What is a DC 12V power cord?
A DC power cord is a single-ended, ungrounded 12-volt cord used as a replacement for multiple wires in order to convert from an AC power source to standard DC voltage. An advantage of using one cable instead of multiple cables is that they can be laid out in any shape or configuration.
When you have multiple units needing power, however, it is much easier to use a single cable than to try finding the right size and type of connector for each device. The drawback is that one end must be plugged into an AC wall outlet and the other end into a device requiring power.
What uses a 12V DC plug?
A 12V DC socket is a cylindrical receptacle that provides direct current at 12 volts to a device plugged into it. The most commonly known 12V sockets are found in automobiles and were originally provided as part of a system that heated a metal coil in a heat-proof holder to light cigars and cigarettes. Cigarette lighters are still provided in automobiles as optional accessories, but the 12V sockets are still installed in cars as a power source.
What is a DC cord used for?
A DC power cord is an electrical cable used to connect two DC devices or a DC device and a DC power source. DC power cables are also known as DC power cords. There are many types of DC products. Examples include DC power supply cords, DC power extension cords, and DC power adapter cords.
A DC power supply cord is used to connect a DC power supply to a device that uses DC power. A standard DC power cable is available in different lengths and can have either two or three prongs.
Are all DC 12V adapters the same?
The quality of a 12VDC power supply is determined by the power factor, input voltage range, output current, and ripple/noise ratings. Some 12VDC power supplies are created from an existing standard-grade universal AC to DC adapter. They may have a label on them indicating they can be used with a wide range of equipment. They may be labeled as “all TVs” or “all computers” when in fact they are not suitable for your needs.
How does an AC-DC power supply work?
An AC-DC power supply works on the same basic principle as why your mobile phone or game console will work—a transformer, rectifier, and filter separate the original ac source voltage into an unregulated voltage that is then delivered to a device.
The job of the transformer is to increase and decrease the voltage depending on what your device needs. The job of a filter is to remove all electromagnetic signals from the low frequency and high frequencies of power waves so that once it reaches your device’s channels it will work as expected.
How do I know if a plug is AC or DC?
Electricity travels in waves. This is why you might be able to turn on a light switch at home, but not at a neighbor's house or an office building next door. The same wave motion of AC power helps this power source travel farther very efficiently because power plants can easily generate large amounts of AC power and deliver it via power lines, which then feed to transformers to step down the voltage until it reaches homes and businesses.
When changing the voltage, DC power does not increase or decrease as easily, and therefore cannot travel long distances efficiently.