Non-dissipative DC active filter and transformer

Details Non-dissipative DC active filter and transformer Non-dissipative DC active filter and transformer

1978-11-08

1980-12-23

Shoop, William M.

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

H02J 102

Patent

active

042413958

ABSTRACT:
Non-dissipative filtering of a DC voltage, or current, is provided with an energy storage inductor coupled sequentially in alternate directions across the DC source. In another embodiment the inductor is part of the primary of a transformer and secondary DC voltage is derived by rectification. In a further embodiment, a thyristor and a diode respectively at opposite sides of the transformer and a capacitor at the output of the rectification unit concur in limiting the transferred DC energy to a selected level by control of the firing angle of the thyristor.

REFERENCES:
patent: 3648150 (1972-03-01), Viernick et al.
patent: 3825815 (1974-07-01), Gyugyi et al.

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