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Control_of_higher_voltage_motors

2016-09-01 12:28  
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Control_of_higher_voltage_motors
This circuit shows how an LT1005 multifunction regulator can be used to control operation of higher-voltage motors. The circuit is similar to that of Fig. 8-6, except that a 1000-μF capacitor is placed at the regulator to filter transients that are generated by motor switching. When the tach output calls for power, the LTl005 comes on, and allows current to flow through the motor. This forces the LTl005 input toward ground for the duration of the turn-on time. The advantage of this circuit over that of Fig. 8-6 is that higher-voltage motors (up to 20 V) can be used.