uncleflo
Registered since September 28th, 2017
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Dynamo LED Light Systems for Bicycles (electronic circuits)
Saved by uncleflo on June 28th, 2011.
LED light systems offer exceptional reliability and superior light yield vs standard bicycle light systems. This is an evolutionary tutorial on how to power such systems from a dynamo. As you read, you will come across a variety of circuits that can be built at home. The following projects heavily use power LEDs. They are typically made by manufacturers such as Philips-Lumileds, Cree, Seoul Semiconductor. At the time of writing, these LEDs are subject of rapid improvement. In 6 months from now, a new model of power LED will probably make todays most advanced LEDs look dim. There could even be new manufacturers pushing on the market with superiour LEDs. Due to this, I never recommend any specific part number for the LEDs. The driver circuits are not affected by the type of LED used, as long as it has the typical forward voltage of a white LED.
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Circuits and Electronics | MIT Video Course
Saved by uncleflo on July 7th, 2010.
This course is designed to serve as a first course in an undergraduate electrical engineering (EE), or electrical engineering and computer science (EECS) curriculum.
The course introduces the fundamentals of the lumped circuit abstraction. Topics covered include: resistive elements and networks; independent and dependent sources; switches and MOS transistors; digital abstraction; amplifiers; energy storage elements; dynamics of first- and second-order networks; design in the time and frequency domains; and analog and digital circuits and applications. Design and lab exercises are also significant components of the course. The course content was created collaboratively by Profs. Anant Agarwal and Jeffrey H. Lang.
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