bridge resonant converter controlled by zero-voltage switching (ZVS). The multi-tapping winding system ensures an effective heat transfer between the coil and the working vessel with the windings of the induction coil segmented to an equivalent size of the vessel. The pulse density modulation (PDM) scheme employed here as the control proves to be the most versatile one. The whole system is duly simulated for an 850 W IH setup in MATLAB Simulink and implemented as a hardware prototype using a half-bridge resonant converter. The control pulses are developed through the PDM in a PIC16F877A controller. The simulation and experimental results prove the credibility of the proposed induction heating (IH) scheme, and during heavy loading conditions, it outperforms the single-coil IH system by gaining an efficiency of 89.29%

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