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Atmel Assigned Patent(Targeted News Service Via Acquire Media NewsEdge) By Targeted News Service ALEXANDRIA, Va., May 17 -- Atmel, San Jose, Calif., has been assigned a patent (8,441,199) developed by four co-inventors for a "method and apparatus for an intelligent light emitting diode driver having power factor correction capability." The co-inventors are Hendrik Santo, San Jose, Calif., Matthew D. Schindler, San Jose, Calif., Dilip Sangam, Saratoga, Calif., and Tushar Dhayagude, Santa Clara, Calif. The abstract of the patent published by the U.S. Patent and Trademark Office states: "The present invention relates to circuits and methods for controlling one or more LED strings. The circuit comprises a programmable controller coupled to one or more detectors, wherein the one or more detectors are configured to detect one or more measurable parameters of one or more LEDs or LED drivers. The controller is configured to receive information from the one or more detectors related to the one or more measurable parameters and use that information to determine the desired drive voltage for the LED strings. The controller is associated with a power supply having power factor correction (PFC) capability. The controller provides the power supply with a control signal indicative of the desired drive voltage for one or more LED strings. The power supply also receives ac voltage and current waveforms as inputs and performs power factor correction and rectified waveforms related to the ac waveforms. The power supply generates the desired drive voltage based on the control signal." The patent application was filed on Dec. 29, 2009 (12/649,057). The full-text of the patent can be found at http://patft.uspto.gov/netacgi/nph-Parser Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=8,441,199.PN.&OS=PN/8,441,199&RS=PN/8,441,199 Written by Kusum Sangma; edited by Anand Kumar. KS0517AK0517-878326 (c) 2013 Targeted News Service [ Back To TMCnet.com's Homepage ] |