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   Chokes, Filter

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
3L Global Electronics
A E M Inc.
Abbott Technologies, Inc.
ABC Taiwan Electronics Corp.
Abracon Corporation
Advanced Components Industries, Inc.
AlfaMag Electronics LLC
Allied Components International
Alpha-Core, Inc.
Amecon, Inc.
American Magnetics
American Toppower
Americor Electronics, Ltd.
Amidon Inductive Components
Amveco Magnetics Inc
Anodyne Components, Inc.
API Delevan Inc.
APX Technologies Inc.
Armbar Industries, Inc.
ATC-Frost Magnetics / Standex Electronics
AVX Corporation
Badger Transformer Comp. Inc.
Bel Fuse Inc.
Bey Electronics Corp.
BH Electronics, Inc.
Bicron Electronics
Bomag USA, LLC
Bridgeport Magnetics/Tortran Inc.
Caddell-Burns Manufacturing Co., Inc.
Cambion
Central Technologies
CET Technology
CoEv, Inc.
Coil Specialty Company
Coilcraft
Coiltech Inc.
Coin Electronics.Co.,Ltd
Communication Coil Inc.
Compostar Inc.
Corona Magnetics, Inc.
Crownpo Technology Inc.
CTM Magnetics
Curtis Industries
Custom Bobbin Windings
Custom Coils Inc.
Custom Magnetics Inc.
Datatronic Distribution, Inc.
Delta Products Corp.
Deltona Transformer Corp.
DT Magnetics
Dynage/Power & Magnetics
Dynapower Corporation
EAG Electronics
ECI/Electronic Coils
Eichhoff Electronics, Inc.
EK Magnetics
Electro Assemblies Corp.
Electromech, Inc.
Electronika Intl. Inc.
Elytone Electronics Co., Ltd.
EPCO Products Inc.
ERA Elektrotechnik GmbH
ETronic USA
Fastron Electronics
Ferroxcube USA
Forest Electric Company
Freed Transformer Company, Inc.
Frequency Management
Frontier Electronics
Gavagan Electronics
GCi Technologies
General Linear Systems, Inc.
Glen Magnetics Inc.
Goguen Industries Inc.
Gowanda Electronics Corp.
Grand Transformer, Inc.
GRE North America, Inc.
HALO Electronics, Inc.
Hammond Manufacturing Company
Hisonic, Inc.
Hitran Corp.
Hurricane Electronics Lab., Inc.
I-TECH CORP.
Inductor Supply Inc
ISL Products International Limited
J.W. Miller Magnetics
James Electronics
Jantek Electronics Co., Ltd
Jaro Components, Inc.
Kappa Technologies, Inc.
Kaschke U.S.A. Inc.
Kemet Electronics Corp.
Keytronics, Inc.
KOA Speer Electronics, Inc.
LCR Electronics, Inc.
Lenco Electronics, Inc.
Mag-Con Engineering, Inc.
Magnelab
Magnetic Circuit Elements
Magnetic Component Engineering, Inc.
Magnetic Windings Co., Inc.
Magnetico, Inc.
Mainstar Industries Limited
Manutech, Inc.
Mech-Tronics
Mercatus International Marketing
Metuchen Capacitors, Inc.
Microtran Manufacturing Division
Mingstar Electronic Corp.
Minntronix, Inc
Multicomp/ZMAN Magnetics
Murata Electronics North America, Inc.
NEC Tokin America, Inc.
Northlake Engineering, Inc.
PCA Electronics Inc.
Peter W Dahl Co Inc
Pico Electronics, Inc.
PLITRON Manufacturing, Inc.
Polara Engineering Inc.
PowerPax UK Limited
Powertronix Corp.
Powervar
Precision Electronics
Precision Inc
Prem Magnetics, Inc.
Pulse, A Technitrol Company
Radius Power
Raycom Electronics, Inc.
RCD Components, Inc.
Renco Electronics, Inc.
RFE International, Inc.
RFI Corp.
Rhombus Industries
Schaffner EMC, Inc.
Schott Magnetics
Segue Electronics, Inc
Shogyo Int'l Corp.
Sigma Electronics Inc
Signal Transformer
South American Development Corp.
Stancor
Standard Magnetic Corp.
Standex Electronics Inc.
Steward
Sumida America
Tabtronics Incorporated
Taiyo Yuden (U.S.A.), Inc.
Tamura Corp. of America
TDK Corporation of America
The Inter-Technical Group, Inc.
The Winatic Corp.
Thordarson Inc.
Thordarson Meissner Incorporated
Todd Systems, Inc.
Toko America, Inc.
Toroid Corporation of Maryland
Torotel Products Inc.
Tranex Inc
TransERA Electronics Inc.
Transformer Manufacturers Inc.
Transpower Technologies, Inc
Transtek Magnetics
Triad Magnetics (formerly Magnetek)
TT electronics BI Technologies
Tyco Electronics Corp.
V & F Transformer Corp.
Venkel Ltd.
Ventronics, Inc.
Victoria Magnetics
Vishay Intertechnology
Vitec Electronics Corp.
VOGT Electronic of NA, Inc.
West Coast Magnetics
Wilco Corporation
Wirebenders, Inc.
World Power Components
World Products Inc.
Wurth Electronics Inc.
XFMRS Inc
Zambre Company, Inc.
Zixel, Ltd.
ZMAN Magnetics
Fixed and programmable amplifiers - Frequency Devices

