Current trends in induction heating appliances aim for a holistic approach to achieve high-efficiency and high-performance cost-effective implementations. In this scenario, bidirectional power devices open a new paradigm, as they allow direct ac-ac implementations, reducing the number of power conversion stages, and boosting the converter controllability. This paper proposes an implementation of a single-ended zero-current-switching ac-ac converter based on a bidirectional GaN-FET and evaluates various operation modes depending on the four-quadrant switch activation. The proposed approach is designed and experimentally validated.
