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 generating and displaying an interactive dynamic graph view of multiply connected objects
Corner wrap for use with a pallet
Method for using extended security system, extended security system and devices
Electronic hand-held device
Inter-cell power control in the presence of fractional frequency reuse
Multilevel directory assistance apparatus and method
Integrated circuit packaging system with laser hole and method of manufacture thereof
  Randomly Featured Patents
Correction circuit of a switching-current sample for power converters in both CCM and DCM operation
Toy carwash and gas station combination
Narrow and wide copper interconnections composed of (111), (200) and (511) surfaces
Two-stroke engine having a membrane valve integrated into the transfer channel
Method of applying a material to wires of a wire group
A-base revenue meter with power quality features
Castor with a brake device
Optical disc player with sleep mode
Digital packet data trellis decoder
Transparent reticle disk