Allegro Microsystems announced the launch of the ACS37002 family of advanced Hall-effect current sensors. The ACS37002 has 400kHz sensing bandwidth up to 180 A with low offset and better than 1% typical total accuracy over the full -40°C to 150°C automotive temperature range. The high-speed operation allows customers to operate at higher switching frequencies and […]
Semiconductor
Hybrid semiconductor technology replaces MOV devices for AC circuit protection
ProTek Devices has introduced a new patent-pending series of hybrid semiconductor components for AC power supply circuit protection in consumer and industrial applications like home appliances, industrial equipment automation controls, instrumentation, and SMART meters. The new semiconductor technology is an ideal replacement for surface mount metal oxide varistor (MOV) devices. The PHYTVSxxxV3 series is designed […]
Outer-loop control IC handles brushless DC and DC brush motors
Performance Motion Devices, Inc. announced the availability of Juno Outer Loop Control ICs, new members of the Juno family of Velocity & Torque Control ICs which provide functions for spindle control, centrifuge control, precision torque control, and a wide variety of other liquid handling and laboratory automation applications. Juno outer loop control ICs are available […]
Power chipset provides 650 A continuous, 1,200-A peak for high-performance GPU, CPU, ASIC processors
Vicor Corporation announced a ChiP-set for high-performance GPU, CPU, and ASIC (XPU) processors powered directly from 48V. A driver, MCD4609, and a pair of MCM4609 current multiplier modules supply up to 650A continuous and 1,200A peak. Owing to their small footprint and low profile (45.7 x 8.6 x 3.2mm), current multipliers are placed close to […]
How wide bandgap technologies stack up
Cutting-edge power device technologies all have a niche. Here’s a rundown on the applications in which each one likely fits. Dr. Gerald Deboy, Dr. Peter Friedrichs Infineon Technologies The process of converting electrical power to different ac and dc levels and to mechanical motion has changed dramatically over the years. The development of “switched-mode” techniques […]
The try-before-you-buy route to energy efficient power design
Evaluation platforms help pick SiC components in power conversion circuits. Xuning Zhang, Levi Gant, Littelfuse, Inc. The quest for greener energy production and consumption has put a premium on high-efficiency power circuitry. In that regard, many modern power supplies and converters operate at much higher voltages that allow use of lower currents to minimize I2R […]
Ultra-thin bus switches save board space
Diodes Incorporated announced that its family of quad- and dual-channel are now available in an ultra-thin QFN (UQFN) package. The UQFN package makes it easier for OEMs to increase PCB density and reduce product dimensions when developing PC notebooks and tablets as well as networking and telecommunications equipment. Discrete logic devices, such as bus multiplexers […]
Get ready for SiC-GaN combo power transistors
Researchers in Sweden have come up with a way of putting gallium-nitride transistor structures on a silicon-carbide substrate that potentially lowers the ON resistance of power FETs by an order of magnitude below that of commercial devices available now. The scientists hail from Sweden’s Linköping University and SweGaN, a spin-off company from materials science research […]
Researchers find ways to integrate GaN power circuits onto ICs
This year’s IEEE International Electron Devices Meeting (December 7-11, 2019) played host to presentations describing advances in gallium-nitride technology that may lead to smaller, more integrated power circuitry such as single-chip switching power supplies and more efficient power transistors. The IEDM is considered one of the premier technical conferences for developments in semiconductor and integrated […]
SiC FETs feature RRS(on) below 10 mΩ for high efficiency, low losses
Four new SiC FETs deliver RDS(ON) levels as low as 7 mΩ, delivering unprecedented levels of performance and efficiency for use in high-power applications such as electric vehicle (EV) inverters, high-powered dc/dc converters, high-current battery chargers and solid-state circuit breakers. Of the four new UF3C SiC FET devices, one is rated at 650 V with […]
