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The AC/ DC converter then converts the power to the DC that the computer uses, as well as a second power cord that plugs into the computer.Įach AC/ DC adapter has a specific power rating, measured in volts or watts, that it can handle and output to electronics. As shown, the AC adapter consists of a central unit that draws power from an AC outlet. AC to DC adapters help reduce the size of laptops by alleviating the need for standard-sized power supplies. What is AC/ DC Adapter?Īlso known as an AC/ DC adapter, AC converter, or charger, an AC adapter is an external power source for devices that run on batteries or have no other power source. AC to DC power adapters are widely used in security cameras, set-top boxes, routers, light bars, massagers and other equipment.ĪC/ DC adapter rated voltage are optional, good flexibility, fast charging speed, environmental protection, non-toxicity and durability, which ensures that you will find the optimal product for your needs. AC/ DC adapter are used both with equipment with no other source of power and with battery-powered equipment, where the supply, when plugged in, can sometimes charge the battery in addition to powering the equipment. 5V/ 6V/ 7.5V/ 9V/ 12V/ 15V/24V AC to DC wall adapter and 5V/ 9V/ 12V/ 15V/ 24V/ 36V/ 48V AC to DC desktop adapter are provides. Low price ATO AC to DC converter for sale. When the AC adapter supplies power to a battery-powered device, it is also accurate to describe it as a charger. Typically, the output voltage of an AC/DC adapter will be quoted alongside its rated amperage - for example, 12V 2A.An AC/ DC adapter is an external power supply that converts alternating current (AC) from a wall/desk outlet to a direct current (DC) needed by an electronic device. The output voltage is the lower level of charge then passed through to the device by the plug-in power supply adapter following conversion to direct current (DC). For example, 240V 50Hz refers to an input voltage of 240V alternating at 50 cycles per second. the number of times per second the current changes direction. You may also see the Hertz (Hz) frequency rating of the input voltage listed - i.e. An adapter with a quoted input level of 100-240V will be compatible with both standards.
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In the UK and the EU, 230V is the standard - much higher than in the US, where the standard is 120V. This is standardised and varies across different regions. The input voltage of an AC/DC adapter indicates the level of power supplied to the adapter by the mains. The latter is also known as star connectors or X connectors. These universal power supply adapters are compatible with multiple voltages within a range - for example, 100-240 Volts - and some even feature plugs of different sizes. However, some models are designed to work as replacement chargers for a wide range of devices. Most AC/DC adapters are not universal and can only be used to power compatible devices. The UK standard power plug is different from that used in Europe, for example, and different again from the standard US plug. They also feature a variety of plugs for use with different socket designs. Like most electrical devices, AC adapters are built for compatibility with different levels of power, typically expressed in Volts. A power cord then feeds this power from the adapter to the device to charge its battery or allow it to run. This draws AC power from the mains and converts it into DC at the voltage required by the device. DC is used to transmit electricity along electrical pylons, and it also powers telecommunications equipment, vehicle batteries, and electrical devices with rechargeable batteries.ĪC adapters typically feature a boxy central unit containing power-switching circuitry. By contrast, direct current does not change direction. This is the format used to deliver mains electricity. Alternating current repeatedly changes direction, alternating between the positive and negative poles within a circuit. So, what is AC power and how is it different from DC power? AC and DC are electrical formats.