Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <cwillis-at-guilford.edu> Shawn, Richie Burnett's page is very helpful (www.richieburnett.co.uk) Alan Sharp (www.alansharp.co.uk) And finally, check out some of the application notes at places like ON Semiconducor or International Rectifier. They have "tutorials" on MOSFET stuff. Good luck- Carl