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  2. Cycloconverter - Wikipedia

    en.wikipedia.org/wiki/Cycloconverter

    A cycloconverter (CCV) or a cycloinverter converts a constant amplitude, constant frequency AC waveform to another AC waveform of a lower frequency by synthesizing the output waveform from segments of the AC supply without an intermediate DC link (Dorf 1993, pp. 2241–2243 and Lander 1993, p. 181). There are two main types of CCVs, circulating ...

  3. Frequency changer - Wikipedia

    en.wikipedia.org/wiki/Frequency_changer

    A cycloconverter is also a type of frequency changer. Unlike a VFD, which is an indirect frequency changer since it uses an AC-DC stage and then a DC-AC stage, a cycloconverter is a direct frequency changer because it uses no intermediate stages. Another application is in the aerospace and airline industries. Often airplanes use 400 Hz power so ...

  4. AC-to-AC converter - Wikipedia

    en.wikipedia.org/wiki/AC-to-AC_converter

    A cycloconverter constructs an output, variable-frequency, approximately sinusoid waveform by switching segments of the input waveform to the output; there is no intermediate DC link. With switching elements such as SCRs, the output frequency must be lower than the input.

  5. Variable-frequency drive - Wikipedia

    en.wikipedia.org/wiki/Variable-frequency_drive

    Small variable-frequency drive Chassis of above VFD (cover removed). A variable-frequency drive (VFD, or adjustable-frequency drive, adjustable-speed drive, variable-speed drive, AC drive, micro drive, inverter drive, variable voltage variable frequency drive, or drive) is a type of AC motor drive (system incorporating a motor) that controls speed and torque by varying the frequency of the ...

  6. Tap converter - Wikipedia

    en.wikipedia.org/wiki/Tap_converter

    The tap converter is a variation on the cycloconverter, invented in 1981 by New York City electrical engineer Melvin Sandler and significantly functionally enhanced in 1982 through 1984 by graduate students Mariusz Wrzesniewski, Bruce David Wilner, and Eddie Fung.

  7. Component parts of internal combustion engines - Wikipedia

    en.wikipedia.org/wiki/Component_parts_of...

    An illustration of several key components in a typical four-stroke engine. For a four-stroke engine, key parts of the engine include the crankshaft (purple), connecting rod (orange), one or more camshafts (red and blue), and valves. For a two-stroke engine, there may simply be an exhaust outlet and fuel inlet instead of a valve system.

  8. NFL coaching requests, hires: Full list of teams and names ...

    www.aol.com/sports/nfl-coaching-requests-hires...

    Black Monday in the NFL, the day after the final game of the regular season, is typically a day of firings.The New England Patriots didn't wait, firing Jarod Mayo on Sunday.And while Black Monday ...

  9. Superior Air Parts - Wikipedia

    en.wikipedia.org/wiki/Superior_Air_Parts

    The company was at that time able to ship almost 90% of parts in its catalog and was training Chinese technicians in Vantage engine production for the Asian market. [ 9 ] In March 2019 the Superior Air Parts XP-400 and Superior Air Parts XP-382 engines were withdrawn from service and all customer engines were subject to a mandatory, immediate ...

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