pyrohaz Posted January 28, 2011 Report Share Posted January 28, 2011 Hey guys, Im currently researching into depletion mosfets I was wondering if anyone can tell me where I can get some high(er) power mosfets from, im currently using DN2540's I got off ebay. I have spice'd an amplifier (about 9w), it is only a simple one with no NFB and runs off 60v. I will include a screen shot of it. It only has about 360mA on each of the mosfets and a bias voltage of ~1.4v (Cathode voltage). For the phase splitter, I used a simple 2N7000 Cathodyne (Sourceodyne in this case? :P)Tips and help please :) cheers! Quote Link to comment Share on other sites More sharing options...
hotwaterwizard Posted February 26, 2011 Report Share Posted February 26, 2011 Mouser has a great selectionDN2540 DN2540N5-G Here is the Datasheethttp://www.supertex.com/pdf/datasheets/DN2540.pdfN-Channel Depletion-Mode Vertical DMOS FETshttp://www.mouser.com/catalog/637/526.pdfhttp://www.mouser.com/ProductDetail/Supertex/DN2540N5-G/?qs=sGAEpiMZZMutXGli8Ay4kB0LeIPGp6S4VnggXtNEsEk%3d Quote Link to comment Share on other sites More sharing options...
Hero999 Posted February 26, 2011 Report Share Posted February 26, 2011 Why build a very inefficient class A amplifier when you can make an efficient class AB ampflieir which sounds as good?The only real use for a depletion power MOSFET is a normally open solid state relay. Quote Link to comment Share on other sites More sharing options...
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