Drive circuit for step motor

Details Drive circuit for step motor Drive circuit for step motor

H - Electricity

02

P

318/20

H02P 8/00 (2006.01) H02P 8/14 (2006.01)

Patent

CA 1190278

DRIVE CIRCUIT FOR STEP MOTOR Abstract: A drive circuit for a step motor, where the stator windings of the step motor are in each case connected in series to a diode and where a capacitor is connected in parallel to the series of diode and winding. The above element is provided with power from a d.c. source via a thyristor switch. The circuit provides that upon firing of a thyristor the previously current conducting thyristor is switched off. This construction allows the reliable operation of step motors and a holding current can still flow up to the moment of switching to another winding.

395230

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