| CPC H03K 17/08116 (2013.01) [H02J 7/0024 (2013.01); H02J 7/0063 (2013.01); H03K 17/002 (2013.01)] | 9 Claims |
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1. A control device comprising:
a first series circuit that includes a first switch and a first resistor connected in series to each other;
a second series circuit that includes a second switch and a second resistor connected in series to each other, and is connected in parallel to the first series circuit;
an instruction unit configured to give an instruction to turn on the first switch and the second switch;
a voltage output circuit configured to output a voltage value that corresponds to a voltage value between two ends of the first resistor; and
a sensing unit configured to sense, when the instruction unit has given an instruction to turn on the first switch and the second switch, any occurrence of a failure in at least one of the first switch, the second switch, the first resistor, and the second resistor based on the voltage value output by the voltage output circuit,
wherein the voltage value that is output by the voltage output circuit increases with an increase in the voltage value between the two ends of the first resistor,
if the voltage value output by the voltage output circuit is less than a first threshold, the sensing unit senses that a failure has occurred in at least one of the first switch, the first resistor, and the second resistor, and
if the voltage value output by the voltage output circuit is equal to or greater than a second threshold, the sensing unit senses that a failure has occurred in at least one of the second switch, the first resistor, and the second resistor, and
the first threshold is less than the second threshold.
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