Method of overvoltage protection and overvoltage protection device using the same

Abstract

A method of overvoltage protection and an overvoltage protection device are provided. The method includes: electrically connecting an input terminal of a one-way pass circuit to a first equipment and electrically connecting an output terminal of the one-way pass circuit to a second equipment; electrically connecting a converter to the output terminal and a supercapacitor; detecting a first voltage of a first power flow at the output terminal by the converter; and charging the supercapacitor by the first power flow in response to the first voltage being greater than a first threshold.

Dependencies are inferred from the claim text.