Power supply voltage for using PoE splitters

Dear Community
What is the power supply voltage for Apple TV 3?
Power consumption has been specified on the Apple product site, but not the power supply voltage.
Should be 5, 9 or 12 Volt.
Thanks!

http://docs-europe.electrocomponents.com/webdocs/0d88/0900766b80d88153.pdf
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The output of a power supply in labview using a Magna Power LXI over RS232 to simulate a periodic voltage.

How can I toggle the output of a power supply in labview using a Magna Power LXI over RS232 to simulate a periodic voltage? Any help would be apreciated?

LXI is Ethernet communication.
Does the power supply have an RS232 port?
Are you looking for an RS232 to Ethernet (LXI) Converter
https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=rs232%20to%20ethernet%20ip
But to simulate a periodic voltage you need to send the SCPI "Source" command to the power supply in a loop.
Changing the Voltage setting in periodic value.
How fast of a periodic voltage do you need?
You may be limited to how fast LabVIEW, Windows and your power supply can respond to commands.
Use VISA writes. It is the same for LXI as it is for RS232. The LabVIEW code would be the same.
After you select the corrent VISA Ref, either a com port or an IP address, LabVIEW does not care if it is LXI or RS232.
From a Magna manual I found
Command Syntax
[SOURce]:VOLTage[:LEVel][:IMMediate][:AMPLitude] <nrf+>
[SOURce]:VOLTage[:LEVel]:TRIGgered[:AMPLitude] <nrf+>
Examples
VOLT 200
VOLTAGE:LEVEL 200
VOLTAGE:LEVEL:IMMEDIATE:AMPLITUDE 2.5

Help : power supply- voltage regulator

Thank you for all those that have replied me towards this power supply. In particular Lacy and Kittmaster.
I have developed a basic voltage regulator . However, I want to get a power supply that can deliver like 60V, and take about 10A current, because that what the load will require.
The regulator I have developed only delivers about 20V, I use the formula Vo = (R2/R3 + 1) * Vref. where my Vref is now 10V ( 2 zener diode). Even when I tried to decrease the resistance of R3, it does not make a difference.
Any help will be appreciated.
Attachments:
Power Supply Voltage Regulator.ms9 ‏1107 KB

O.K. I believe I have got it. There was a 2 fold problem with your regualtor and I will outline them below.
1) For some reason I could not get the 3-terminal Virtual Op Amps to work in this circuit. I traded that out for the 5 Terminal one. It is the very last one in the list of the Virtual category.
2) You are comparing your voltage from the bridge to your output voltage. If you have your input referenced to 10V and your output dviding this by a factor of 2 then once the voltage at the divider junction reaches 10V then the op amp will stop driving the transistor. Therefore you are only going to get 20V Out (ref*2 since both resitors are equal in value)). Therefore, you have to have your input reference to what you want the output to be. In this case 60V is what you want so you have 30V at the divider junction (Vo/2 since both resitors are equal value) your input reference would have to be 30V. I have never heard of a 30V Zener (they may exist, but it seems to me tha they would have to be quite large). so you may have to use a voltage divider on the input side instead.
It is my opinion that the design of this regulator is not going to work for you in reality if you decide to build it. The 2N2904 I I know is not going to handle 10A in reality. Based upon my findings I don't even know if you are going to be able to use an op-amp as the error amp due to the amount of voltage that has to be tied into it.You may be able to find such an op-amp but you will have to do some research to find one. I think most of the op amps in Multisim are low voltage in the range of 5VDC-22VDC. I would suggest looking on the internet and see if I could find a better alternative that uses more robust components or if you definitely want to design this on your own, reasearching the components in Multisim to see if any of them can handle the voltage and current requirements.
I hope this helps and I haven't confused you in any way
Message Edited by lacy on 10-06-2007 02:24 PM
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Power Supply Differences for Beige G3's

Need a bit of input here.
The original Power Supply from the beige minitower poached itself, and I've one from a desktop.
Differences are, the MT connector harness has all 20 pins wired, but the desktop only 17. I've checked high and low, found some info on changing the power jumpers but cannot find any info on the actual leads.
I have the voltage regulator from the DT so I can swap that to match the power supply..
I'm a bit baffled here, as the boards between the tower and desktop were identical, the only difference being one had a 300mhz and the other a 266mhz CPU.
THAT in an of itself is academic, since the Sonnet card is going in, and I never swapped any jumpers for the 500mhz or 1ghz cards in either unit.
Am I over-thinking this, or can I just fire away and get on with building my mod-box?
Deb.

