Patent ID: 6631065
Filing Date: 2003-10-07
Classification: H02H

Abstract:
An overcurrent interrupting device comprising:a semiconductor switch which controls an electric current flowing from a power supply to a load; a current detection circuit which detects a current value of an electric current flowing from the semiconductor switch to load; a determination value selection circuit which selects a determination value for determining an overcurrent; an overcurrent determination circuit which determines whether or not the current flowing from the semiconductor switch to the load is an overcurrent, on the basis of the current value and the determination value selected by the determination value selection circuit, and outputs a result of the determination; and a control circuit which controls the semiconductor switch on the basis of the result of the determination; wherein a plurality of switches are connected to the determination value selection circuit, and the determination value selection circuit selects the determination value in accordance with a setting state of the plurality of switches.