Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Delta-sigma modulator and its application to switching amplification circuit










Image Number 15 for United States Patent #7248193.

A loop delay control circuit is provided between a comparator and a power switch stage. When the amplitude of an input signal is especially high, the loop delay control circuit secures an oscillation threshold value by setting a delay amount at a low value. On the other hand, when the amplitude of the input signal is not so high, the loop delay control circuit reduces an average switching rate by increasing the delay amount, but does not reduce the oscillation threshold value. This makes it possible to provide a delta-sigma modulator allowing realization of both (i) a high oscillation threshold value, i.e., high output power, and (ii) high power efficiency.








 
 
  Recently Added Patents
Solid state lighting devices and associated methods of manufacturing
High safety vehicular transportation system and operational method thereof
Device, information processing method, and computer-readable storage medium
Apparatus and method for adapted deblocking filtering strength
Peer-to-peer method of deploying and managing executable code and associated plug-ins
Active metal fuel cells
System and method for routing streaming data requests
  Randomly Featured Patents
Decoy
Memory device, memory system having the same, and programming method of a memory cell
Optical film having a structured surface with offset prismatic structures
Computer program product for performing testing of a simulated storage device within a testing simulation environment
Optical signal converter from RZ format to NRZ format
Set of buttons for a handset
Pulverizing and grinding hammer
Apparatus for disengaging insulation material from bales for blowing and method therefor
Method of treating an oil or gas well with biodegradable low toxicity fluid system
Disc player capable of reproducing a partially recorded disc