The AC to HF-AC resonant link converter

The term HF-AC resonant link converters usually denotes a circuit, whose main part is a resonant tank circuit. The main goal of designers of such circuits is to reach a constant magnitude of output voltage with constant frequency and independence of load conditions. In this paper the possibility of maintenance of the constant HF-AC voltage on parallel resonant circuits (frequency 25 kHz) from the main supply is considered. In the family of AC to HF-AC resonant link converters the proposed circuit is quite new. This goal has been reached by providing the energy from the main supply by using the accordance between the serial and parallel resonance of the chosen circuit.