Stepping motor for timekeeping mechanism

Details Stepping motor for timekeeping mechanism Stepping motor for timekeeping mechanism

H - Electricity

02

K

310/57

H02K 37/00 (2006.01)

Patent

CA 1080294

Abstract of the Disclosure A stepping motor includes a rotor formed of ferro- magnetic material having a plurality of circumferentially alternately arranged poles of opposite polarities and a stator having main poles which are polarized in opposite polarities by successive drive pulses of opposite senses. An auxiliary stator pole is provided between adjacent main stator poles to give rise to a thrust that causes the rotor to rotate a small angle in the direction of rotation during the interval between successive drive pulses so that upon polarization of the stator by a sub- sequent drive pulse the rotor is easily caused to rotate in the same direction of rotation. - 1 -

270180

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