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Old 12th September 2012, 02:13 PM   #1
alexm84 is offline alexm84  Australia
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Default Auto switch on for Power supply possible?

Hi all,

I have a Klipsch Sub10 in which the internal amp died.

I bought a Sure electronics 300W mono amp board and a 36V 400W power supply. I'm building a separate enclosure for the amp/PSU.

Just wondering if there is a way i can make the power supply switch on only when the sub receives signal (like the subs do standard). I havent finished it, but at the moment it looks like i will have to turn on the switch for the power supply when i watch a movie and then off again when i have finished so the power supply doesn't just sit there ON all the time.

Is there an easy way to do this? Any help would be great

Thanks
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Old 20th September 2012, 03:25 AM   #2
alexm84 is offline alexm84  Australia
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Nobody?

Is there nothing i can buy that will trigger the power supply or amp ON? Something that is triggered by the LFE output maybe?
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Old 20th September 2012, 09:13 AM   #3
AndrewT is offline AndrewT  Scotland
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read ESP.
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regards Andrew T.
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Old 20th September 2012, 11:33 AM   #4
DF96 is offline DF96  England
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Sounds like a bootstrap problem.
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Old 20th September 2012, 01:08 PM   #5
alexm84 is offline alexm84  Australia
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I'm not sure what either of this two posts mean?
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Old 20th September 2012, 01:36 PM   #6
Mooly is offline Mooly  United Kingdom
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ESP,
Elliott Sound Products - The Audio Pages (Main Index)

Not sure what DF96 means
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Old 20th September 2012, 01:37 PM   #7
alexm84 is offline alexm84  Australia
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Ah ok,
Thanks i'll have a read.

Yeah not sure what DF96 means either.
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Old 20th September 2012, 01:40 PM   #8
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On the ESP site look at project No 38
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Old 20th September 2012, 01:53 PM   #9
alexm84 is offline alexm84  Australia
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Thanks. Thats what i need.

Will have to read up a bit now as i've never done anything like this before.
No time like the present to learn i guess
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Old 20th September 2012, 02:37 PM   #10
DF96 is offline DF96  England
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A bootstrap problem is a problem which cannot be solved until you first solve the problem. Having solved the problem, you may then solve the problem. The name comes from the idea of pulling yourself up in the air by tugging on your own bootstraps/shoelaces.

An auto-power-on circuit will work just fine provided you have first auto-powered-on the supply for the auto-power-on circuit.
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