PQFN 5X6mm Packaged N channel Power Mosfet in ClassD ...

[savu]

i have 8 boards,
but firs i have to be sure that they are ok..

regards,
savu

 

[nigelwright7557]

Nobody Interested ?
Well then again you can always use IRFB4227 🙁

The IRFB4019 has considerably less capacitance yet can still manage 17 amps.

I found the 4227 made the 2092 run hot yet it was fine with 4019's.

 

[luka]

I found the 4227 made the 2092 run hot yet it was fine with 4019's.

For small power amps, yes, as little as fet is possible, you don't need several 10A ratings... if you do, buffers and you can use bigger fets

 

[Nick2015]

hy tekko,

can you also provide component values for me to do a spice simulation of the thing?
if the rersults are promissing i will ask Marce to redesign a part of the board and also fit a small module with unbalanced imput and ballanced output opamp.

regards,
savu

Can anyone please explain me whats the purpose of LM311 and transistors Q1-4?

 

[stewin]

Can anyone please explain me whats the purpose of LM311 and transistors Q1-4?

please post the schematic