20/03/2012
http://www.youtube.com/watch?v=4ErEBkj_3PY
Vijay Kumar: Robots that fly ... and cooperate
http://www.ted.com In his lab at Penn, Vijay Kumar and his team build flying quadrotors, small, agile robots that swarm, sense each other, and form ad hoc te...
19/03/2012
http://www.ted.com/talks/how_simple_ideas_lead_to_scientific_discoveries.html
How simple ideas lead to scientific discoveries | Video on TED.com
TED Talks Adam Savage walks through two spectacular examples of profound scientific discoveries that came from simple, creative methods anyone could have followed -- Eratosthenes' calculation of the Earth's circumference around 200 BC and Hippolyte Fizeau's measurement of the speed of light in 1849....
09/03/2012
http://www.youtube.com/watch?v=_4izDNAR2DE&feature=youtube_gdata_player
Robotic smart bird flies like real gull
A German company has developed a gull which can fly like real gulls. Smart Bird, which uses a compact 135 brushless motor, can start, fly and land autonomous...
24/02/2012
http://www.earthtechling.com/2012/02/high-speed-rail-concept-blazes-a-green-trail/
High-Speed Rail Concept Blazes A Green Trail «
A high-speed rail concept using solar panels and fuel cells along with maglev technology would travel between cities at speeds as high as nearly 280 mph.
18/02/2012
If you were asked to convert an old fuel engine car into an electric car, how will you proceed? Were and how will you use your knowledge of power electronics and drives? Please answer these two questions, bring in and share some links were you can find useful information about this subject.
10/02/2012
http://powerelectronics.com/power_systems/dc_dc_converters/power_buckconverter_design_demystified/?cid=top-articles
Buck-Converter Design Demystified Page of
Though stepdown converters - buck converters - are extremely popular, the rules of thumb and calculations that speed their design can be hard to find.
10/02/2012
http://powerelectronics.com/power_management/motor_power_management/power_sensorless_motor_control/?cid=top-articles
Sensorless Motor Control Simplifies Washer Drives Page of
Washing controls have used power inverters to control motor speeds for years. Variable-speed control enables a significant simplification of the mechanical system by replacing a clutch and gearbox with a belt drive. Washers in North American commonly use a three-phase induction motor with tachometer...
10/02/2012
http://powerelectronics.com/power_semiconductors/power_mosfets/power-management-101-power-mosfets-0515/
Power Management 101: Power MOSFETs | May 2009 Page of
What are Power MOSFETs ? Power MOSFETs (Metal-Oxide Semiconductor Field Effect Transistors) are three-terminal silicon devices that function by applying a signal to the gate that controls current conduction between source and drain. Their current conduction capabilities are up to several tens of am...