抄録
This paper clarifies the principle of the surge voltage of a rectifier diode that is connected to a transformer in an isolated power converter. It is confirmed that the theoretical vibrational frequency of the diode voltage in the equivalent circuit is in agreement with the experimental result. In addition, the design method of the RC snubber circuit is discussed by using the equivalent circuit consisting of a transformer, a snubber circuit, and a diode. Finally, the validity of the design method is confirmed by the experimental results.
