Electronic filter with active elements

Details Electronic filter with active elements Electronic filter with active elements

1976-10-01

1977-09-13

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307318, 328167, 330109, 323 3, H03K 102, H03K 112

Patent

active

040485234

ABSTRACT:
An electronic filter having active components for eliminating A.C. signals, and for producing constant D.C. voltage at its output, wherein the filter can be effectively used between the D.C. power supply and the B+ terminal for an audio amplifier, especially one having vacuum tubes for its major active elements. The electronic filter monitors its output voltage to control the conductivity of a transistor which maintains the output voltage constant. Bias current and voltage requirements for the filter elements are generated internally from the filter input, and are also referenced to the filter output to provide a constant D.C. output over load variations.

REFERENCES:
patent: 3593113 (1971-07-01), Wiley
patent: 3602799 (1971-08-01), Guillen

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