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   Chokes, Swinging

A choke is an inductor designed to have a high reactance to a particular frequency when used in a signal-carrying circuit. They are inductances that isolate AC frequency currents from certain areas of a radio circuit. Chokes depend upon the property of self-inductance for their operation. They are used to block alternating current while passing direct current. Common-mode choke coils are useful in a wide range of prevention of electromagnetic interference (EMI) and radio frequency interference (RFI) from power supply lines and for prevention of malfunctioning of electronic equipment.



Bronze Partners
Abbott Technologies, Inc.
AlfaMag Electronics LLC
Allied Components International
Amecon, Inc.
American Magnetics
Amidon Inductive Components
ATC-Frost Magnetics / Standex Electronics
Bel Fuse Inc.
Bey Electronics Corp.
Bomag USA, LLC
Bridgeport Magnetics/Tortran Inc.
Caddell-Burns Manufacturing Co., Inc.
Coast Magnetics
Coin Electronics.Co.,Ltd
Communication Coil Inc.
Datatronic Distribution, Inc.
EAG Electronics
EK Magnetics
Electro Assemblies Corp.
Electromech, Inc.
Electronika Intl. Inc.
EPCO Products Inc.
Forest Electric Company
Freed Transformer Company, Inc.
Gavagan Electronics
GCi Technologies
Gowanda Electronics Corp.
Grand Transformer, Inc.
Hitran Corp.
Hurricane Electronics Lab., Inc.
I-TECH CORP.
Inductor Supply Inc
James Millen Electronics
Kaschke U.S.A. Inc.
Keytronics, Inc.
Mag-Con Engineering, Inc.
Magnetic Circuit Elements
Magnetic Windings Co., Inc.
Magnetico, Inc.
Mainstar Industries Limited
Manutech, Inc.
Microtran Manufacturing Division
Minntronix, Inc
Multicomp/ZMAN Magnetics
Northlake Engineering, Inc.
Peter W Dahl Co Inc
Precision Inc
Prem Magnetics, Inc.
Pulse Specialty Components
RCD Components, Inc.
Renco Electronics, Inc.
RFE International, Inc.
Sigma Electronics Inc
South American Development Corp.
Standard Magnetic Corp.
Standex Electronics Inc.
Tamura Corp. of America
The Inter-Technical Group, Inc.
Thordarson Inc.
Thordarson Meissner Incorporated
Todd Systems, Inc.
Toroid Corporation of Maryland
Torotel Products Inc.
Tranex Inc
Transtek Magnetics
Triad Magnetics (formerly Magnetek)
TT electronics BI Technologies
Victoria Magnetics
Vishay Intertechnology
Vitec Electronics Corp.
Wilco Corporation
Wirebenders, Inc.
World Products Inc.
XFMRS Inc
Zixel, Ltd.
ZMAN Magnetics
Fix & Prog. Sinewave Oscillators - Frequency Devices

 

Books
The Universal Baseball Association, Inc., J. Henry Waugh, Prop.
Robert Coover

Excerpt - page 190: "... the Association. Dazzling fielder out in center, good throwing arm. Smooth-swinging choke hitter who sprayed to all fields. One big year in ..."
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Valve Amplifiers, Third Edition
Morgan Jones

Excerpt - page 305: "... 60 Hz mains) is: I _ Um(RMS) min.(m ^' L(H) Choke input supplies invariably feed a ... problem was to use a swinging choke, whose inductance rose at low currents, and although these ..."
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Switching Power Supply Design
Abraham I. Pressman

Excerpt - page 117: "... inductance will be greater by that percentage. Such inductors or chokes are referred to as "swinging chokes" and in many applications are desirable. For example, if ..."
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Reference Data for Engineers Radio, Electronics, Computer & Communications (Reference Data for Engineers)
Mac E. Van Valkenburg and Wendy M. Middleton

Excerpt - page 509: "... of load resistor R, and allowable ripple voltage factor r. Swinging Chokes-Swinging chokes have inductances that vary with the load current. When ..."
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GROL Plus: General Radiotelephone Operator License Plus Radar Endorsement
Gordon West, Fred Maia, and Gerald Luecke

