| 摘要 |
The motor control circuit is constituted by a current controlling circuit having a first output terminal connected to a source terminal via a resistor, a second output terminal connected to the source terminal through a motor to be controlled, the currents outputted by the first and second output terminals being controlled by an input signal, a reference voltage generator producing a constant reference voltage, a comparator comparing the reference voltage with the output voltage of the second output voltage, a drive circuit responsive to the output voltage of the comparator for applying a control signal to the current controlling circuit, and a limiter which prevents the voltage at the first output terminal of the current controlling circuit from becoming lower than the reference voltage.
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