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Can i use a power supply with higher amps. The 'extra' power supply is 19.

  • Can i use a power supply with higher amps. 5A to 12v 2A? Mar 19, 2012 · The output on the first laptop's power supply is 15. Aug 15, 2020 · Two identical linear regulated power supplies may be paralleled, should there be a facility to do so. Below is an example of a centralized power supply, this type of power supply can be used to connect multiple cameras according to their maximum current. 5A ~22VAC" which is a higher current than the highest rating on the switch. Ohm's law tells us the relation between current, voltage, and resistance: I = V / R . If amperage is a bit lower, let say about 10%, it will charge the battery but if you want to listening music during charging with lower amperage you do not have Oct 18, 2020 · Into the 4-ohm load however 120W would be "5. Nov 14, 2012 · My Dell D510 is OK with another Dell power supply. 1 amps to supply the required power. Jan 9, 2021 · Energy is the product of power and time. 5v with 4. Voltage is pushed to the device by the power supply, so must match. You should also make sure that the input specification for the power supply — what it expects from your wall socket — is also correct. 1 kΩ resistors onto CC pins, get 5 V, and talk the power supply into giving you a higher voltage from there. Just make sure the voltage matches. 5 volts DC and the MacBook Air will be alright, perfectly fine. Whether you’re a homeowner seeking to optimize your home appliances or a business owner looking to enhance your operational efficiency, this article aims to provide valuable insights into the Mar 22, 2021 · Figure \(\PageIndex{3}\): High-power amplifier using LM3886. Current is pulled from the supply by the device, so the device only draws the current that it requires, regardless of the maximum current the power supply is able to supply. Piece of cake for an SMPS (Switch-Mode Power Supply), aka switcher. However, it can be safe under certain conditions: - The current on the 12V rail is more than what the GPU and CPU combined require. 5V \$\times\$ 1. what he said, but a good practice for all should be to use a nice old school low watt/amp charger for bedtime overnight charging as it's still best for long term battery life and keep high power ones for quick charging when needed. It, too, will go into current . 1A, it should draw about 4. The original fan is 12v, 0. Minimum spec or standard spec provide is 19. Power supplies go by a lot of different names, you can call them Wall Warts, AC Adapters, Plugpacks, or AC/DC Converters, whatever takes your fancy. However, if that first power supply has foldback current limit, it will effectively drop out of circuit and the other power supply will attempt to supply all of the current. Sep 29, 2023 · While the appeal of a universal power supply is undeniable, the fact of the matter is you need the proper power supply size for your unique use case. Feb 11, 2024 · It can also damage the device’s internal circuitry. Feb 18, 2022 · Using a higher wattage power supply. Since, I'm only supplying a single data point. 10,000 mA (10 amps): Cardiac arrest, severe burns, and death. Apr 20, 2019 · The amperage rating on your power supply simply means that the supply can put out up to 2 amps, so as long as the voltage matches (12 volts) you could safely use a higher amp power supply for your device. The resistors remain connected during communications – in fact, the Higher current (A) is okay because the device won’t use as much, but higher voltage (V) is going to “fry” it. e. My circuit breakers are like 15 amps. Original was 19. However, I see no problem with putting a 2. 40 amps. Sep 18, 2024 · There are 2 different scenarios-higher wattage charger and a lower wattage one. I wouldn't use anything under 24 amps here. A higher amp charger might charge your laptop faster and will also keep it refurnished if you are using it while charging which most people do. For example, if a speaker is rated at 200 watts, we’d use a 400 watt amp. While using a higher amperage power supply is generally safe, it’s essential to avoid certain misconceptions: Voltage Is Not Interchangeable: Unlike amperage, the replacement voltage must match exactly. The device will only draw as much current (Amps Nov 30, 2022 · Often the last consideration in a maker project, the DC power supply is the heartbeat of many electrical projects and the correct selection requires some consideration. 2. Nov 23, 2017 · The advantage of using power adaptors rated for higher currents than a pedal needs is that we can power a number of different pedals at the same time (e. Does the replacement fan need to be the exact same amperage or can it be higher or lower? I know that you need to match volts/amps pretty closely with laptop fans but I’m wondering if amps would matter that much with the NAS as long as it’s a 12v fan. As a very vague rule of thumb, we normally recommend around twice as much amplifier power as speaker’s power rating. 5 Amp) without a problem. This is far more current than my mains power can provide. 0 A. The amperage rating on your power supply simply means that the supply can put out up to 2 amps, so as long as the voltage matches (12 volts) you could safely use a higher amp power supply for your device. The only 40 pin, 1. * Use, let's say, a 16. Amperage is pulled by the device from the power supply. Given this, higher voltages may cause the battery to die prematurely. Dec 10, 2019 · The power supply doesn't have a "higher current output"; it has an output which is CAPABLE of delivering a higher current (before it goes into shutdown, or current limiting mode, or simply overheats and catches fire). 