Document Type and Number:
Japanese Patent JPS6257130
Kind Code:
B2
Abstract:
PCT No. PCT/EP79/00064 Sec. 371 Date May 15, 1980 Sec. 102(e) Date May 15, 1980 PCT Filed Aug. 21, 1979 PCT Pub. No. WO80/00644 PCT Pub. Date Apr. 3, 1980.The invention relates to a filter for electric signals consisting of switches, capacitors and amplifiers, wherein at least one switch is designed in the manner of voltage reversal switches such that the voltage at the switch terminals, subsequent to activation of the switch, is equally great in amount, but oppositely directed relative to the voltage prior to actuation of the switch. It is the object of the invention to utilize, in such filter circuits, electronic components which are as simple as possible and to fashion their design as freely as possible. In accordance with the invention this object is achieved by virtue of the fact that the voltage connected to the switch terminals (11, 12), in a first clock pulse phase (1), is intermediately stored via a first amplifier (V1) on a capacitor (Cs), and, in a second clock pulse phase (2), via a second amplifier (V2), this voltage is again impressed in inverted form on the switch terminals (11, 12). (FIGS. 1, 3, 4).
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Inventors:
FUETSUTOAISU ARUFUREETO
Application Number:
JP50136379A
Publication Date:
November 30, 1987
Filing Date:
August 21, 1979
Export Citation:
Assignee:
SIEMENS AG
International Classes:
H03H19/00; H04J3/20
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