A TENS device for transcutaneous electrical nerve stimulation wraps around the upper calf much like a wristwatch wraps around the wrist. Here are some of its operational secrets. A medical device called a Quell performs what’s called transcutaneous electrical nerve stimulation on the lower leg. This technique is said to relieve diabetic pain. None of […]
Featured
Considerations for improving 3D NAND performance, reliability, and yield
by Mark Puttock, Director Advanced Deposition and Plating, office of CTO, Entegris Even as 3D NAND races toward maturity and becomes a mainstream technology, chipmakers know there is still more to achieve to meet worldwide consumer and business data demands at lower costs, given the extreme complexities involved. As with previous technologies, focusing on process […]
Connected and autonomous vehicle technology get center stage at TU-Automotive Detroit 2018
Billed as the world’s largest automotive technology expo, TU-Automotive Detroit kicked off this week in Novi, Mich. with over 150 booths and conference tracks on ADAS and autonomous vehicles, smart cities and urban mobility, connected services, and more. Automotive cybersecurity and E-mobility were among the themes we saw. Here are some of the more interesting […]
How to measure entropy
It was once widely taught that entropy is a measure of disorder. Educators increasingly feel that the concept of entropy as disorder can be confusing. So increasingly the “disorder” explanation is giving way to the idea that entropy describes energy spreading out or dispersing. The usual ways energy spreads out is when the system increases […]
Power Electronics Top Talks in May 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 XFMR winding optimization for DC resistance – I am asking about the design of the windings of a high-frequency transformer. The point […]
Microcontroller Top Talks in May on EDABoard.com forums
Peer-to-peer, engineer-to-engineer questions and answers from the EDABoard.com engineering community around microcontrollers. Click the “Read more” link and follow the entire conversation and maybe add your two cents by logging in to EDAboard.com. Circuit diagram to connect the PIC kit3 debugger – Can anyone provide me with the circuit diagram to connect the Pic Kit3 debugger […]
Analog Top Talks in May on EDABoard.com forums
Peer-to-peer, engineer-to-engineer questions and answers from the EDABoard.com engineering community around analog ICs and analog design. Click the “Read more” link and follow the entire conversation and maybe add your two cents by logging in to EDAboard.com. Signal generator instability – I have built this signal generator and I have noticed that is quite stable on […]
Video Teardown: HOME Ever Inc. E27 A19 60-W equivalent LED bulb
As part of a continuing series where we take perfectly good LED bulbs and turn them into junk, Design World Executive Editor Lee Teschler and Associate Editor Michelle DiFrangia analyze the circuitry and design techniques used in a 60-W equivalent bulb from HOME Ever Inc., a Chinese manufacturer. There are big differences in this bulb […]
Measuring earth’s magnetic field
Earth’s magnetic field is far stronger than that of Venus or Mars, and this single fact explains why life on earth is abundant while its nearest neighboring planets do not at present support life. Earth’s magnetic field extends from its outer core (where swirling molten iron produces a dynamo effect) up through the magnetosphere, extending […]
Programming automation using NFC tags
Near Field Communication (NFC) is a wireless communication technology that acts over short distances for two-way communication. The use of NFC tags is growing in several markets, including the medical, consumer, retail, industrial, automotive, and smart grid markets. NFC is a type of Radio-Frequency Identification (RFID) technology. When two NFC enabled devices are very close […]