 

Books
Microstrip Filters for RF/Microwave Applications
Jia-Shen G. Hong and M. J. Lancaster

Excerpt - page 3: "... examples. Chapter 6 discusses some typical microstrip highpass and bandstop filters. These include quasilumped element and ... well as filters for RF chokes. Design equations , tables and examples are presented for easy ..."
See more references to Chokes, Filter in this book.
EMI Filter Design Second Edition Revised and Expanded (Electrical and Computer Engineering)
Richard Lee Ozenbaugh

Secrets of RF Circuit Design
Joseph J. Carr

Excerpt - page 22: "... is the appropriate unit for inductors used as the smoothing filter chokes used in do power supplies, but is far too large ..."
See more references to Chokes, Filter in this book.
Teach Yourself Electricity and Electronics, Fourth Edition (Teach Yourself)
Stan Gibilisco

Excerpt - page 342: "... but with a half-wave rectifier it is 60 Hz. The filter capacitors are thus recharged twice ... half-wave rectifier circuits. Capacitors and Chokes Another way to smooth out the dc from a rectifier ..."
See more references to Chokes, Filter in this book.
Electric Machinery Fundamentals (McGraw-Hill Series in Electrical and Computer Engineering)
Stephen J. Chapman and Stephen Chapman

Excerpt - page 170: "... with the line to smooth ac current changes A common filter in rectifier circuits used with machines is a single series inductor , or choke. A three-phase full-wave rectifier with a choke filter is shown ..."
See more references to Chokes, Filter in this book.
Auto Repair For Dummies
Deanna Sclar

Excerpt - page 276: "... V Determine whether more radical surgery is in order. Fuel filter Choke butterfly Throttle arm and Figure 13-9: A typical carburetor. _11 ..."
See more references to Chokes, Filter in this book.
GROL Plus: General Radiotelephone Operator License Plus Radar Endorsement
Gordon West, Fred Maia, and Gerald Luecke

Excerpt - page 350: "... devices in a 400-Hz power supply such as transform- ers, chokes and filters are smaller and lighter in weight than those used in ..."
See more references to Chokes, Filter in this book.
Storey's Basic Country Skills: A Practical Guide to Self-Reliance
John Storey and Martha Storey

Excerpt - page 81: "... 3. Forced warm air furnaces need to have their air filters cleaned or replaced at least twice each winter. A clogged filter chokes off the necessary breathing of the furnace and makes it ..."
See more references to Chokes, Filter in this book.
The Talbot Odyssey
Nelson DeMille

Excerpt - page 268: "... shields . . . cable shields . . . EMP filters and chokes . . . Systems to harden all their electrical and ..."
See more references to Chokes, Filter in this book.
The Circuit Designer's Companion, Second Edition
Tim Williams

