I have a question mister manoj, the power supply circuit this one you see (green) has DC protection or just a soft star circuit time delay seconds for the SPK out ? on lastly I made the updates from the AUD600 circuit you send me and it was difficult for me to find space for the components but I was able to do so, yesterday I forgot to add the 470nF 400V caps and now is on the PCB I think this will be a great project for me
Hi,
Yes its a DC protection with @3Sec delay(power On)
the ckt is deferent what i gave AUD600 Rev3.0.1
NB: nice PCB,pls check power cap(220uF/160v) is wrong direction.
Regards
MANOJ
Hi,
Yes its a DC protection with @3Sec delay(power On)
the ckt is deferent what i gave AUD600 Rev3.0.1
NB: nice PCB,pls check power cap(220uF/160v) is wrong direction.
Regards
MANOJ
oh my God yes you right sir, how did I not notice that ? 😕 I apologize I will corrected
one question sir, I do not own an oscilloscope to adjust frequencies what value resistor for normal operation "stable and good" and also another question, will this work with 55V +/- rails ? I'm guessing value of this resistors that are selected on the image they need to be change right ?
oh yeah I do like this layout that is why I decide to tweaked a bit 🙂 also I a made the re-drawing of the power supply I know that the schematic is different but if this first version is good to go I can used let me know when you get a chance sir is the version supply is ok to use good day sir
Best Regards
Juan
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Looks like it's clocked FB amp and not an UCD. Could please share the schematic?Hello
greetings time to try full bridged d class
warm regards
Andrew😉
500R-1k - adjust frequencies
is from 500R to 1K adjustment right ? this is the last image of the layout I made some changes I will continue checking later for bugs from me self 🙂 I don't even trust myself lol
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adjustment of the frequency depends on the ratings of the capacitor and resistor feedback. What denomination are you, I do not know. Therefore, I can not say exactly. The higher the value of the trimming resistor, the lower frequency
adjustment of the frequency depends on the ratings of the capacitor and resistor feedback. What denomination are you, I do not know. Therefore, I can not say exactly. The higher the value of the trimming resistor, the lower frequency
I'm thinking to run the amp only to 8 ohms load and lower rail voltages example 55V +/- ,I'm not interested in push the amp too much only to have it working correctly and nicely stable for decaf music that I like 🙂
if 55V rails can not be use I do not mind get me a 55 -0- 55 toroid I will continue reading here the different post the info most be somewhere else here sir
Best Regards
Juan
Directly opposite .The higher the value of the trimming resistor, the lower frequency

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Yes , higher R - higher f , lower R- lower f.
But there is a limit , and if the signal at output of integrator becomes too low - expect malfunction.
But there is a limit , and if the signal at output of integrator becomes too low - expect malfunction.
hello guys if some one can help me I will appreciated 🙂, I notice that they are 2 MUR1560 place on the drain cathode to source anode I need to know if I can use 1N5408 instead what I did I just leave both options on the PCB just in case, and last question what is the purpose of those two diodes ?
Regards
Juan
Regards
Juan
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hello gentlemen can some one give a revision of this PCB's
I'm worried that it might have errors from me if any help I be happy to share PDF file after all is correct, I do not mind share guys
yes indeed, also I'm thinking to order a few PCB of the AUD600 Rev 3.0.1 and supply too but need your help guys I will appreciated any help 🙂
Best Regards
Juan


Best Regards
Juan
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Hi,
see text and correct
Regards
MANOJ
hello sir thank for your help, so the filter cap 470nF/400V need to be as closer the mosfet legs ? yes I can do that, I fix trim pot value to 2K2 and input polarity corrected, and took out the two 1N5408 out of the board, the only thing that got me confuse is the 1N4148 diode I look at the schematic Rev 3.0.1 and I notice that pin 3 U1 has been connected to that diode to the anode then the cathode is connected to a 470nF and the other leg is connected to red LED cathode ..... uhmmmm?

ok sir good day thanks 🙂 I will post later
Best Regards
Juan
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Mister manoj I made some more changes to the AUD600 Rev 3.0.1 please when you get a chance or better say time check layout, the new thing I did is add at least more than 3 options coil with part number 1D17A-220M 22uH 6A, VER2923-333KL 22uH coil craft 100A or the regular rings T157-2 or T106-2 actually 4 options 🙂
Regards
Juanhttp://www.diyaudio.com//www.pinterest.com/pin/create/extension/
Regards
Juanhttp://www.diyaudio.com//www.pinterest.com/pin/create/extension/
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- Home
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- Class D
- UCD 25 watts to 1200 watts using 2 mosfets