CPC H03K 17/0828 (2013.01) [B60R 16/03 (2013.01); G01K 7/01 (2013.01); G01K 7/16 (2013.01); H02H 3/08 (2013.01); H02H 5/04 (2013.01); H02H 6/00 (2013.01); H02M 3/156 (2013.01); H03K 17/168 (2013.01)] | 9 Claims |
1. A switch device comprising:
a switching element arranged to connect/disconnect a current path from a power supply terminal to a ground terminal via a load, the switching element being a high side switch connected between the power supply terminal and the load;
an intermittent control unit arranged to intermittently drive the switching element when an abnormality is detected;
an output voltage monitoring portion arranged to monitor an output voltage applied to the load and to disable the intermittent control unit until the output voltage increases to a power supply voltage applied to the power supply terminal, and
a signal path for transmitting a signal from the output voltage monitoring portion to the intermittent control unit.
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