Direct current compensation circuit for transformers

Details Direct current compensation circuit for transformers Direct current compensation circuit for transformers

1976-08-13

1977-12-20

Goldberg, Gerald

Electricity: power supply or regulation systems

Remote sensing

179 18FA, 323 6, 323 62, 325493, G05F 156, H01F 1902

Patent

active

040644499

ABSTRACT:
A direct current compensation circuit is provided for use with a transformer having a plurality of windings. A resistor is connected in series with a first winding. A transistor is coupled to the first resistor and to a compensation winding so that when the direct current flow through the resistor is greater than a predetermined value, a compensation current is supplied to the compensation winding. When the direct current flow through the resistor is less than the predetermined value, no compensation current is supplied to the compensation winding.

REFERENCES:
patent: 3317817 (1967-05-01), Gershen
patent: 3714548 (1973-01-01), Macrander
patent: 3781571 (1973-12-01), Lord
patent: 3959718 (1976-05-01), Hasegawa
Instruments and Control Systems, Dec. 1972, p. 48.

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