50 to 150 mA: Extreme pain, possible severe muscle reactions, possible respiratory arrest, and even possible death. How many amps does a power supply take? I’ve sourced a power supply that takes 240 AC mains supply and provides 5v @ 8 Amps. The supply might be a little less efficient, but no harm is done. In practical terms, that means the amperage rating of a power supply or charger must match or exceed that required by the device it is connected to. My AC power supply voltage is 25% lower than the design input to the charging circuit. 5 amp ones are good enough for todays phones as someone mentioned low The short answer is yes, it could be dangerous - but probably only to the power supply, not your equipment. voltage regulators). Your mileage may vary. Jun 13, 2015 · The power supply will normally supply the rated voltage up to the rated current. So excess amperage capability by the power supply is a good thing, not a problem. 5A by themselves with nothing plugged in. I would use the higher-capacity supply, and hope it can handle the inrush current. 6 V at 8. Oct 25, 2017 · One of the components will be injectors which use around 3 - 4 amps. 1,000 mA to 4,300 mA: Heart ceases pumping; nerve damage and death likely. However, the laptop adapter's voltage is a full volt above the specified 18 V; this will cause more current to flow into your device, since the voltage has been increased. 5V 9. Jun 7, 2019 · I have not been able to find a Black and Decker replacement power supply. Jun 14, 2012 · Just because a power supply is rated (ie. 27mm ribbon cable I can find for a reasonable price is rated at 28awg. The same benefits apply to laptops as well. Using a higher wattage charger is perfectly safe. Mar 27, 2016 · The power supply needs to be able to provide an output amps at least the output amps of the old one. Do not use a power supply with a lower current rating or power rating than the original. Dec 12, 2010 · That's more than twice the power you actually need, and almost as much as one wall wart can deliver. One common question that arises when selecting a power supply is whether using one with higher amps is safe and appropriate for a specific device. With so many effects pedals running less than 100 mA, there's usually no need to have a bunch of high mA outputs on a single power supply or guitar rig. This is a very high current device capable of producing 30 amps and can run with power supplies as high as \(\pm\)50 volts. Unregulated power supplies, especially "wall warts", tend to have volts going high when amps taken is far below what they are rated for. You should be able to find an adjustable voltage supply, although 2. May 23, 2012 · You can use a power supply with a higher rating on current (amps) or total power (current * voltage, so directly related anyway). Higher amps on the adapter is OK, higher volts is not. There are linear regulated power supply models which have the facility to interlink the regulated drive fed to the driver transistors in two identical supplies. Prolonged use of an underpowered supply can also degrade the internal components of the device, leading to expensive repairs or replacements. All is good. 6 amps and no more than 8v if you want to avoid damaging the battery. Jan 8, 2008 · than the amp rating of the power supply. Some take 0. May 23, 2020 · In a nutshell, the Amps rating on a power supply, charger or adapter explains the maximum amount of current that it can safely provide in an hour. 5v with 3. Each injector actually uses two of the pins to help with the load. capable of) a higher current does not mean that this is what the 'sink' (ie. ⚛️ The voltage and polarity of the power supply must match. Jan 16, 2013 · The adapter can say that it can power up to 1,000 watts at a rate of 14. You can safely use a power supply rated for higher output wattage as long as the output voltage matches and the polarity of the connector is correct. 23A, Meaning higher voltage will damage the component inside especially on IC. Sep 8, 2017 · According to this fellow, Voltage must match between monitor and power supply, and Amperage on the power supply can be higher than is required. Using a higher wattage power supplyYou can safely use a powe This means I should be able to draw roughly 41 amps (12V*41A =~ 500). May 27, 2013 · Yes, it is absolutely safe to charge a device with a charger that has more current capacity than needed. by using of daisy chain adaptor). The adapter attempts to supply a constant voltage, the connected device will draw whatever current that it r Dec 5, 2018 · Tip polarity can usually be seen as a symbol like this: In this picture, it indicates that the tip is negative. To use the Raspberry Pi 5 at its fullest you will need a USB-PD power supply that can provide and negotiate 5A at 5V. For instance, if you are using a supply that can deliver 1 amp maximum and you change it to a supply that can deliver (say) 10 amps maximum then for sure, it will still adequately power your "device" but, this might now become a fire hazard. Additionally, using a lower amp power supply can lead to erratic performance. Sep 29, 2023 · The Raspberry Pi 5 will not negotiate higher voltages (such as 9v or 12v) even though the power supply can provide it to other devices. You