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July 30, 2014, 01:01:45 AM
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DIYstompboxes.com  |  Projects  |  Beginner Project  |  Regulated and unregulated power suppy..? what the difference? 0 Members and 1 Guest are viewing this topic. « previous next »
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Author Topic: Regulated and unregulated power suppy..? what the difference?  (Read 4095 times)
rosssurf
Posts: 241


Regulated and unregulated power suppy..? what the difference?
« on: August 26, 2006, 06:14:46 PM »

I was wondering what the difference is between a regulated and un- regulated power supply. How do I know if the wall wart I have is regulated.
Is one noisier?
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aron
Administrator
Posts: 10184

Aron Nelson


Re: Regulated and unregulated power suppy..? what the difference?
« Reply #1 on: August 30, 2006, 03:34:40 PM »

Measure it. The unregulated one might put out a lot more voltage than you might expect. Usually the regulated one is quieter.
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rosssurf
Posts: 241


Re: Regulated and unregulated power suppy..? what the difference?
« Reply #2 on: August 30, 2006, 06:32:36 PM »

Thanks Aron! I will measure it.
 Are the standard Boss power adapters regulated?

 Is measuring them the way too tell if they are regulated or are they marked in some way?
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aron
Administrator
Posts: 10184

Aron Nelson


Re: Regulated and unregulated power suppy..? what the difference?
« Reply #3 on: August 30, 2006, 07:27:25 PM »

Yeah, if they measure 9VDC or close to it, they are regulated OR if they say "Regulated"  Wink
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Sir H C
Posts: leet

Chris M


Re: Regulated and unregulated power suppy..? what the difference?
« Reply #4 on: September 11, 2006, 06:19:33 AM »

A regulated supply uses more circuitry to keep the output voltage nearly constant.  An unregulated supply is usually just a transformer, some diodes and a capacitor.  As such, if the wall voltage goes up or down, the supply voltage will go up and down proportionally.  Also, as the load on the supply changes, the voltage put out by the supply will vary.
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rosssurf
Posts: 241


Re: Regulated and unregulated power suppy..? what the difference?
« Reply #5 on: September 11, 2006, 08:49:54 AM »

Thanks that explains it!
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