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2. Voltage converter - Wikipedia

   en.wikipedia.org/wiki/Voltage_converter

   The output will usually be DC in the range 1.5–24 V. Power supplies that output either 100–120 V AC or 210–240 V AC are available; they are called inverters, due to the conversion from DC to AC rather than the voltage change. The output frequency and waveform of an inverter may not accurately replicate that supplied by mains electricity ...

3. Per-unit system - Wikipedia

   en.wikipedia.org/wiki/Per-unit_system

   The base value should only be a magnitude, while the per-unit value is a phasor. The phase angles of complex power, voltage, current, impedance, etc., are not affected by the conversion to per unit values. The purpose of using a per-unit system is to simplify conversion between different transformers.

4. Volt-ampere - Wikipedia

   en.wikipedia.org/wiki/Volt-ampere

   For a simple electrical circuit running on direct current, the electrical current and voltage are constant.In that case, the real power (P, measured in watts) is the product of the current (I, measured in amperes) and the voltage from one side of the circuit to the other (V, measured in volts):

5. Power inverter - Wikipedia

   en.wikipedia.org/wiki/Power_inverter

   Utility frequency conversion - if a user in (say) a 50 Hz country needs a 60 Hz supply to power equipment that is frequency-specific, such as a small motor or some electronics, it is possible to convert the frequency by running an inverter with a 60 Hz output from a DC source such as a 12V power supply running from the 50 Hz mains.

6. HP-45 - Wikipedia

   en.wikipedia.org/wiki/HP-45

   The calculator was code-named Wizard, [4] which is the first known use of a code name for a calculator. It also contained an Easter egg that allowed users to access a not-especially accurate stopwatch mode. [5] [6] An accurate version of the stopwatch mode was officially featured in the 1975 successor of the HP-45, the HP-55.

7. Amazon Robotics - Wikipedia

   en.wikipedia.org/wiki/Amazon_Robotics

   Amazon Robotics LLC, formerly Kiva Systems, is a Massachusetts-based company that manufactures mobile robotic fulfillment systems. [ 1 ] [ 2 ] It is a subsidiary of Amazon.com . Its automated storage and retrieval systems have been used in the past by companies including The Gap , Walgreens , Staples , Gilt Groupe , Office Depot , Crate ...

8. APC by Schneider Electric - Wikipedia

   en.wikipedia.org/wiki/APC_by_Schneider_Electric

   APC was founded in 1981 by three MIT Lincoln Lab electronic power engineers. Originally, the engineers focused on solar power research and development. [2] When government funding for their research ended, APC shifted its focus to power protection by introducing its first UPS in 1984.

9. Ammeter - Wikipedia

   en.wikipedia.org/wiki/Ammeter

   In this application, the charging of the battery deflects the needle to one side of the scale (commonly, the right side) and the discharging of the battery deflects the needle to the other side. A special type of zero-center ammeter for testing high currents in cars and trucks has a pivoted bar magnet that moves the pointer, and a fixed bar ...