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Wall mount power supplies can be either AC or DC. They come in a range of configurations, depending on the scenario that they’re designed for.
Regulated – Regulated wall mount power supplies feature voltage regulators that ensure the output voltage remains consistent, never deviating from the rated value of power supply.
Unregulated – Unregulated wall mount power supplies differ in that their output voltage will decrease as the output current increases and vice versa. This means that the power supply must be matched as closely as possible to the voltage and current requirements of the device in question.
Linear – Linear wall mount power supplies convert high voltage AC into low voltage, this is then converted into DC voltage. Whilst these tend to have low efficiency, they are also more reliable and faster than switching mode power supplies.
Switching mode power supplies – Wall mount switching mode power supplies convert the input signal into DC before stepping down or up the voltage to the required level. These power supplies have high efficiency and are less bulky than their linear counterparts.
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Depending on its configuration, a wall mount power supply will typically consist of a transformer, a rectifier, smoothing, a regulator and load. The input transformer steps down the AC power, a rectifier circuit converts the AC components present into DC component. The signal is then smoothed out by a filtering circuit. A regulator controls the voltage to the desired level, before leading to the load which uses the pure DC output from the regulated output.
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Wall mount power supplies are used in a wide range of industries and applications. They can be designed for use with a full range of input voltages and can output to a similarly wide range of wattages. Linear wall mount power supplies are typically used in audio frequency applications due to their immunity to RFI. Meanwhile, wall mount switch mode power supplies are used in phone chargers and DC motors.
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In order to choose the right wall mount power supply for your requirements, you need to first find out where your device needs AC or DC. You’ll usually find the power requirement on the device itself, look for the voltage requirements so that you can ensure you are providing the correct amount of power. Too much or too little power may lead to your device being damaged.
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Basically, if it's just a cable (no power adapter) and it physically fits your computer, it'll be just fine. Desktop computers (and many monitors) all use the same connector (IEC). Of course, different plugs are used in different countries, but electrically they are all the same.
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It's tempting to buy just any power supply to run your PC, but that's not a wise choice. A power supply that doesn't provide reliable or clean power can cause any number of problems, including instability that can be hard to pin down.
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AC adapter, also called a power adapter or laptop charger, is used to provide sufficient power to operate the laptop for extended periods and to recharge the laptop battery.
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Yes, they are likely interchangeable even though voltage is not the same. This is because the voltage difference is within specs, and I am GUESSING you could go even higher or lower in voltage.<o:p>
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The right AC adapter for your device is one with matching electrical ratings. The device's input voltage and current must match the adapter's output voltage and current. Check the device's product label or user manual to see its rated voltage and current.<o:p>
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The device could power on, and just draw more current from the adapter than it's designed for. This could cause the adapter to overheat or fail. Or, the device may power on, but the adapter may not be able to keep up, causing the voltage to drop (see voltage too low above).<o:p>
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AC adapter issues can occur due to a faulty AC adapter, faulty power cable, damage to the power or AC adapter cable , and so on.<o:p>
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Power adapters can cost hundreds of dollars to replace, but they can often be repaired for free if you already have the necessary materials. The same thing can happen to the plug on any kind of power adapter, but it happens most frequently with notebook computer power supplies, especially ones with coaxial cords.<o:p>
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It's a component that's easy to overlook, but the PSU is the beating heart of your computer. Make sure you look after it from time to time.
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These are the six signs you should look out for.
1. Advanced Age. ...
2. BSOD. ...
3. Crackling, Static, and Other Noises. ...
4. Processor or GPU Issues. ...
5. Power Fluctuations. ...
6. Physical Damage.
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How to: Test a PSU (Power Supply Unit)
1. Shut off your PSU.
2. Unplug all cables from the PSU except for the main AC cable and the 24-pin cable.
3. Locate pin 16 and pin 17 on your 24-pin cable. ...
4. Bend your paper clip so the ends can be inserted into pin 16 and pin 17. ...
5. Turn on the PSU.
6. See if the PSU fan turns.
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USB-C is the new standard for connecting devices to computers and other devices. USB-C ports are smaller and can be found on many new devices. They are also reversible, meaning you can plug it in either way. Browse the top-ranked list of USB-C power adapters below along with associated reviews and opinions.
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USB Power Delivery, or USB PD, is a charging protocol that uses high speed USB-C connecters and cables. Smartphones, tablets, and laptops that are Power Delivery-enabled allow safe, faster charging and more power for larger devices, without the need of a separate power supply.
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The Apple 18W USB‑C Power Adapter offers fast, efficient charging at home, in the office, or on the go. While the power adapter is compatible with any USB‑C-enabled device, Apple recommends pairing it with the 11-inch iPad Pro and 12. 9-inch iPad Pro (3rd generation) for optimal charging performance.
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The Apple 20W USB‑C Power Adapter offers fast, efficient charging at home, in the office, or on the go. Pair it with iPhone 8 or later for fast charging — 50 percent battery in around 35 minutes.¹ Or pair it with the iPad Pro and iPad Air for
optimal charging performance.
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Assuming the iPhone 12 has a similar battery size as iPhone 11 and adopts the same fast charging technology, the 20W fast charger will be able to charge up to 50% in 30 minutes, and up to 100% in 2 hours and 8 minutes or so.
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Will any port work with any charger? USB-C is a universal charging standard. That means that, technically, it doesn't matter what USB-C charger you use — it should be able to power up a laptop with a USB-C charging port and power bank.
