CPC H02P 29/024 (2013.01) [B25B 21/004 (2013.01); G01R 31/343 (2013.01); H02K 7/145 (2013.01)] | 22 Claims |
1. A tool having a motor, a power source adapted to supply power to the motor, and switching elements, the tool comprising:
a controller adapted to:
individually activate and deactivate the switching elements;
measure a first current corresponding to at least one of the switching elements when activated; and
indicate a short circuit fault has occurred in at least one of the switching elements when the measured first current meets or exceeds a first threshold current.
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