Excerpt - page 127: "... A. Goniometer B. Deflection yoke C. UART integrated circuit D. Swinging choke ANSWER A: High-frequency automatic direction finders with an oscilloscope-type readout ..."
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Valve and Transistor Audio Amplifiers
John Linsley Hood

Excerpt - Index: "... 131 Charge on electron, 16 Chip dimensions, in BJT, 126 Choke, swinging, 30 Class A operation, amplifier output stages, 155 J.E. Sugden, ..."
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Tales to Give You Goosebumps: Ten Spooky Stories (Special Edition, No 1)
R. L. Stine

Excerpt - page 68: "... Jimmy, the pitcher, would lob me the ball and I'd choke - swinging with everything I had as if they were fastballs. Some ..."
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Switchmode Power Supply Handbook (McGraw-Hill Handbooks)
Keith Billings

Excerpt - page 31: "... Green/Yellow vide a larger inductance at low DC currents. The swinging choke maintains continuous current conduction to a lower load current. This ..."
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Switching Power Supply Design & Optimization
Sanjaya Maniktala

Excerpt - page 69: "... r will increase. Note that some inductors are by design "swinging chokes," and their inductance may change substantially (usually decrease) as the ..."
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Softball Skills & Drills (Softball Skills & Drills)
Judi Garman

Excerpt - page 163: "... straight to the ball. e a lighter bat or choke up. Swinging Too Early Result e batter will pull the ball ..."
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Handbook for Sound Engineers: The New Audio Cyclopedia
Glen M. Ballou

Excerpt - page 731: "... by other components. When the direct-current rating of a filter choke is exceeded, the core becomes ... render the supply useless. 22.3.2.1 Swinging Chokes A swinging choke is used in the first filter ..."
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DC Power Supplies: A Technician's Guide
Joseph J. Carr

Excerpt - Index: "... 44 chargers (see batteries, charging batteries) chassis ground-connection hazard, 31 chokes, swinging vs. smoothing, 173 circuit breakers, 33-34 coils, magnetic fields, 98, ..."
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Pulsed Power (IFIP International Federation for Information Processing S.)
Gennady A. Mesyats

Excerpt - page 385: "... circuits, between the energy storage capacitor and the load, a swinging choke and some combination of a linear transmission line, L, and ..."
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Practical Switching Power Supply Design (Academic Press Professional and Technical Series)
Martin C. Brown

Excerpt - page 83: "... in the design process. It more closely resembles a forward-mode choke, and, in fact, the flyback's original name was a "swinging choke" regulator. If one were to look at the time ..."
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The Beginner's Handbook of Amateur Radio
Clay Laster

Excerpt - page 217: "... reduces the do output voltage of the power supply. The choke input filter in Fig. C ... is referred to as a swinging choke; the inductance varies with the load current. A disadvantage ..."
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Christiansen's Electronics Problem-Solving Companion: Hundreds of Fully Worked-Out Problems and Practice Problems, Covering Solid State Devices, Applied Math, Digital Electronics (Problem Solvers S.)
Victor F. C. Veley and Jacqueline S. Parkinson

Excerpt - page 517: "... for each filter. Summarizing, for a given secondary voltage, the choke input filter has a lower ... a superior voltage regulation. The swinging choke The required value of the input filter choke is ..."
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Valve Radio and Audio Repair Handbook
CHAS MILLER

Excerpt - page 54: "... certain types of automatic volume control, to be discussed later. `Swinging choke' smoothing Any HT supply employing the kind of choke- capacity ..."
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High Performance Audio Power Amplifiers
Ben Duncan

Excerpt - page 237: "... `active', switching power supplies. Instead, 1930s power supply technology, the choke, possibly even a swinging choke, provides a synergistic answer [3]. Such a choke may ..."
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Merry Men
Carolyn Chute

Excerpt - page 53: "... a left," Gramp B. nags on. There's a dried carnation swinging from the choke, flower from Edmund 's dead wife's grave. Tied there by ..."
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Analog Electronics
Ian Hickman

