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










Image Number 7 for United States Patent #7986187.

An audio power amplifier includes a first and a second amplification unit, each including a switching voltage amplifier, an output filter, a current compensator, an inner current feedback loop feeding a measurement of current measured at the output inductor back to a summing input of the current compensator, a voltage compensator coupled to the summing input of the current compensator, and an outer voltage feedback loop. A controlled signal path provides the output of the voltage compensator of the first amplification unit to the current compensator of the second amplification unit. The first and second amplification units are operable with separate loads, in parallel driving a common load, or across a bridge-tied-load. A second pair of amplification units may be added and operated together with the first pair to drive a single speaker with a parallel pair of amplifiers on each side of a bridge-tied-load.








 
 
  Recently Added Patents
Method for producing SOI substrate and SOI substrate
Hepodxilin analog enantiomers
Device and method for adjusting a chrominance signal based on an edge strength
Multiple carrier compression scheme
System for highlighting targets on head up displays with near focus plane
Sharing networks determined by sharing of items between individuals
Thermosensitive recording medium
  Randomly Featured Patents
Apparatus and method for folding cut sheet paper
Cotton picker bar
Implantable medical device system with minimization of energy employed for processing data
Small electronic card with peripheral contacts
Process and intermediates for manufacture of 2-azasterioids
Rotor of rotary machine having claw poles and auxiliary permanent magnets
High voltage lateral transistor
Stable DNA constructs
Interiorly installable exterior surface mount
Method of activating .alpha.-amylase with oxidizing agents