electronics

the branch of physics that deals with the emission and effects of electrons and with the use of electronic devices

The field of electronics is the study and use of systems that operate by controlling the flow of electrons or other electric chargeelectrically charged particles in devices such as thermionic valves and semiconductors. The design and construction of electronic circuits to solve practical problems is part of the fields of electronic engineering, and the hardware design side of computer engineering.The study of new semiconductor devices and their technology is sometimes considered as a branch of physics.

Electronic devices today - Electronics performs a wide variety of tasks.The main uses of electronic circuits are the controlling, processing and distribution of information, and the conversion and distribution of electric power. Both of these uses involve the creation or detection of electromagnetic fields and electric currents. While electrical energy had been used for some time to transmit data over Telegraphytelegraphs and Telephonetelephones, the development of electronics truly began in earnest with the advent of radio.

CAD/ CAM of electronic circuits - Todays electronics engineers enjoy the ability to design circuits using premanufactured building blocks such as power supplypower supplies, resistors, capacitors, semiconductors such as transistors, and integrated circuits. Electronic design automation software programs include schematic capture programs such as ORCAD , used to make circuit diagrams and printed circuit board layouts.

Electronic systems - One way of looking at an electronic system is to divide it into the following parts:# Inputs – Electronic or mechanical sensors (or transducers), which take signals (in the form of temperature, pressure, etc.) from the physical world and convert them into current/voltage signals.# Signal processing circuits – These consist of electronic components connected together to manipulate, interpret and transform the signals.# Outputs – Actuators or other devices (also transducers) that transform current/voltage signals back into useful physical form.One example is a television set. Its input is a broadcast signal received by an antenna or fed in through a cable. Signal processing circuits inside the television extract the brightness, colour and sound information from this signal. The output devices are a cathode ray tube that converts electronic signals into a visible on a screen and magnet driven audio speakers.

Electronic test equipment -

Ammeter, e.g. Galvanometer (Measure current (electricity)current)

Ohmmeter, e.g. Wheatstone bridge (Measure electrical resistanceresistance)

Voltmeter (Measures voltage)

Multimeter (Measures all of the above)

Oscilloscope (Measures all of the above,except Ohm, as they change over time)

Logic analyzer (Tests digital circuits)

Spectrum analyzer (SA) (Measures spectral energy of signals)

Vector signal analyzer (VSA) (Like the SA but it can also perform many more useful digital demodulation functions)

Electrometer (Measures electric chargecharge)

Frequency counter (Measures frequency)

Time-domain reflectometer for testing integrity of long cables

Electronic components -

Electronic components

Circuit DesignElectronic Devices and Circuits

Analog circuits - Most analog signalanalog electronic appliances, such as radio receivers, are constructed from arrays of a few types of circuits.

Analog computer

Analog multipliers

electronic amplifiers

electronic filters

electronic oscillators

Phase-locked loops

electronic mixers

Power conversion

Electronic Power Supply

impedance matchers

operational amplifiers

comparators

Digital circuits - Computers, electronic quartz clockclocks, and programmable logic controllers (used to control industrial processes) are constructed of digital circuits. Digital Signal Processors are another example.Building-blocks:

logic gates

flip-flop (electronics)flip-flops

counters

processor registerregisters

multiplexers

Schmitt triggersHighly integrated devices:

microprocessors

microcontrollers

Digital signal processorDSP

FPGA Field Programmable Gate Array

Mixed-signal circuits - Mixed-signal circuits, also known as hybrid circuits, are becoming increasingly common. Mixed circuits contain both analog and digital components. analog to digital converters and digital to analog converters are the primary examples. Other examples are transmission gates and buffers.

Heat dissipation - Heat generated by electronic circuitry must be dissipated to improve reliability. Techniques for ''heat dissipation'' can include heatsinks and fan (implement)fans for air cooling, and other forms of computer cooling such as liquid cooling for computers .

Noise - Associated with all electronic circuits is noise. Types of noise include

Shot noise in resistors.

Johnson-Nyquist noise (Thermal noise) in resistors.