Am I over-thinking this
Yes. There is a jumper way over in the corner of the motherboard by itself that governs which power supply you are using.
Done.

HP vs15 monitor audio power supply voltage and amps

I have a HP vs15 monitor that I need to know the audio power supply voltage and amperage.

HI grizspeck:
Thank you for your inquiry.
I am sending you a link to the specifications of he HP Pavilion vs15 monitor click here.
Sparkles1
I work on behalf of HP
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HT1766 Hello there, started to sinc my iPad 3 to my iPhone 5 with iCloud and a lot off the items did copy over, I was connected to a power supply but for some reason it's still missing half the items and I am struggling to retrieve them can you help pleas

Hello there, started to sinc my iPad 3 to my iPhone 5 with iCloud and a lot off the items did copy over, I was connected to a power supply but for some reason it's still missing half the items and I am struggling to retrieve them can you help please.
Thank you Callum Gordon

Well the term "hotlined" I have never heard before. In any case many states (like NY) just passed regulatory powers to the State Public Service Commission of which it may be called something different in your state. You could file a complaint with them. Or file a complaint with your state attorney generals office, they also take on wireless providers.
The problem here is the staff you speak to are poorly trained, in days gone by it took one call to them and they pulled up your account and see the error and had the authority to remove any errors. They did not remove legitimate account actions, but used their heads instead of putting a customer off or worse lying to the customer.
Its a shame you have to go through what you going through.
Good Luck

Is it possible to change Power Supply unit for Lenovo H420 PC ?

I have 2 questions really as i recently bought this budget system.....I was amazed to see that the PSU was only 280 watts for this systemwhich kind of limits what Graphics card I can upgrade to.
My questions are :
1) is it possible to upgrade the Power Supply unit for the H420 from the default 280 W to say to a 400 W one?
2) If I cannot upgrade the PSU, what is the best performing Graphics Card that I can use in this system? It was pre-installed with a NVIDEA GeForce GT 520, which isn't the best around.
My 6 yr old Dell Dimension 8400 system with Win XP, which i have discarded allowed me to insert NVIDEA GeForce GT 240 card, which i think is a slightly superior card to the above one. Needed a 300 W PSU

Hi RBec and welcome to the community,
Is this your thread over there? If not, it gives a few options concerning the PSU.
Dave
T430u, x301, x200T, x61T, x61, x32, x41T, x40, U160, ThinkPad Tablet 1838-22R, Z500 touch, Yoga Tab 2 Windows 8.1, Yoga Tablet 3 Pro
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Power Supply Unit for a PSC 1205?

Dear HP! Is it possible to buy a new or repaired power supply unit for my PSC 1205? Part no. Q1647-60019. Best regards Lars

It doesn't seem like this part is available in the HP Parts Store. I suggest you check one of THESE HP Part Partners in the US if they have this part.
PS: This forum is not an official way of contacting HP.
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I am an ex-HP Employee.

Problem with Get the current and voltage from HP Power Supply (HP E3631A), using the GPIB interface.

my USB device's power support is from the DC Power Supply ( HP E3631A)
I need to read using current from a DC Power Supply ( HP E3631A),via GPIB interface.
When I use the follow command.Why can't read the current value.My environment is in vc++ 6.0.
"APPL P6V,5.0,1.0"
"OUTP ON"
"MEAS:CURR? P6V"
attached the NI SPY File.Please check it.
Can you tell me what the problem is ??
Thanks in Advance !
Hope you can solve my problem !!!"
Attachments:
E3631AERR.spy ‏7 KB

