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Interference Technology

For EMI / EMC Engineers

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IEC Revises EMC Power Frequency Magnetic Field Immunity Test Standard

 

Replacing the first edition published in 1993 and its Amendment 1 published in 2000, the IEC recently released a revised version standard, IEC 61000-4-8:2009. This Electromagnetic Compatibility standard relates to the immunity requirements of equipment, only under operational conditions, to magnetic disturbances at power frequencies 50 Hz and 60 Hz related to residential and … [Read more...]

LED Driver Said to Reduce Cost of EMI Filter Components

 

A common EMI challenge in automotive applications is avoiding interference of an electronic circuit with the AM radio. Maxim Integrated Products says its new MAX16814 allows users to program the switching frequency from 200kHz to 2MHz, thus enabling operation above the AM radio band. In addition, its oscillator-synchronization feature minimizes EMI noise when multiple MAX16814s … [Read more...]

Diodes Protect Against ESD in Mobile Devices

 

Renesas Technology Corp. recently announced two new bidirectional Zener diodes for protecting the circuitry of mobile devices from damage due to stray voltage from internal or external electrostatic discharge. The RKZ7.5TKP has a package measuring 0.6 by 0.3 millimeters, while the RKZ7.5TKL provides an additional package option.LEARN MORE … [Read more...]

Enclosures Cast in Lightweight Magnesium Alloy

 

Teko Enclosure Solutions’ latest hand-held enclosures are die-cast in ultra-lightweight magnesium alloy with absolute strength and high EMI/RFI shielding properties. The enclosures are sealed to IP 67 (NEMA 4X) protection class, include side profiles with soft-touch surface, have a top recess for membrane keypad or label and include three types of battery compartments and … [Read more...]

MILMEGA Announces New Amplifier Range

 

MILMEGA are pleased to announce the introduction of the new 1.8GHz to 6.0GHz  broadband amplifier range which has been designed to add 1800MHz and 1900MHz test  capability to an already flexible single band / single box solution for communication system test applications. Amplifiers in the range are available in three power levels; 30W, 50W and 100W. These amplifiers are … [Read more...]

Canadian Company Opens EMC Lab

 

Tranzeo Wireless Technologies Inc. of Vancouver, British Columbia, Canada, a manufacturer of wireless broadband and WiMAX communications systems, has created an offshoot company, Tranzeo EMC, to operate its EMC testing facilities for clients.LEARN MORE … [Read more...]

Ultra Small Micro-Surge Suppressor

 

A new method to suppress micro-surge, an over-voltage noise that occurs instantaneously caused by inverter switching signals, has been developed by OKI Electric Cable of Kanagawa, Japan, and Tokyo Metropolitan University. A patent is pending on the method that employs a surge suppression cable and a newly developed energy regeneration module. These new technologies enabled the … [Read more...]

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...]

New Router Designed for High Level of EMI Immunity

 

RuggedCom Inc. a provider of rugged communications networking solutions designed for mission-critical applications in harsh environments, has announced the RuggedRouter RX1000 and RX1100 series routers are approved for use on the Verizon Wireless network through the wireless operator’s open development program.The RuggedRouter is hardened to the RuggedRated specification which … [Read more...]

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