can use a power supply with a higher amp rating than your laptop requires. Still further along is the Apex PA05. Devices draw as much current as they need; the current shown on a power supply is a maximum. And the more current an adaptor can deliver, the more pedals you can power! How many? Well, that depends on the pedals and the adaptor… Jun 4, 1997 · The idea is to always provide clean power to the speakers, by using a large enough power amp. If you have too high a current, the system simply won't draw as much power as the supply can provide. It is now just a matter of finding a listing online that is convenient for you. Well, also the supply side is at a different voltage. Good luck :) Sep 3, 2022 · The RPI can see up to 1 Amp draw, or higher. Below are my three generalised golden rules for selecting a power supply for Jun 16, 2015 · Without knowing the specs of the laptop in question, the answer is maybe. that said i'm not sure if the really old . The 'extra' power supply is 19. - It is a quality PSU, with at least an 80plus Bronze rating. Jan 10, 2021 · 4 Answers. The Mac will only draw the first 45 watts off the adapter, not needing to use the rest that the adapter can supply. Reprinted courtesy of Texas Instruments. 5 is a little more than 5 and 22 is a lot less than 125, but hardly seems like a reliable formula. If the power source has more than the required current, it should work quite nicely, It won't stress either the power source or the device being powered. A difference in amperage or wattage isn’t necessarily an issue. Although this doesn't apply in your case, for laptops that charge using USB Power Delivery over a USB-C port, it's even simpler: the replacement adapter need only have an output wattage at least that of the adapter it replaces or what is specified by the manufacturer. Previous Raspberry Pi power supplies do not supply this. 5A power supply is not enough to work like your old one. Just because a 12v power supply can supply 10 amps, doesn't mean that the power supply will force 10 amps through the circuit. It supplies power at 120 volts AC. Only voltage must be the same. Amps and watts have some flexibility. Lets say you have a 500mA load and you attempt to use the 250mA adapter, then you will either overheat the 250mA adapter, or in the worst case, the transformer core in the adapter will saturate, cause large pulses of current to be drawn during the peaks of the mains cycle. Higher voltage can definitely cause damage. Feb 28, 2017 · It is not a good idea to use a lower than recommended power supply. This is because the Laptop is designed in such a way as there is the maximum power that can be drawn by the system. thanks! Jan 12, 2024 · By understanding the implications of using a higher amp power cord, you can make informed decisions about the best power supply for your specific needs. This overheating can damage both the power supply and the device, and in extreme cases, it can pose a fire hazard. A higher wattage charger can supply this power easily and hence you won’t run into any issues. g. So you have a system that takes 6. 5 Amps normally, but can jump to 9 Amps ⚜️ Chargers and power supplies come with different Voltage and Amperage ratings. Depending on the laptop's tolerance for voltage variance, 19V is likely within the safe zone (plus or minus 5%, a typical tolerance, gives you a "safe" range between 17. Conclusion. But why is this so important? What happens if you use a higher voltage power supply? We’ll look at the four most common outcomes of using high voltage power supplies incorrectly below. Any amperage of charger rated above what's required for your device is safe to use with your device, providing the PSU voltage is the same as the input voltage or within a tolerance of 1 volt. One wall wart can deliver 12W and you need 3. But if you can't find the same, then choosing the right one is important. So, 500W / 120V = 4. If you have too low a current, you will either burn out the supply, trip a breaker or fuse in the supply, or the equipment will not work or fail unpredictably at high load. The number of Amps supplied by a power supply is essentially irrelevant when compared to the Amps flowing within an LED strip. Aug 12, 2021 · What happens if you use a higher-watt power supply? In general, if you use a higher wattage power supply in a computer that’s otherwise working properly, nothing will happen and the computer will operate normally. Jan 9, 2023 · Put your 5. It’s possible that the power supply will be quieter or noisier than what it’s replacing, but that rarely has anything to do Power supplies are an essential component for any electronic device, providing the necessary electrical current to maintain operation. Sep 3, 2017 · The answer is yes, you can use similar charger, with 10V (+/- 0,5V will be ok, except newest iPhone and similar devices) but amperage must be higher if you want to have full charging. I assume the second laptop's power supply can not be used on the first, because it can't supply enough power to the laptop. Always check the voltage requirements of your device before using a different charger. Nov 5, 2022 · You could damage the power supply, and the failing power supply could cause a wide range of issues with your laptop’s components. 