LAY
Sorry y post complete material, no LAY ask other forum menbers may by somethig......hi exflaco,post the LAY if you have it
>>>which are the best pairs for output fet buffers among the below
2n5551/5401 , 2s/c2655/a1020 ,2s/a1013/c2229 , bc327/337 , bc368/369 , bc546/556 , bd139/140, mje 340/350
The ones with highest gain and current, but personally i would use dedicated drivers like tc4420
tc is difficult for me to find pls among the above which can work mean while. thanks in advance.
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tc is difficult for me to find pls among the above which can work mean while. thanks in advance.
I get my tc from rs, farnell or future.
I also use BD243/244 pairs for driving high gate capacitance mosfets.
I get my tc from rs, farnell or future.
I also use BD243/244 pairs for driving high gate capacitance mosfets.
thanks microsim
Andrew OCP Detex same the Crest class D amps ,Lm311 and 555 ,triell ,more simple a npn transistor and 555 two work fine ,a lot similar protecction on class d amps you only parallel 3 X1 ohms 5w resistor paraleel , and adjust the trimp to the desired humbrall protecttion,(sorry my poor english) more efficient + and - v sense ,another way old AB amps like Peavey the shunt sense resistor to gnd series to the speaker,y share schemm soon..
And here is the pcb of the second amp posted by Exflaco...and the hungarian page: Gyakorlati építési tanácsok - 600W-os D osztályú végfok - Hobbielektronika.hu - online elektronikai magazin és fórum
Attachments
ocp
Andrew OCP Detex same the Crest class D amps ,Lm311 and 555 ,triell ,more simple a npn transistor and 555 two work fine ,a lot similar protecction on class d amps you only parallel 3 X1 ohms 5w resistor paraleel , and adjust the trimp to the desired humbrall protecttion,(sorry my poor english) more efficient + and - v sense ,another way old AB amps like Peavey the shunt sense resistor to gnd series to the speaker,y share schemm soon..
Hi Exflaco
greetings thank you for replying and more important the COOPERATION i appreciate your efforts thanks
warm regards
andrew
Andrew OCP Detex same the Crest class D amps ,Lm311 and 555 ,triell ,more simple a npn transistor and 555 two work fine ,a lot similar protecction on class d amps you only parallel 3 X1 ohms 5w resistor paraleel , and adjust the trimp to the desired humbrall protecttion,(sorry my poor english) more efficient + and - v sense ,another way old AB amps like Peavey the shunt sense resistor to gnd series to the speaker,y share schemm soon..
Hi Exflaco
greetings thank you for replying and more important the COOPERATION i appreciate your efforts thanks
warm regards
andrew
Hi stewin,hi mano will your old design work comfortably with irfp250 at +/- 75vlts with 2ohms load
don't use my old design
regards
MANOJ
limiter corrections
Sorry i see something wrong
and fixed
Ok here we go with fix
Sorry i see something wrong
and fixed
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- Class D
- UCD 25 watts to 1200 watts using 2 mosfets