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Power Supply Amperage


OEM Specs: Battery: +10.8V 5200mAh, 56W Laptop: +19V 3.42A, 65W Reply Carpenter940 May 4, 2016 at 1:13 pm # Match to laptop. Bill Corless 151 167 kuvamist 7:01 Diode Tutorial & How to build an AC to DC power supply - Kestus: 11:20. Bear in mind DC devices are polarity sensitive and be sure you know how to use a meter less you fry it. Regulated versus Unregulated Unregulated Very basic DC power supplies, called unregulated, just step down the input AC (generally the DC you want is at a much lower voltage than the wall have a peek here

So, the wrong adapter did not actually ruin my device, but the "wrong" adapter itself is now dead. What if I don't know the device's specs, but am replacing a previous power supply with particular ratings? Laadimine ... For a "12 volt 1 amp" supply, that means all is fine as long as you don't try to draw more than the rated 1 A. http://electronics.stackexchange.com/questions/34745/choosing-power-supply-how-to-get-the-voltage-and-current-ratings

Can I Use A Power Supply With Higher Amps

takes 12 vdc.You might want to go to a 300-Watt supply, minimum, if all you're looking for is +12V, and use ALL of the yellow wires (from both, the ATX connector The biggest wall-wort I had was .700 milliwatts. It does not say the polarity and I can not find it online anywhere. the +12V or the -12V are usually down fairly low, as most don't use them as much as the older XT/AT systems did. (RS-232C?

  1. This is different to voltage, where excess voltage can indeed damage a circuit that doesn't have sufficient protection (eg.
  2. share|improve this answer answered May 5 '09 at 1:48 Wedge 50024 add a comment| up vote 0 down vote To share my experience, I've used a 90W adapter to replace a
  3. Current Limit All supplies have some maximum current they can provide and still stick to the remaining specs.
  4. see more linked questions… Related 8Ripple current in a linear power supply transformer-1Using a pc power supply, any risk to electronics?3Difference between voltage and current ratings on a component8Why can't a
  5. Voltage too low – If the voltage on an adapter is lower than the device, but the current is the same, then the device may work, albeit erratically.

The case fan shown below is rated at .12 amps and 12 volts or 1.44 watts. .12 amps on the +5 volt bar represents a load of only .6 watts and I'm going with the original manufacturer specified unit ASAP, and although lower watts/amps/voltage works, original gear is always better. guided post...
Yes you should (MUST if you want to follow proper electrical theory) separate each circuit per it's ampere rating.
Nice catch!! Power Supply Amperage Too High The reason is that durning this switch over time the computer Power is not switched off.

If the device has a DC input of +12V / 5.4A, get an adapter that has a DC output of +12V / 5.4A. Power Supply Amperage Too Low The original monitor PSU (PA-1650-68) was fixed at 19V and 3.32A. mjlorton 257 551 kuvamist 37:51 ToddFun.com: Convert 120v AC to 12v DC using just a light bulb, diode and a capacitor. - Kestus: 33:35. http://www.tomshardware.com/forum/279692-28-amps-power-supply Bottom-line: it's a bad idea to use a lower current rating adapter since it could cause excess heat.

You have, of course, to make sure that the voltage, amps and connector size are compatible. Computer Power Supply Output I get 115 volts from the wall socket. will the powerbank charge the battery? Soovite seda hiljem uuesti vaadata?

