Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – Unwanted signal suppression
Patent
1997-07-08
1999-07-27
Le, Dinh T.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
Unwanted signal suppression
327558, 327344, 333172, 330109, H03K 500
Patent
active
059296984
ABSTRACT:
A low-pass filter circuit including a first sub-filter designed in integrated circuit technology. The first sub-filter includes high-impedance resistor elements and smaller capacitances. A second sub-filter preceding the first sub-filter is constructed with low-impedance resistor elements and higher capacitances.
REFERENCES:
patent: 4110692 (1978-08-01), Pradal
patent: 5740716 (1998-04-01), Stilson
Article: U. Tietze, Ch. Schenk, Electronic Circuits --Designs and Applications, Berlin, Heidelburg, 1991, pp. 376-379.
Thomas Volker
Weber Stephan
Le Dinh T.
Siemens Aktiengesellschaft
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