White noise

1/f noise (pink noise, or flicker noise)

Gaussian noise

Electronics theory -

Mathematical methods in electronics

Digital circuits

Analog electronics

See also -

Electrical engineering

*Circuit DesignElectronic Devices and Circuits

*Integrated circuit

*Optoelectronics

*Point-to-point construction

*Printed circuit board

*Semiconductor

*Semiconductor device

*transducer

*Wire wrap

*Cordwood construction

*Signal theory

Circuit diagram

Computer engineering

*Microelectronics

Datasheet

Mechatronics

Electronics manufacturing

List of electronics topics

E-waste

Fuzzy electronics

External links - Wikibooks

Tutorials and projects -

electronicsinfoline.com - Electronics Infoline Directory for electronics projects.

opamp-electronics.com - Basic Electronic Tutorials On DC, AC, Semiconductor and Digital Theory Extensive free tutorial material and store.

electronics-tutorials.com - Electronics tutorials Modest site, mostly focused on radio electronics, awkward layout.

Williamson Labs' williamson-labs.com - Electronics tutorial

Ian Purdie's my.integritynet.com.au - Electronics tutorials

Iguana Labs' iguanalabs.com - Electronics Tutorials and Kits

electronicdefinitions.com - Electronic Meanings and Acronyms

ibiblio.org - Lessons in Electric Circuits – A free series of textbooks on the subjects of electricity and electronics.

radio-electronics.com - Radio-Electronics.Com Free information and resources covering radio and electronics

electronicschat.org - A hobbyist wiki

falstad.com - Circuit simulator with voltage and current visualization

allaboutcircuits.com - A comprehensive guide to making integrated circuits

!hyperphysics.phy-astr.gsu.edu< /a> - HyperPhysics

talkingelectronics.com - "Talking Electronics" Great for amateurs, commercial kits.

electronics.esolberg.com - Electronic parts libary

work-readyelectronics.org - Work Ready Electronics Free instructional online course materials for Community College Electronics Instructors and Students.

Some other good sites -

ieee.org - IEEE

spectrum.ieee.org - IEEE spectrum

elexp.com - Electronix Express

electronics-related.com - Electronics Discussions Web access to electronics related newsgroups.Technology !Category:ElectronicsCategory:E lectronic? engineeringaf:Elektroniese !ingenieurswesean:Eleutronicabg :Електроникаbn:ই� ��েকট্রনিক্� ��ca:Electrònicada:Elektronik de:Elektroniket:Elektroonikael :Ηλεκτρονικήes:Elec trónicaeo:Elektrotekniko? kaj !Elektronikofr:Électroniquefy: Elektroanikagl:Electrónicako: 전자공학hr:Elektronikaio:E lektronikoid:Elektronikais:Raf eindatækniit:Elettronicahe:א לקטרוניקהla:Electroni calt:Elektronikahu:Elektronika ms:Elektroniknl:Elektronicands :Elektronikja:電子工学no:E lektronikknn:Elektronikkpl:Ele ktronikapt:Eletrônicaru:Эл� �ктроникаscn:Alittròn icasimple:Electronicssl:Elektr onikasr:Електроника fi:Elektroniikkasv:Elektronikt h:อิเล็กทรอ� ��ิกส์vi:Điện? tử họczh:电子学

Modified GearBox of SCHLAFHORST Autoconer's 338 Model
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The Website of Edward Blake Associates, Inc.
Edward Blake Associates has been representing quality electronic components and subsystems since 1971. We are a customer service driven firm and welcome your inquiries.
http://www.ebacal.com/

STB software design house
Turn key software solutions developer for STB, DVB, DVD, DVR and related digital consumer products
http://www.highgate.tv/

Massage chair, TV, Consumer Electronics & Appliances
Our Prices ( Price + shipping ) are the best, If you got the lower price email us the detail and we will match it or beat it.
http://www.mypriceelectronics.com/

Teralab
This site is an attempt to document some of the physics experiments and science projects which I have conducted in my laboratory at home. These experiments include high vacuum, electron optics and electrostatics. There is also a virtual museum of scientific instruments, antique lamps and antique valves.
http://www.teralab.org/

Carl's Electronics
Hundreds of products for electronics, robotics, and spy and surveillance. Electronic kits, circuits, plans, robotic kits and more. On the web for 10 years and counting.
http://www.electronickits.com/

