On Thu, Aug 7, 2008 at 9:42 AM, Rich wrote: > If you design a 50-60 Hz sinusoidal generator and feed it to an op amp and > then to a complementary symmetry pair and take the output from the common > emitters, then, if you put the 120 VDC across the collectors (PNP to the > minus side) you should get 120 VAC output between the collector of the PNP > complement and the emitter junction. I am sure that someone else will > correct or add to this idea. You should be sure to properly heat sink the > output transistors because they will produce a lot of heat. > You can make a 120 Vpeak-to-peak sinewave this way. But 120V mains voltage is 120 VRMS, or about 340 Vpeak-to-peak. Regards, Mark markrages@gmail -- Mark Rages, Engineer Midwest Telecine LLC markrages@midwesttelecine.com -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist