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Locating the Noise Source of the 10-30 MHz “Hump”

During conducted emission tests, one of the challenges manufacturers face is the resonance peaks in the harmonic noise somewhere between 10 MHz and 30 MHz. Often, no amount of filtering will eradicate or attenuate the peak.

Let’s Talk About the Low Noise Measurement Probe

Ever tried to measure low-level signals in the presence of noise? Or wanted to capture a measurement isolated from ground, like that of an ungrounded hand-held digital multi-meter, but also needed to capture finer details of the signal, like those captured with an oscilloscope?

Verifying the Effect of ElectroMagnetic Noise on an In-Vehicle Ethernet Network

This article describes how the principles of laboratory testing of electrical noise impairment can be followed in the automotive sector to dramatically reduce the manufacturer’s development time and effort.

New Edition of IEC 60195:2016, Measurement of Current Noise

The International Electrotechnical Commission (IEC) has published a new edition of IEC 60195:2016, the standard for "method of measurement of current noise generated in fixed resistors."

Electronic Noise Will Drown Out the Internet of Things

That’s the conclusion of the authors of a recent article posted to the IEEE’s...
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Electrical Interference in Honda Accord Hybrids Prompts U.S. Recall

Earlier this week, we reported that Honda Australia was recalling the 2015 Accord Sport...

Electric Noise Therapy for Parkinson’s Patients

Scientists from the Sahlgrenska Academy at the University of Gothenburg in Sweden have designed...

New Giga-tronics Application Guide: Noise Consideration in Broadband Microwave Power Amplifiers

Giga-tronics has released an application guide that discusses noise considerations in broadband microwave amplifiers....

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Rufus set up the stepladder outside the trauma room so I could climb up...

Noise Mitigation Analysis of a π-filter for an Automotive Control Module

Electromagnetic interference (EMI) filters are often used on automotive 13.8 VDC power networks to reduce high-frequency noise from being conducted off the printed circuit boards (PCB) and resulting into EMI problems. The filter performance is difficult to predict and often compromised at high frequencies due to parasitics associated with the filter itself, or the PCB layout. The power line filters with Surface Mount Technology ferrite and Multi Layer Ceramic Capacitors are attractive solutions for mitigation of RF noise in high-density automotive PCBs. A lumped-element SPICE model is introduced for optimized π-filter design, including frequency-dependent ferrite component model. The PCB implementation of EMI filter is outlined for optimum filter performance.

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