background preloader

Audio, radio, sensors, digital electronics...

Audio, radio, sensors, digital electronics...
Related:  Electronic Circuitsvillany

Electronics I & II Analog Devices is as passionate about educating the next generation of young circuit design engineers as it is about pioneering the next technological breakthrough. The University Program is a platform where Analog Devices, working with leading educational institutions has created and deployed new hands on learning tools for the next generation of analog circuit design engineers. The University Program brings the analog signal processing technology the company has developed to the academic community in a way that is open and accessible to faculty and students in the form of analog design kits and analog components, online and downloadable software and teaching materials, online support, textbooks, reference designs and lab projects to enrich students’ education about analog circuits and their application to core engineering and physical science curricula. Table of Content:Preface: Lab Activity Material Outline Electronics I and II Related supplemental Mini-Tutorials and eBooks

Lessons In Electric Circuits A free series of textbooks on the subjects of electricity and electronics Copyright (C) 2000-2015, Tony R. Kuphaldt These books and all related files are published under the terms and conditions of the Design Science License. A copy of the Design Science License is included at the end of each book volume. As an open and collaboratively developed text, this book is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Access individual volumes, I through VI: Edition numbers reflect major structural changes to a book volume such as the addition of new chapters, the substantial expansion of existing chapters, or a change in markup language (source code formatting). "Last revised" dates reflect non-trivial changes only. Click here for a detailed changelog of all books. Note to instructors: Interested in contributing to this project? News flashes (Reverse chronologic order) All volumes!

77 Brain Hacks to Learn Faster, Deeper, and Better Source: Online Education Database If someone granted you one wish, what do you imagine you would want out of life that you haven't gotten yet? For many people, it would be self-improvement and knowledge. New knowledge is the backbone of society's progress. Great thinkers such as Leonardo da Vinci, Thomas Edison, Benjamin Franklin, Albert Einstein, and others' quests for knowledge have led society to many of the marvels we enjoy today. Your quest for knowledge doesn't have to be as Earth-changing as Einstein's, but it can be an important part of your life, leading to a new job, better pay, a new hobby, or simply knowledge for knowledge's sake — whatever is important to you as an end goal. Life-changing knowledge does typically require advanced learning techniques. Here are 77 tips related to knowledge and learning to help you on your quest. 1. 2. 4. 5. Balance 6. 7. 8. 9. 10. 11. 12. 13. 14. Recall Techniques 15. 16. 17. Visual Aids 18. 19. 20. 21. 22. Verbal and Auditory Techniques 24. 25.

50 of the World’s Best Breakfasts from Around the World – Written by Victoria Philpott Not quite had your fill of breakfasts just yet? Check out our beautifully visual list of the 30 best breakfasts from around the world. Salivating. If you’ve got a tasty recipe for a breakfast you’ve made in a hostel kitchen, let us know. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. 44. 45. 46. 47. 48. 49. 50. Phew, and that’s it! Follow me on Twitter @VickyFlipFlop and let me know what you think of them all… And if I’ve inspired you to travel the world to sample them, remember you can always book your cheap hotels with us at Thanks to everyone for the images from Flickr. Related posts

The Basics of USB Battery Charging: A Survival Guide Table of contentsIntroductionAn Array of Power SourcesDetecting the Source TypeUSB Connection TerminologyPort Detecting and Self-Enumerating ChargerAdding Port DetectionOther Charge StrategiesUSB 3.0"Cheating"—Noncompliant USB ChargingWrap Up Introduction USB has become as much a standard for connecting power to portable devices as it has for serial communication. Recently the power aspects of USB have been extended to cover battery charging as well as AC adapters and other power sources. A tangible benefit of this wide-spread use is the emergence of interchangeable plugs and adapters for charging and powering portable devices. Arguably the most useful benefit of USB's power capabilities is the ability to charge batteries in portable devices. Charging batteries with USB requires balancing battery "care and feeding" with the power limitations of USB and the size and cost barriers ever present in portable consumer device designs. An Array of Power Sources Detecting the Source Type Figure 1.

Circuit Simulator Applet This java applet is an electronic circuit simulator. When the applet starts up you will see an animated schematic of a simple LRC circuit. The green color indicates positive voltage. The gray color indicates ground. To turn a switch on or off, just click on it. The "Circuits" menu contains a lot of sample circuits for you to try. If you don't have Java, get the Java plug-in. Directions. Index of Circuit Examples. More applets. Zip archive of this applet. The source. Version 1.6d, posted 4/9/14 Thanks to Edward Calver for 10 new components and other improvements.

