Amplifiers – With semiconductor amplifying device – Including push-pull amplifier
Reexamination Certificate
2007-11-27
2007-11-27
Patel, Rajnikant B. (Department: 2838)
Amplifiers
With semiconductor amplifying device
Including push-pull amplifier
C330S285000, C323S272000
Reexamination Certificate
active
10858699
ABSTRACT:
A mobile terminal including a multi-phase DC-DC converter for controlling a supply voltage provided to a power amplifier in the transmit chain. In general, the multi-phase DC-DC converter includes a multi-phase converter control system and a multi-phase power train. The multi-phase converter control system generates a plurality of control signals based on a set-point voltage and a supply voltage at the output of the multi-phase DC-DC converter. The plurality of control signals are provided to the multi-phase control system which generates a plurality of currents each based on a corresponding one of the plurality of control signals. The plurality of currents charge an output capacitor such that an average voltage across the output capacitor is the desired supply voltage.
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Patel Rajnikant B.
RF Micro Devices, Inc.
Withrow & Terranova , PLLC
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