background preloader

Basic Electronics Tutorials and Revision

Basic Electronics Tutorials and Revision
Related:  Electronics 1Util

Welcome Basic Electronics {*style:<b> Get a quick start by scrolling down to the introduction below this menu table. Basic Electronics - Course Table You are at the best, free online "Basic Electronics Course". {*style:<b><b>Maybe you already know some basic electronics and want to test yourself to see exactly how much you do know. </b></b>*} {*style:<b>Explanation of AC and DC currents. </b>*} {*style:<b><b><b> P - I*V </b></b></b>*} {*style:<b>Watch the video . If you don't have a clue as to what electrical current and voltage are - read on. DC Theory Part 1 - DC Theory part 2 {*style:<b> </b>*} More book recommendations. There is another (and less expensive and practical) method of learning basic electronics. It is hands-on by doing simple projects. Get the MAKE: Electronics (Learn By Discovery) book below. You will also need some electronic parts available from Radio Shack or a good junk box. {*style:<b><b>Combined resistance of two resistors in parallel: </b></b>*} <b><b>Black </b></b> <b><b>Brown </b></b> <b><b>Red </b></b>

Analog To Digital (A/D) Converters Analog to Digital Converters (A/Ds) What Are They? Some Properties Of A/D Converters Where Do You Use A/Ds? You are at: Bits&Bytes - Interface Circuits - Analog To Digital Converters (A/Ds)Return to Table of Contents A/D Converters Analog-to-Digital converters - a.k.a. If you're going to take measurements - and just about every engineer will do a lot of that - then you will be better off if you understand some of the basic ideas behind A/D converters. Given an A/D converter with a given range and number of bits, To be able to calculate the resolution of the converter. Given an A/D converter in the laboratory, To be able to determine the resolution of the converter and the number of bits used in the converter. What Are A/D Converters? A/D converters are electrical circuits that have the following characteristics. The input to the A/D converter is a voltage. Comparator Simulator Sim1 Here is the comparator simulator. The input can range from zero (0) to ten (10) volts.

Control of floods | Online references Floods 'under control' - The Nation Floods 'under control'. Plodprasop says media coverage is causing undue panic; industrial estate operators remain confident; flooding hits 20 provinces www.nationmultimedia.com/national/Floods-under-control-30215522.html Dredging Today – Thailand: Flood Control Asia 2013 Begins Tomorrow Thailand will host Flood Control Asia 2013, Asia’s first Flood Control and Protection Technology Exhibition on 29 - 31 October 2013 at BITEC, Bangkok. www.dredgingtoday.com/2013/10/28/thailand-flood-control-asia-2013-begins-tomorrow/ Water | Free Full-Text | An Ecological Flood Control System in Phoenix Island of Huzhou, China: A Case Study Traditional flood control systems always have a conflict with natural ones, i.e., rivers in cities are usually straight and smooth, whereas natural ones are according to ecological mechanisms.

Working With Three-Phase Power: Introduction to Electricity Signal Consulting, Inc. - Dr. Howard Johnson The Integrated Circuit Lists of Nobel Prizes and Laureates The Integrated Circuit Play the Techville Game About the game Integrated circuits, also called "chips", are electronic circuits where all the components (transistors, diodes, resistors and capacitors) has been manufactured in the surface of a thin substrate of semiconductor material. Read More » The Nobel Prize The 2000 Nobel Prize in Physics was awarded for the invention of the integrated circuit. Reading The History of the Integrated Circuit » Share this: Share on facebook Share on google_plusone_share Share on twitter More Sharing Services5 Share on email To cite this pageMLA style: "The Integrated Circuit". Recommended: The Legacy of Alfred Nobel On 27 November 1895 Alfred Nobel signed his last will in Paris. Play the Blood Typing Game Try to save some patients and learn about human blood types! Unlocking the Secrets of Our Cells Discover the 2012 awarded research on stem cells and cell signalling. Contact E-mail us Press Sitemap A-Z Index Frequently Asked Questions

