Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1996-12-20
1998-11-24
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 68R, 310DIG6, 310207, 310171, H02K 1700
Patent
active
058412085
ABSTRACT:
A motor capable of generating an electric signal having a particular and precise frequency may be used in a rotary magnetic head apparatus for a video tape recorder. A wiring pattern for generating the signal is disposed on a stator opposite a rotor. Alternating magnetic flux provided by movement of the rotor produces the signal. Gaps in the wiring pattern allow the wiring pattern and wiring for iron core assemblies also disposed on the stator to be disposed on a single circuit board. A toroidal coupling line and a loop coupling line close the loop without crossing the gaps.
REFERENCES:
patent: 2823545 (1958-02-01), Bodge
patent: 4695795 (1987-09-01), Nakamizo et al.
patent: 4975607 (1990-12-01), Hara et al.
patent: 5126613 (1992-06-01), Choi
patent: 5260619 (1993-11-01), Hara
Kananen Ronald P.
Sony Corporation
Stephan Steven L.
Tamai Karl
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