Hi neilchuang,
A read timeout error is usually caused by an error on the command string sent.
The first thing I would check is if the instrument requires a termination character at the end of each message (such as linefeed). I noticed in the Spy capture that the commands do not have a termination character attached. This means that the instruments never recognized that you completed the query command, it doesn't execute the requested action and as a consequence of that it doesn't have any data to return.
One question: Is the instrument detected by MAX when you scan for instruments?. If yes then you can assume that the GPIB software and hardware are properly installed. The scan for instruments sends the *IDN? (terminated by a linefeed). You can right-cli
ck on the instrument entry in MAX and select "Communicate with instrument". Notice that at the end of the command the linefeed is included (\n).
Double check with the instrument manual if the commands sent are the right ones.
Finally, there is an instrument driver available in the idnet library: www.ni.com/idnet. Search for 3631. Since you are working in C you can use the LabWindows/CVI Plug and Play driver. Even if you decide not to use the instrument driver, you can still use it as an excellent reference on how to program with the instrument.
Hope this helps!.
DiegoF
National InstrumentsMessage Edited by Molly K on 02-18-2005 11:05 PM

Airport Extreme Power Supply Voltage?

We just moved and apparently packed our AEBS separately from the power supply. Does anyone know the voltage and output current (or power) from the power supply so that I might use an alternative until we find the original?
I hate to spend the $20 (and shipping) for a unit I'll find some days from now...
Thanks,

The Airport Extreme power supply brick output is rated at 5.1V DC, 2.4 A. The polarity of the plug's sleave is negative, the center terminal is positive.

Power supply/adapter for Motorola ONT1000GI4

I fell for the three service package when getting FiOS initially. It turned out I didn't use the phone at all and I haven't watched TV in months. I digress, during the install, I noticed the tech installing the battery which, according to him was to facilitate phone calls during power outages.
The battery backup unit started beeping periodically the past few weeks indicating it needs to be replaced (though supposedly, it lasts 5 years and I've had it for just over one.) I decided to disconnect it altogether which is when I realized that the ONT is powered directly by the unit with some proprietary connector that looks similar to an S-video cable.
I would like to purchase a standalone power adapter/cable to power it via wall adapter instead of having to use the big battery which serves no purpose to me aside from taking up space and being an eyesore. Unfortunately, I've been unable to find much info on the ONT model to help me in my search. Also, there's no power information on the ONT indicating the voltage and amps required.
Anyone have any ideas? Thanks in advance.
P/N is 567004-003-00
FA P/N (not sure what this is, but it's on the unit as well) is 573796-003-00

You cannot easily replace the power supply / battery unit ("BBU"). The ONT communicates with it to obtain status on power and battery. It's more than just supplying the correct voltage.
You have several options to deal with the low battery:
Remove the current battery and press the battery silence button.
Re-install the current battery and see if that turns off the warning beep.
Buy a new battery. Online prices are very good.
Earplugs.
Note that if you have a battery, the internet will stay up for a minute or two during power outages. If you want longer run time, you need to supply your own UPS.
Good Luck.
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Need Help with power supply reccomendations for my graphics card

hi
i have a MSI GeForce GTX 780 Graphics card... i built my own system, i also got a rosewill rx750 power supply in it which i think is causing me problems, the computer works great until i get into games like titan fall and try and get into a game then it restarts the computer on its own.. has done this with a few games, but it works fine when surfing the net and so forth, i have read its to do with the power supply being week and also read my chosen power supply isnt that good... anyone got any recommendations for me that i should look at or am i looking in the wrong direction with whats wrong with my pc... any help would be great thanks

yes the PSU is the most important choice out there and corsair and seasonic are the best out there! (never buy cheap PSU's as like abvolt said a cheap one can easily kill your more expensive parts)
Cheap PSU = made of the most cheap parts they could get "think cheap shanghai parts are used that may be of any quality good or awful as its just what they could get for the lowest price" (ever bought anything that was super cheap they break very easily)
Quality PSU = the use of good quality well made parts and will have very good testing done on them to make sure they are stable and pass very tight regulations and conform to specs for 10-30 different factors each.
a cheap low quality PSU I class as a paper weight as it will never go near a computer (maybe i would use one as a basic bench PSU for things i do not care if they die or just for testing a fan or something that rubbish dirty power is not really a major problem but silicon is not tolerant to dirty power and will kill parts)

Power supply needed for MS-7220 (Diamond Plus) and others.

