Load characteristics of a series resonant DC-DC converter with an symmetrical controlled rectifier

This paper considers a series resonant DC-DC converter operating above the resonant frequency. In order to control its output power, a symmetrical controlled rectifier is used, which allows bidirectional energy transfer. On the base of well-known analytical modelling of the resonant tank processes, a series for determination of the main converter quantities is proposed. As a result, the converter normalized load characteristics are built.