alan smith wrote: > So....using phase control to dim is not the preferred method? Using > IGBT for dimming, from what I understand, is more a reverse operation > than the standard triac dimming. Triacs are used with phase control only because they rely on the zero crossings to turn off. Otherwise, whether an IGBT, bipolar, or FET is used is independent of the control method. ***************************************************************** Embed Inc, embedded system specialists in Littleton Massachusetts (978) 742-9014, http://www.embedinc.com -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist