TEGs – thermal electric generators – are used for energy harvesting and enhanced efficiency, as well as stand-alone primary power sources for both mundane and highly advanced situations. Every application needs a source of energy which can be “drawn down” to provide power for the system. Obviously, the easier and cheaper it is to get […]
All-electric Formula-E racing ramps up
The Formula-E championship is comprised of 13 races that take place in 12 cities across five continents. Season five kicked off in Ad Diriyah, Saudi Arabia, on Sunday, December 16, 2018, and will take its final lap in New York City on Sunday, July 14, 2019. The next race takes place this Saturday, February 16, […]
Review: Examining power and energy use with the Joulescope
The Joulescope is an inexpensive test instrument designed to let developers of embedded systems get a good look at the energy and power consumption of their hardware during important events such as interrupts and wake-up sequences. Developed by a company called Jetperch, Joulescopes are about to become available through a Kickstarter campaign launching Feb. 19. […]
Power Electronics Top Talks in January 2019 on EDABoard.com forums
Peer-to-peer, engineer-to-engineer questions and answers from the EDABoard.com engineering community around power electronics. Click the “Read more” link and follow the entire conversation and maybe add your two cents by logging in to EDAboard.com Driving induction motor using TRIAC – The induction motor is 230VAC. I have to drive a 230VAC induction motor in both directions […]
Why use optocouplers in electronics?
Optocouplers not only protect sensitive circuits but enable an engineer to design a variety of hardware applications. Optocouplers can avoid a great deal of cost in replacing components by protecting them. However, optocouplers are more sophisticated than fuses. Optocouplers also make it convenient to control the connection between two circuits by connecting and disconnecting them […]
Motor field-oriented control, Part 2: Implementation
Part 1 of this FAQ set the stage for a rudimentary understanding of FOC (field-oriented control) but did not delve into the math-heavy details. Part 2 now looks at some implementations, again without the underlying math. Q: If a designer wants to implement FOC, does he or she have to pull together all the hardware […]
An intuitive view of Maxwell’s equations
by Asem Elshimi, Design Engineer, Silicon Labs “From a long view of the history of mankind, seen from, say, ten thousand years from now, there can be little doubt that the most significant event of the 19th century will be judged as Maxwell’s discovery of the laws of electrodynamics. The American Civil War will pale into […]
What’s the difference between a MOSFET and a JFET?
It’s a pretty common question for beginners and can be a fun walk down memory lane for experienced practitioners. Let’s take a dive into two fundamental devices of integrated circuits and learn when to use one over the other. How they are alike Let’s start with what they have in common: they are both types […]
Motor field-oriented control, Part 1: Principles
Field-oriented control, also known as vector control, is a calculation-intensive algorithm for motor control which is now practical due to advances in ICs; it offers improved efficiency along with superior control of torque and other performance parameters. Motor control—and doing so accurately and efficiently—is a topic of great interest. Field-oriented control (FOC), sometimes called vector […]
Power Electronics Top Talks in December on EDABoard.com forums
Peer-to-peer, engineer-to-engineer questions and answers from the EDABoard.com engineering community around power electronics. Click the “Read more” link and follow the entire conversation and maybe add your two cents by logging in to EDAboard.com Favorite low phase shift 240Vrms detector – I have a requirement for a very low phase shift, galvanically isolated, zero cross detector […]
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