A new family of high-performance, multi-channel jitter-attenuating clocks target 4.5G and Ethernet-based Common Public Radio Interface (eCPRI) wireless applications. The new Si5381/82/86 clocks deliver an advanced timing solution that combines 4G/LTE and Ethernet clocking in a single IC. These highly integrated clocks eliminate the need for multiple clock devices and voltage-controlled crystal oscillators (VCXOs) in […]
Low-power clock ICs simplify timing for 10/25/100G Ethernet designs
A new family of high-performance clock generators target 10/25/100G applications. The new Si5332 clock family from Silicon Labs uses MultiSynth fractional clock synthesis technology to deliver jitter performance of 230 fsec rms. Multiple Si5332 options spanning 6, 8 and 12 clock outputs enable clock tree consolidation for demanding applications including hyperscale data center switches, servers, […]
Basics of ground fault interrupters
Ground-fault circuit interrupters (GFCIs) are sometimes also called earth leakage or residual-current circuit breakers. They can sense leakage current to earth ground and interrupt the circuit automatically when leakage current exceeds a predetermined value. A typical way of detecting ground fault currents is through the use of a core-balance protection device. Here hot (sometimes called […]
Basics of power cords in North America
All ac power cords sold in North America must meet a NEMA standard and UL standards that spell out factors such as the minimum wire gage and the connector style. Most cords sold for industrial use, and even many of the cords targeting home appliances, have a third contact in addition to the power and […]
Power monitoring IC boosts software power measurement accuracy to 99% in Windows 10 devices
A precision power and energy monitoring chip works in conjunction with a software driver that is fully compatible with the Energy Estimation Engine (E3) built into the Windows 10 operating system to provide 99% accuracy on all Windows 10 devices that have batteries. Developed by Microchip Technology, the PAC1934 and Windows 10 driver can improve […]
Optical probe, analysis software excels at dissecting PAM4 modulation
The DPO7OE1 is a calibrated optical probe and analysis software package for use with real-time oscilloscopes. Developed by Tektronix, it is optical reference receiver-(ORR) compliant for 28-GBaud PAM4 applications and supports IEEE/OIF-CEI standard specific measurements. It complements Tektronix optical PAM4 analysis tools for sampling oscilloscopes, giving design teams efficient test solutions for all stages of […]
Gallery: Technical highlights of the Electric & Hybrid Vehicle Technology Expo
Electric & Hybrid Vehicle Technology Expo & Conference kicked off this week in Novi, Mich. near Detroit. Billed as a forum for electric, hybrid and plugin hybrid vehicle technology, it showcased technological developments along the supply chain including electrical powertrains and components, battery management systems, materials and equipment. Here are a few of the more […]
2-W and 4-W board-mount supplies operate from 90 to 305-Vac inputs
The KAS series ac-dc power supplies is rated at 2 and 4 W. Accepting 90 to 305-Vac, 47-440-Hz inputs, these board-mounted converters will operate from 115, 230 and 277-V nominal inputs. Target applications include security systems, building automation, professional household appliances, portable equipment and products requiring a separate standby voltage. The series has a double-insulated […]
New manufacturing process for SiC power devices won’t be proprietary
Researchers from North Carolina State University say they have developed a new manufacturing process and chip design for silicon carbide (SiC) power devices. The process, called PRESiCE, was developed specifcially to make it easier for companies to enter the SiC marketplace and develop new products. “PRESiCE will allow more companies to get into the SiC […]
World’s First 3D robotic LED sign brightens up Times Square
Coca-Cola recently unveiled a new six-story digital sign in Times Square featuring 1,760 independently moving LED screens, choreographed to the content on display. Coke says Guinness World Records was on hand for the sign’s debut and awarded The Coca-Cola Company two record titles: The Largest 3D Robotic Billboard and The First 3D Robotic Billboard. Few […]