Power
Device turns body motion into power source
A combined team of researchers with members from several institutions in China and the Georgia Institute of Technology, has developed a flexible nanogenerator that harnesses the energy from moving body parts and uses it to run electronic devices. In their paper published in the journal Science Advances, the team describes their new device, how they made it bendable, and the ways they believe it might be used.
60V N-channel MOSFET offers industry's best resistance
Texas Instruments has introduced a 60V N-channel FemtoFET power transistor that provides the industry's lowest resistance, 90% below traditional 60V load switches. Reducing power loss in end-systems. The CSD18541F5 is offered in a tiny 1.53x0.77x0.35mm silicon-based package that has an 80% smaller footprint than load switches in SOT-23 packages.
Sensorless controller drives three-phase BLDC motors
Expanding its portfolio of motor controllers, ON Semiconductor has announced a high performance and feature-packed three-phase BLDC motor controller. The LV8907UW integrates gate drivers for six N-channel MOSFETs and a dual-stage charge pump for 100% duty-cycle operation. It supports an operating voltage range from 5.5 to 20V (4.5 to 40V transient).
Optimising automotive pre-boost power supplies
In the first part of a three part feature, Matthias Ulmann of Texas Instruments describes the problem involved in designing and optimising an automotive pre-boost power supply, shows the impact of a cold start test pulse on such a supply, and discusses a typical pre-booster specification.
SoC optimisation to the next level
Minimising the PCB footprint and the BoM cost implies embedding the Power Regulation Network (PRNet) in the SoC. Meanwhile, minimising drastically the SoC power consumption involves implementing several modes of activity to turn on and off different functions of the SoC, which generates noise on the supply lines during mode switching.
Improving grid-scale batteries
A Stanford University research lab has developed technologies to tackle two of the world’s biggest energy challenges – clean fuel for transportation and grid-scale energy storage. The researchers described their findings in two studies published this month in the journals Science Advances and Nature Communications.
Superconducting magnet powers up after cross-country journey
A team of physicists and engineers at the U.S. Department of Energy's Brookhaven National Laboratory has just completed preliminary tests of a 20-ton cylindrical magnet that could form the heart of an upgraded particle detector at the Relativistic Heavy Ion Collider (RHIC). The goal was to see if the superconducting solenoid was in working order after having sat idle for 8 years, and then traveling cross-country from California to Brookhaven last...
µModule power products suit aerospace & defence
Linear Technology introduces over 53 µModule (micromodule) power products with SnPb BGA packages, targeting applications where the use of tin-lead soldering is preferred, such as in defense, avionics and heavy equipment industries. A µModule point-of-load regulator with SnPb BGA package simplifies PC board assembly for suppliers in these industries.
SiC power module reduces weight in EVs
Designed for high current applications, Wolfspeed’s all-SiC power module in a 62mm module targets converters, inverters, motor drives, industrial electronics and EV systems.
Fanless power supply delivers 600W with natural convection cooling
No fan, no noise and no vibrations, says Excelsys, as it launches a convection-cooled, modular power supply. The CoolX600 series delivers 600W without fan-assisted cooling.