Stepping motor

Details Stepping motor Stepping motor

1975-12-24

1977-09-13

Rubinson, Gene Z.

Electricity: motive power systems

Reciprocating or oscillating motor

Energizing winding circuit control

318696, 310 40MM, 310 49R, 310162, H02K 2900

Patent

active

040485480

ABSTRACT:
A stepping motor for use in an electronic timepiece which has a permanent magnet rotor and a stator provided with a driving coil. The stator is comprised of stator pole pieces each having assymetric portions which provide primary and secondary magnetic paths, respectively, whereby two static equilibrium positions are provided. The rotor may be stable at either one of these static equilibrium positions by controlling the supply of two-phase pulses to the driving coil so that the rotor may be rotated in normal or reverse direction. Su

REFERENCES:
patent: 3132558 (1964-05-01), Wymann
patent: 3597915 (1971-08-01), Aizawa
patent: 3949251 (1976-04-01), Takatsuki
patent: 3978651 (1976-09-01), Yoshimo
patent: 3979616 (1976-09-01), Stechmann
patent: 3989967 (1976-11-01), Kikuyama et al.

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