The Universal Power Adapter for Mobile Devices (UPAMD), codename IEEE 1823-2015 (before approval P1823), is an IEEE standard for

power supply A power supply is an electrical device that supplies electric power to an electrical load. The main purpose of a power supply is to convert electric current from a source to the correct voltage, current, and frequency to power the load. As a ...

design intended to cater to the power range of (optionally for mobile devices like

laptop computer A laptop, laptop computer, or notebook computer is a small, portable personal computer (PC) with a screen and alphanumeric keyboard. Laptops typically have a clam shell form factor with the screen mounted on the inside of the upper li ...

s. The power supply was required to have an output capacitive energy of less than and an inductive energy at disconnect of less than . The standard defines an AC adapter to power devices requiring from or (extended voltage option) up to A new connector (that does not mate with any previously existing connector) is proposed for a lifetime of about ten years with multiple brands and models. This minimum life of adapter was hoped to reduce

electronic waste Electronic waste or e-waste describes discarded electrical or electronic devices. Used electronics which are destined for refurbishment, reuse, resale, salvage recycling through material recovery, or disposal are also considered e-waste. Inform ...

. A common

direct current Direct current (DC) is one-directional flow of electric charge. An electrochemical cell is a prime example of DC power. Direct current may flow through a conductor such as a wire, but can also flow through semiconductors, insulators, or eve ...

power plug is intended to make life easier by eliminating the confusion regarding what voltage and

current transformer A current transformer (CT) is a type of transformer that is used to reduce or multiply an alternating current (AC). It produces a current in its secondary which is proportional to the current in its primary. Current transformers, along with volt ...

one needs to buy and carry. This can help

mobile device A mobile device (or handheld computer) is a computer small enough to hold and operate in the hand. Mobile devices typically have a flat LCD or OLED screen, a touchscreen interface, and digital or physical buttons. They may also have a physica ...

s, laptops, many consumer electronic devices, office devices like

Ethernet Ethernet () is a family of wired computer networking technologies commonly used in local area networks (LAN), metropolitan area networks (MAN) and wide area networks (WAN). It was commercially introduced in 1980 and first standardized in 1 ...

switches In electrical engineering, a switch is an electrical component that can disconnect or connect the conducting path in an electrical circuit, interrupting the electric current or diverting it from one conductor to another. The most common type of ...

/ hubs, and

wireless router A wireless router is a device that performs the functions of a router and also includes the functions of a wireless access point. It is used to provide access to the Internet or a private computer network. Depending on the manufacturer and mode ...

s to use the same power adapter around the world. This specification defines a communication channel between device and adapter, to negotiate the requirements and supply.

Usage

There seem to be no known examples of commercial deployments of UPAMD in end-user devices. When asked about deployment in 2019, the chair for IEEE 1823 working group wrote the following:

History

The Standards Association of the Institute of Electrical and Electronics Engineers (IEEE) approved the Universal Power Adapter for Mobile Devices working group on June 17, 2010. The project was sponsored by the Microprocessor Standards Committee of the

IEEE Computer Society The Institute of Electrical and Electronics Engineers (IEEE) is a 501(c)(3) professional association for electronic engineering and electrical engineering (and associated disciplines) with its corporate office in New York City and its operation ...

. On 15 May 2015 the standard was published as IEEE Std 1823-2015.

References

External links

IEEE 1823-2015 - IEEE Standard for Universal Power Adapter for Mobile Devices
- IEEE {{DC power delivery standards DC power connectors IEEE standards Power supplies Laptops Battery charging

Usage

History

See also

References

External links