Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Multiple output charge pump










Image Number 11 for United States Patent #6636104.

A single mode buck/boost charge pump has multiple outputs and is adapted to power a plurality of separate loads, such as light emitting diodes, in a highly efficient manner. The multiple outputs have different voltages. The output current or voltage of at least one of the multiple outputs is regulated by a feedback circuit. The feedback circuit provides a control signal based on a comparison of a reference voltage with a feedback voltage. The feedback voltage is proportional to an output voltage when the charge pump is configured to regulate the output voltage. Alternately, the feedback voltage is a sense voltage across a sense resistor connected in series with a load when the charge pump is configured to regulate output current provided to the load.








 
 
  Recently Added Patents
Systems of an electronic device and methods for manufacturing the same
Lubricating oil with enhanced protection against wear and corrosion
Configuration method and system of complex network and configuration and management module of server resources
Method and apparatus for complementing an instrument panel by utilizing augmented reality
Field-programmable analog array with memristors
Sweetener compositions having enhanced sweetness and improved temporal and/or flavor profiles
Over the counter medicinal container with surface ornamentation
  Randomly Featured Patents
Television
Method and apparatus for cultivation of plants grown singly in separate beds
Process for preparing a crystalline aluminosilicate
Controlled release composition for a biologically active material dissolved or dispersed in an L2-phase
Apparatus and method for recording image signals to allow reproduction at more than one data rate
Gravity-fed low pressure cryogenic liquid delivery system
Fuel reactor
Method and apparatus for an object-oriented object for retrieving information from local and remote databases
Method and device for in situ layer thickness determination
Electrotactile vocoder using handset with stimulating electrodes