| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor controller capable of appropriately determining the presence/absence of an overcurrent in view of an adverse effect of temperature changes of a transistor for reverse connection prevention.SOLUTION: The motor controller includes: a controller 6 for determining the presence/absence of an overcurrent in a power supply path RC in which a transistor 14 for reverse connection prevention is disposed, and a signal output device 110 for outputting, toward the controller 6, a signal showing a value changing with temperature changes of the transistor 14 for reverse connection prevention. The controller 6 compares a voltage between the source and drain terminals of the transistor 14 for reverse connection prevention to a threshold value for overcurrent determination to determine the presence/absence of an overcurrent, and the size of the threshold value changes with a value showing a signal received from the signal output device 110. |
