Resources Contact Us Home
System and method for minimizing dissipation in RF power amplifiers

Image Number 6 for United States Patent #6683496.

The variable power supply to an amplifier in an electrical circuit is dynamically controlled through the use of a lookup table responsive to one or more operating conditions of the electrical circuit. The lookup table is indexed by one or more of the operating conditions and the amount of amplification to be applied to an input signal to the amplifier is determined. One embodiment of the invention comprises a television transmitter circuit including a power amplifier circuit capable of amplifying a variable frequency COFDM or 8VSB input signal where the amount of amplification applied to the input signal is dynamically controlled through the use of a lookup table as a function of the frequency of the input signal.

  Recently Added Patents
System and method for providing borrowing schemes
System and method of recording media content
AV player
Multi-label modeling using a plurality of classifiers
Control and systems for autonomously driven vehicles
Method for direct modulation of the spinothalamic tract
Timing phase detection using a matched filter set
  Randomly Featured Patents
Beneficiation of coal and metallic and non-metallic ores by froth flotation process using polyhydroxy alkyl xanthate depressants
Fluted column for juice extractor
Steering wheel posture control system
Scan distributor and parallel scan paths with controlled output buffer
Spray drying system
Transurethral resection apron system
Bar pin attachment for bush assembly
Synchronization for stored data
System and method of retrieving and formatting data from cellular telephone switches
Oil pump having pivoting vanes