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Inductive charging. The primary coil in the charger induces a current in the secondary coil in the device being charged. Inductive charging (also known as wireless charging or cordless charging) is a type of wireless power transfer. It uses electromagnetic induction to provide electricity to portable devices. Inductive charging is also used in ...
A tower type UPS with one IEC 60320 C14 input and three C13 outlets. A large data-center-scale UPS being installed by electricians. An uninterruptible power supply ( UPS) or uninterruptible power source is a type of continual power system that provides automated backup electric power to a load when the input power source or mains power fails.
A battery regenerator is a device that restores capacity to lead-acid batteries, extending their effective lifespan. They are also known as desulphators, reconditioners or pulse conditioning devices. [ 1] When batteries are stored in an uncharged state for an extended period, lead-sulfur deposits form and harden on the lead plates inside the ...
Thousands of patients who were treated at two hospitals in Portland, Oregon, are being told to get bloods tests because of an "infection control breach" linked to an anesthesiologist that may have ...
Brushless DC electric motor. The motor from a 3.5 in floppy disk drive. The coils, arranged radially, are made from copper wire coated with blue insulation. The rotor (upper right) has been removed and turned upside-down. The grey ring inside its cup is a permanent magnet. This particular motor is an outrunner, with the stator inside the rotor.
Last year, Bridgewater’s Ray Dalio said the U.S. was on the precipice of a debt crisis while JP Morgan’s Jamie Dimon has called the issue one of the most “predictable” problems the economy ...
In pictures shared on Facebook, the note is seen written in cursive ink on an old piece of paper with most of the words faded. "Dear Lee, received your letter yesterday, [and] was glad to hear ...
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