Sciencelabs.com
We provide science kits and equipment to schools, home schools and others. We carry most major educational brands including our own. Some of our brands include Kemtec, NEoSci, Lab-Aids, Ken-A-Vision, Digital Frog, Uncle Milton, Thames and Kosmos, Smithsonian, National Geographic and many more.
http://www.sciencelabs.com/

Garmin GPS
Offers Magellan and Garmin GPS, fish finder, weather stations and marine electronics.
http://www.lakepowelldiscountmarineelectronics.com/garmingps.html

The ELEK'TROLLS
Characters made from electronics components of height to feefteen centimeters tall original and futuristic
http://www.elek-trolls.com/

Super Eagle Supply
Ecommerce retailer of office supplies, furnishings, computer hardware
http://www.supereaglesupply.com/

Arizona Calibration & Electronics
Third party calibration lab
http://www.arizcal.com/

Creative Electronics and Automation
Soource of Factory automation service and products.
http://www.crestpak.com/

Automated Plating Equipment, New & Used
Automated, programmable rack, barrel and basket lines for plating, anodizing, with highly flexible controls, precision switchmode power supplies, project management
http://www.usedplatingequipment.com/

H. J. Wendt - Homepage - Innovation - Patents - Engineering
Free informations and news about innovation, patents, engineering, new technologies, new transports systems, micro electronics, aerospace and future trends.
http://www.promot.org

Boating Videos,Fishing Videos,Hunting Videos
Boating, Fishing, Hunting, Military History, Athletes/Coaches, GPS and Radar Videos. DVDs & VHS. Everything Outdoors with over 1000 Titles of “How to” videos to choose from at great prices!
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C-Tech Associates, Inc.
Developer and manufacturer of certified training programs, providing educators and students around the nation with the finest technology education track available.
http://www.c-techtraining.com/

Big Picture Big Sound
Site dedicated to film and home theater. Includes movies reviews, dvd reviews, home theater news, reviews, deals and show reports.
http://www.bigpicturebigsound.com

www.theinternetruler.com
DIGITAL CAMERAS, ELECTRONICS, MP3 PLAYER AT WHOLESALE PRICES!
http://www.theinternetruler.com/

Guitar Nucleus
Guitar & Amp Links and educational information. Serial numbers, schematics, parts and supplies.
http://www.guitarnucleus.com/

Lowell/Edwards Home Theater Electronics and Custom Cabinetry
Located in New York Cities renowed Decoration and Design Building is Lowell/Edwards. The formost manufacturer of custom entertainment center cabinetry. Specializing in pop up TV lift cabinets for Plasma TVs. We make true custom furnitre in any style, material and finish. For our local clients we perform intensivly designed home theater and multiroom sound systems. With high performance and automated operation.
http://www.lowelledwards.com/

CRETAN ELECTRONICS
LONG RANGE CORDLESS TELEPHONES 40 DIFFERENT MODELS WITH RANGE 1-100 KM AND MORE . TRANSFER THE TELEPHONE LINE FROM A BASE STATION TO 90 DIFFERENT REMOTE STATIONS , WITH FULL DUBLEX INTERCOM FROM REMOTE TO REMOTE STATIONS WITH THE BASE REPEATER . MODELS, BASE WITH HANDSETS 90 MAXIMUM FOR EVERY BASE UNIT AND MODELS BASE TO BASE . ANY INFORMATION info@cretanel.gr
http://www.cretanel.gr/

HVguy.com
Aron and Justin's physics website...with some rock climbing, Texas wildlife, and backyard chemistry.
http://www.hvguy.com/

Guy Buys
Guy Buys is committed to offering top quality merchandise for men. We carry over 20,000 guy approved items, including sporting goods, collectibles, electronics, dvds, and video games. Guy Buys is owned and operated by consulting.com, Inc., which has been successfully operating online since 1998
http://www.GuyBuys.com

WorldWide Tech Solutions Asia
International trading company specializing in contract manufacturing, energy, safety, environmental, and health technologies and products.
http://www.wwtsasia.com/

Steiger-Electronics
Apple Center Innsbruck Austria Telekom-Austria-Partner
http://www.steigermedia.com/

