| CPC B06B 1/0215 (2013.01) [G08B 6/00 (2013.01); H03K 17/687 (2013.01)] | 5 Claims |
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1. An electronic device comprising:
a load;
a first switching element that is disposed on a current path connected to the load;
a drive circuit that drives the first switching element by using a drive control signal, the drive control signal being based on a comparison result between a load signal and a reference signal, the load signal being obtained by converting, into a voltage, a current flowing through the current path, the reference signal serving as a reference of an operation of the first switching element; and
a second switching element that is capable of switching a signal level of the drive control signal between a first level and a second level, the first level being a level at which the first switching element is switched off, the second level being a level at which the first switching element is switched on,
wherein the second switching element is a switching element that is disposed on a branch line and that switches a connection state between a signal transmission path and a reference potential point, the branch line branching from the signal transmission path and being connected to the reference potential point, the signal transmission path being a path between an output terminal and a control terminal of the first switching element, the output terminal being a terminal from which the drive circuit outputs the drive control signal to the first switching element, the control terminal of the first switching element being connected to the output terminal and receiving the drive control signal,
when the second switching element is switched on, the signal level of the drive control signal becomes the first level, and
when the second switching element is switched off, the signal level of the drive control signal becomes the second level.
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