Excerpt - Index: "... Saturation Synchronous switching noise 188 at op-amp output 150 in filter chokes 285 T in transistors 128 Tantalum capacitors 93 Schottky diodes ..."
See more references to Chokes, Filter in this book.
Old Time Radios! Restoration and Repair
Joseph J. Carr

Excerpt - page 190: "... Open line cord Open power-supply transformer primary or secondary Open filter choke, filter resistor (R1 in Fig. 10-1A), or speaker field coil ..."
See more references to Chokes, Filter in this book.
How to Test Almost Anything Electronic
Delton T. Horn

Excerpt - page 40: "... so you end up with about 350 Vdc at the filter input. Drawing the load current through the filter choke gives a small voltage drop, so you read about 335 ..."
See more references to Chokes, Filter in this book.
Physics Demystified : A Self-Teaching Guide (Demystified)
Stan Gibilisco

Excerpt - page 370: "... will you see an inductor this large, although some power-supply filter chokes have inductances up to several henrys. Usually inductances are expressed ..."
See more references to Chokes, Filter in this book.
HF Radio E-Mail for "Idi-Yachts"
Marti Brown

Excerpt - Index: "... In line fuse G 74 7- Ferrite beads. See RF chokes Filters, 500 Hz use of 96 Free signal 178 Sounds 44 ..."
See more references to Chokes, Filter in this book.
Security Engineering: A Guide to Building Dependable Distributed Systems
Ross J. Anderson and Ross Anderson

Excerpt - page 376: "... sites, multiple firewalls may be used. There may be a choke, or packet filter, connecting the outside world to a screened subnet, also known ..."
See more references to Chokes, Filter in this book.
Practical Variable Speed Drives and Power Electronics (Practical Professional Books from Elsevier)
Malcolm Barnes

Excerpt - page 136: "... into the earth and directed back to the source. The filter mainly comprises a low value series inductance (choke), similar to the choke above, and provides a high impedance ..."
See more references to Chokes, Filter in this book.
Evinrude/Johnson Outboard Shop Manual 48-235 Hp, 1973 1990 (Clymer Marine Repair Series)
Randy Stephens

Excerpt - page 184: "... 184 CHAPTER THREE pump, a clogged fuel filter or a choke/throttle valve that does not operate properly. Check ignition timing. A ..."
See more references to Chokes, Filter in this book.
Valve Amplifiers, Third Edition
Morgan Jones

Excerpt - page 350: "... or 9 VpMS. Assuming that we use a capacitor input filter (a choke would probably need to be custom wound), 6 x 12 ..."
See more references to Chokes, Filter in this book.
Foundations of Electronics: Circuits & Devices Conventional Flow
Russell L. Meade

Excerpt - page 487: "... applications, Figure 15-34. a. Tuning circuit applications b. Radio frequency chokes/filters c. Waveshaping applications (using LIR time constant characteristics) Typically, inductance ..."
See more references to Chokes, Filter in this book.
Materials Handbook (Handbook)
John A. Vaccari

Excerpt - page 733: "... the mask. Carbon and oil smokes may be used to choke the filters of gas masks and cause their removal. Absorbents used in ..."
See more references to Chokes, Filter in this book.
Switching Power Supply Design
Abraham I. Pressman

Excerpt - page 23: "... second winding with N2 turns is added to the output filter choke. Its output is peak-rectified with diode D2 and capacitor C2. ..."
See more references to Chokes, Filter in this book.
Evinrude Johnson Outboard Shop Manual: 2-40 Hp 1973-1990 (Includes Electric Motors) (Clymer Marine Repair Series)
Randy Stephens

Excerpt - page 67: "... in the fuel line or fuel pump, a clogged fuel filter or a choke/throttle valve that does not operate properly. Check ignition timing. A ..."
See more references to Chokes, Filter in this book.
The Guitar Amp Handbook: Understanding Amplifiers and Getting Great Sounds
Dave Hunter

