Signal processing circuit including a variable gain input stage

Details Signal processing circuit including a variable gain input stage Signal processing circuit including a variable gain input stage

H - Electricity

03

F

H03F 1/00 (2006.01) H03G 3/00 (2006.01) H03H 11/24 (2006.01) H03K 7/06 (2006.01) H03M 3/02 (2006.01)

Patent

CA 2126525

The invention concerns a processing circuit (2,120) for producing a variable output signal in response to a variable quantity picked up or received as input. The processing circuit is associated with a stage or has an input sensor (4, 100) furnishing a signal with a variable amplification/attenuation factor, and further exhibits response characteristics which depend in particular from state variables. The processing circuit includes a suppression circuit (fig. 5, fig. 6) for suppressing transients normally produced by modification of the amplification/attenuation factor, this suppression circuit functioning by modifying the value of the state variables in direct proportion to the modification of the amplification/attenuation factor.

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