Amplifiers – With semiconductor amplifying device – Including differential amplifier
Reexamination Certificate
2005-08-09
2005-08-09
Shingleton, Michael B (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including differential amplifier
C330S133000, C330S134000, C330S285000, C327S306000, C327S323000
Reexamination Certificate
active
06927630
ABSTRACT:
A method and apparatus is provided for detecting the output power of an RF power amplifier for purposes of controlling the output power. A circuit for generating an output power control signal includes a power detector to detect the output power of an RF power amplifier. A variable gain amplifier is coupled to the power detector for amplifying the output of the power detector. The value of the generated control signal is a function of the gain of the variable gain amplifier.
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Dupuis Timothy J.
Niknejad Ali M.
Paul Susanne A.
Welland David R.
Johnson & Associates
Shingleton Michael B
Silicon Laboratories Inc.
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