Wireless Power, GaN and Motor Control
Maurizio Di Paolo Emilio
Content Editor & Technical Writer | Ph.D in Physics | Power Electronics, Wide Bandgap, Renewable Energy, Embedded Systems, Quantum Computing
The Rise of Wireless Power Networks
By Cesar Johnston
Soon, internet-connected devices will outnumber all of Earth’s humans by a ratio of 5:1. That’s according to analyst firm IDC, which projects a 3× increase in the global IoT ecosystem between now and 2025, when the number of internet-of-things devices is expected to reach 39.3 billion, up from about 12 billion devices today. This exceptional growth brings with it both tremendous potential for positive outcomes from IoT deployments as well as concerns around how to reliably power these billions of devices that are often located in rugged, hard-to-reach environments and/or away from central power sources.
Enabling High Power Density and Efficient Systems with GaN
By David Snook
领英推荐
Gallium nitride is a popular topic in the power electronics industry, as it enables highly efficient designs for applications such as telecom power supplies; electric vehicle charging; heating, ventilation, and air conditioning; appliances; and consumer power adapters. In industrial applications, Gallium Nitride replaces traditional silicon metal-oxide-semiconductor field-effect transistors (MOSFETs), given its ability to drive higher power density and efficiencies as high as 99% for totem-pole power-factor correction (PFC). But because of its electrical properties and the performance that it enables, designing with GaN comes with a different set of challenges than silicon or even other wide-bandgap technologies, such as silicon carbide.
Motor Drive ICs Use Built-In System Fault Diagnosis to Reduce Field Returns
By Cristian Ionescu Catrina
Designers are increasingly challenged by demands for continuous improvements in the efficiency and reliability of motor drives in consumer appliances. From the European Union to China, higher efficiencies are required for a growing range of consumer appliances, including dishwashers, refrigerators, and heating, ventilation, and air conditioning (HVAC) systems.1,2?Designs are also required to comply with IEC 60335-1 and IEC 60730-1 safety requirements.