5 Ways To Hack Your Brain Into Awesomeness Much of the brain is still mysterious to modern science, possibly because modern science itself is using brains to analyze it. There are probably secrets the brain simply doesn't want us to know. But by no means should that stop us from tinkering around in there, using somewhat questionable and possibly dangerous techniques to make our brains do what we want. We can't vouch for any of these, either their effectiveness or safety. #5. So you just picked up the night shift at your local McDonald's, you have class every morning at 8am and you have no idea how you're going to make it through the day without looking like a guy straight out of Dawn of the Dead, minus the blood... hopefully. "SLEEEEEEEEEP... uh... What if we told you there was a way to sleep for little more than two hours a day, and still feel more refreshed than taking a 12-hour siesta on a bed made entirely out of baby kitten fur? Holy Shit! We're pretty sure Kramer did this once on Seinfeld. How Does It Work? #4. #3. 1. 2. 3.

Logic Signal Voltage Levels : Logic Gates Logic gate circuits are designed to input and output only two types of signals: “high” (1) and “low” (0), as represented by a variable voltage: full power supply voltage for a “high” state and zero voltage for a “low” state. In a perfect world, all logic circuit signals would exist at these extreme voltage limits, and never deviate from them (i.e., less than full voltage for a “high,” or more than zero voltage for a “low”). However, in reality, logic signal voltage levels rarely attain these perfect limits due to stray voltage drops in the transistor circuitry, and so we must understand the signal level limitations of gate circuits as they try to interpret signal voltages lying somewhere between full supply voltage and zero. TTL gates operate on a nominal power supply voltage of 5 volts, +/- 0.25 volts. If a voltage signal ranging between 0.8 volts and 2 volts were to be sent into the input of a TTL gate, there would be no certain response from the gate.

Radial Air core alternator Radial Air core alternator Fun! These are simple radial air core alternators that anyone with a drill and jig saw can build. Below are the basic parts for a single magnet 3 phase alternator... 2 plastic triangles sized to match the width of the magnet your using, 1 magnet, some small wooden dowl, 2 1/4" round steel stock ( cut bolts work well ), and some 1/4" bar stock that closely matches the thickness and width of the magnet your using. Also, some copper magnet wire for the coils. Below shows the basic frame assembled... Next you'll wind 3 coils that will fit around the frame... I used 100 turns of #28 wire as an experiment and it worked pretty well but you can adjust the amount of turns you want based on the voltage you need. Lay the 3 coils over the triangles and tape the coils together. Below is a picture of the completed unit... It easily lights LED's as well has the ability to charge nicad batteries... give it a spin ! Want more? Here is a shot of the parts you'll need to make...

Powerful Pictures Three sisters pose for photographs taken years apart. A Russian war veteran visits the tank that he fought in which has been preserved as a monument. A child gives a gift to riot police in Bucharest. Retired Police Chief Captain Ray Lewis is arrested at an Occupy Wall Street protest. A monk prays over the body of an elderly stranger who died suddenly while waiting on a train in China. A dog named Leao keeps watch by the the grave of his owner who was killed in a landslide in Rio de Janeiro. Tommie Smith and John Carlos raise their fists in a gesture of solidarity at the 1968 Olympic games. John F. Christians protect Muslims during the 2011 Cairo uprisings. A North Korean man waves his hand as a South Korean relative weeps, following a luncheon meeting during inter-Korean temporary family reunions at Mount Kumgang resort October 31, 2010. A dog is reunited with his master after the 2011 Japanese Tsunami. A mother comforts her son following the 2011 tornado in Concord, Alabama.

What’s The Difference Between HBM, CDM, And MM Test? | Power content from Electronic Design Electrostatic discharge (ESD) and electrostatic overstress (EOS) events can happen anywhere such as fabrication and assembly process areas, production testing environments, transportation, and field applications. (See “Understanding ESD And EOS Failures In Semiconductor Devices”). EOS and ESD may be caused by the user’s application due to a transient, excessive supply current, poor grounding, low resistance path between supply voltage and ground, shorted pins, and internal damage of the circuit. The IC may eventually fail if it’s exposed to conditions beyond the datasheet specifications. ESD Test Models Semiconductor devices include ESD protection circuitry. HBM simulates ESD due to discharge from human beings. Human Body Model When people walk, they generate some electricity and discharge it to ground. ΔV/Δt = n Δq/C where n is the number of steps/second and C is the person’s capacitance. For HBM tests, there is a simple series RC network to simulate the discharge from a human body. and:

Download Center Download Center - EEP (Learning center for electrical engineers) Welcome to EEP’s Download Center! There are three main sections which covers electrical books & guides, software & tools and design documentation. Feel free to explore our great recourses, and if you have any suggestions or complaints please contact us. EEP’s Download Center provides greatest resource for education and learning in field of electricity science. All documents are completely free to download. Books & Guides Electric power books are divided into few sections, so it is easy for power engineers to find appropriate book, guide or information related to power engineering, automation, industry etc. - Electrical Eng. Explore section Software & Tools Electrical design without appropriate software and tools is impossible to imagine. - CalcuLuX Area - DIALux - Relux - Ecodial - Visual Design Docs Almost every electrical design project has some documents repeating from one to another project with some modifications.

Gifts For Geeks