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Interference Technology

For EMI / EMC Engineers

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Toyota Crisis Spotlights EMI Role in Auto Electronics, Hybrids

 

Investigations into sudden acceleration issues have put a spotlight on everything that can go wrong with automotive electronics. “Electromagnetic interference leaves no trace. It goes away just as it came,” says Michel Mardiguian, an engineer and consultant near Paris who worked with a European automaker on a gremlin-like electronic fault. Toyota is not alone in its troubles. … [Read more...]

Proposed Power Line Would Use Direct Current to Avoid EM Fields

 

An Ontario-based company has announced plans for a $3.8 billion, 355-mile transmission line that would link New York City and southern New England with Canadian hydroelectric and wind power sources. The line would be installed mostly under major bodies of water, including Lake Champlain, the Hudson River and Long Island Sound, and would pass the electricity using direct current … [Read more...]

Solar Storms Could Be Earth’s Next Katrina

 

Government officials are concerned that a massive solar storm could leave millions of people around the world without electricity, running water, or phone service, according to a report by National Public Radio. The impact is likely to be far worse than in previous solar storms because of the growing dependence on satellites and other electronic devices that are vulnerable to … [Read more...]

Pyroelectric Infrared Sensor for Smart Energy Applications

 

Murata Electronics North America’s pyroelectric infrared (PIR) sensor, measuring 5.0mm x 4.7mm x 2.4mm, makes it suitable for use in compact, low profile electronic equipment and, in particular, energy saving devices. It provides numerous features including high sensitivity and signal to noise ratio, stability against temperature changes and white light and enhanced … [Read more...]

Low-Noise HBT Provides ESD Protection in Wi-Fi Apps

 

California Eastern Labs’ NESG4030M14 heterojunction bipolar transistor (HBT) at 5.8GHz delivers low-noise 11dB of gain at a low 2V/6mA bias, making it suitable for battery-powered, 802.11a mobile Wi-Fi applications. Fabricated using the firm’s 140GHz fMAX UHS4 SiGe:C process, the device also provides 80V (MM) of onboard ESD protection. The product is housed in a miniature, … [Read more...]

Single-Key Touch Controllers Use Spread Spectrum Modulation

 

Atmel Corporation recently announced its new AT42QT101X family of single-key touch controllers for the portable device market. The AT42QT101X family uses spread spectrum modulation to ensure electromagnetic compatibility, the company says. Touch controllers offer fast response time, low current consumption, and low noise. The ICs automatically calibrate when powered up and they … [Read more...]

EMC Test Amplifier Can Produce Up to 1500 Watts

 

AE Techron has developed the 7224, a precision amplifier for the EMC compliance testing market. The 7224 can be used in a wide range of susceptibility test standards, including: Ford EMC-CS-2009, DO-160, MIL STD 461 and T1.315-2001. Depending on configuration, the 7224 can produce up to 1500 watts, has an operating bandwidth of DC to 200kHz, and a 70V per second slew rate. The … [Read more...]

Electromagnetic Noise from 10 Hz to 40 GHz Covered in Revised Standard

 

A major revision is now available for IEEE C63.2™, "American National Standard for Electromagnetic Noise and Field Strength Instrumentation, 10 Hz to 40 GHz Specifications." The standard provides electromagnetic compatibility techniques and requirements for instruments measuring quasi-peak, peak, rms, and average values for electrical and electronic equipment for various … [Read more...]

Project CISPR 16-1-4 ed3.0: Pre-Release of Standard

 

Specification for radio disturbance and immunity measuring apparatus and methods – Part 1-4: Radio disturbance and immunity measuring apparatus – Antennas and test sites for radiated disturbance measurements.This part of CISPR 16 specifies the characteristics and performance of equipment for the measurement of radiated disturbances in the frequency range 9 kHz to 18 GHz. … [Read more...]

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