New technology called FieldSense allows open-fork, current-measuring meters to take simultaneous voltage and current measurements — not just detection — without test leads. Developed by Fluke, the new T6 true-rms Electrical Testers, the first tools to use FieldSense technology, are now available at local distributors and retailers. While the technology in the T5 detects an […]
MOSFET PCBs balance high-voltage supercapacitors via low-power leakage-current regulation
High-voltage supercapacitor balancing printed circuit boards are designed to automatically control leakage current and enhance reliability for applications used in data center, industrial automation, public utility, and transportation systems. ALD SABMB810028 boards built with ALD810028SCLI SAB (supercapacitor auto-balancing) MOSFETs provide balancing for 2.8-V, 3.0-V and 3.3-V supercapacitors arranged in a series stack by equalizing the […]
Formula E racers to get lighter thanks to SiC inverters
Full SiC power modules will form the basis of the inverter on the Venturi Formula E team in the FIA Formula E 2017–2018 (season four). The racing season will start on December 2nd and 3rd in Hong Kong. The SiC power modules were devised by ROHM. The inverter for season four features embedded full SiC […]
Portable bridges reveal their stresses to data recording systems
Ravi Shukla, HBM Test and Measurement Eighteen channels of sensor data from strain gauges attached to girders supporting bridge decking helped U.S. Army Corps of Engineers technicians monitor and record stresses on a decking structure of a new portable bridge. The work took place at the Corps’ Engineer Research and Development Center (ERDC) in Vicksburg, […]
Gauging progress in SiC MOSFET technology
A review of SiC MOSFET performance data shows these devices have improved dramatically in a short time. And improvements are likely to continue. Kevin M. Speer, PhD | Littelfuse, Inc., Sujit Banerjee, PhD | Monolith Semiconductor Inc. Insulated gate bipolar transistors (IGBTs), first commercialized in the early 1980s, revolutionized the power electronics industry. Today, silicon […]
40-65-W industrial supplies accept 115/230/277-V nominal inputs
The CSW65 series of ac-dc power supplies are rated at 40 to 65 W of output power. Developed by TDK Corp., the accept a wide 90-to-305-Vac input and can operate from 115, 230 and 277-V nominal inputs. They are available in a U-channel construction and have cover and/or DIN rail mounting clip options. Target applications […]
LED drivers target high-lumen-output apps with high-voltage output
The 100-150W HVO Series is the latest addition to the Incore family of high-performance constant-current LED power supplies. Developed by LinkCom, the HVO Series is available in models with power ratings of 100 W, 120 W and 150 W – all with efficiency over 90% when powered from a 200-Vac or higher source voltage. Weatherproof […]
Compact open-frame ac-dc supplies carry IEC 60601-1 4th Edition medical approvals
Five open-frame series from CUI Inc., ranging from 180 W up to 550 W, are certified to the medical 60601‑1 edition 3.1 safety standards for 2 x MOPP applications and 4th edition EMC requirements. The VMS‑180, VMS‑225, VMS‑275, VMS‑350, and VMS‑550 series feature energy efficiency up to 94% and power densities up to 30 W/in3. […]
World’s first 100 mW deep-UV LED
LG Innotek says it has developed the world’s first 100-mW UV-C LED. The UV-C LED emits ultraviolet light with short wavelengths ranging between 200 – 280 nm and is also called deep UV. It is used in sterilizing and hardening devices with its ability to destroy bacterial DNA and cause chemical reactions with special materials. […]
A quick way to wear out EV batteries: V2G power won’t make sense without smarter grids
There was controversy recently when two different research groups came to two different conclusions about the practicality of using the lithium-ion batteries in electric vehicles as a source of power for the utility grid. The idea behind vehicle-to-grid (V2G) proposals is that EVs can send the power in their batteries to low-voltage microgrids or buildings, […]