Congratulations Olin! Did you get your patent on it? I haven't seen it yet (waiting for print version to show up). -----Original Message----- From: Jan-Erik Soderholm In the January 2005 issue of Circuit Cellar there is an article named "Digitally Control Power Factor Correction" written by some Olin Lathrop. I havn't read it all yet, but it was the second largest article in that issue measured in "PDF-bytes" :-) :-) -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist