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  2. Uninterruptible power supply - Wikipedia

    en.wikipedia.org/wiki/Uninterruptible_power_supply

    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 UPS differs from a traditional auxiliary / emergency power system or standby generator in that it will provide near-instantaneous ...

  3. Insulated-gate bipolar transistor - Wikipedia

    en.wikipedia.org/wiki/Insulated-gate_bipolar...

    It is used in switching power supplies in high-power applications: variable-frequency drives (VFDs) for motor control in electric cars, trains, variable-speed refrigerators, and air conditioners, as well as lamp ballasts, arc-welding machines, uninterruptible power supply systems (UPS), and induction stoves.

  4. AEG (German company) - Wikipedia

    en.wikipedia.org/wiki/AEG_(German_company)

    Allgemeine Elektricitäts-Gesellschaft AG (German for 'General electricity company JSC '; [ 2 ]AEG) was a German producer of electrical equipment. It was established in 1883 by Emil Rathenau as the Deutsche Edison-Gesellschaft für angewandte Elektricität in Berlin. The company's initial focus was driven by electrical lighting, as in 1881 ...

  5. Standby power - Wikipedia

    en.wikipedia.org/wiki/Standby_power

    Standby power. Standby power, also called vampire power[1], vampire draw, phantom load, ghost load, or leaking electricity, refers to how electronic and electrical appliances consume electric power. At the same time, they are switched off (but are designed to draw some power) or in standby mode. It only occurs because some devices claim to be ...

  6. Superconducting magnetic energy storage - Wikipedia

    en.wikipedia.org/wiki/Superconducting_magnetic...

    Uninterruptible power supplies. Uninterruptible Power Supplies (UPS) are used to protect against power surges and shortfalls by supplying a continuous power supply. This compensation is done by switching from the failing power supply to a SMES systems that can almost instantaneously supply the necessary power to continue the operation of ...

  7. Power inverter - Wikipedia

    en.wikipedia.org/wiki/Power_inverter

    A power inverter, inverter, or invertor is a power electronic device or circuitry that changes direct current (DC) to alternating current (AC). [1] The resulting AC frequency obtained depends on the particular device employed. Inverters do the opposite of rectifiers which were originally large electromechanical devices converting AC to DC.

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