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
Device for producing a connection grid with an integrated fuse
Method and device for monitoring and analyzing signals
Method for improving the performance of browser-based, formula-driven parametric objects
MEMS autofocus actuator
Processing biomass
Automatically selecting a paper with increased dimensions than originally desired for printing and adding advertisement content to the increased dimensional area of the paper
Semiconductor device comprising a Fin and method for manufacturing the same
  Randomly Featured Patents
Pneumatic load-supporting structures
Process for enzymatic production of isomerically pure isosorbide-2 and 5-monoesters and their conversion to isosorbide-2 and -5 nitrate
Network representation and manipulation thereof
Partially-transparent-shield-method for scattered radiation compensation in x-ray imaging
Guide wire
Process for preparing an electroluminescent thin film
Circuit for the detection of an asymmetry in the magnetization current of a magnetic modulator
Process for making PEN/PET blends and transparent articles therefrom
Methods and apparatus to protect data
Multiple unit material processing apparatus