Using existing triac controllers and wiring offers a number of challenges for LED lighting. To maximize the success and adoption of solid-state lighting for retrofit lamps, the LED lamps should be capable of dimming when used with existing controllers and wiring. Lighting designs with flicker-free LED dimming article explores the typical TRIAC dimmer, some of →
Power-supply circuit operates from USB port article mentions some useful points on using USB connector as power source as well as gives an useful circuit diagram. You can use a USB port to power an external circuit. Even one without any USB functionality in it. Every PC has a USB (Universal Serial Bus) port that →
Toolduino is a simple software tool that lets you easily interact with Arduino hardware. With this software you can easily can test the circuits you create. The Arduino must be running the Firmata firmware that comes with the Arduino IDE. Things can’t get much easier for all kinds of hacks. You can just connect some →
Troubleshooting grounding problems can be difficult at best. Especially on complex automation/instrumentation systems. Use your power system drawing or a system map to document as you go because these problems can be quite complex requiring some logic to figure out. The typical utility DC bus consists of a battery charger, a string of batteries, a →
The DJ mixer crossfader was originally developed as a control for implementing smooth fades from one program source to another, but where did the idea come from? Evolution of the DJ Crossfader article tells the history and development of crossfader in DJ mixers. →
Info PR: n/a I: 14,100 L: 0 LD: 23,965 I: 14,800 Rank: 80410 Age: Mar 01, 2000 I: 0 whois source Robo: yes Sitemap: no Rank: 28845 Price: 13397 Links: 86|8 Density Apple and Intel unveil Thunderbolt I/O technology today. After years of waiting Apple has launched its implementation of Intel’s Light Peak standard and →
You need a certain inductance and looking for the corresponding number of turns, but don’t have the equations on hand or do not have all the data on the cores you have. What do you do? The answer is to use Mini Ring Core Calculator software. It can do calculations for all kinds of inductors →
Electronics Demonstrations page has demonstrations that use a Java applet that simulates electronic circuits. This is a pretty nice simple electronics circuit simulator that shows you clearly what happens on different electronics circuits. The movement of yellow dots indicates current flowing on the circuit. Check the demonstrations on the Electronics Demonstrations page and check also →
EEVblog #106 – Top 5 Tips To Bring Your Product to Market is an interesting video to look at. It tells that releasing your design open source, and selling kits or pre-build boards sounds like a really good way to avoid the hassle of trying to sell my idea to other businesses. Patents don’t stop →
The 555 Timer IC is an integrated circuit (chip) implementing a variety of timer and multivibrator applications introduced in 1971. The 555 part is still in wide use, thanks to its ease of use, low price and good stability. 555 Contest claims to be biggest, newest, most-independently conceived 555 timer design contest the world has →