Energization coil device, a method of making such a device and a

Details Energization coil device, a method of making such a device and a Energization coil device, a method of making such a device and a

1991-02-28

1992-05-12

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 71, 361393, 357 71, H02K 1100, H01L 2348

Patent

active

051131005

ABSTRACT:
The energization coil device provided by the invention comprises a planar support element (30) consisting of a semi-conductive substrate, and at least one planar coil (BI) formed on a first layer (CI) in the vicinity of one surface (F1) of the substrate. The device is characterized in that it further comprises at least one second planar coil (BS) formed in the vicinity of said one surface (F1) of the substrate on a second layer (CS) superposed on the first layer (CI), these coil layers (CI, CS) forming a monolithic and integrated arrangement of several, respectively upper and lower, adjacent layers in one substrate. The device is primarily intended for use in a polyphase electromagnetic micromotor intended to operate as a stepping motor, a continuous rotation motor or a bidirectional motor.

REFERENCES:
patent: 4410251 (1983-10-01), Lee
patent: 4733115 (1988-03-01), Barone et al.
patent: 4770640 (1988-09-01), Walter
patent: 4975760 (1990-12-01), Dohjo et al.
patent: 4998159 (1991-03-01), Shinohara et al.

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