To promote accuracy of decision on lock, insertion or the like when a power window is driven.

A load controller includes a second comparator IC2 deciding threshold value for controlling an operation of a motor circuit M based on current value supplied to the motor circuit M, a first comparator IC1 comparing the decided threshold value with load voltage based on the current value supplied to the motor circuit M and an insertion detecting circuit 3 controlling for the motor circuit M to stop for a predetermined period. The second comparator IC2 varies the threshold value based on the current value supplied to the motor circuit M so as to follow the load voltage supplied to the first comparator IC1 to delay.