Filter arrangement for suppressing an AC voltage superposed on a

Details Filter arrangement for suppressing an AC voltage superposed on a Filter arrangement for suppressing an AC voltage superposed on a

1995-06-01

1997-01-28

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

Unwanted signal suppression

327552, 323280, H03B 100

Patent

active

055981232

ABSTRACT:
A filter arrangement an AC voltage superposed on a DC voltage present across first (KO) and second (HO) poles of a DC voltage source. The arrangement includes between these first (KO) and second (HO) poles, a series coupling of a capacitance (C1) and an impedance (R5), and an amplifier arrangement (N1,C2,R2,C3,R3, C4,R4,D1,D2) that has an inverting input terminal which is coupled to the first pole (KO) and an output terminal which is coupled a the junction node of the capacitance (C1) and the impedance (R5).

REFERENCES:
patent: 3670230 (1972-06-01), Rooney et al.
patent: 3710148 (1973-01-01), Itoh
patent: 4156838 (1979-05-01), Montague
patent: 4350956 (1982-09-01), De Puy
patent: 4549129 (1985-10-01), Hing et al.
patent: 4594648 (1986-06-01), Gallios
patent: 4968928 (1990-11-01), Heider
EDN Electrical Design News, vol. 35, No. 4, Feb. 1990, Newton, Massachusetts, U.S., pp. 177-180, XP99769, R. Burt et al, "Nonlinear Components Lower Settling Time Of Noise Reduction Filters".

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