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公开(公告)号：US3636429A
公开(公告)日：1972-01-18
申请号：US3636429D
申请日：1970-05-08
Applicant: IBM
Inventor： JAKUBOWSKI MAREK , PAWLETKO JOSEPH P
CPC classification number: H02P8/32
Abstract: The invention is concerned with circuitry for providing a sequence of stopping pulses derived from motor feedback pulses. It includes means for providing an initial stop pulse which reverses the phase of the motor to thereby develop a negative torque. Intermediate stopping pulses in the form of feedback pulses continue to apply the negative torque to the rotor. A final stopping pulse not derived from the feedback pulses is applied to bring the motor to its equilibrium position. In this manner, a stepping motor can be stopped with substantially no oscillations after a specified number of steps.
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