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1000W Simple PA Amplifier
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Old 14th November 2013, 07:46 AM   #511
boss2009 is offline boss2009  Philippines
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Originally Posted by wiljj78 View Post
Protect Files...
Hello Sir Wiljj78.... can you share for the PCB of this not mirrored. I will use for tonner transfer.

Thanks & Regards
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Old 14th November 2013, 09:33 AM   #512
AndrewT is offline AndrewT  Scotland
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Quote:
Originally Posted by apexaudio View Post
Protect from post #28 can work with 24V without any change.
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Originally Posted by boss2009 View Post
Many thanks sir Mile...

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Originally Posted by AndrewT View Post
What is the maximum supply voltage for your version of the 555 timer chip?
All my datasheets show Vsupply <= 18Vdc
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Originally Posted by apexaudio View Post
With transistor add to NE555 out any relay voltage can be use.
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Originally Posted by apexaudio View Post
Supply voltage for NE555 is 5-15V
Apex, are you expecting Boss to create a new LV supply from his 24Vdc supply, to power the timer chip?
Looks like you need to show Boss how.
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Old 14th November 2013, 01:47 PM   #513
apexaudio is offline apexaudio  Serbia
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Originally Posted by AndrewT View Post
Apex, are you expecting Boss to create a new LV supply from his 24Vdc supply, to power the timer chip?
Looks like you need to show Boss how.
No, I expect from boss to made descrite circuit (without NE555) with 24V relay.
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Old 14th November 2013, 01:55 PM   #514
tinitus is offline tinitus  Europe
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Originally Posted by apexaudio View Post
Protect from post #28 can work with 24V without any change.
how much DC will it accept ?

is that adjustable ?
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Old 14th November 2013, 04:13 PM   #515
apexaudio is offline apexaudio  Serbia
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Quote:
Originally Posted by tinitus View Post
how much DC will it accept ?

is that adjustable ?
Use DC voltage for protect same as ralay voltage or higher and add resistor in series with relay or use 2 relays in series with double DC voltage.
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Old 14th November 2013, 10:44 PM   #516
tinitus is offline tinitus  Europe
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ahh, no, I meant how much DC on speaker out, before it shuts down ?
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Old 14th November 2013, 10:54 PM   #517
apexaudio is offline apexaudio  Serbia
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Originally Posted by tinitus View Post
ahh, no, I meant how much DC on speaker out, before it shuts down ?
about +/-1V
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Old 23rd November 2013, 09:18 AM   #518
shravanth is offline shravanth  India
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Originally Posted by apexaudio View Post
You can use this simple DC protection with 40A relay (12V for car)
hello sir i made this protect but how to test that it is working or not please help me. . .
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Old 23rd November 2013, 04:34 PM   #519
shravanth is offline shravanth  India
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Originally Posted by shravanth View Post
hello sir i made this protect but how to test that it is working or not please help me. . .
power supply for SR200 with speaker protection, thermal protection, Temperature controlled fans , transformer soft start , power supply for Sub- woofer crossover
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Old 23rd November 2013, 08:04 PM   #520
tinitus is offline tinitus  Europe
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mains power panel mounted, and signal in/out panel
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