| 摘要 |
A power semiconductor circuit drives a load connected an output terminal. An output switch switches the output terminal to either one of an on-state and an off state. An internal state signal terminal produces an internal state of the circuit as a signal. An internal state signal switch switches the internal state signal terminal to either one of an on-state and an off-state. An internal state sensor detects the internal state of the circuit. A logic circuit is given with a control signal from an external control circuit, a detecting signal of the internal state sensor, and the signal from the internal state signal terminal, and switches the output switch and the internal state signal switch to either one of the on-state and the off-state on the basis of the given signals.
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