Controlled capacitive filter for active loads

Details Controlled capacitive filter for active loads Controlled capacitive filter for active loads

1975-06-23

1976-10-19

Goldberg, Gerald

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307109, 320 1, 333 79, 321 18, H02M 7155

Patent

active

039873560

ABSTRACT:
A single phase controlled capacitive filter with a smaller, more efficiently used filter capacitor than conventional capacitive filters is connected between rectifier terminals and supplies voltage to an active load producing dc output voltage. The charge and discharge intervals of the filter capacitor are controlled by gate controlled thyristors or other devices such that discharge occurs when the instantaneous rectified line voltage falls below the dc output voltage. The filter capacitor during discharge is placed in series with the load or can remain in parallel with the load in a simpler arrangement.

REFERENCES:
patent: 3854078 (1974-12-01), Hubner
patent: 3913002 (1975-10-01), Steigerwald et al.
G.E. SCR Manual 1st Edition 1960, p. 7 Relied upon.

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