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Multiple Choice Questions On Uninterrupted Power Supply
By sending any of the above list of commands through the interface the instrument supports, the supply can be controlled with a computer rather than pushing front panel keys. This is the crossover point where the power supply goes into the constant voltage mode. Do you have a tech question of your own for Rick? Click here and send it in! For all other voltage/current combinations, the output power will be less. great post to read
Multiple Choice Questions On Uninterrupted Power Supply
This is very useful especially when doing more complex setups like generating dynamic voltage steps using list mode. For a large voltage difference (i.e., low power supply output voltage) and large current, the overall efficiency can drop down to nearly 10%. share|improve this answer edited Sep 22 '16 at 16:11 answered Sep 22 '16 at 15:43 Andrew 3,521420 In order to accomplish #3, there's no problem putting the Schottky diode
- TammiHearts Member Joined: Mar 10, 2013 Messages: 31 Likes Received: 0 Heya guys, I have a question that might be considered really dumb lol.
- This can be done with an oscilloscope or a wideband AC RMS voltmeter.
- EDIT: I don't need to know which (or multiple) supplies are powering the circuit, I just need: (1) stable power to the circuit, and; (2) to know which of the sources
- You can stack two or even 3 diodes in one of the supply lines.
- This is where one output will track the output voltage of another output.
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- This is one reason they are universally seen in personal computers.
What is the original connection between "nurse" and "sister"? The easiest measurement is to connect an AC-coupled oscilloscope to the output of the power supply. Can I disable the DIM function on Monitor Station v1 ? Ups Interview Question If it feels cool to the touch (and I have no doubt that it will), you should be able to use that cord with your PC with no worries.
Custom UPS are often designed at PowerStream to deliver the DC voltages required by the system, thus eliminating inefficiencies in the power conversion, and simplifying the equipment. Ups Technical Interview Questions And Answers Note that this series operation must be such that the current doesn't exceed that of the power supply with the minimum current rating. A typical model is B&K 1686A shown on the right. http://www.tomshardware.com/answers/id-2043144/portable-power-source-monitor.html I would expect a monitor to use a good deal more power than a cell phone charger can provide, so if something failed, then power supply is what I'd be checking
And if your cord does get warm - get rid of it ASAP! #3 LurchFrinky, Mar 19, 2013 VirtualLarry Lifer Joined: Aug 25, 2001 Messages: 35,553 Likes Received: 494 LurchFrinky Power Supply Test Questions One output supplies 0 to 6 volts, intended for digital logic. I just checked one of my average ones and it was rated at 10A (18/3). How do I measure ripple and noise?
Ups Technical Interview Questions And Answers
Newer Than: Search this thread only Search this forum only Display results as threads More... Duration same as above, and Maximum Stacks Per Caster to 1. Multiple Choice Questions On Uninterrupted Power Supply I figure they are all the same that come with (decent brand) power supplies?Click to expand... Interview Questions On Uninterrupted Power Supply Keeping the "cloak" property of the Mothership is a nice indicator: if you see constant de-/recloaking something is messed up.
Typical average efficiencies are in the 30-40% range. http://newsmdcommunications.com/power-supply/power-supply-connectors.html I suppose saying "drain power" would have been better. –Sizzle Jan 11 at 6:03 add a comment| 2 Answers 2 active oldest votes up vote 2 down vote accepted Every device Line regulation is how much the output changes for a change in the input AC voltage. In addition to basic exclusions (dead, enemy etc.) try to narrow down the search filter as far as possible. Uninterruptible Power Supply Questions And Answers
I want to change the host name - is it enough to edit the /etc/hosts file? Valentine's golf! For very finicky designs, one might want to know how the output changes when the three major factors change: input voltage, load, and temperature. my company More resources Tom's Hardware Around the World Tom's Hardware Around the World Denmark Norway Finland Russia France Turkey Germany UK Italy USA Subscribe to Tom's Hardware Search the site Ok About
The metal covers of instruments and appliances are connected to ground (and hence called a safety ground). Mcq On Ups A key fact is that the switching element (a transistor) is either off or fully on (saturated). Thanks you in advance, any help and brainstorming would be highly appreciated!
So, I'd need some kind of workaround.
No, create an account now. Normal AC line voltage variations are on the order of ±10%, but can be more when many heavy loads are utilizing the line at the same time. A power surge is a rise in voltage that goes above normal levels, potentially overloading any active equipment. Interview Questions On Inverter If I buy Garry's Mod, will I need other games to play it?
All Rights Reserved. You must be careful not to exceed the function generator's current capabilities. Did I blow out the battery? Q.
Typical uses is servicing CB radios and automotive stereo equipment. This is not to say that all power cords are created equal, but I have never seen a power cord so bad that it couldn't handle the typical 15A (US) max In this design, all the incoming power is always converted to direct current, which both tops up the batteries and feeds the inverter. So, if you built a Pylon (or 2, taking into consideration the problem above) and then if you are building a Gateway, afterwrads, you'd not be able to build another building
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