| 摘要 |
PURPOSE: A DC(Direct Current) motor position control apparatus is provided to control the position of a DC motor by using a personal computer. CONSTITUTION: A PWM(Pulse Width Modulation) signal generating unit(30) is comprised of a first inverter for performing the phase inversion on a control signal generated from a pulse generating unit(20b) within a timer(20), and first and second AND gates for performing a logic AND operation on the phase-inverted control signal through the first inverter and on normal rotation and reverse rotation signals outputted from a normal/reverse directional signal output unit(70) to output the logic signals. A PWM signal amplifying unit(35) is comprised of first and second amplifying units for rotating a DC motor(40) at a normal direction, and third and fourth amplifying units for rotating the DC motor(40) at a reverse direction.
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