H - Electricity – 03 – F
Patent
H - Electricity
03
F
73/68, 330/9
H03F 9/00 (2006.01) G01R 33/04 (2006.01)
Patent
CA 1301475
Abstract of the Disclosure A magnetic amplifier employing a single four-legged ferrite core having orthogonally disposed through holes in the core. Biasing is provided of the magnetic core so as to provide operation in the non-linear parts of the core's hysteresis cycle. A first coil on the ferromagnetic core has an AC excitation signal applied thereto and a second coil on the core is wound orthogonally to the first coil and is adapted to have an output signal derived therefrom. A control or input current in a third coil is used to unbalance the magnetic bridge formed by the four legs, so as to produce a mutual inductance different from zero between the first and second coil. The biasing may be provided by a fourth coil or by permanent magnet means.
526503
Bramanti Donato
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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