A circuit arrangement for a resonant converter, wherein the resonant converter includes a galvanic isolation, where on the primary side the resonant converter includes a resonant inductor, a resonant capacitor and switching elements, which each have a switching frequency, where a resonant current flows through the resonant inductor and the resonant capacitor by switching the switching elements, where a bidirectional switching element is arranged in a current path of the resonant current flowing through the resonant inductor and the resonant capacitor, where a series circuit of a diode pair has a center connected to a terminal of the resonant inductor or resonant capacitor and each respective ends thereof to a switching element of the primary-side switching elements.