Resources Contact Us Home
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
System and method for operating an electric power converter
Method and system for cooling of integrated circuits
Carrier sense multiple access (CSMA) protocols for power line communications (PLC)
Method for manufacturing light emitting diodes
Process for the production of electric energy by the excitation and capture of electrons from ground or water sources
Magnetoresistive element and manufacturing method of the same
Image processing system, image processing apparatus, control method for image processing apparatus, and storage medium
  Randomly Featured Patents
System for internetworking data terminal equipment through a switched digital network
Transgenic porcine models of cystic fibrosis
Watch movement balance part
Collapsible and expandable roll riser
Cervical occluding double balloon catheter
Pickup truck bed extender apparatus
Article display support
Use of hydrocarbon-soluble aminomethylene phosphonic acid derivatives in the solvent extraction of iron ions from aqueous solutions
Slide lid for container