Abstract
Flexible cooking surfaces have changed the domestic induction heating product paradigm enabling the use of a wider range of cookware materials, shapes, and positions. In order to implement such systems, multiple-output resonant inverters featuring high-performance and high-efficiency operation while achieving a cost-effective implementation are required. This paper proposes a multiple-output zero-voltage-switching resonant inverter for flexible induction heating appliances. The proposed converter features a matrix structure, enabling a cost-effective implementation with a reduced number of power devices while achieving high performance and low switching losses. It has been tested by means of an experimental prototype featuring 48 induction heating coils, proving the feasibility of the proposed approach.
Highlights
Induction heating technology has evolved since its industrial origins to enable a wide range of industrial, domestic and biomedical applications [1]
Advances in key enabling technologies, such as power electronic devices and topologies, digital control and magnetic components have enabled the development of high performance and high efficiency systems outperforming other classical heating technologies
In order to design and implement such systems, a special effort must be made on the design of multi-coil power electronics architectures achieving both high performance and cost-effective implementations
Summary
Induction heating technology has evolved since its industrial origins to enable a wide range of industrial, domestic and biomedical applications [1]. H. Sarnago et al.: Multiple-Output ZVS Resonant Inverter Architecture for Flexible Induction Heating Appliances implementation which only requires one power device per inductor [10]. Considering a higher number of coils, [11], [19] proposes a three-device half-bridge structure that achieves a significant cost reduction [20] focuses on multi-load control, using an intermediate dc-dc converter to provide higher versatility.
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