National Semiconductor Corp. recently introduced the SolarMagic™ arc detection reference design, comprised of analog front end integrated circuits (ICs) and multi-band dynamic filtering firmware, the first commercially available chipset to detect hazardous DC arc faults in photovoltaic (PV) systems.In PV systems today, intermittent connections or insulation deterioration … [Read more...]
EMC Business Bulletin – June, 2011 – Volume 12
Check out these tips and pitfalls, and make your EMC marketing work smarter I like reading BtoB Magazine, especially Morrison's pieces on electronics engineers. In her latest article, she reminds us that EEs are information junkies. But getting the details of your latest filters or lightning test system into the heads of your prospects often leads marketers into a frenzy of … [Read more...]
Temperature Stable Measurement ICs for Power Management
STMicroelectronics’ new single-chip high-side current-sense amplifier, TSC1021, simplifies the design of accurate measurement circuitry in electronic control units. The TSC1021 provides a common-mode operating range of 2.8V to 30V and the device can withstand a range of -32V to +60V on its input pins without damage, enabling the device to target a variety of applications. In … [Read more...]
Protected Common Mode Filters for High Speed Serial Interfaces
ON Semiconductor’s new range of common mode filter (CMF) devices have integrated electrostatic discharge (ESD) protection to suppress noise and provide strong signal integrity. The new EMI2121, EMI4182 and EMI4183 devices are highly suitable for implementation in smartphones, media tablets, wireless connectivity dongles and digital camcorders, as well as set top boxes and DVD … [Read more...]
Active Harmonic Filter for Variable Load PFC
MTE Corporation’s Matrix PureSine Active Harmonic Filter is a powerful filtering solution for coordinated variable load power factor correction (PFC), phase imbalance and harmonic mitigation. The PureSine comes standard in a wall mount configuration and supports 480V. The LCD display provides both English and Spanish text. The fully modular system allows the user to … [Read more...]
EMC Filters for Lifts and Escalators
Premo now include in its portfolio, EMC filters specially designed for lifting equipment and machines with variable speed, such as elevators or escalators.The new family is available from 7 to 250A and can operate in applications with nominal voltages of 520 Vac 50/60 Hz. Connections are made with safety terminal blocks, sized according to the current. Premo EMC has developed … [Read more...]
Three Phase Sine Wave Output Filters
Schurter’s new 3-phase sine wave output filters, series FMAC SINE and FMAC SINE DCL, are designed to convert output voltage wave forms produced by PWM (Pulse Width Modulation) frequency converters into low distortion sine wave forms for motor and power transformation applications resulting in significantly increased efficiency and life of the motor. The Schurter sine wave … [Read more...]
Compact 2-Stage EMI Line Filter Offers Three Design Configurations
Schurter’s new compact, high grade EMI-filter series FMBB NEO filter family consists of three different 2-stage filter designs (Design C, Design D and Design F), which are characterized by a high symmetrical and asymmetrical attenuation. The FMBB NEO filter Design C attenuates potentially strong conducted interferences. Design D is laid out for the attenuation of high frequency … [Read more...]
Measurements above 1 GHz in Time-Domain: Theory and Application
Christian Hoffmann, Technische Universität München, Lehrstuhl für Hochfrequenztechnik, Munich, Germany; Stephan Braun, GAUSS Instruments GmbH, Munich, Germany Arnd Frech, GAUSS Instruments GmbH, Munich, Germany; Peter Russer, Technische Universität München, Lehrstuhl für Nanoelektronik, Munich, Germany Time-domain electromagnetic interference (EMI) measurement systems are … [Read more...]
On the Radiation Patterns of Common EMC Antennas
Vincente Rodriguez, ETS-Lindgren LP., Cedar Park, Texas, USA Antennas have been used in EMC measurements since the early days. Knowledge of the antenna pattern was not a requirement of the standards. While MIL STD 461 and some SAE standards called for information on the half power beamwidth, most standards did not require any knowledge of the antenna radiation characteristics. … [Read more...]
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