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2. Battery charger - Wikipedia

   en.wikipedia.org/wiki/Battery_charger

   A mobile phone plugged in to an AC adapter for charging. A battery charger, recharger, or simply charger, [1][2] is a device that stores energy in an electric battery by running current through it. The charging protocol—how much voltage, current, for how long and what to do when charging is complete—depends on the size and type of the ...

3. Universal charger - Wikipedia

   en.wikipedia.org/wiki/Universal_charger

   Universal charger. Universal charger or common charger refers to various projects to standardize the connectors of power supplies, particularly for battery-powered devices. Since the publication of the USB Power Delivery standard in 2012, and the USB-C connector in 2014, USB-C has become a widespread standard for charging mobile phones.

4. AC adapter - Wikipedia

   en.wikipedia.org/wiki/AC_adapter

   AC adapter. A "wall-wart" type AC adapter for a household game console. The output has a barrel connector. "Power brick" in-line configuration, with detachable AC cord and NEMA 1-15 plug. An AC adapter or AC/DC adapter (also called a wall charger, power adapter, power brick, or wall wart) [1] is a type of external power supply, often enclosed ...

5. USB hardware - Wikipedia

   en.wikipedia.org/wiki/USB_hardware

   The USB standard included power supply to peripheral devices; modern versions of the standard extend the power delivery limits for battery charging and devices requiring up to 240 watts. USB has been selected as the standard charging format for many mobile phones, reducing the proliferation of proprietary chargers.

6. Switched-mode power supply - Wikipedia

   en.wikipedia.org/wiki/Switched-mode_power_supply

   A switched-mode power supply (SMPS), also called switching-mode power supply, switch-mode power supply, switched power supply, or simply switcher, is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a DC or AC source (often mains ...

7. DC connector - Wikipedia

   en.wikipedia.org/wiki/DC_connector

   A DC connector (or DC plug, for one common type) is an electrical connector that supplies direct current (DC) power. Compared to domestic AC power plugs and sockets, DC connectors have many more standard types that are not interchangeable. The dimensions and arrangement of DC connectors can be chosen to prevent accidental interconnection of ...

8. Ferrite bead - Wikipedia

   en.wikipedia.org/wiki/Ferrite_bead

   Ferrite bead. A ferrite bead at the end of a Mini USB cable. A ferrite bead – also called a ferrite block, ferrite core, ferrite ring, EMI filter, or ferrite choke[1][2] – is a type of choke that suppresses high-frequency electronic noise in electronic circuits. Ferrite beads employ high-frequency current dissipation in a ferrite ceramic to ...

9. Multimeter - Wikipedia

   en.wikipedia.org/wiki/Multimeter

   Multimeter. Analog multimeter. Digital multimeter. A multimeter (also known as a volt-ohm-milliammeter, volt-ohmmeter or VOM) [1] is a measuring instrument that can measure multiple electrical properties. [2][3] A typical multimeter can measure voltage, resistance, and current, [4] in which case can be used as a voltmeter, ohmmeter, and ammeter.