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100W Ultimate Fidelity Amplifier
100W Ultimate Fidelity Amplifier
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Old 11th December 2015, 09:44 PM   #5691
bimo is offline bimo  Indonesia
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Quote:
Originally Posted by donpetru View Post
The way you have connected R9 = 200 Ohm is not a good idea (your solution for OFFSET adjustment is not very efficiency). Please think again.
Do you think it must connect to emitter of the LTP (paralel with R5 and R10)?
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Old 12th December 2015, 03:55 AM   #5692
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Originally Posted by bimo View Post
I modified it and made a PCB layout.
If the value of the components of the schematic is different from simulation file, the simulation is the correct one.
I revise the PCB layout. I change C9 dan r18 position.
Attached Files
File Type: pdf AX16ModBOTTOM.pdf (44.2 KB, 504 views)
File Type: pdf AX16ModTOP.pdf (50.6 KB, 465 views)
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Old 12th December 2015, 05:18 AM   #5693
still4given is offline still4given  United States
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100W Ultimate Fidelity Amplifier
That doesn't make sense. Can you post the new schematic?
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Old 12th December 2015, 06:20 AM   #5694
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Quote:
Originally Posted by still4given View Post
That doesn't make sense. Can you post the new schematic?
Shematic is same as 100W Ultimate Fidelity Amplifier

I change the R and C position because R connection to the transistor have high impedance, and it might interference from output signal.
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Old 12th December 2015, 06:43 AM   #5695
still4given is offline still4given  United States
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There is a trace that is not connected. Is that by design?
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File Type: jpg ax16 foil trace.jpg (119.9 KB, 2019 views)
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Old 12th December 2015, 06:57 AM   #5696
bimo is offline bimo  Indonesia
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Quote:
Originally Posted by still4given View Post
There is a trace that is not connected. Is that by design?
Yes, it used for guarding the high impedance node from output signal.
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Old 12th December 2015, 07:59 AM   #5697
thimios is online now thimios  Greece
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Originally Posted by apexaudio View Post
PRO portion is add, but will work only with AX16, HV23...
Is someone who work drawing a pcb for this new schematic?
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Old 12th December 2015, 04:00 PM   #5698
donpetru is offline donpetru  Romania
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Quote:
Originally Posted by bimo View Post
Do you think it must connect to emitter of the LTP (paralel with R5 and R10)?
Yes, it's much better, primarily because of R9 cursor in the event of interruption (in time may compromise the wiper resistance) does not cause the emergence of the offset voltage in the output stage.
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Old 12th December 2015, 08:53 PM   #5699
bimo is offline bimo  Indonesia
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Quote:
Originally Posted by donpetru View Post
Yes, it's much better, primarily because of R9 cursor in the event of interruption (in time may compromise the wiper resistance) does not cause the emergence of the offset voltage in the output stage.
OK, I revised it.
Attached Files
File Type: pdf AX16ModSCHREV1.pdf (37.5 KB, 1638 views)
File Type: pdf AX16ModBOTTOMREV1.pdf (45.0 KB, 1236 views)
File Type: pdf AX16ModTOPREV1.pdf (51.2 KB, 1283 views)
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Old 12th December 2015, 08:59 PM   #5700
thimios is online now thimios  Greece
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Originally Posted by bimo View Post
OK, I revised it.
Nice designed pcb bimo!
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