The high level of integration in today’s mmWave phone means traditional test methods no longer apply.
FAQ
FAQ on traction motors, part 1
Traction motors are optimized for locomotives, EVs, elevators, and other situations where high torque at start-up and low speed is needed. Motors are an essential part of many system designs, yet their diverse variations are a mystery to many electrical engineers and a surprising number of mechanical engineers. There are several reasons for general confusion […]
What are three key performance needs for HVAC/harsh environment connectors?
Connectors are complex assemblies whose performance is based on interactions of materials with electrical, mechanical, and environmental factors. Extensive testing is required to ensure proper performance and numerous industry standards have been developed for that purpose. This FAQ reviews 13 tests across three key performance indicators for connectors including electrical, mechanical, and environmental considerations for […]
Design the right BMS for LiFePO4 batteries
By JD DiGiacomandrea, Green Cubes Technology Learn why Lithium-ion-phosphate batteries need the right battery-management system to maximize their useful life. It’s all about chemistry. Lithium-ion (Li-ion) batteries provide high energy density, low weight, and long run times. Today, they’re in portable designs. Their popularity has spawned a few sub-chemistries that all use the principle of…
5G mmWave signal chain: the phase-locked loop
In “Look inside the 5G mmWave signal chain,” we explored the overall architecture of the mmWave signal chain. Now, we’ll look deeper into each of a transceiver’s components. Phase-locked Loops (PLL) are important blocks for a clean reference clock generation in cellular networks. In 5G mmWave radio networks, the PLL supports data rates of 1…
How to improve contact reliability and security in HVAC/harsh environments
Contact security and reliability are important considerations when designing heating ventilation/air conditioning (HVAC) systems and other equipment for use in harsh environments, like outdoors or in industrial facilities. Well-established standards like RAST connectors provide a good alternative, but some applications demand more. Challenges include environmental sealing, contact retention, position optimization, and locking power connectors together […]
How much can GaN improve sustainability and reduce CO2 emissions?
Gallium nitride (GaN) power semiconductors are about less. Less CO2 emission from device fabrication, less materials in the devices and power converters using GaN, less cost due to higher frequency operation and smaller passive components, and less thermal dissipation due to higher efficiencies. Those performance factors combine to improve the sustainability of power converters built […]
What are quantum sensors?
Quantum sensors measure minute changes in electric and magnetic fields as well as motion and the measurements are made at the atomic level. At this scale, information from individual atoms instead of from huge collections of atoms allows quantum sensors to make exponentially more accurate, more thorough, more efficient and more productive measurements. Using the […]
How can digital twins improve power and motion system performance and sustainability?
A digital twin (DT) is a virtual representation of a physical system that spans its lifecycle, is updated using real-time data, and combines simulation, virtual testing, and machine learning to enable cross-functional teams to work collaboratively. Because it’s updated with real-time data, a DT creates a fusion between a modeling environment and real objects that’s […]
What are the key tests for HVAC/harsh environment connectors?
Connectors are complex assemblies whose performance is based on interactions of electrical, mechanical, environmental, and materials factors. Extensive testing is required to ensure proper performance, and numerous industry standards have been developed for that purpose. This FAQ reviews 13 tests across three key performance indicators for connectors, including electrical, mechanical, and environmental considerations for connectors […]