Variable impedance transformer with equalizing winding

Details Variable impedance transformer with equalizing winding Variable impedance transformer with equalizing winding

1991-03-29

1992-11-10

Beha, Jr., William H.

Electricity: power supply or regulation systems

External or operator controlled

Using a transformer or inductor as the final control device

323338, 336 73, 336155, G05F 700

Patent

active

051631733

ABSTRACT:
An apparatus and method is disclosed for an improved variable impedance transformer for controlling the power from an alternating input power source to a load in accordance with a direct current control signal. The invention comprises a DC control winding simultaneously wound about a plurality of saturable reactor cores and a plurality of AC power input windings simultaneously wound about a power core and each of the saturable reactor cores. A power output winding is wound about the power core for delivering power to the load. A low impedance equalizing winding is wound about the saturable reactor cores for shunting any resultant alternating voltage as a result of physical variations between the saturable reactor cores.

REFERENCES:
patent: 1910381 (1933-05-01), Dowling
patent: 4019123 (1977-04-01), Maskery

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