Multiwinding inductor and associated apparatus

Details Multiwinding inductor and associated apparatus Multiwinding inductor and associated apparatus

1983-07-15

1985-08-27

Wong, Peter S.

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

363 97, 363134, H02M 3335

Patent

active

045382190

ABSTRACT:
A multiwinding inductor is disclosed which inductor is employed in a power control circuit. The power control circuit is of the type having a transformer which has a center tapped primary winding coupled to and associated with a plurality of secondary windings. The primary winding of the transformer is switched by means of switching devices during a power control operation. The inductor has a first winding in the primary which winding has one terminal coupled to the center tap and a second terminal coupled to a generator and a filter arrangement. Another winding of the inductor designated as a free wheeling winding is in series with an auxiliary impedance and has one terminal coupled to the common terminal of the switching devices and a second terminal coupled through a rectifier to the generator. At least two additional windings of the inductor are coupled to suitable rectifier circuits associated with the secondary windings of the transformer. The operation of the inductor causes energy which is stored in the secondary windings to be returned to the generator during circuit operation by means of the free wheeling winding and auxiliary impedance to thereby increase the overall efficiency of the circuit as well as to reduce the magnitude of the filter capacitors employed in such circuits.

REFERENCES:
patent: 4300191 (1981-11-01), Baranowski et al.

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