5 volts DC of any wattage. It depend on you brand of laptop. expensive). Can you use a 12v 1. If you don't have the exact one, use a higher one. The no-load measured output is AC 7V. If the charger delivers more amps or watts than your computer needs, you can still use it since your computer won’t draw more power than it needs. Conversely, lower voltage is unlikely to cause damage since the device simply won’t have enough power, but lower current can cause trouble because the power supply cannot provide enough. Polarity Matters: Ensure the polarity of the power supply matches that of the device. 5 a charger on a 12v 2A device? Re: Can i change external HDD’s power adapter 12v 1. 6 Amps is relatively high current as such things go (i. In terms of safety, the only issues is that of current flow is enough to cause a significant overtemperature in the connections/wires that could cause a fire. 3A = 4. In the specific case, some types of motors have an initial current draw that is much higher than their rated current. You will also be able to add a line Feb 14, 2015 · If it has linear current limit, its' voltage collapses down to the point where the other power supply begins to supply current. The connection is extremely simple because there are labels on each of the connectors, the power supply must be connected to an electrical outlet using the hot and neutral connectors, and the Aug 13, 2021 · Is high amperage dangerous? 6 to 30 mA: Painful shock, loss of muscle control. Raspi) will take. I have a power supply with the unit label showing output AC 6V 300mA. Can I use a high amp power supply for my laptop? The answer is, it depends. 26awg is apparently recommended. You should replace it with a power supply rated at or above 2. 3 amp output. 6 V at 5 A. If the power supply stored energy (like a battery backup system,) then the time on the input and the output aren't the same anymore and you have Jan 29, 2016 · Not completely. (current = voltage / resistance) Oct 9, 2019 · Voltage is pushed to the device from the power supply, so an excessive voltage can easily damage the device. Jun 29, 2019 · Note that this is an example where the voltage is the same, but the amperage is higher. Take pictures of your laptop on fire if it doesn't work out, and let us know. 6 amp output. In the original set-up, your "device" may not have needed a fuse when working with the 1 amp (maximum Dec 20, 2023 · As the article states, you do want to match voltages between the power supply and device, but you can us a power supply with more amps than needed. Jun 5, 2023 · No, amps do not have to match, but the power supply or charger must be able to supply enough amps as required by the device being powered or charged. 425V). Assuming the higher-current-at-lower-power thing is true I'm tempted to think 5. It is, generally, not okay to supply a component with more current than its rated for. Jan 8, 2017 · Most of the technical power supply give the minimum spec to its product. The following list gives you some approximate mA ratings for a wide range of pedals. I would worry a little bit if the power supply is an unregulated wallwart and the May 2, 2019 · you can use the new power adapter. Any device will only draw as much current as it needs, so long as its power source can supply it. If the power supply is not rated for enough amps it will overheat and burn out components or it will trip the overload protection if it has one to protect itself. That's only 40% of the available power, so we only need a 40% efficient conversion. Apr 28, 2024 · An op-amp cannot supply more current than is applied to its power pins. In conclusion, it is perfectly fine to use a higher amperage Even though a typical wall outlet is able to provide 15 amps, you can plug in a 60W bulb (0. 575V and 19. Dec 28, 2016 · Hey guys, I just realized yesterday that I need to order a replacement fan for a NAS. This is different to voltage, where excess voltage can indeed damage a circuit that doesn't have sufficient protection (eg. If replacing the power supply direct from the manufacturer is too expensive, try an electronics shop like RadioShack. That is ok because when using PSUs with a higher amp rating the monitor only draws the amount of current it needs. 5 amp load on a 3 amp supply. The output on the second laptop's power supply is 15. The original power supply label shows output 8Vac 250 mA. Sep 9, 2020 · Or, since the output rating is the same, I shouldn't have any concerns with the slightly higher input Amp rating other than the draw on my electrical circuit breaker? Is the following statement universally true if all other specs are equal? "The input rating on a power supply is what it pulls when providing the maximum output rating. So, unless you already have a power supply that can provide 1000s of amps, an op-amp (or many) won't help you. I' Feb 14, 2010 · If the power source hasn't the ability to supply the current required, the power supply output Voltage will drop, the power supply may well overheat and burn out. The RPI can see up to 1 Amp draw, or higher. The exact number of high mA rated outputs will depend on the power supply in question. Clearly the voltages are the same, but the currents are different. It's the voltage that's fixed. 55W. Apr 10, 2022 · Other than that, you can use a higher amp charger on your laptop without any problem. Since the time is the same for both the input side and the output side, the time cancels out and you can say that power in has to be greater than the power out. Mixing tip polarities is just as likely to fry your router as using too high a voltage. Power supply usage is to charge battery and support voltage to the laptop. inxs sgly qtkelu equv uenf znymiet jugm lop ufy jsl