Excerpt - page 93: "... four silicon diodes as full-wave bridge rectifier tour radial electrolytic filter capacitors choke 4a/4b/4c effects loop & connected circuitry (see text for more ..."
See more references to Chokes, Filter in this book.
Electric Motors and Control Techniques
Irving M. Gottlieb

Excerpt - page 126: "... nature of a motor as a load-a simple inductor or filter choke would behave in the same manner. The continued flow of ..."
See more references to Chokes, Filter in this book.
CISA: Certified Information Systems Auditor Study Guide
David L. Cannon, Timothy S. Bergmann, and Brady Pamplin

Excerpt - page 314: "... Firewall screened host Host Router FW P WWW Internet ACL filter computer (choke router) ..."
See more references to Chokes, Filter in this book.
Sea-Doo Water Vehicles Shop Manual 1988-1996 (Clymer Personal Watercraft)
Clymer Publications

Excerpt - page 109: "... in the fuel line or fuel pump, a clogged fuel filter or a choke/throttle valve that does not operate properly. Dynamically (engine running) check ..."
See more references to Chokes, Filter in this book.
Lighting Control: Technology and Applications
Robert Simpson

Excerpt - page 47: "... through the load. The lamp is shunted by an LC filter that ensures that high frequencies ... is to use the suppression choke as the secondary of the ignition transformer. A significant advantage ..."
See more references to Chokes, Filter in this book.
Vespa
Davide Mazzanti

Excerpt - page 77: "... was still a Dellorto T7, but with a redesigned air filter. The choke shutter valve for cold starting was located under the saddle. ..."
See more references to Chokes, Filter in this book.
Understanding Sonet/Sdh and Atm: Communications Networks for the Next Millennium
Stamatios V. Kartalopoulos

Excerpt - page 5: "... interference and noise, and in long loops and legacy systems chokes or filters had been placed to filter out the high-frequency content (above ..."
See more references to Chokes, Filter in this book.
Web Application Design Handbook: Best Practices for Web-Based Software (The Morgan Kaufmann Series in Interactive Technologies)
Susan Fowler and Victor Stanwick

Excerpt - page 175: "... is, it nevertheless has its dangers. For example, if a filter chokes down a list of trouble tickets too far, the operator ..."
See more references to Chokes, Filter in this book.
National Electrical Code 2002 Handbook (National Fire Protection Association//National Electrical Code Handbook)
NFPA

Excerpt - page 753: "... Television Studios, Performance Areas, and Similar Locations overcurrent protection and filter chokes to eliminate acoustic noise from the lamp filaments. The digital ..."
See more references to Chokes, Filter in this book.
Reliable Computer Systems: Design and Evaluation
Daniel P. Siewiorek and Robert S. Swarz

Excerpt - page 471: "... short circuit but reduces the noise current. wer Line Filter. Leakage inductance from the choke in the filter combines with capacitors to create a resonant ..."
See more references to Chokes, Filter in this book.
Teach Yourself Electricity and Electronics
Stan Gibilisco

Excerpt - page 185: "... see an inductor anywhere near this large, although some power-supply filter chokes have inductances up to several henrys. Usually, inductances are expressed ..."
See more references to Chokes, Filter in this book.
Microsoft Encyclopedia of Networking, Second Edition
Mitch Tulloch and Ingrid Tulloch

Excerpt - page 1079: "... unwanted electrical current, including avalanche diodes, metal oxide varistors, and chokes or filters. One of the best electrical protection methods, especially for copper ..."
See more references to Chokes, Filter in this book.
The Tube Amp Book
Aspen Pittman

Excerpt - page 131: "... circuit shown, a 10,000-ohm resistor (R2) is used as a filter choke, giving a fairly large voltage drop. The circuit indicates that ..."
See more references to Chokes, Filter in this book.
The Complete Corvette Restoration and Technical Guide, Vol. 2: 1963 Through 1967
Noland Adams

Excerpt - page 263: "... on the base engine did not include an external fuel filter. The choke lines on base and L75 engines were steel with a ..."
See more references to Chokes, Filter in this book.
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