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










Image Number 18 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
Method and system for predicting a latency spike category of audio and video streams to adjust a jitter buffer size accordingly
Capturing effort level by task upon check-in to source control management system
Detection of encrypted packet streams using a timer
Method of diagnosing and therapeutically treating a patient for a traumatic brain injury
Method for manufacturing an optical structure
Light-emitting device
Image forming apparatus, printing control method, recording medium, and data signal
  Randomly Featured Patents
Efficient negative charge pump
Tunable optical filters having electro-optic whispering-gallery-mode resonators
Instrument stand
Controlled viscosity dermal adhesive
Automatic developer exchanging device for a photocopier
Method of processing a data move instruction for moving data between main storage and extended storage and data move instruction processing apparatus
Cordless telephone handset
Form for a concrete tractor weight
Image processing apparatus and method for transmitting encrypted data
Printing methods and apparatus for reducing banding due to paper transport