On May 20, 2009, at 10:33 AM, der Mouse wrote: >>> I have to design an audio amplifier that can deliver 100Amps. >>> [...50Hz...500W...] >> [...sketch...] >> This is the highest efficiency type of driver since [its] driving >> transistors are never in active region -- always full on or off. >> High efficiency is what you need to put out 500W. > > It occurs to me that this could also be viewed as a switching power > supply whose regulation target voltage varies at audio-signal rates. > You might find useful literature by looking for switching power supply > design info.
I believe this is commonly referred to as a "Class D" amplifier. It is basically a switching regulator with a loop response time that is fast enough to handle audio frequencies. -Dave -- Dave McGuire Port Charlotte, FL _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user