Measuring Loudspeaker Driver Parameters Rod Elliott - ESPUpdated May 2014 Articles Index Main Index Measuring Thiele / Small Loudspeaker Parameters There are several different ways to measure the Thiele/Small parameters of a loudspeaker driver. The method described here provides a way for the beginner and DIY enthusiast to measure the parameters without any expensive or specialised equipment. Definitions: Measuring Re, Fs, Qes, Qms and Qts To measure these parameters using the method outlined below, you'll need to have the following items: A power amplifier, rated at 1-10 Watts (RMS) or thereabouts Audio frequency oscillator (PC based is fine) Digital multimeter (with frequency measurement), or PC based instrument An accurate test resistor (any value, although I suggest 10 ohms) A ½W component will be quite sufficient. Figure 1 shows a typical impedance curve for a loudspeaker (see Figure 5 for the equivalent circuit of this speaker, which was simulated for this article). At resonance, the speaker impedance is pure resistance.

Honest Logos by Victor Hertz Victor Hertz just recently had a great success with his clever Pic­togram Movie Posters. And now Victor has pumped out Pfizer mexico viagra this hilar­i­ous set called Hon­est Logos which he describes as “reveal­ing the actual con­tent of the com­pany or what they really should be called.” Victor Hertz is a freelance photographer and graphic designer, based in Stockholm, Sweden. Via Design You Trust zp8497586rq Chapter 10: Computers and Electronics -- Build a simple 1 watt audio amplifier A simple 1 watt audio amplifier The solderless breadboard makes it easy to experiment with additions to the radio circuit. In this section, we will build a simple amplifier, so that a whole room can hear the radio through a speaker. Our amplifier will not be ear shattering, since we have made it as simple as we can to build, but the output is pretty impressive for a single transistor. Click on photo for a larger picture With the amplifier, our radio looks like the photo above. Below is a closeup of the amplifier section: We carry all the parts for the amplifier (except the battery) in our catalog. The amplifier needs these parts: An MPSW45A Darlington transistor This is the main working part of the amplifier. Using the labeled grid as before, the parts are connected this way: A more permanent version As before, we can copy the circuit onto a printed circuit board and solder all of the parts firmly in place. How does it do that? The heart of the amplifier is the transistor. Del.icio.us Google

The Transistor Lists of Nobel Prizes and Laureates The Transistor Play the Transistor Recycler Game About the game A transistor is made of a solid piece of a semiconductor material and either used as switches, to turn electronic signals on or off – or, as amplifiers. The Nobel Prize The 1956 Nobel Prize in Physics was awarded for the invention of the transistor. Readings Learn about how a transistor functions and try build a replica The Transistor in a Century of Electronics Share this: Share on facebook Share on google_plusone_share Share on twitter More Sharing Services7 Share on email To cite this pageMLA style: "The Transistor". Recommended: The Legacy of Alfred Nobel On 27 November 1895 Alfred Nobel signed his last will in Paris. Play the Blood Typing Game Try to save some patients and learn about human blood types! Unlocking the Secrets of Our Cells Discover the 2012 awarded research on stem cells and cell signalling. Contact E-mail us Press Sitemap A-Z Index Frequently Asked Questions Terms Follow Follow us: Facebook

A Breakout Board for the ESP8266-03 | Hackaday In the last few weeks we have been seeing a lot of ESP8266 based projects. Given this WiFi module is only $3 on Ebay it surely makes sense using it as an Internet of Things (IoT) platform. To facilitate their prototyping stage I designed a breakout board for it. The board shown above includes a 3.3V 1A LDO, a genuine FT230x USB to UART adapter, a button to make the ESP8266 jump into its bootloader mode and a header where you can find all the soldered-on-board module IOs. One resistor can be removed to allow 3.3V current measurement, another can be populated to let the FT230X start the bootloader jumping procedure. Body Language By a man’s fingernails, by his coat-sleeve, by his boots, by his trouser-knees, by the calluses of his forefinger and thumb, by his expression, by his shirt-cuffs, by his movements – by each of these things a man’s calling is plainly revealed. That all united should fail to enlighten the competent enquirer in any case is almost inconceivable / Sherlock Holmes, 1892. The aim of this exhibition is — to become aware of ourselves and of the people around us. Not claiming any in-depth analysis, and hoping that you will take a moment to think about it. It seemed amazing to us that we can try to better understand ourselves or others. Source: wondersbook.wordpress.com Copyright © wondersbook.wordpress.com .

Related:  ComputersEnglish sources