Excerpt - page 247: "... necessary lateral thinking has already been done for us; the choke need only have a high ... this characteristic is called a swinging choke, indicating that its effective value varies according to the ..."
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Handbook of Modern Ferromagnetic Materials (The International Series in Engineering and Computer Science)
Alex Goldman

Excerpt - Index: "... cores, 474 Chemical analysis, 309 Eddy current losses, 59-61, 251 Choke, swinging, 423 Electrodes, 570 Chromium oxide, 249 Electromagnetism, 21 Circulator, microwave, ..."
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Magnetic Components for Power Electronics
Alex Goldman

Excerpt - Index: "... Bias, D.C.,157 Bipolar drive, I1-13 Boost Converter, 6-7 Buck Converter,5-7 Choke, swinging, See Power Inductor Cobalt-iron alloy, 35 Coercive force, 69 Common-mode ..."
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Basic Arrest and Prisoner Control Tactics: Practical Techniques, Fast, Simple, Effective : The Cane Method
Andries C. Cane

Excerpt - page 221: "... Lawman's Assailant 1. Back bear hug (arms trapped) 2. Back choke 3. Back arm pull 4. Front choke (swinging arm escape) 221 ..."
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Practical Design Power Supplies
Ron Lenk

Excerpt - page 30: "... because you cannot have an infinite inductance. Practical Note A swinging choke, such as that produced with an MPP core, is an ..."
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Handbook of Transformer Design and Applications
William M. Flanagan

Excerpt - page 278: "... ripple voltage for a specified condition of three-phase imbalance. 12.5 SWINGING CHOKES In choke input filter supplies having varying load currents, the ..."
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Radio-Frequency Electronics: Circuits and Applications
Jon B. Hagen

Excerpt - page 91: "... POWER SUPPLIES current is to use a "swinging" choke, which has high inductance when needed (i.e. at low current) ..."
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The Benchtop Electronics Handbook: 260 Most Common Popular Electronics
Victor F. C. Veley

Excerpt - page 289: "... voltage Bleeder Full load resistor current current Figure 115-4 +V, Choke input filter -Capacitor input filter ... a superior voltage regulation. The Swinging Choke The required value of the input filter choke is ..."
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Cumulative Subject Index Volumes 1-32 (Experimental Methods in the Physical Sciences)
Marc de Graef

Excerpt - page 331: "... 410 Swept oscillator wave analyzer. L.DV signal processing, 18, 165 Swinging choke. 2A, 204 Switchboard model, 16B, 344 Switches, series, 5B, 311-314 ..."
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Scroggie's Foundations of Wireless and Electronics, Eleventh Edition
Roger Amos and S W Amos

Excerpt - page 270: "... an excessive wastage of volts. For this reason an iron-cored choke coil is often substituted. It ... special kind, known as a swinging choke. Instead of being designed so that its inductance varies ..."
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Dictionary of Electrical and Computer Engineering

Excerpt - page 563: "... swinging choke detections of targets of interest (contacts) into tracks with additional ..."
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Solid-State Power Conversion Handbook
Ralph E. Tarter

Excerpt - page 20: "... of an input filter capacitor is the use of a swinging choke (discussed in Chapters 3 and 4) for the input inductor. ..."
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Electronic Components: Selection and Application Guidelines
Victor Meeldijk

Excerpt - page 27: "... Glossary Swinging Choke. An iron core choke operated with its core near magnetic ..."
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Regulated Power Supplies
Irving M. Gottlieb

Excerpt - page 300: "... "hiformers. " The magnetic-biasing principle also enables the design of swinging chokes with very pronounced inductance change as a function of load ..."
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The Big Leaguer
William Heyliger

Excerpt - page 197: "... sent a word of warning down the line. Boys stopped swinging and began to choke their bats and take a quick, sharp cut at the ..."
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Rowdy Richard: A Firsthand Account of the National League Baseball Wars of the 1930's and the Men Who Fought Them.
Dick Bartell and Norman L. Macht

Excerpt - page 355: "... I do blame the hitter. With two strikes, he should choke up and be swinging at anything that might be close enough to be called ..."
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Electronic Filters, Amplifiers & Oscillators - Frequency Devices
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