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Interference Technology

For EMI / EMC Engineers

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Device Reduces System Cost in Consumer Audio

 

Texas Instruments Incorporated recently introduced a 15-W stereo, true filter-free, analog-input, Class-D audio amplifier. The device's advanced electromagnetic interference suppression technology eliminates the need for costly inductor-based output filters, reducing bill of materials (BOM) cost by as much as 50 percent. The TPA3110D2's SpeakerGuard protection circuitry … [Read more...]

System Uses EM Waves to Deliver Wireless Power through the Air

 

At the recent TED Global Conference in Oxford, UK, a US-based technology firm, WiTricity, demonstrated a system that delivers electricity through the air to power laptops, cell phones, and other electrical devices. This new system is based on the work of Professor Marin Soljacic, a physicist at the Massachusetts Institute of Technology. The concept of sending power wirelessly … [Read more...]

ESD Protection Diode for RF Antennas

 

The ESD0P2RF-02LS from Infineon Technologies is 0.62 mm x 0.32 mm with a height of 0.31 mm. It can be easily integrated into complete modules and front-end systems. Crafted to protect electronic consumer and communications devices from electrostatic discharge, it can reliably absorb discharges up to 20 kV, a figure that significantly exceeds the industry standard IEC 61000-4-4 … [Read more...]

Standard on Limitation of Voltage Fluctuations and Flicker in Low-Voltage Power Supplies

 

"IEC/TS 61000-3-5:2009 deals with emission of disturbances due to voltage fluctuations and flicker. The recommendations in this technical specification are applicable to electrical and electronic equipment that has a rated input current exceeding 75 A per phase and is intended to be connected to a public low-voltage a.c. distribution system. Recommendations that specify … [Read more...]

ESD Protection Diode for RF Antennas

 

The DSD0P2RF-02LS from Infineon Technologies is 0.62 mm x 0.32 mm with a height of 0.31 mm. It can be easily integrated into complete modules and front-end systems. Crafted to protect electronic consumer and communications device from electrostatic discharge, it can reliably absorb discharges up to 20 kV, a figure that significantly exceeds the industry stand IEC 61000-4-4 … [Read more...]

Timing Devices Reduce EMI and Feature Low Clock Jitter

 

VersaClock III devices from Integrated Device Technology (IDT) are the newest addition to the VersaClock™ family of programmable clock generators specifically crafted for use in high performance consumer electronics, telecom, networking, and data communications systems. To boost design flexibility, the VersaClock III family features four internal PLLs (phase locked loops), each … [Read more...]

Webinar Updates FCC Regs & EMC Product Compliance

 

Today’s ubiquitous digital products can interfere with broadcasting, emergency communications, and even air traffic control. Bureau Veritas has scheduled a one-hour webinar “Why You Need to Know: FCC and Digital Consumer Products. It is slated for July 23, 2009 at 2 p.m. EDT. The fee for non-members of Bureau Veritas is $199. Bureau members can access the course free by using a … [Read more...]

New Direction for FCC?

 

Last Thursday evening in an uneventful vote completed in a few minutes, the United States Senate confirmed Obama nominee Julius Genachowski as Chairman of the Federal Communications Commission. Republican Commissioner Robert McDowell was confirmed for a second term, and Obama has nominated Mignon Clyburn for the remaining Democratic spot on the Commission while Meredith Atwell … [Read more...]

Spread Spectrum Oscillator Lowers EMI Output

 

The CSSC from Cardinal Components is a programmable spread spectrum oscillator crafted to lower the EMI output of a product significantly as compared to conventional clock generators. The first in a series, the CSSC is SMT programmable with HCMOS output. The device is pin compatible with conventional oscillators allowing for simple drop-in replacement of components. The device … [Read more...]

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