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Saturday, July 25, 2020 | History

2 edition of Magnetic amplifiers and saturable reactors. found in the catalog.

Magnetic amplifiers and saturable reactors.

M. G. Say

Magnetic amplifiers and saturable reactors.

by M. G. Say

  • 150 Want to read
  • 39 Currently reading

Published by Newnes in London .
Written in English

    Subjects:
  • Magnetic amplifiers.

  • Edition Notes

    Includes bibliographies.

    StatementContributors: P. D. Atkinson [and others]
    SeriesElectrical engineering progress series
    Classifications
    LC ClassificationsTK2851 .S3
    The Physical Object
    Paginationvii, 199 p.
    Number of Pages199
    ID Numbers
    Open LibraryOL6150261M
    LC Control Number54001571
    OCLC/WorldCa3402338

    Magnetic Amplifiers And Saturable Reactors Hardcover – Jan. 1 by M.G. Say (Author) See all formats and editions Hide other formats and editionsAuthor: M.G. Say. 2. in a power modulating system, the combination including an a.c. power supply, an autotransformer means connected to said a.c. power supply, saturable reactor means having a gate, an auxiliary and a control winding per core and having at least two core elements, the gate and auxiliary windings of each core element having the same number of turns and being connected in series with the.

    Thesis (Sc.D.) Massachusetts Institute of Technology. Dept. of Electrical Engineering, magnetic amplifiers and reactors: map/ r Three-legged, saturable-core reactor. SECOND HALF CYCLE another approach to solving the problem of load flux affecting control flux is shown in figure.

    Magnetic core for saturable reactor, magnetic amplifier type multi-output switching regulator and computer having magnetic amplifier type multi-output switching regulator. Patent number: Abstract: A magnetic core for use in a saturable reactor made of an Fe-based soft-magnetic alloy comprising as essential alloying elements Fe, Cu and M. In a saturable reactor you need two A.C. windings having an identical number of turns but each wound in an opposite direction and these are placed on the two outside legs of an E and I core, the D.C. or control winding is wound on the center leg.


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Magnetic amplifiers and saturable reactors by M. G. Say Download PDF EPUB FB2

Visually a mag amp device may resemble a transformer, but the operating principle is quite different from a transformer – essentially the mag amp is a saturable makes use of magnetic saturation of the core, a non-linear property of a certain class of transformer cores.

For controlled saturation characteristics, the magnetic amplifier employs core materials that have been designed. Magnetic Amplifiers, Magnetic Reactors, Linear Reactors, Saturable Reactors, Control Modules, Mumbai, India: Magnetic Amplifiers And Reactors: MAP/ R: Three-legged, saturable-core reactor.

SECOND HALF CYCLE another approach to solving the problem of. A magnetic amplifier or saturable reactor control is illustrated in Fig. A coil fed with a variable DC current is wound around a magnetic core which also carries a winding from the AC output of the transformer. As the DC level in the control coil is increased, the average value of magnetic flux within the core increases towards the saturation level thus limiting the variation of the.

A magnetic amplifier or saturable reactor control is illustrated in Fig. A coil fed with a variable DC current is wound around a magnetic core which also carries a winding from the AC output of the transformer.

As the DC level in the control coil is increased, the average value of magnetic flux within the core increases towards the. A saturable reactor in electrical engineering is a special form of inductor where the magnetic core can be deliberately saturated by a direct electric current in a control winding.

Once saturated, the inductance of the saturable reactor drops dramatically. This decreases inductive reactance and allows increased flow of the alternating current (AC). Introduction; Magnetism; Electromagnetism; Magnetic Circuits; The Saturable Reactor; Self-Saturating Types; Three-Legged Core Magnetic Amplifiers; Compensating.

Magnetic Amplifier Theory. Earlier in this article we studied that it is designed based on the design of the saturable reactor, which consists of major parts such as DC source, magnetic.

