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Interference Technology

For EMI / EMC Engineers

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Varistor Series Protects Against Lightning Striking Interference

 

Littelfuse recently announced the launch of Ultra MOVTM 25S Varistor Series for applications requiring high peak surge current rating and high energy absorption capability. The new varistor series withstands peak surge current up to 22 kA at single 8/20 µs pulse which is the highest in the market. It can protect against lightning striking interference and abnormal power source … [Read more...]

PDM Digital-Input Class D Audio Amplifier Mitigates EMI

 

Analog Devices Inc. recently announced its PDM (pulse density modulation) digital-input Class D audio amplifier for handset and other portable applications, such as portable media players and laptop computers. The SSM2517 Class D audio amplifier combines a filterless mono Class D amplifier with an audio DAC in a tiny 1.5 mm x 1.5 mm package – the same size as some existing … [Read more...]

Architecture Meets Challenge of Crowded RF Spectrum Interference

 

Sigma Designs, which creates digital media processing system-on-chip solutions for consumer electronics, recently announced the launch of its fourth generation Z-Wave architecture. The ZM4100 Series Modules provide a new generation of home control capability that adds more frequencies, memory, and security to open up new markets on a worldwide basis. Sigma Designs notes that RF … [Read more...]

Standard Gain Horns Cover 2.6 to 40 GHz

 

A family of standard waveguide gain horns has been unveiled by Narda Microwave-East, an L-3 Communications company, for electromagnetic-interference (EMI) and electromagnetic-compatibility (EMC) testing covering every waveguide band from 2.6 to 40 GHz. The 600 series horns include seven standard models that cover 2.6 to 3.95 GHz, 3.95 to 5.85 GHz, 5.4 to 8.2 GHz. 8.2 to 12.4 … [Read more...]

Diode Has Integrated ESD Protection and EMI Filtering

 

Toshiba America Electronic Components Inc. has added a diode with electrostatic discharge (ESD) protection and electromagnetic interference (EMI) filtering to its line. The Toshiba DF3S6.8ECT protection diode provides digital and mobile equipment such as cell phones, PDAs, notebook PCs, digital cameras, and GPS devices with EMI and ESD protection from electrostatic discharge … [Read more...]

An Important Aspect of the New IPC-9592 Power Conversion Device Standard for the Computer and Telecommunications Industries

 

Author Angelo Fiorelli, Lineage Power Corp.   A power conversion device (PCD), although simple at first glance, is a complex device and a vital component of information technology and telecommunication products. Most original equipment manufacturers (OEMs) rely on the expertise of the PCD suppliers to provide the volts and amps required in making the products perform … [Read more...]

MILMEGA Announces Upgraded Power Amplifier Specifications

 

All models of MILMEGA's popular 0.8-6.0 range of solid state power amplifiers are now specified with improved P1dB levels. For instance, model AS0860-75/45 now has a guaranteed 75W P1dB power over 0.8-2.5GHz and 45W P1dB over the 2.5-6.0GHz frequency.  This improvement applies to all models the AS0860 range and is another example of MILMEGA's unrelenting mission to provide … [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...]

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