Amplifiers – With semiconductor amplifying device – Including plural stages cascaded
Reexamination Certificate
2005-08-23
2005-08-23
Nguyen, Patricia (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including plural stages cascaded
C330S250000, C330S296000
Reexamination Certificate
active
06933787
ABSTRACT:
An apparatus comprising a Darlington transistor pair and a common-base transistor. The Darlington transistor pair may be configured to generate an output signal in response to an input signal. The common-base transistor may (i) be coupled between an output transistor of the Darlington transistor pair and the output signal and (ii) have a base configured to receive a frequency dependent reference voltage.
REFERENCES:
patent: 3832645 (1974-08-01), Greutman
patent: 4345217 (1982-08-01), Pace
patent: 4697155 (1987-09-01), Lehning
patent: 4706038 (1987-11-01), Navidi et al.
Maiorana PC Christopher P.
Nguyen Patricia
Sirenza Microdevices, Inc.
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