Patent ID: 9509209
Filing Date: 2016-11-29
CPC Classification: H02M,H03K

Claim Text:
1. A drive unit for driving a switching element comprising: a current detection section which detects a current flowing in an input terminal and an output terminal of a target switching element to be controlled; a turning-off section which forcedly turns off the target switching element when the current detected by the current detection section exceeds a threshold value; and a processing section which controls a switching operation performed by the turning-off section for setting the target switching element to the forcedly turned-off state so that a discharging speed in a case B1 is smaller than a discharging speed in a case B2, where in the case B1, the turning-off section forcedly turns off the target switching element under the completely turned-on state of the target switching element, and in the case B2, the turning-off section forcedly turns off the target switching element under the incompletely turned-on state of the target switching element.