power adapter. A power supply for electronic devices. Also called an "AC adapter" or "charger," power adapters plug into a wall outlet and convert AC to a single DC voltage. Computers use multiple DC voltages, and the power adapter is the external part of the power supply for a laptop..
Similarly, how does a power adapter work?
Also referred to as a power supply or power adaptor, an AC adaptor plugs into a standard electrical outlet and converts the AC electrical current from the wall outlet to the specifications needed by the electrical device that's plugged in.
Additionally, can I use a different power adapter? No. If you are going to use another adapter use one with the same voltage and at least the same amperage. If you use one with significantly more voltage (and 12v is a full third more than 9v) then you might burn out your device.
Keeping this in consideration, is a power adapter the same as a Charger?
In general, you can say both are used as a charger. So, basically power adapter can be used as a charger but the charger can't be used as power adapter. As, you might have seen in the case of a Notebook Computer or a laptop.
What is an external power adapter?
An AC adapter, AC/DC adapter, or AC/DC converter is a type of external power supply, often enclosed in a case similar to an AC plug. AC adapters are used with electrical devices that require power but do not contain internal components to derive the required voltage and power from mains power.
Related Question Answers
What is the function of an adapter?
An adapter is a physical device that allows one hardware or electronic interface to be adapted (accommodated without loss of function) to another hardware or electronic interface. In a computer, an adapter is often built into a card that can be inserted into a slot on the computer's motherboard.Is an AC adapter the same thing as a Charger?
There is no difference between an AC Adapter, a power supply and a charger in reference to a laptop computer: all three functions are handled by the device's external power device. With laptops, all three names refer to the same device that's commonly referred to as a "power brick."Do phone chargers convert AC to DC?
At their simplest, there are four components involved in a phone charger: a transformer to step the mains down to a working output voltage, a rectifier to convert the AC to DC, some form of capacitive filter to smooth the rectifier's output and a voltage regulator to keep the voltage constant.How do I check the polarity of my AC adapter?
Reading the polarity of the connector The most common is center positive (+) connectors. There is also the less popular center negative (-) connector. The adapter and the device must match so always double check the symbol on the AC adapter and the device show the same polarity.How does a 12v adapter work?
A 12V DC device needs a 12V DC adapter. Amperage is the amount of power your device uses. The adapter you order has to be able to supply AT LEAST the amount of Amps your device draws. If your device states it is 12V 3A, a 3A adapter can handle that load, but so can a 4A and 5A.What are the 3 types of power supply?
There are three major kinds of power supplies: unregulated (also called brute force), linear regulated, and switching.What is inside a power supply?
A power supply unit (or PSU) converts mains AC to low-voltage regulated DC power for the internal components of a computer. They also provide a signal to the motherboard to indicate when the DC voltages are in spec, so that the computer is able to safely power up and boot.What is a universal power adapter?
The Universal Power Adapter for Mobile Devices (UPAMD), codename IEEE 1823-2015 (before approval P1823), is an IEEE standard for power supply design intended to cater to the power range of 10–130 W (optionally 240 W) for mobile devices like laptop computers.Is a AC adapter a Charger?
Alternatively known as an AC/DC adapter, AC converter or charger, an AC adapter is an external power supply used with devices that run on batteries or have no other power source. AC adapters help reduce the size of a laptop computer by alleviating the need for a standard sized power supply.What is a Type C charger?
USB Type-C is no guarantee that you'll see the fastest available data speeds. As well as delivering data, USB Type-C is designed to power all of our gadgets and not just the portable ones. The connector is rated to deliver and receive up to 100W of power, making it suitable to charge laptops and more.Can I charge a laptop without an AC adapter?
Is it possible to charge a laptop without it's charger? Yes, and the easiest way to do it is with a universal adapter. Remember to always check the voltage, no matter the charging solution. If that doesn't suit you, charge your laptop from a car battery or use an external battery charger.How is AC converted to DC?
A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The process is known as rectification, since it "straightens" the direction of current.Do power adapters use electricity when plugged in?
A spokesperson for the Energy Saving Trust adds: Any charger that is plugged in at the wall, and not switched off at the socket, will still use some electricity, even if it's not plugged into the device it is meant to charge. One phone charger on its own will only draw a tiny amount of power.Which wire is positive on an AC adapter?
The wire with the white stripe should be the positive wire with the negative wire being the one that's all black.Do laptops have power supply?
A laptop doesn't have a power supply inside the case that converts power. Instead, it has an AC adapter that works same as power supply does and it provides the power to the laptop.What is the difference between an AC adapter and an AC DC adapter?
A DC adaptor differs from an AC adaptor in that the DC adaptor converts AC electricity into DC electricity. For example, a 12 V DC adaptor sold in the United States will convert 120 V AC at 60 Hz into 12 V DC. Like its AC counterpart, a DC adaptor is also rated for maximum power output in watts.Will any AC adapter work?
As long as the voltage is the same on the adapter and on the device (also, I have 9V DC and 9V AC adapters, do not mix these up) and be sure the current required is less than the amount that the adapter can source otherwise you risk overloading the power supply.What happens if I use the wrong voltage adapter?
Voltage too high – If the adapter has a higher voltage, but the current is the same, then the device will likely shut itself off when it detects an overvoltage. If it doesn't, then it may run hotter than normal, which can shorten the life of the device or cause immediate damage.Will too much amperage hurt a device?
The amperage rating is the maximum amount of power it can supply. If for some reason your replacement power supply has a lower-than-required maximum amperage rating, you may end up with a burnt out or overheating power supply, and the device itself may not function. 
