Amplifiers – With semiconductor amplifying device – Including particular power supply circuitry
Reexamination Certificate
2007-11-13
2007-11-13
Pascal, Robert (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including particular power supply circuitry
C330S285000
Reexamination Certificate
active
11272795
ABSTRACT:
Within an amplifier circuit having an amplifying transistor, a boost voltage is presented at a port of the transistor. The amplifying transistor has a base, an emitter and a collector or a gate, a source, and a drain. A capacitor is provided in electrical communication with the transistor. A voltage source is provided for providing one of the collector and the source with a first voltage and for in a first mode of operation charging the first capacitor. Also within the circuit is a switch for switching between the first mode of operation and a second other mode of operation wherein the first capacitor and the voltage source cooperate to provide a voltage at one of the collector and the source in excess of the first voltage.
REFERENCES:
patent: 6888409 (2005-05-01), Taylor
patent: 2004/0196093 (2004-10-01), Le et al.
Kovacic Stephen J.
Loraine Jeremy
Macphail Philip
Wojtiuk Jeffery
Nguyen Hieu
Pascal Robert
SiGe Semiconductor Inc.
Townsend and Townsend / and Crew LLP
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