Amplifier with electrically controlled gain, with output suitabl

Details Amplifier with electrically controlled gain, with output suitabl Amplifier with electrically controlled gain, with output suitabl

1979-08-14

1981-08-25

Smith, Alfred E.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330261, H03F 130, H03F 368

Patent

active

042862264

ABSTRACT:
An electrically adjustable current divider means divides the output current of a constant current generator into a plurality of portions, a first of which is applied as tail current to a long-tailed-pair amplifier connection of transistors for controlling its voltage gain. At least one of the long-tailed-pair transistors has a resistive load; the quiescent value of the output voltage developed across this load has an undesirable tendency to exhibit shifts as gain is controlled. A second portion of divided output current from the constant current generator, exhibiting changes in magnitude complementary to those exhibited by the first portion, is applied to current-to-voltage converter means for developing voltage components to counteract the above-mentioned tendency towards shifts in the quiescent value of the output voltage as gain is controlled.

REFERENCES:
patent: 3909738 (1975-09-01), Niimi

Affiliated with

Also associated with

Rating

Amplifier with electrically controlled gain, with output suitabl does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Amplifier with electrically controlled gain, with output suitabl, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Amplifier with electrically controlled gain, with output suitabl will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1160995