Amplifiers – With semiconductor amplifying device – Including plural stages cascaded
Reexamination Certificate
2007-08-13
2009-06-02
Choe, Henry K (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including plural stages cascaded
C330S310000
Reexamination Certificate
active
07541876
ABSTRACT:
An amplifier includes an input terminal, an output terminal, a cascode circuit with a first and a second transistor serially coupled between an output terminal and a terminal of a predefined potential with a control terminal of the first transistor being coupled to the input terminal, a first bipolar transistor having a collector/emitter path, forming a series circuit coupled to the terminal of a predefined potential with the first transistor, a power supply circuit for providing power supply voltages over a cascode circuit and a series circuit and a second bipolar transistor coupled between the output terminal and the terminal of the predefined potential with bases of the first bipolar transistor and the second bipolar transistor being coupled to each other and a current source.
REFERENCES:
patent: 4480230 (1984-10-01), Brehmer et al.
patent: 6600377 (2003-07-01), Sasaki
patent: 6636119 (2003-10-01), Vathulya
patent: 7391269 (2008-06-01), Chiba
Choe Henry K
Infineon - Technologies AG
Slater & Matsil L.L.P.
LandOfFree
Amplifier and method for operating the same 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 and method for operating the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Amplifier and method for operating the same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4140936