GaN/SiC Transistors for Your Next Design: Fight or Flight?
This article offers some useful insights and guidelines on how to effectively design and test systems using wide band gap devices to optimize product performance and achieve EMC compliance.
Local PCB Layout Tweaks for Improved Signal Integrity When Using ESD Protection Devices
This article describes a practical way to improve signal integrity of typical interfaces on the PCB when using external ESD devices.
Clock Duty Cycle Tuning for Desense Mitigation in Modulation‑Involved Cases
This paper provides a comprehensive study on how to mitigate desense with the change in the spectrum distribution by tuning the duty cycle of the interfering clock. Measurements conducted on a real cellphone showed a 10 dB suppression of desense for certain TX bandwidth condition.
ESD Designers’ Headache with Multiple Automotive Test Requirements, Part I
The trend of progressively migrating both ESD and EMC immunity from the system/board to the component level is creating unprecedented challenges for the component ESD designer. Implications of EMC-ESD immunity co-design will be reviewed along with several case studies.
Troubleshooting EMI Issues Caused by Structural Resonances
Most EMI issues are caused by a resonance that is excited somewhere in the system. It may be a resonance of a cable acting as an antenna or a heatsink energized by the power electronics switches bolted to it, becoming a good radiator. In this article, we look at the indicators that signal the presence of structural resonances and provide techniques for fixing the EMI issues. Practical case studies are presented to demonstrate the techniques.
Energy Release Quantification for Li-Ion Battery Failures
The growing application of lithium-ion batteries brings with it an increased risk of unanticipated energy releases and thermal runaway. Quantifying battery energy release characteristics during product design can help mitigate those risks.
EMC Management in Charging Applications
Implementing a process of EMC compliance for a specific project is much more than simply ensuring that the design engineers follow a long list of “do’s and don’ts” in the form of EMC design rules. Following this process will reap benefits when EMC performance is evaluated at the end of the design process.
Common Mode Filter Design Guide
The selection of component values for common mode filters need not be a difficult and confusing process. The use of standard filter alignments can be utilized to achieve a relatively simple and straightforward design process, though such alignments may readily be modified to utilize pre-defined component values.
SCIF and Radio Frequency Secured Facility Design, Part 2
Secure facility designs often comingle ICS/ICD-705 and NSA 94-106 performance requirements creating project confusion with significant design and cost implications. This article focuses on bringing some clarity to the differences between ICS/ICD-705 design guidance and NSA 94-106 performance requirements. The related secure facility design and construction process is also reviewed.
Using Multiport Connectors in High-Frequency Military and Avionics Systems
Advance military and avionics technologies must be designed to address a range of complex specifications. The use of multiport connectors can provide significant benefits compared with conventional RF/microwave cable assemblies.