EileensEshop
Looking for a gift that will be teasured for a lifetime? Gifts and home decor for discerning buyers.
http://www.eileenseshop.com

People Counters
Manufacturers of People Counters, Bicycle Counters, Car Counters and multi-category counters. We also manufacture Water Level Data Logger Systems and Location Marking Systems. We specialise in Electronic Design and Computer Controlled Systems.
http://www.chambers-electronics.com/

Waveland International - Stragegic Partners in Executive Staffing
Waveland International was founded in 1996 with the underlying belief that, as consultants to management, our business must be as dynamic and responsive to change initiatives as the clients and industries we serve. With that thought in mind, we approach our client relationships in the true spirit of strategic partnership. We believe that the executive search industry must transform itself from a transaction-based business to a more expansive, relationship-driven enterprise.
http://www.wavelandsearch.com/

TUXMAN The Linux Fan Shop
We have Linux Fan stuff and a lot of PC Hard and Software. Here you can get a lot of Linux distribution. Our store is located in Berlin/Germany.
http://www.tuxman.de/

The Scale Model Airplane Collector!
The Scale Model Airplane Collector! is designed to be the only collecting software program you will ever need to catalog and collect any type scale model airplane.
http://www.collectiblessoftware.com/TSMAC.html

Custom Cable Assembly Manufacturer, Wire Harness Manufacturer
E.D. Products Limited operates a fully-automated facility capable of low, medium and high volume runs for a diverse range of products including electrical wire harnesses, battery and power cable assemblies, multi-conductor cables, passive component-to-wire applications, switch-to-wire applications, fibre optics, printed circuit board assemblies, as well as control and panel wiring assemblies. Stringent quality control ensures all terminations are checked for pull test and crimp height. All harness and cable assemblies are produced on electronic harness boards and checked with cable scanners for 100 percent continuity and point-to-point.
http://www.edproducts.com/

Samshop
The firm Internet-shop of production Samsung in Russia.
http://www.samshop.ru/

Owner
Free online auction site
http://www.traderbait.com

RHAS
Valuers and brokers of plant, machinery and equipment and all personal assets
http://www.rhas.biz/

Homepage of Christian Strahberger
Information source on various topics ranging from natural sciences to wine
http://www.strahberger.de/

Shop Now Canada
Shopnowcanada.com is a directory of Canadian companies. Shopnowcanada.com can save you time and money! Shop local stores in Canada. Compare prices, print coupons, find directions and buy online from stores and shops in your community.
http://www.shopnowcanada.com/

Reliability needed? HALT and go FISHing.
A weakness of Reliability Engineering methodology used by Six Sigma and ISO-9001 in their DFR, DFSS and DMADV or DMAOV initiatives is they focus on robust devices and modules, but miss FISHing. Amemco developed and has improve FISHing (functional interface stress hardening) techniques over the past 26 years and will help you focus where failures flurish. When a system is assembled and sent into the field, most malfunctions, failures and downtime occurs because of these 'interfaces', the junctions where components interface; with each other, with power, with I/O, with the environment, etc... The best way to Reliability is HALT and go FISHing. Take a FISHing expert with you.
http://www.amemco.net/

BioDigital - Electronics Design House
BioDigital is a small electronics design house. We specialise in all forms of industrial and retail electronics design. We quote up-front (both duration and cost) and all IP is handed over on completion.
http://biodigital.co.uk/

Sony.com
Features information about Sony's products, along with music, video game, and movie information.
http://www.sony.com/

Institute of Electrical and Electronics Engineers (IEEE)
Comprehensive source of information about the organization for students and professionals in technical areas ranging from computer engineering, biomedical technology and telecommunications, to electric power, aerospace and consumer electronics.
http://www.ieee.org/

Royal Philips Electronics
Official site, with news, company profile, consumer products, and professional products.
http://www.philips.com/

Samsung
Detailed corporate information from history and philosophy to future vision.
http://www.samsung.com/

Mouser Electronics Inc.
Distributor of electronic components.
http://www.mouser.com/

All Electronics
Buys and sells electronic and electro-mechanical parts and supplies.
http://www.allcorp.com/