DRIVING CIRCUIT OF ROTATING MACHINE

摘要

PURPOSE:To enhance the rotating accuracy of a rotating machine by using a driving system by which the speed of the rotating machine is changed continuously from a CW direction up to a CCW direction. CONSTITUTION:A direction discrimination circuit 1 which discriminates the direction of rotation of a rotating machine and an inverting circuit 2 which inverts a control voltage 10 are installed. A PWM circuit 15 is driven by a control signal by a first analog switch 3 and a second analog switch 4 which select the inverting signal or the noninverting signal of the control voltage 10. In addition, the direction of rotation of a drive logic circuit 6 is controlled by the output of the direction discrimination circuit 1, and a CW or CCW driving operation can be performed.