ward leonard control

  • 1 Ward Leonard control — Ward Leonard Control, also known as the Ward Leonard Drive System, was a widely used DC motor speed control system introduced by Harry Ward Leonard in 1891. In early 1900s, the control system of Ward Leonard was adopted by the U.S Navy and also… …

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  • 2 Harry Ward Leonard — Infobox Scientist name = Harry Ward Leonard box width = image width = 229px caption = Harry Ward Leonard birth date = February 8, 1861 birth place = Cincinnati, Ohio, U.S.A death date = February 18, 1915 death place = New York, U.S.A residence =… …

    Wikipedia

  • 3 Harry Ward Leonard — (* 8. Februar 1861 in Cincinnati, Ohio; † 18. Februar 1915 in New York) war ein US amerikanischer Elektroingenieur und Erfinder. Seine 30 jährige Karriere spannte sich vom späten 19. bis in das frühe 20. Jahrhundert. Er wurde mit seiner …

    Deutsch Wikipedia

  • 4 Leonard Braithwaite — Leonard Austin Braithwaite (born October 23, 1923) is a lawyer and politician in Ontario, Canada. He served in the Legislative Assembly of Ontario from 1963 to 1975, as a member of the Liberal Party. He was the first Black Canadian to be elected… …

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  • 5 Ward Churchill — Infobox Celebrity name = Ward Churchill imagesize = 200px caption = Ward Churchill speaking at the Bay Area Anarchist Book Fair, May 2005. birth date = birth date and age|mf=yes|1947|10|2 birth place = Elmwood, Illinois, United States death date …

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  • 6 WARD, Frederick William (1847-1934) — journalist was born in New Zealand on 5 April 1847. He was the fourth son of the Rev. Robert Ward, a Primitive Methodist clergyman, and was educated for the same ministry. He came to Australia in his early twenties and was associated with the Rev …

    Dictionary of Australian Biography

  • 7 Direct torque control — (DTC) is one method used in variable frequency drives to control the torque (and thus finally the speed) of three phase AC electric motors. This involves calculating an estimate of the motor s magnetic flux and torque based on the measured… …

    Wikipedia

  • 8 Harry W. Leonard — Harry Ward Leonard (* 8. Februar 1861 in Cincinnati; † 18. Februar 1915 in New York) war ein US amerikanischer Elektroingenieur und Erfinder. Seine 30 jährige Karriere spannte sich vom späten 19. bis in das frühe 20. Jahrhundert. Er wurde mit… …

    Deutsch Wikipedia

  • 9 Brushed DC electric motor — A brushed DC motor is an internally commutated electric motor designed to be run from a direct current power source. Contents 1 Simple two pole DC motor 2 The commutating plane 2.1 Compensation for stator field distortion …

    Wikipedia

  • 10 Booster (electric power) — A Booster was a motor generator (MG) set used for voltage regulation in direct current (DC) electrical power circuits. The development of alternating current and solid state devices has rendered it obsolete. Boosters were made in various… …

    Wikipedia

  • 11 Electric motor — For other kinds of motors, see motor (disambiguation). For a railroad electric engine, see electric locomotive. Various electric motors. A 9 volt PP3 transistor battery is in the center foreground for size comparison. An electric motor converts… …

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  • 12 Motor controller — A motor controller is a device or group of devices that serves to govern in some predetermined manner the performance of an electric motor.[1] A motor controller might include a manual or automatic means for starting and stopping the motor,… …

    Wikipedia

  • 13 List of electrical engineering topics — This is a listing of electrical engineering and electronic engineering topics and related terms. Contents 1 Electromagnetism 2 Physical laws 3 Control engineering 4 Electronics …

    Wikipedia

  • 14 Brushless DC electric motor — A microprocessor controlled BLDC motor powering a micro remote controlled airplane. This external rotor motor weighs 5 grams, consumes approximately 11 watts (15 millihorsepower) and produces thrust of more than twice the weight of the plane …

    Wikipedia

  • 15 DC injection braking — DC injection brake module [1] DC injection braking is a method of slowing AC electric motors. A DC voltage is injected into the winding of the AC motor after the AC voltage is disconnected, providing braking force to the rotor [2] …

    Wikipedia

  • 16 Amplidyne — An amplidyne is an electrodynamic amplifier invented during World War II by Ernst Alexanderson.It is an early form of servomechanism used to implement position feedback control for large motors. A small electrical signal can control the position… …

    Wikipedia

  • 17 List of electrical engineering topics (alphabetical) — This page aims to list, alphabetically, all articles related to the specific discipline of electrical and electronics engineering. For a thematic list, please see List of electrical engineering topics. For the broad field of engineering, see List …

    Wikipedia

  • 18 Metadyne — For other uses, see Metadyne (disambiguation). A Metadyne is an electrical machine with three, or more, brushes. It can be used as an amplifier or rotary transformer. It is similar to a third brush dynamo but much more complex, having additional… …

    Wikipedia

  • 19 Electric generator — U.S. NRC image of a modern steam turbine generator In electricity generation, an electric generator is a device that converts mechanical energy to electrical energy. A generator forces electric charge (usually carried by electrons) to flow… …

    Wikipedia

  • 20 DC motor — A DC motor is an electric motor that runs on direct current (DC) electricity. Contents 1 Brush 2 Brushless 3 Uncommutated 4 Connection types …

    Wikipedia