At Sensors Expo 2019 in San Jose, CA, Lucas Tschuor, Head of Field Application Engineering at Sensirion, explains how his company’s proximal flow sensor is used in respiratory applications with the help of a teddy bear. With a very sensitive device, breathing cycles can be detected and help the patient breathe providing an ideal sensor […]
How can you have touchless touch sensing?
At Sensors Expo 2019 in San Jose, CA, Håkan Persson, CEO of Neonode Inc., demonstrates touchless sensing using his company’s vertical-cavity surface-emitting laser (VCSEL) technology. Neonode’s zForce® (zero force) patented optical sensing technology uses infrared light, invisible to the human eye to provide a holographic touch screen, essentially making air touchable. The holographic design consists […]
LED bulbs then and now: Teardown of the EcoSmart, Feit, and Sylvania 60-W equivalent LED bulbs
Compared to the LED bulbs of only a few years ago, modern-day versions are simpler and assembled via more automated methods. Leland Teschler, Executive Editor If you tore down an LED bulb manufactured a few years ago you’d likely find evidence of hand soldering a bit of kludgy design practices. We found both these practices […]
Traps to avoid when spec’ing a custom transformer
John Gallagher from Pulse Electronics recently spoke with us about some of the things design engineers and circuit designers need to know when they’re working with a company that makes transformers and inductors. He says a lot of circuit designers look at transformers as ideal transformers –there’s just a certain number of turns in the […]
APEC 2019: Up close and personal with a low-profile power supply
Alex Karapetian from Acopian recently sat with us and discussed a new, low-profile switching supply that is a programmable, provides a 450-W output, and sits in a low-profile housing. It’s offered both in single output and wide adjustable from 0 to 5 V, 0 to 135 Vdc, at 150W. It’s also a universal input device. […]
Teardown: Simple approach characterizes modern LED bulbs
LED bulbs we examined are often simpler than those made four years ago, sometimes employing discrete transistors to handle tasks once done via chips. Leland Teschler, Executive Editor Back in 2015, we examined LED bulbs putting out the equivalent of 60-W incandescent bulbs. We recently obtained several new LED bulbs to see how things have […]
How can you get digital temperature data?
At Sensors Expo 2018, Mike Mays from Analog Devices explains the LTC2983, a temperature to bits IC. The IC is designed to be an extremely easy to use part. Everything necessary to measure temperature is performed by the chip and its output is in direct degrees C. In the display, an “EMI (electromagnetic interference) Hairball […]
How eGaN transistor technology improves Lidar performance
Alex Lidow from EPC recently filmed a video with us covering Lidar, a hot subject right now for autonomous vehicles. One of the biggest applications for eGaN is driving these lasers. The reason is that automakers want to see a long distance with a high degree of accuracy. To do that, the laser in a […]
Graphics-intensive apps get more juice from GaN dc/dc converters
Alex Lidow from EPC recently did a short video with us covering a brand new GaN-based DC-DC converter that’s super small and efficient. Lidow says EPC has been working to improve GaN-based dc/dc conversion for about eight years. They had to overcome a lot of barriers to do so because when they first started, there […]
A DIY vector network analyzer? Yes, there is such a thing
Believe it or not, there’s a do-it-yourself vector network analyzer that can be constructed with a few readily available parts which also can provide measurements accurate enough to be useful in professional work. The basis for the VNA is a chip from Mini-Circuits. Mini-Circuits president Ted Heil explained the ideas behind the DIY VNA in […]
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