Abstract: The converter includes a primary-side winding, a secondary-side winding, a resonant inductor, a resonant capacitor, and a noise suppression network. The primary-side winding and the secondary-side winding form a transformer. The noise suppression network is connected between a primary-side quiescent point and a secondary-side quiescent point. The primary-side quiescent point is a direct current stable potential at an input terminal of the DC/DC converter. The secondary-side quiescent point is a direct current stable potential at an output terminal of the DC/DC converter. A first parasitic capacitance between a first terminal of the primary-side winding and the secondary-side quiescent point is equal to a second parasitic capacitance between a second terminal of the primary-side winding and the secondary-side quiescent point. A suppression current is generated by the noise suppression network, and has a direction opposite to a direction of a total noise current generated by the resonant inductor.