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Interference Technology

For EMI / EMC Engineers

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New Line of USB-Controlled Phase Locked Loop (PLL) Frequency Synthesizers

 

Pasternack, a leading provider of RF, microwave and millimeter wave products, has launched a new line of USB-controlled Phase Locked Loop (PLL) frequency synthesizers.  In RF & Microwave communications systems where signal integrity is of prime importance, PLL synthesizers offer high levels of frequency stability and accuracy with exceptional phase noise characteristics … [Read more...]

New Probe Features Large Offset Range & DC Voltmeter for Power Integrity Measurements

 

Rohde & Schwarz introduces a probe with both a large offset range and a DC voltmeter for power integrity measurements. The R&S RT-ZPR20 is a new, extremely low-noise power rail probe with a bandwidth of 2 GHz. Its 1:1 attenuation also ensures very good sensitivity. The large offset range of ± 60 V permits analysis of the smallest disturbance signals during power … [Read more...]

Troubleshooting EFT

 

EFT Phenomenon Recently I tested a medical device for EFT susceptibility. The requirement is that the medical device must be immune to EFT bursts generated per IEC 61000-4-4. Per this standard EFT bursts are applied in four steps. For level 4, steps 1 and 2 are +/-2kV at 5kHz, and steps 3 and 4 are +/-2kV at 100kHz. For each step, these bursts are applied at 300ms interval for … [Read more...]

Low Loss Thin-Film Metal Inductors with High Current Capability for Power Supply Circuits

 

TDK Corporation presents the new TFM160808ALC thin-film inductor for power supply circuits, which features a maximum DC resistance of 62 milliohms that is 30 percent lower than for existing types (e.g. TFM160808ALM, 0.47 µH). The new type, whose compact dimensions are just 1.6 mm x 0.8 mm x 0.8 mm, also offers a high rated current of 2.6 A and an inductance of 0.47 µH. In … [Read more...]

New One-of-A-Kind Contact Current Meter (CCM)

 

The ICNIRP 1998 and 2010 guidelines for limiting exposure to time‐varying electric and magnetic fields (1HZ – 100 kHz) and specifically about their reference levels for time-varying contact currents from conductive objects brought to the EMF Directive 2013/35/EU, mandatorily in force from July, 1st  2016 in the EU. One of the parameters to be measured in accordance with this … [Read more...]

New Edition of “EMC for Product Designers” Available Now

 

Now in its 5th edition, this text shows how to incorporate EMC principles in product design, avoiding cost and performance penalties to meet the needs of specific EMC compliance standards. A specific addition covers issues around functional safety. The book aims to present a complete introduction to EMC for product design,written by a practising consultant in the field. It … [Read more...]

Gaps In Return Planes – Bad News for EMI

 

Currently, there is an ongoing discussion among SI and EMC engineers on the fine points of PC board design for best signal integrity and EMI performance. Among the topics it seems designing in gaps or slits in ground return planes always comes up. Gaps can also occur mistakenly due to the addition of some connectors or other object that creates gaps in the copper. In fact, … [Read more...]

Radio Equipment Directive

 

This article provides an update on changes occurring as a result of the new Radio Equipment Directive (RED) 2014/53/EU which can be used from June of 2016. It looks at the changes in the product and regulatory landscape and what it means to equipment manufacturers. More detail on the history of the RED can be found in the article, Radio Equipment Directive, in the … [Read more...]

Frequently Asked Questions on Flexible Printed Circuits

 

Tech-Etch FAQ PDF on flexible circuits answers questions about manufacturing and designing circuits. What is a flexible printed circuit? What finishes are available for flex circuits? What are the benefits of flexible circuits over printed circuit boards? Can surface mount components be added to flexible circuits? What are the main markets and uses for high reliability flex … [Read more...]

Mersen Announces DC Overcurrent Protection Solutions for Electric Vehicles and Battery-Related Applications

 

Mersen is pleased to announce the expansion of its portfolio of electrical protection components with the availability of a groundbreaking series of DC Overcurrent Protection Solutions for electric vehicles and battery-related applications. Mersen's new Xp and Xs Series hybrid devices and Mersen's expanded line of DC fuses provide complete coverage of the whole DC protection … [Read more...]

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