Power supply
A power supply is an electronic device that supplies electric energy to an electrical load. The primary function of a power supply is to convert one form of electrical energy to another and, as a resu...
Power supply - Wikipedia
Potato battery new and improved Video Reuters
A potato battery can light up a room for over a month.
New Battery Technologies Take On Lithium-Ion
Lithium-ion batteries remain the technology-of-choice for today’s crop of electric cars, but challengers are revving up to try to upset the current order. An article in Chemical & Engineering News (C&...
Tesla launches Tesla Energy line of batteries for homes, businesses and utilities
Tesla CEO Elon Musk launched a line of batteries for homes, businesses and utilities in a bid to help speed the spread of renewable energy.
The latest disruptive space technology is a battery-powered rocket engine
Rocket Lab, a US and New Zealand-based defense research company, has exploited the increasing power packed by small batteries to develop a new rocket it’s calling the Electron. It says it will cost $4...
Battery (electricity)
History of Electromagnetism.
Tesla coil
15 FOOT TALL TESLA COIL WITH MAX. SPARKS OF 26 FEET. RUNS UP TO 55000 WATTS IN NEWCASTLE OKLAHOMA.
Battery (electricity)
An electric battery is a device consisting of one or more electrochemical cells that convert stored chemical energy into electrical energy. Each cell contains a positive terminal, or cathode, and a ne...
Battery (electricity) - Wikipedia
AC/DC (electricity)
In the War of Currents era (sometimes, War of the Currents or Battle of Currents) in the late 1880s, George Westinghouse and Thomas Edison became adversaries due to Edison's promotion of direct curren...
AC/DC (electricity) - Wikipedia
Switched-mode power supply
A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical pow...
Switched-mode power supply - Wikipedia
Uninterruptible power supply
An uninterruptible power supply, also uninterruptible power source, UPS or battery/flywheel backup, is an electrical apparatus that provides emergency power to a load when the input power source, typi...
Uninterruptible power supply - Wikipedia
Voltage multiplier
A voltage multiplier is an electrical circuit that converts AC electrical power from a lower voltage to a higher DC voltage, typically using a network of capacitors and diodes.Voltage multipliers can ...
Voltage multiplier - Wikipedia
Power supply unit (computer)
A power supply unit (PSU) converts mains AC to low-voltage regulated DC power for the internal components of a computer. Modern personal computers universally use a switched-mode power supply. Some po...
Power supply unit (computer) - Wikipedia
Welding power supply
A welding power supply is a device that provides an electric current to perform welding. Welding usually requires high current (over 80 amperes) and it can need above 12,000 amperes in spot welding. L...
Welding power supply - Wikipedia
AC 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. Other names include plug pack, plug-in adapter, adapter block, dom...
AC adapter - Wikipedia
Aluminium-air battery
Aluminium–air batteries or Al–air batteries produce electricity from the reaction of oxygen in the air with aluminium. They have one of the highest energy densities of all batteries, but they are not ...
Metal hydride fuel cell
Metal hydride fuel cells are a subclass of alkaline fuel cells that are in the research and development phase. A notable feature is their ability to chemically bond and store hydrogen within the cell....
Flow battery
A flow battery, or redox flow battery (after reduction–oxidation), is a type of rechargeable battery where rechargeability is provided by two chemical components dissolved in liquids contained within ...
Weston cell
The Weston cell is a wet-chemical cell that produces a highly stable voltage suitable as a laboratory standard for calibration of voltmeters. Invented by Edward Weston in 1893, it was adopted as the ...
Weston cell - Wikipedia
Power supply rejection ratio
In electronics, power supply rejection ratio or PSRR is a term widely used in the electronic amplifier (especially operational amplifier) or voltage regulator datasheets; used to describe the amount o...
Nuclear micro-battery
The new generation of swarm and communicating devices will explore new approaches: supplying information using power supplies generated from the world of living organisms or ATP molecules (similar to ...
Nanowire battery
A nanowire battery uses nanowires to increase the surface area of one or both of its electrodes. Some designs(Silicon, Germanium and Transition metal oxides), variations of the lithium-ion battery hav...
Powered USB
PoweredUSB, also known as Retail USB, USB PlusPower, and USB +Power, is an addition to the Universal Serial Bus standard that allows for higher-power devices to obtain power through their US...
Powered USB - Wikipedia
Compensated pulsed alternator
A compensated pulsed alternator, also known by the portmanteau compulsator, is a form of power supply.As the name suggests, it is an alternator that is "compensated" (see below) to make it better at d...
Solid-state battery
In solid-state ionics, a solid-state battery is a battery that has both solid electrodes and solid electrolytes. As a group, these materials are very good conductors of ions, which is necessary for go...
80 PLUS
80 Plus (trademarked 80 PLUS) is a voluntary certification program intended to promote efficient energy use in computer power supply units (PSUs). Launched in 2004 by Ecos Consulting, it certifies pro...
DC-to-DC converter
A DC-to-DC converter is an electronic circuit which converts a source of direct current (DC) from one voltage level to another. It is a class of power converter.
DC to DC converters are important ...
DC-to-DC converter - Wikipedia
Lemon battery
A lemon battery is a simple battery often made for the purpose of education. Typically, a piece of zinc metal (such as a galvanized nail) and a piece of copper (such as a penny) are inserted into a le...