SF Amplifier

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Harrison,
I'm always concerned with majority drive from a mosfet drain; to drive a variety of difficult speakers with reactive loads it's always better to drive with sources.
The other issue is that your output stage is bipolar/mosfet CFP with gain (750/150) and this considerably reduces the drive capacity by reducing local fb.
Have you got it running? Any conclusions?
Hugh
 
The negative feedback presumably should keep things in check and allow us to use the mosfets that way even for difficult loads. Yes the tight lease should work just fine with the current power rails, maybe this can be tweaked depending on application and how significant stability is, thanks again. Am hoping to have the PCBs ready soon so that all can play with it. If your looking for something fun and experimental this may be one
Harrison,
I'm always concerned with majority drive from a mosfet drain; to drive a variety of difficult speakers with reactive loads it's always better to drive with sources.
The other issue is that your output stage is bipolar/mosfet CFP with gain (750/150) and this considerably reduces the drive capacity by reducing local fb.
Have you got it running? Any conclusions?
Hugh
 
Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.