By Shao Zhang, Qorvo Understanding the differences between trapezoidal, sinusoidal, and field-oriented control can help engineers understand the value of Field Oriented Control (FOC) and the choices available to optimize their designs. BLDC motors can be smaller, lighter, and quieter than traditional brushed DC motors while enhancing the reliability and energy efficiency of consumer, industrial, […]
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Qorvo claims lowest on resistance in SiC JFET TOLL package for circuit breakers
Qorvo announced the industry’s first 4-milliohm silicon carbide (SiC) junction field effect transistor (JFET) in a TOLL package. It was designed for circuit protection applications including solid-state circuit breakers, where low resistance, superior thermal performance, small size, and reliability are paramount. With RDS(on) of just 4 milliohms, the UJ4N075004L8S offers the industry’s lowest on-resistance among the 650V […]
How soft switching and SiC devices improve power conversion
By Mike Zhu, Qorvo Soft switching in DC-DC converters reduces energy loss. SiC transistors allow for higher switching frequencies and, thus, smaller magnetics, which reduces heat. Efficiency and power density are both essential factors in the design of power converters. Every contributor to energy loss generates heat that needs removal by costly and power-hungry cooling […]
APEC 2023 round-up
The Applied Power Electronics Conference (APEC) has grown over the course of a few decades to be the leading conference in North America for power electronics professionals. This past month, March 19th to the 23rd, in Orlando, APEC returned to share the latest trends, technologies, and opportunities in power electronics with industry and academia alike. […]
Efficient 750-V SiC FETs target onboard chargers, soft-switched converters
Qorvo announced seven 750V silicon carbide (SiC) FETs in the surface mount D2PAK-7L package. With this package option, Qorvo’s SiC FETs are tailored for the rapidly growing applications of onboard chargers, soft-switched DC/DC converters, battery charging (fast DC and industrial) and IT/server power supplies. They deliver an optimal solution for high-power applications that require maximum efficiency, […]
High figures of merit characterize 1,200-V Gen 4 SiC FETs
Qorvo announced a next-generation series of 1200V Silicon Carbide (SiC) Field Effect Transistors (FETs) with industry-leading figures of merit in on-resistance. The new UF4C/SC series of 1200V Gen 4 SiC FETs are ideally suited for mainstream 800V bus architectures in onboard chargers for electric vehicles, industrial battery chargers, industrial power supplies, DC/DC solar inverters, as well as […]
Inside a modern power management IC
PMICs today do a lot more than just regulate voltages. Here’s a look at high-end functions these devices provide. Narasimhan Trichy • Qorvo Superior power management and high efficiency have become essential as electronics have become increasingly smaller and more streamlined. The reduction of power dissipation and consequent heat and thermal issues is critical to […]
Fundamentals of fast chargers for phones and notebook PCs
Overlapping protocols and competing standards have created a confusing landscape for USB chargers. Here are the important differences and similarities of most interest to designers. Masashi Nogawa, Staff Systems Engineer Qorvo The first standard for charging via USB connections allowed power delivery at a 7.5-W maximum. Recently the USB standard jumped up to support 100 […]
Energy efficiency, smart lighting, and the IoT
Sure, smart lighting will save energy, but they’ll also be the backbone of systems that can help minimize mini-catastrophes. CEES LINKS, Qorvo THE IoT (internet of things) INCLUDES a rich offering of energy efficiency benefits. Smart lighting is, of course, one of the most common elements of any IoT energy efficiency discussion. Lighting is a […]
