Amplifier circuit having an operation point maintaining input and output voltages constant even if a gain thereof is varied
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 19, 1994
Grant Date -
N/A
app pub date -
Oct 18, 1991
filing date -
Oct 19, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An amplifier circuit includes a grounded-collector circuit for converting an input signal voltage into a first signal current, a second transistor circuit for transmitting the first signal current to an output side, a variable impedance for converting the first signal current transmitted to the output side into a voltage, and a circuit block having a voltage generation circuit connected in series to the variable impedance. A transistor constituting the grounded-collector circuit has a collector connected to a junction of the voltage generation circuit and the variable impedance and an emitter connected to an input side of the second transistor. The amplifier circuit has an operation point in which input and output voltages are maintained constant even if a gain is varied.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully