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
Silicon wafer
Switch having a protective housing and method for producing same
Semiconductor integrated circuit, IC card mounted with the semiconductor integrated circuit, and operation method for the same
Method and system for large scale manufacture of thin film photovoltaic devices using multi-chamber configuration
Pixel array, polymer stablized alignment liquid crystal display panel, and pixel array driving method
Method and system for determining the position of a fluid discharge in an underwater environment
Wall light
  Randomly Featured Patents
Apparatus for exchanging substances
Printer with active fluidic architecture
Impact-type rotary fining, homogenizing and emulsifying device
Twist element for a bearingless rotor
Orbital sander
Diffractive optical element and optical device
Golf balls dimples
Plasma processing method and high-rate plasma etching apparatus
Light emitting diode lamp
Access control unit