Abstract
Single-ended resonant high-frequency inverters are featured by efficient operation on the basis of soft switching transition mode and simple circuit construction. In recent years, these inverters are applied to the indution-heating cooker, and 3 million units are produced annualy. Miniaturization and cost reduction of these induction-heating inverters are required.This paper presents generic circuit topologies of single-ended resonant high-frequency inverters for practical induction-heated cooking appliances. These circuit topologies are classified into 8 categolies, which are derived newly from a view point of the circuit duality concept. Features of all categolies are comparatively described. Two typical voltage-fed circuit topologies of these resonant inverter configrations are analyzed under induction-heated load model. The steady-state performance evaluations are comparatively described and discussed from a practical points of view.
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