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
Method and system for video parameter analysis and transmission
Restarting event and alert analysis after a shutdown in a distributed processing system
Compositions for inhibiting NADPH oxidase activity
Vending machine
Sensor packages and method of packaging dies of differing sizes
Memory device having collaborative filtering to reduce noise
Profiled rail for advertising/display units
  Randomly Featured Patents
Differential amplifier and voltage follower circuit
Hsp90 family protein inhibitors
Medical bag arrangement
Image obtaining method and apparatus of an endoscope apparatus
Store/store block instructions for communicating with adapters
Diagnostic radio frequency identification sensors and applications thereof
Propionamidoxime derivatives
Arrangement for detecting quenches in superconducting coils
Universal embedded controller for freeing CPU from operations of peripheral subsystem units with table of functions including an instruction specifying battery controller select protocol
Compound semiconductor switch circuit device