Power Supply Amperage Too Low

iPhone and iPad chargers are interchangeable. http://www.instructables.com/id/Use-that-old-PC-Power-Supply-as-a-high-current-%2B3./ If you find that the output voltage is a few volts higher than you expected, then the supply is unregulated, and will drive lower-power equipment at a higher-than-specified voltage, which may Can I Use A Power Supply With Higher Amps Võite seda eelistust all muuta. Can I Use A 12v Power Supply On A 9v By wiring a bunch of 12 volt or 6 volt lamps in a series/parallel configuration it might also be possible to match the 5 volt and 10 ohm (or possibly less)

Feature image by Qurren - GFDL (http://www.gnu.org/copyleft/fdl.html) or CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/), via Wikimedia Commons More Reading: About Jack Busch Based in Pittsburgh, Jack Busch is a groovyPost senior editor, professional technical writer, navigate here If it's stated 5V, you are not in trouble , because you can use the USB cable to charge your phone by the powerbank's port. hehehe you are 100% correct. All of the above are what you would expect to see, based on a simple understanding of polarity, voltage and current. Computer Power Supply Amps

Reply Jason April 30, 2016 at 12:36 am # Hello, I am trying to substitute two 1.5v "D" size batteries for an AC-DC adapter. In this application, however, the byproduct of the reaction and the product are one in the same. This got more frequent within days. http://dotbowl.com/power-supply/power-supply-makes-clicking-noise-when-i-press-power-button.html If I could get one style of adapter that worked on every computer appliance/device (including external hard drives) then I'd be willing to pay a mint for it, and then get

Many times struggling to read what's printed on those plugs. Can I Use A 12v Adapter For 6v Why is omne ablative in catullus 1? Doesn't a case fan already have it's connector in the correct configuration to be used with a computer's PSU?

Only states 9v DC.

So, you don't have any problem to connect your phone to your computer or powerbank. Have you found it doesn't rub off either over time? It is generally preferred to avoid supply of more than 1.2 A current as it will be ineffectual until you want to use high current rated devices with your Pi. Can I Use A Charger With Higher Voltage Made to order, please allow 2 weeks for shipment Model number Continuous Amps Input Voltage Output Watts Weight Dual Voltage?

This computer probably has a power factor correcting (PFC) power supply. Reply mirocromiro November 19, 2016 at 4:12 am # thanks man you saved my life! Worth a try if you're struggling to get your supply up and running.

Correct, a switch-mode power supply will need a load to operate properly.

I use a 10ohm, 25watt power resistor from this contact form I ended up getting an used replacement from an independent computer repair shop for $20.

The device itself is responsible for drawing them. –Andrew Larsson Jun 14 '12 at 16:53 9 To clarify the answer's final statement, "5 amps would be excessive" to buy specifically As a young chick my parents use to feed me watermelon and I loved it so much everyone nick named me ... The reason is that durning this switch over time the computer Power is not switched off. adapter with a polarity of inner ring(+), outer ring(-).

I say 'probably' because no one I have corresponded with at Dell seems to know; however, the Studio XPS 9000 does have a PFC power supply.My computer's power supply is rated Töö käib ... This generally means they can run from 90-240 V AC, and that can be 50 or 60 Hz. If my faucet can fill a bucket in a minute that's its maximum flow, or current.

Warn us in the comments! Even the manufacturer, over the phone, wanted $65 for a new one and 10 days shipping! In addition to the power rating, I have also been learning about whether or not I need a type of UPS with an inverter that produces current in a sine wave How did I end up with this FizzBuzz?

I could then repeat this on my spare power supply to see if it is the same. I'm not sure whether I should use the power cable for the PS2, or try to buy a PS2 one.. . In these kinds of supplies, the output voltage is dictated by the turns ratio of the transformer. Reply YK November 29, 2016 at 10:21 pm # Sean, I like your explanation.

I had no problems during modifications. Minimum Load Some power supplies, generally older switchers, have a minimum load requirement. Reply tami morrow January 10, 2017 at 8:38 pm # i couldnt agree more isnt there a simple chart i can input the info of the ac or dc adapter and Reply Steve Krause June 24, 2013 at 5:25 pm # Yeah….

Reply B. My issue is well everyone in my family, phones shorting out but I don't think its from a power supply being to hi. A regulated power supply will always generate the expected output voltage. Logi sisse Jaga Rohkem Teata Soovite meid sobimatust videost teavitada?

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