Electricity: electrical systems and devices – Control circuits for electromagnetic devices – For relays or solenoids
Patent
1976-06-25
1978-03-28
Moose, Jr., Harry E.
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
For relays or solenoids
361156, H01H 4732
Patent
active
040818551
ABSTRACT:
The invention relates to a device for generating a time-dependent current in a coil, for example, a magnetic coil. Such a magnetic coil can be used, in combination with a second coil of this kind, for generating rotary magnetic fields in a device for transporting magnetic bubbles along a bubble guide structure consisting of discrete elements on a plate of magnetic material. The device comprises two or more current connection terminals, an LC oscillator circuit, a switching element connected in series with the coil, and a control unit.
REFERENCES:
patent: 3050639 (1962-08-01), Tate
patent: 3200350 (1965-08-01), Sharp
de Niet Edmond
Deurwaarder Marinus Adriaan
VAN DEN Enden Adrianus Wilhelmus Maria
McGlynn Daniel R.
Moose Jr. Harry E.
Trifari Frank R.
U.S. Philips Corporation
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