Hello mister Mile
I have this crazy idea of adding more pair mosfet for the F100 so far I simulated as it is with original schematic, " I know is not accurate because is software simulation"
do I need to do any further modifications to able to use 6 pairs of mosfet ?
don't mind about the name Atom it will be always be F100 just with more pairsATOM 600 is just to identified my crazy ideas
The PCB is not completed yet I still hunting for errors = erratas
Regards
Juan
You must use IRF610/9610 drivers for 6 pairs... go to post #70
Regards
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Hi Terry,
Do share your feedback on the PSU+Protect PCB. I have etched a couple of PCB but not yet soldered and tried on any amp.
regards
Prasi
Will do. I am waiting on parts. As soon as they arrive I will test and report.
Bessings, Terry
Hello guys
I will share Sprint file of the F100 Atom 600 I keep working on it and I fix some minor errors, I decide to share files so you guys can also check and help me out here with layout, so far I did try schematic on post #70 and it didn't work 'most be me making mistakes"
the layout you see here is still fallowing the F100 schematic no other modification is done only I add more pairs and still simulate really well on simulation, the rail I have to increased to 75V will be alright right there, "I think", the only downside I found is that Q3 and Q4 BF420 on the original schematic is that they are either obsolete or not available so I simulated with MJE340G on both and it does work not as with the original part number but it does work, on PDF file I attached to this post Q7 and Q8 are the one that I use MJE340G, the bias I adjusted in a way testing with 20KHz to see if there is some kind of distortion for not been bias enough and the sweet spot on trim pot is 1.584K
this results might be different in real actual test
at 1KHz sine wave 1Vp @8 ohms load can give about 180W
at 1KHz sine wave 1Vp @4 ohms load can give about 385W
my goal here is not to get lot of power only just to have enough to enjoy low frequencies sometimes, I also read that adding more mosfet will help distribute that current between devices so they will work with less heat "this is what I think I might be wrong".
I was monitoring the rail current also to make sure is not over bias so it will not drain too much current " I apologize is this idea is not well explained"
I'm trying to keep it working in a condition that it will not generate too much heat also check to keep it as low THD as possible I also simulated with square wave look normal.
I was simulating with high frequencies it can go up to 35KHz and it will keep going no problem I think this will be a great prototype to do, alright guys I hope you find this interesting maybe this will help others to gather ideas for new PCB creations.
feel free to updated and modified
note:
This PCB is not been tested yet
Regards
Juan
I will share Sprint file of the F100 Atom 600 I keep working on it and I fix some minor errors, I decide to share files so you guys can also check and help me out here with layout, so far I did try schematic on post #70 and it didn't work 'most be me making mistakes
" the layout you see here is still fallowing the F100 schematic no other modification is done only I add more pairs and still simulate really well on simulation, the rail I have to increased to 75V will be alright right there, "I think", the only downside I found is that Q3 and Q4 BF420 on the original schematic is that they are either obsolete or not available
so I simulated with MJE340G on both and it does work not as with the original part number but it does work, on PDF file I attached to this post Q7 and Q8 are the one that I use MJE340G, the bias I adjusted in a way testing with 20KHz to see if there is some kind of distortion for not been bias enough and the sweet spot on trim pot is 1.584K this results might be different in real actual test
at 1KHz sine wave 1Vp @8 ohms load can give about 180W
at 1KHz sine wave 1Vp @4 ohms load can give about 385W
my goal here is not to get lot of power only just to have enough to enjoy low frequencies sometimes, I also read that adding more mosfet will help distribute that current between devices so they will work with less heat "this is what I think I might be wrong".
I was monitoring the rail current also to make sure is not over bias so it will not drain too much current " I apologize is this idea is not well explained"
I'm trying to keep it working in a condition that it will not generate too much heat also check to keep it as low THD as possible I also simulated with square wave look normal.
I was simulating with high frequencies it can go up to 35KHz and it will keep going no problem
I think this will be a great prototype to do, alright guys I hope you find this interesting maybe this will help others to gather ideas for new PCB creations. feel free to updated and modified
note:
This PCB is not been tested yet
Regards
Juan
Attachments
Last edited:
oh thank for let me know
good thing the leads match yes
!hey what you think about this layout isn't that cool
?I guess I'm getting a bit better not like Alex MM but I'm getting there
Regards
Juan
Attachments
Last edited:
Hello guys
I will share Sprint file of the F100 Atom 600 I keep working on it and I fix some minor errors, I decide to share files so you guys can also check and help me out here with layout, so far I did try schematic on post #70 and it didn't work 'most be me making mistakes
the layout you see here is still fallowing the F100 schematic no other modification is done only I add more pairs and still simulate really well on simulation, the rail I have to increased to 75V will be alright right there, "I think", the only downside I found is that Q3 and Q4 BF420 on the original schematic is that they are either obsolete or not available
this results might be different in real actual test
at 1KHz sine wave 1Vp @8 ohms load can give about 180W
at 1KHz sine wave 1Vp @4 ohms load can give about 385W
my goal here is not to get lot of power only just to have enough to enjoy low frequencies sometimes, I also read that adding more mosfet will help distribute that current between devices so they will work with less heat "this is what I think I might be wrong".
I was monitoring the rail current also to make sure is not over bias so it will not drain too much current " I apologize is this idea is not well explained"
I'm trying to keep it working in a condition that it will not generate too much heat also check to keep it as low THD as possible I also simulated with square wave look normal.
I was simulating with high frequencies it can go up to 35KHz and it will keep going no problem
feel free to updated and modified
note:
This PCB is not been tested yet
Regards
Juan
Can you post multisim file for post #70 schematic?
Regards
Yes of course maybe you can figure out what I did wrong, so far works really well with original F100 schematic with 6 pairs here are the file but this is version 14 of multisim I also include PDF
Regards
Juan
Hi Marcell,
I am attaching it for iron transfer. If you need it for photo sense let me know.
This is Juan's layout.
Blessings, Terry
jejejejejeje
Yes of course maybe you can figure out what I did wrong, so far works really well with original F100 schematic with 6 pairs here are the file but this is version 14 of multisim I also include PDF
Regards
Juan
F100 with mosfet drivers in multisim 14
Attachments
mister Mile can you post zip file with MS14 simulation when you get a chance
I do have space where you see the red circles Regards
Juan
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