Apparatus for supplying current of changing polarity to a load o

Details Apparatus for supplying current of changing polarity to a load o Apparatus for supplying current of changing polarity to a load o

1979-01-19

1981-03-24

Shoop, William M.

Electric power conversion systems

Current conversion

With interphase transformer

363135, 318722, H02M 700

Patent

active

042584159

ABSTRACT:
An improved current supply apparatus for at least one load object capable of delivering reactive power. A DC current source is connected to at least two parallel circuit branches that each include a thyristor connected in series to a winding of an interphase transformer inductor. The ends of the load object are connected to an associated tap point intermediate the thyristor and inductor winding of each branch. The thyristors are successively ignited to conduct current during a portion of a current supply cycle to provide an output current of changing polarity to the load object.

REFERENCES:
patent: 3121832 (1964-02-01), Haskell et al.
patent: 3497784 (1970-02-01), Toth et al.
patent: 3551632 (1970-12-01), Geisel
patent: 3958173 (1976-05-01), Christian et al.
patent: 3995203 (1976-11-01), Torok
patent: 4066938 (1978-01-01), Turnbull
patent: 4086622 (1978-04-01), Vukasovic

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