Certification In years past, E3 (Electromagnetic Environment Effects) control and Spectrum Supportability were considered separate entities and design and development efforts were often segregated. Over the last several years, the trend has shifted to a more consolidated approach and today the two areas go hand in hand. Spectrum Supportability starts with equipment spectrum … [Read more...]
Introduction to MIL-STD-464C
Responding to increasing criticism, Secretary of Defense William Perry issued a memorandum in 1994 that effectively eliminated the use of most defense standards. This has become known as the “Perry memo”. Many defense standards were canceled. In their place, the DOD encouraged the use of industry standards for quality assurance. MIL-STD-464 was developed as an “Interface … [Read more...]
Design for EMC Compliance Essentials
Introduction While unrealistic to discuss all aspects of product design in a single article, I’ll try to describe the most common design issues I find in the hundreds of client products I’ve had a chance to work on. These issues generally include PC board design, cables, shielding, and filtering. More detailed information may be found in the Reference section below. As … [Read more...]
Using An Oscilloscope To Verify EMC Tests For Automotive Electronics
Consumer demand for more entertainment, safety, and communication options within automobiles has significantly increased both the density of electronic components and the number of on-board wired and wireless signals. The result: an ever-expanding range of signals contained within the same car-sized fixed space. USING AN OSCILLOSCOPE TO VERIFY EMC TESTS FOR AUTOMOTIVE … [Read more...]
SCHURTER Classic Power Entry Module with Circuit Breaker Gets Even Better
Santa Rosa, California, November 30th, 2023 – SCHURTER series DG11 and DG12 with and without main filters feature a first-of-its-kind ingress protection solution for IEC inlets, consisting of a seal gasket between the connector and mating V-Lock power cord. The blue colored latch of the V-Lock power cord and blue inlay of the appliance inlet indicate that the two have been … [Read more...]
Techniques For Mitigating Intrapair Skew-Induced EMI With Shielded Connectors
Introduction EMI stands for electromagnetic interference. There are several methods of EMI transmission from the source to the victim. Two of them are radiated EMI and conducted EMI. Radiated EMI happens when an electrical device produces an RF signal that is picked up and causes unwanted effects. Conducted EMI is unintentional energy carried out of the source via signal … [Read more...]
Customized Wire Harness Solutions by SCHURTER
SCHURTER is pleased to announce its wire harness solutions with ready-to-connect cables, cable bundles and complete wire harnesses with connectors, contacts, or wire-end sleeves. Wire harnessing requires a special electrical engineering know-how to ensure end-to-end quality of product installation and performance. SCHURTER’s widespread offering of components and wire harness … [Read more...]
A Short Perspective On Our Industry: IoT, Wireless & Security
Introduction The term “The Internet of Things” is a concept that went from a novel (like Bitcoin or Streaming or something similar) to a phrase that is as household as a Spying Siri or an Alert Alexa. Way back, when I was a green engineer, the nominal upper frequency for testing PCs and the like was 1 GHz. System clocks ticked along at a blistering 25 MHz. Jump a generation … [Read more...]
Connectivity for Off-Road Vehicles – Part 3
Zonal Architecture for Vehicles Zonal architecture is the name given for the new structure of vehicle electronics. In contrast to a traditional vehicle in which systems are grouped by function, zonal architecture offers a more efficient solution. The functions within a vehicle are grouped by location into several zones. Each zone is responsible for the devices that are … [Read more...]
Connectivity for Off-Road Vehicles – Part 2
The Future of Vehicle Design The next generation of vehicle design will be influenced by four key trends. The first is electrification – the adoption of hybrid and all-electric power as alternatives to traditional fossil fuels. The use of electric power by commercial vehicles has become commonplace in the urban environment, where operators have easy access to charging … [Read more...]
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