Amplifiers – With semiconductor amplifying device – Including differential amplifier
Patent
1991-04-12
1992-08-25
Mullins, James B.
Amplifiers
With semiconductor amplifying device
Including differential amplifier
307254, 330262, H03F 345, H03F 321, H03K 1760
Patent
active
051422450
ABSTRACT:
A power-amplifier cell which comprises an inverting input amplifier made up of a first transistor (T.sub.1) having a collector connected to a first supply-voltage terminal via a first resistor (R.sub.11), and an output stage comprising a second (T.sub.4) and a third (T.sub.6) transistor whose collector-emitter paths are arranged in series. The common point between the second and third transistors forms an output (5) of the power amplifier. The second transistor (T.sub.4) has its base connected to the collector of the first transistor (T.sub.1) and a control signal is applied to the base of the third transistor (T.sub.6) via a second resistor (R.sub.16). Furthermore, a first capacitor (C.sub.1) is arranged in parallel with the first resistor (R.sub.11) and the control signal is the input signal (E) or a fraction thereof. The power amplifier may comprise two cells whose first transistors (T.sub.1) have their emitters coupled to one another.
REFERENCES:
patent: 3531660 (1970-09-01), Engberg
Franzblau Bernard
Mullins James B.
U.S. Philips Corporation
LandOfFree
Power amplifier for rectangular input signals does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Power amplifier for rectangular input signals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power amplifier for rectangular input signals will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-387793