Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Adaptive digital voltage regulator










Image Number 2 for United States Patent #7098641.

A digitally-controlled, DC/DC converter includes at least one switched-mode power stage for the purpose of converting an input voltage (Vin) into an output voltage (Vout); the power stage including at least one controllable switching device, which is turned ON and OFF by a control device with temporal resolution .DELTA.t. The converter further includes a duty cycle control mechanism for controlling the duty cycle of the controllable switching device, the duty cycle control mechanism including a mechanism for estimating the output voltage error; a mechanism for estimating the target duty cycle; a duty cycle quantization mechanism for determining, for a target duty cycle estimate, a first set of quantized ON time/OFF time pairs suitable for controlling the switching device; and a selector mechanism for determining the turn ON and turn OFF times of said controllable switching device by choosing, cycle by cycle, an ON time/OFF time pair from a second set of quantized ON time/OFF time pairs, derived from said first set, choosing in such a manner that the amplitude of the output voltage error is continually minimized. To compensate for the load-dependent effects of parasitics, the second set of quantized ON time/OFF time pairs is adjusted continuously, to insure optimum performance at all load levels.








 
 
  Recently Added Patents
Semiconductor device manufacture in which minimum wiring pitch of connecting portion wiring layer is less than minimum wiring pitch of any other wiring layer
Communication system, authentication device, control server, communication method, and program
Driving support device, method, and program
Process for making thermoplastic polymer pellets
Method and system for providing complete internet anywhere with partial server processing
Curable sublimation marking material and sublimation transfer process using same
Method for identifying bacteria in a sample
  Randomly Featured Patents
Apparatus for applying DC power to an inductive load
Digital front end for a satellite navigation receiver
Face grinder
Method for monitoring the efficiency of a catalytic converter for treating exhaust gases from an internal combustion engine
Set of structural brackets that allow electronic/electrical assemblies to be mounted within a computer enclosure
Compression wave former
Automatic embroidering machine and method
Fuse barrel component handling device
Process for desiccant drier regeneration
Method, product, and structure for flexible range locking of read and write requests using shared and exclusive locks, flags, sub-locks, and counters