Magnetically controlled variable transformer

Details Magnetically controlled variable transformer Magnetically controlled variable transformer

1989-04-03

1990-03-06

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, 323361, G05F 306

Patent

active

049072463

ABSTRACT:
A magnetically controlled variable transformer comprising magnetic cores and windings by which to accurately and reliably control electrical AC output power. The cores and windings act as a continuously variable turns-ratio transformer for use primarily at high power frequency applications (e.g. 400 KHz or higher), such as in aircraft and aerospace vehicles. The transformer of the present invention is implemented by coupling a 2-core variable saturable transformer to a fixed turns ratio linear transformer. By varying a DC control current to a DC control winding which is magnetically coupled to the saturable transformer, the AC output voltage at a resistive or reactive load can be varied from zero to full power, whereby the control range of the transformer can be maximized.

REFERENCES:
patent: 3123764 (1964-03-01), Patton
patent: 3343074 (1967-09-01), Brock
patent: 4129820 (1978-12-01), Brock

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