Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Efficient power amplifier










Image Number 13 for United States Patent #7834702.

A dynamic power supply for N amplifiers includes first and second power boost circuits which temporarily boost the positive or negative power supply rail, respectively. A control circuit monitors amplifier output signal levels and provides power boost control signals to the power boost circuits, which temporarily raise the positive supply voltage above the nominal voltage level in tandem with the highest output signal from the N amplifiers and lower the negative supply voltage below the nominal voltage level in tandem with the lowest output signal level from the N amplifiers. The power boost circuits each may be coupled to a reservoir capacitor from which current is drawn to provide the power boost. When inactive, the reservoir capacitors charge up from the respective power supply rails. The dynamic power supply is well suited for audio amplification systems.








 
 
  Recently Added Patents
Tablet computer
Low overhead PMI and CQI feedback and pairing schemes for MU-MIMO
Multiplier-accumulator circuitry and methods
Multi-clock PHY preamble design and detection
Decorative strip for showers
Method and system for dynamic font support on mobile devices
Musical wind instrument with inner waveguide reflector assembly
  Randomly Featured Patents
Removable stand alone display for laptop computer
Method of manufacturing developing agent
Fixed kiln with rotor steam gasifier
Television receiver
Metal deposits on mesoscopic organopolysiloxane particles
Zipper with multiple and alternate colors
Reverse outer loop optimization for communication channels with discontinuous transmission (DTX)
Olopatadine formulations for topical nasal administration
Processing scene objects
Failure diagnostic method and apparatus for equipment and recording medium in which program causing computer system to execute process in accordance with such method is stored