| Mario Pankov |
Hello,
I need a schematics for a power supply-stabilizer unit. I have to use one power supply which should rectify the variations in the electricity ( electric filter ) and to work as a large capacitor, so an output of stable 220V should be delivered to each appliance. Probably something like the Linn Armaggedon power supply but with more plugs which would guarantee a constant electricity output specifications.
Thanks in advance! |
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| Corax |
I don't know the Linn Armaggedon power supply, but are you talking about 220 volt AC or DC???
For 220 Vdc you might look/search for regulated tube amp power supplies with success.
In case you talk about 220 Vac (a so called "AC Automatic Voltage Regulator") I guess you have no luck in this forum.
Nevertheless I found some pages in the internet with such an ac regulator thing (rated for 1000 watt) at:
http://hifi4me.biz/cz/hifi/hifi.php?artId=7630&lang=cz or
http://hifi4me.de/de/hifi/hifi.php?artId=7635&lang=de
starting at a price of 145,- Euro!
For that low price you cannot build it yourself.
I know there was in the early years of electronics a principle that uses a special type of (magnetic) transformer to regulate the ac voltage of the mains - sort of an L-C-oscillator which is in resonance at the mains frequency where the L-part is/was a huge transformer. But I don't remember how that baby works.
Anyhow, good luck for your search. |
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| Mario Pankov |
Hello Corax,
I have been testing some of these and they didn`t work at all. What I need is a power supply with an inbuilt power filter, something that will keep the voltage constant and that will avoid any power drops, it should work as a big capacitor.
Vielen Dank fur Ihre Antwort!
Mario |
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| AndrewT |
Hi,
like a big capacitor can be done with DC.
You need AC regulation.
That is completely different.
Read Corax's post and links again. |
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| TheMG |
Why not get a UPS? Just make sure you select one that is active 100% of the time. Cheap UPSes switch between AC power and battery power. Good UPSes however condition the power 100% of the time, and use the battery as necessary to make up for droops in AC power. The result: a very clean and stable power source.
Oh, and try to get one with sine wave output. Square wave may cause problems with harmonics n stuff. |
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| Mario Pankov |
| Thank you, the UPS might work fine. |
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| golam |
If you require to supply unhindered 220 volts to your appliances, you require an efficient voltage stabilizer/regulators. But if you require stable voltage and also stand by power supply with stable voltage, when mains fail, then you require an ups/ips with inbuilt voltage regulator.
If you want to use only resistive load, then you can use an square wave ups/ips and if you want to use resistive and inductive load, then also you can use square wave one. But if you want to use only inductive load, then either modified sine wave or sine wave inverter has to be used. Square wave one is cheaper than modified sine /sine wave inverter. You yourself can try to make one, either linear or smps.
If you require help, I will try to provide as much as I can.
Iam making smps inverter and in the process of making sine wave one. |
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| pjpoes |
one additional advantage of the online UPS is that it offers a lower impedance AC supply, assuming its designed appropriatly, and also offers lower distortion.
If the only requirement is stable 220 volts, and not clean 220 volts, than a simple voltage regulator will work. These typically use a multitap transformer, and work pretty well. They have been known to be slow to respond, but is commonly thought to only be an issue in sensitive lab equipment. In such situations a stabilized AC supply is used, such as those made by Elgar. I believe the Elgar method to be very effective, and if they were cheaper, would be great to use in Audio situations. They massively lower distortion, have very good and fast regulation, and lower the impedance of the supply.
As far as offering something like a big capacitor, an inductor will do that. Both a parallel and series inductor has the ability to store energy and stabilize the line, but of course, do different things to the voltage.I believe AndrewT could better describe there use in such situations, and may even correct me, as he was helpful when I designed my CLC power supply. None the less, as I understand it, a simple large Inductor from L to N will give some voltage stabilization properties and is similar to Richard Grey's systems. However a series inductor will do a better job of cleaning the incoming AC of problematic noise on the individual line, and will also offer some energy storage as well. |
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