| 摘要 |
PROBLEM TO BE SOLVED: To provide a wire break detection circuit capable of surely performing wire break detection output without depending on a value of current which flows in the event of the wire break. SOLUTION: In a wiring path which applies ground potential on a driving device 31, a diode 33 is inserted between a common connection point of a GND terminal of the driving device 31 and a body earth E and a drain of a FET 19. A comparator 34 detects that current flows in the diode 34 through the control part 32 to detect the wire break of the ground wire. COPYRIGHT: (C)2009,JPO&INPIT
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