ELECTRONIC DEVICE
First Claim
1. An electronic device comprising:
- a first switching element that is driven by controlling a voltage on its control terminal; and
a first drive circuit that controls the voltage on the control terminal of the first switching element on the basis of an inputted drive signal to drive the first switching element;
wherein in cases where there exists a current flowing through the first switching element in spite of the drive signal instructing turn-off of the first switching element, the first drive circuit determines that the first switching element is in an abnormal state.
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Accused Products
Abstract
An electronic device that is capable of detecting an abnormal state such that a switching element is unable to be turned off in spite of a drive signal instructing turn-off of the switching element. The device includes a switching element that is driven by controlling a voltage on its control terminal, a drive circuit that controls the voltage on the control terminal of the switching element on the basis on an inputted drive signal to drive the switching element. In cases where there exists a current flowing through the switching element in spite of the drive signal instructing turn-off of the switching element, the drive circuit determines that the switching element is in an abnormal state, and cuts off supply of voltage from a drive power supply circuit to the control terminal of the switching element to thereby turn off the switching element.
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Citations
20 Claims
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1. An electronic device comprising:
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a first switching element that is driven by controlling a voltage on its control terminal; and a first drive circuit that controls the voltage on the control terminal of the first switching element on the basis of an inputted drive signal to drive the first switching element; wherein in cases where there exists a current flowing through the first switching element in spite of the drive signal instructing turn-off of the first switching element, the first drive circuit determines that the first switching element is in an abnormal state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification