Than it's all DIY!That´s what I would expect from the wise DIYer. As I usually say, to the good listener, half a word is enough!
AX12 is so good amp with good quality
i use that in my car with 2 OHM load and + - 30 VDC
i can not find protection for that
i can not use apex protection beacuse it have mor component and i do not need soft start
i want use micro AVR for protection but i must find DCprotect- short circute protect and over curent protect befor that.
i can shutdown my smps converter when amps go to protect mode
i dont like relay
i dont know why but i dont like it
i recommended AX12 to all
any one can help me to creat protection for AX12?
i use that in my car with 2 OHM load and + - 30 VDC
i can not find protection for that
i can not use apex protection beacuse it have mor component and i do not need soft start
i want use micro AVR for protection but i must find DCprotect- short circute protect and over curent protect befor that.
i can shutdown my smps converter when amps go to protect mode
i dont like relay
i dont know why but i dont like it
i recommended AX12 to all
any one can help me to creat protection for AX12?
All NX14 files at one place:
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I forgot to place zener diode. Here is correct one in image and pdf format. AndrewT I made modification just to place multi-turn trimpot, can u verify this board.
Attachments
PSU5 from thread
http://www.diyaudio.com/forums/solid-state/173462-studio-reference-amplifier-3.html
Regards
Yes,that´s the one-only i did it with two pair of output transistors. That would be PSU10.
Here (http://www.diyaudio.com/forums/soli...l-interview-bjt-vs-mosfet-77.html#post1206850) I found a related question:
"What's the difference between IRF parts with and without suffix "N"?
For example IRFP250 and IRFP250N." But I couldn't find any answer in the same thread.
A general look at the datasheets tells us that IRFP250N is newer than IRFP250, with lower capacitance figures, among other slightly better measures.
http://www.irf.com/product-info/datasheets/data/irfp250.pdf
http://www.irf.com/product-info/datasheets/data/irfp250n.pdf
That´s my humble opinion.
Apex F100
In this thread http://www.diyaudio.com/forums/solid-state/162081-dc-servo-mosfet-amplifier-4.html
I found this
It is almost perfect for my application except for availability of BF421/2 are there any alternatives?
In this thread http://www.diyaudio.com/forums/solid-state/162081-dc-servo-mosfet-amplifier-4.html
I found this
It is almost perfect for my application except for availability of BF421/2 are there any alternatives?
Shouldn't Q1 and Q2 in the schematic be BC556?
BC546 is NPN...
Product Folder - BC546 - NPN Epitaxial Silicon Transistor, Fairchild Semiconductor
Also, R9 and R10 seem to be in the wrong place. Shouldn't they be on the left side of R11?
BC546 is NPN...
Product Folder - BC546 - NPN Epitaxial Silicon Transistor, Fairchild Semiconductor
Also, R9 and R10 seem to be in the wrong place. Shouldn't they be on the left side of R11?
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APEX F100
part list
kom=peace(s)
otpornici:resistors
220k 3kom
1k 6kom
2k2 5kom
100k 1kom
3k3 2kom
15k 1kom
1M 1kom
56k 1kom
100r 2kom
22k 1kom
180r 1kom
4k7 2kom (ili 1kom + 1 vertikalni višeobrtni trimer od 10k,za podešavanje mirne struje ako se ide na ab-klasu!)
.............(or 1 peace + 1 vertical multiturn trimer 10k,for adjusting bias if is to be done in ab class!)
0,22r 5W 4kom
5r6 2W 1kom
kondenzatori:capacitors
22uF 2kom
100p 1kom
220n 1kom
1u blok (wima 63V) 1kom
47u 50V 1kom
22p 1kom
22n250V 1kom
470p 1kom
10p 2kom
100n250V 3kom
100n 2kom
100u63V 2kom
tranzistori:transistors
bc556 2kom
bf420 2kom
bd139 1kom
bf421 1kom
bc337 1kom
bc327 1kom
irfp240 2kom
irfp9240 2kom
diode:diodes
1n4148 10kom
1n4007 2kom
žuta led obična mutna 5mm 1kom (ordinary yellow led)
zy2,7 2kom
zy15 2kom
zf12 2kom
ic:
tl071
part list
kom=peace(s)
otpornici:resistors
220k 3kom
1k 6kom
2k2 5kom
100k 1kom
3k3 2kom
15k 1kom
1M 1kom
56k 1kom
100r 2kom
22k 1kom
180r 1kom
4k7 2kom (ili 1kom + 1 vertikalni višeobrtni trimer od 10k,za podešavanje mirne struje ako se ide na ab-klasu!)
.............(or 1 peace + 1 vertical multiturn trimer 10k,for adjusting bias if is to be done in ab class!)
0,22r 5W 4kom
5r6 2W 1kom
kondenzatori:capacitors
22uF 2kom
100p 1kom
220n 1kom
1u blok (wima 63V) 1kom
47u 50V 1kom
22p 1kom
22n250V 1kom
470p 1kom
10p 2kom
100n250V 3kom
100n 2kom
100u63V 2kom
tranzistori:transistors
bc556 2kom
bf420 2kom
bd139 1kom
bf421 1kom
bc337 1kom
bc327 1kom
irfp240 2kom
irfp9240 2kom
diode:diodes
1n4148 10kom
1n4007 2kom
žuta led obična mutna 5mm 1kom (ordinary yellow led)
zy2,7 2kom
zy15 2kom
zf12 2kom
ic:
tl071
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