A magnetic amplifier - or saturable reactor, as it is sometimes called - is a true amplifier. Like a vacuum tube, it uses a small signal to control a large one. But there are sharp differences. Where the vacuum tube controls a current flowing to a d.c.

power supply, the magnetic amplifier. SATURABLE-CORE REACTOR A saturable-core reactor is a magnetic-core reactor (coil) whose reactance is controlled by changing the permeability of the core. The permeability of the core is changed by varying a unidirectional flux (flux in one direction) through the core.

Figure shows a saturable-core reactor that is used to control the. This gives magnetic amplifiers the fast response required in modern electronic instrumentation.

One of these new units is the "Ferristor" saturable reactor, made by the Berkeley Division of Beckman Instruments, Inc. It is a tiny device, not much larger than the eraser on a pencil. Technically it is a subminiature, ultrafast saturable reactor. In the analysis of a self-saturating magnetic amplifier, the flux resetting characteristic of the saturable reactor must be described analytically.

In most analyses of the past, the reactor characteristic has been represented by a single-valued relation between flux and magnetomotive force. Such a. Magnetic Amplifiers and Saturable Reactors [M.G.

Say] on *FREE* shipping on qualifying offers. Books Advanced Search New Releases Best Sellers & More Children's Books Textbooks Textbook Rentals Sell Us Your Books Best Books of the Month.

Saturable Reactor Winding Configurations. Osborne has been involved in a wide variety of saturable reactor design projects over the years. Magnetic amplifier technology involves unique techniques that can be tailored to match the fit, form, and function of your ’ve prepared the illustrations below to share six established saturable reactor element core and coil configurations.

Additional Physical Format: Online version: Say, M.G. (Maurice George), Magnetic amplifiers and saturable reactors. London, Newnes [] (OCoLC) The magnetic a device using saturable reactors either or in combination with other circuit elements to secure anrplifioation.1 The element of the magnetic amplifier, the saturable reactor, is an elec~romagnetic device employing one or more nonlinear magnetic cores.

This combination is used in alter. difference between a magnetic amplifier and a saturable core reactor is that the magnetic amplifier uses a half of the magnetic loop and the amplifier uses the complete magnetic loop.

Because of this the term “Saturable Core” is often substituted by the term “Magnetic Amplifier”. Basically a saturable reactor consists of three essential.

Some mag amp articles convey a "Stuff Shirt" attitude that a circuit must have diodes in order to be called a Magnetic Amplifier and that a circuit without diodes is called a Saturable Reactor. A circuit without diodes may have a power gain of just 15 but it is still impressive and can certainly amplify.

A magnetic amplifier - or saturable reactor, as it is sometimes called - is a true amplifier. Like a vacuum tube, it uses a small signal to control a large one. But there are sharp differences.

Where the vacuum tube controls a current flowing to a d.c. power supply, the magnetic amplifier controls an a.c. flow.

The block diagram symbol for a magnetic amplifier is shown in figure The triangle is the general symbol for an amplifier. The saturable-core reactor symbol in the center of the triangle identifies the amplifier as a magnetic amplifier.

Notice the input and output signals shown. The input signal is a small-amplitude, low-power a.c. signal. Saturable Reactors are Magnetic Amplifiers Saturable reactors are not common electromagnetic components. Here is a brief overview of why saturable reactors are occasionally referred to as magnetic amplifiers.

Saturable reactors are considered magnetic amplifiers because they can use a relatively small amount of DC volt-amps to control the transfer of a significant amount of AC. You will find out a little later how a magnetic amplifier differs from a saturable-core reactor.

First you should know a few more things about the saturable-core reactor. If a d.c. voltage is applied to the control winding of a saturable-core reactor and an a.c. voltage is applied to the load windings, the a.c.

flux will aid the d.c. flux on.saturable inductors can be aligned in antiparallel to create a magnetic amplifier. The theory of magnetic amplifiers is dated, but its simplistic design has benefits for modern applications.

The magnetic amplifier acts as a variable impedance switch where a small amount of DC current can control the output voltage of a circuit. Magnetic amplifiers and saturable reactors by M. G. Say. First published in 1 edition.Accessible book, Alternating current Electric motors, Cathode ray tubes, Design and construction, DictionariesFerrite, Handbooks, manuals, Iron alloys, Magnetic amplifiers, Magnetic .