Device for optional dynamic compression or expansion

Amplifiers – With semiconductor amplifying device – Including gain control means

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

330 86, 330145, 330284, 333 14, H03G 320, H03G 708

Patent

active

041818962

ABSTRACT:
A circuit for optional dynamic compression or expansion, with one amplifier located in the useful signal path and controllable in amplification, and an auxiliary branch including one amplifier controllable in amplification and a control voltage generator, to the input of which a useful signal path is connected and the output voltage of which serves to control the controllable amplification in the useful signal path and in the auxiliary branch, and wherein as adjusting members for controlling the amplification of the controllable amplifiers there serve field effect transistors to the control electrodes of which respective direct control voltages are applied. In parallel with the source-sink path of one field effect transistor serving as adjusting member for an amplifier located in the useful signal path there is connected a voltage divider the tapping of which is connected via a separating amplifier to the control electrode of the field effect transistor. The output of the separating amplifier is additionally connected to the control electrode of a field effect transistor serving as adjusting member for an amplifier located in the auxiliary branch. su

REFERENCES:
patent: 3969680 (1976-07-01), Wermuth
Sherwin, "A Linear Multiple Gain-Controlled Amplifier," New Electronics, Dec. 9, 1975, pp. 26-28.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Device for optional dynamic compression or expansion does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device for optional dynamic compression or expansion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for optional dynamic compression or expansion will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2121952

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.