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100W Ultimate Fidelity Amplifier
100W Ultimate Fidelity Amplifier
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Old 9th December 2015, 12:54 PM   #5671
gaborbela is offline gaborbela  Canada
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Originally Posted by thimios View Post
Yes but the goal is to avoid the relay.
I agree
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Old 9th December 2015, 06:33 PM   #5672
alex mm is offline alex mm  Romania
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I like to take part in this project , I mean to layout the PCB .....
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Old 9th December 2015, 07:04 PM   #5673
still4given is offline still4given  United States
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100W Ultimate Fidelity Amplifier
Quote:
Originally Posted by alex mm View Post
I like to take part in this project , I mean to layout the PCB .....
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Old 9th December 2015, 07:31 PM   #5674
c08bm is offline c08bm  United Kingdom
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Originally Posted by alex mm View Post
I like to take part in this project , I mean to layout the PCB .....
Please do, but share lay file too.
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Old 10th December 2015, 01:14 AM   #5675
vinski80 is offline vinski80  Philippines
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Originally Posted by apexaudio View Post
This DC protect have AC off detect circuit to fast switch off relay and about +/-1V DC detect circuit.
Mr. Mile,

What would be the required AC supply voltage for this DC protect circuit?

Is this circuit applicable to any types of DIY amps?


Regards,

Vinski80
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Old 10th December 2015, 08:29 AM   #5676
apexaudio is offline apexaudio  Serbia
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Originally Posted by vinski80 View Post
Mr. Mile,

What would be the required AC supply voltage for this DC protect circuit?

Is this circuit applicable to any types of DIY amps?


Regards,

Vinski80
AC is 2x25~40v from main transformer, protect can be use with any amp.
Regards
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Old 10th December 2015, 02:44 PM   #5677
vinski80 is offline vinski80  Philippines
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Quote:
Originally Posted by apexaudio View Post
AC is 2x25~40v from main transformer, protect can be use with any amp.
Regards
Thanks. I'm so excited to build this stuff.

By the way, will this circuit also protects the output transistors(amplifier unit) if ever the speaker terminal or the speaker itself shorted?

Regards,

vinski80
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Old 10th December 2015, 03:45 PM   #5678
apexaudio is offline apexaudio  Serbia
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Quote:
Originally Posted by vinski80 View Post
Thanks. I'm so excited to build this stuff.

By the way, will this circuit also protects the output transistors(amplifier unit) if ever the speaker terminal or the speaker itself shorted?

Regards,

vinski80
Yes if PRO pin is connected to emiter of NPN output transistors in positive rail.
Regards
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Old 10th December 2015, 04:03 PM   #5679
still4given is offline still4given  United States
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It looks like the PRO portion is missing in the latest protect circuit
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Old 10th December 2015, 05:04 PM   #5680
apexaudio is offline apexaudio  Serbia
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Originally Posted by still4given View Post
It looks like the PRO portion is missing in the latest protect circuit
PRO portion is add, but will work only with AX16, HV23...
Attached Images
File Type: jpg APEX SST Protect.JPG (267.6 KB, 1290 views)
File Type: jpg APEX AX16.jpg (463.7 KB, 1239 views)

Last edited by apexaudio; 10th December 2015 at 05:10 PM.
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