Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1989-04-27
1991-02-05
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Rotary
310192, 310 49R, H02K 3714
Patent
active
049908065
ABSTRACT:
In a pulse motor comprising a rotor, a drive coil excited by a predetermined drive current to drive the rotor, and a yoke for guiding a magnetic flux generated by the drive coil to a predetermined magnetic path; the yoke is provided with an aperture to restrict the flow path of an eddy current induced by the magnetic flux generated by the drive coil.
REFERENCES:
patent: 3502923 (1990-03-01), Howell
patent: 4475091 (1984-10-01), Chai et al.
Ishikawa Masayuki
Kasai Tadashi
Kikuchi Hiroshi
Tanuma Jiro
Jones Judson H.
OKI Electric Industry Co., Ltd.
Stephan Steven L.
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