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
Stable light source device
Providing user interfaces and window previews for hosted applications
Asynchronous line interface rate adaptation to the physical layer with synchronous lines at the connection layer
System and method for conditionally sending a request for data to a home node
Technology for managing traffic via dual homed connections in communication networks
Fuel cell and a method of manufacturing a fuel cell
Wrench
  Randomly Featured Patents
Method for preparing a trifluoromethanesulfinic acid salt
Vehicle fault diagnostic system
Storage rack
Water-thickening copolymers of acrylic and N-alkylmaleamic monomers
Floribunda rose plant named `KORenon`
Lock releasing mechanism
Chlorinator for wastewater treatment systems
Rivet or the like
Finger toy
System for resisting limb movement