The following statement is taken form the K8B Diamond Plus Manual.
For ATX 12V power connection, it should be greater than 18A.
If I am interpreting correctly, the ATX 12V connector should have dedicated to it a minimum of 18A.
My first, question is if the Power Supply has two or more rails, how do you know the power dedicated to the ATX 12 connector on the Power Supply?
Second, if a +12V rail is not dedicated the connector, how do you know what is connected to each rail of the Power Supply?
This maybe the source of why many are saying, they have more stable system performance when using single rail Power Supplies.
I have tried eleven different manufactures to get more detailed Power Supply specifications, but no responses; today through February 1st is the Chinese New Year.
Those of you running the K8B Diamond Plus, what are you using for Power Supplies and are you having any instability problem?
One thing I did find curious was that going the manuals and in most all of the newer Socket 939 motherboards have this specification, but nothing in the motherboards specifications of on the MSI Web Site about this required and the are a lot of 500-600 Watt power supplies sold that do not meet this specification.
The statement Total Wattage does not mean a thing has even more meaning to me now.
Are we going to have to know the Current Rating of each cable on the output of a Power Supply now to insure we are purchasing the correct Power Supply?
Roger

Roger
Ihave a Tagan 580w U22 with switchable dual/combined +12v rails and it is very stable,set it combined for 35a.
Only thing to ponder was the 4/8 pin +12v/p4 connector,power supply has the correct split 2x4pin connectors so does the board but there is a little removable cover over 4 pins,so thinking MSI fitted it there for a reason I have fitted only one 4 pin connector,no problems as yet.
Think you may well have a point re the 18a.
I have just given my son my old sli platinum/cpu/heatsink/ram/vga card,this setup ran 250/11/4 @ 1.4v & ram 2.5 3 3 7 1.1 @ 2.75v with the Tagan.this setup now fitted in his case but with a dual 18a rail Enermax and he can't o/c stable to the old settings.Case has better cooling than the wavemaster it all came from.
Dont think the enermax is bad just that it supplies the power a different way.
Regards
Rossoevo

Plotting IVI Power Supply voltage

I am usint SignalEpxress to control to my Agilent N6700B power supply, and I am successfully commanding the instrument and querying the output voltage.
However, I can't seem to figure out how to plot the output voltage on a strip chart. The 'IVI Power Supply' step only seems to offer two output options:
'over-voltage tripped'
'over-current tripped'
It doesn't therefore seem possible to hook the output voltage of the step to a data view strip chart. Any ideas on how to accomplish this?
Thanks,
Aaron

@astibich, just out of curiosity, can’t you accomplish the same in software. Since you’re getting the required values of voltage, you can plot that within the PC. If required these values could then be transmitted to a real-time plotter as well. If you’ve already found a better solution to this, I’d love to know, just for information. It’s the ingenious ideas of people that actually inspire me, like everyone else, to think outside the box.
printed circuit boards

Power supply options for H530

I am currently running a Dell Dimension 2400 with 640 meg of ram and Windows XP. The computer has served me well for the last 6 years but I think it's time for an upgrade. We use our computer for basic email, web surfing and occasionally microsoft office documents. I received a email this morning that the Lenovo H530 is on sale for $399.00 (100 dollars off). It has 4 GB of ram, windows 7, 1TB hard drive, Intel dual core G3220 processor. It is expandable to 16 GB of ram. I am sure that this computer is sufficient for our needs. The only question that I have would be the power supply. The unit comes with a 180 watt power supply. I know in the past I attempted to install a video card in my old Dell and it wouldn't work because of the power supply. Evidently it did not produce enough power to run the system and the additional video card. Will I run into any issues if I wanted to install a power supply with more wattage in the Lenovo so I can install a video card down the road if I wanted? Thanks for your help

hi johnfillippi,
Welcome to the Forums.
AFAIK, you shouldn't have any problems or encounter any issue(s) replacing the stock PSU of the H530 as it uses the standard ATX form factor (the front panel connectors are also standard).
In addition, if you'll be using an aftermarket graphics card other than the one listed on page 49-50 of the hardware maintenance manual then you may want to check this article as you may need to alter some BIOS settings for the graphics card to work (this applies if the BIOS is UEFI enabled).
- Link to picture
Regards
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Power supply voltage for using PoE splitters

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