Stepping motor

Details Stepping motor Stepping motor

1988-11-30

1990-08-28

Shoop, Jr., William M.

Electricity: motive power systems

Open-loop stepping motor control systems

318685, 3542711, 310 49R, H07P 800

Patent

active

049528599

ABSTRACT:
A stepping motor characterized by the provision of an anisotropic resin magnet rotor which is the rotor of the motor and comprises an anisotropic resin magnet and which has recesses formed at the centers of the magnetic poles thereof and in which the wave form of the magnetic force is one of a two-head wave form and a trapezoidal wave form in the range of 0.1-0.2 of the air gap between the rotor and stator teeth during the use of the motor.

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patent: 4504755 (1985-03-01), Semonen et al.
patent: 4601564 (1986-07-01), Yamamoto
patent: 4656381 (1987-04-01), Komatsu
patent: 4672253 (1987-06-01), Tajima et al.
patent: 4704292 (1988-12-01), Torisawa et al.

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