Self-regulated transformer-inductor with air gaps

Details Self-regulated transformer-inductor with air gaps Self-regulated transformer-inductor with air gaps

1987-07-20

1988-08-23

Salce, Patrick R.

Electricity: power supply or regulation systems

Self-regulating

Using a transformer or inductor as the final control device

323331, 323334, 336155, 336178, G05F 306

Patent

active

047663650

ABSTRACT:
The transformer comprises a three-limbed magnetic core having two outer limbs each defining a central air gap. Two windings, an alternating current one and a direct current one, are wound around each outer limb. Primary and secondary windings are disposed on the center limb, the primary one being supplied with alternating current from a source, and the secondary one supplying with alternating current an external load. The two alternating current windings are connected in series and supplied with alternating current by the source, possibly through an additional winding wound around the center limb, while the two direct current windings are connected in series and supplied by the current in the alternating current windings rectified through a diode bridge. The current in the two direct current windings induces a magnetic flux in a closed circuit defined by the outer limbs. The alternating currents in the primary winding and in the two alternating current windings are coupled to first and second alternating current magnetic fluxes assisting each other in the center limb and respectively flowing in two closed magnetic circuits defined, on the one hand, by the center limb and one outer limb, and, on the other hand, by the center limb and the other outer limb. The transformer supplies the external load with electric energy from the source while regulating the source and supply voltages.

REFERENCES:
patent: 2765436 (1956-10-01), Dornhoefer
patent: 2827565 (1958-03-01), Weil
patent: 3253212 (1966-05-01), Wentworth
patent: 3447068 (1969-05-01), Hart
patent: 4041431 (1977-10-01), Enoksen
patent: 4156222 (1979-05-01), Rossman et al.
patent: 4378522 (1983-03-01), Suladze et al.

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