RF power amplifier system employing AC-DC power supplies and RF combining
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United States of America Patent
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May 28, 2002
Grant Date -
N/A
app pub date -
Sep 22, 2000
filing date -
Sep 22, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An RF power amplifier system is presented herein and it includes an RF source that provides an RF carrier signal having a given RF carrier frequency. An RF amplifier module amplifies the carrier signal and this module includes first and second RF amplifiers having a common input to receive a turn on signal that turns on both amplifiers and wherein the outputs of the amplifiers are coupled together in parallel. A controller supplies a turn on signal to the common input to turn on the first and second amplifiers. A first AC to DC supply provides a first DC operating voltage obtained from a first multiphase AC supply and applies this to the amplifier module and wherein the first DC voltage exhibits a ripple frequency dependent upon the number of phases in the first multiphase supply. Also, a second AC to DC supply is provided for supplying a second DC operating voltage from a second multiphase AC supply to the RF amplifier module and wherein the second DC operating voltage exhibits a ripple frequency dependent upon the number of phases in the second multiphase supply.
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