by Alex Lidow, CEO, Efficient Power Conversion Corp. It can be tricky to analyze power supply designs incorporating GaN power devices. Here are the basics of calculating losses and device currents when using these exotic semiconductors. There is a lot of activity in wide-bandgap semiconductors these days. They have the ability to operate at much […]
MOSFETS
Cree MOSFET, Schottky diode design kit
Cree, Inc. has introduced a new Cree MOSFET design kit that includes all of the components needed to evaluate Cree® MOSFET and Schottky diode performance in a configurable half bridge circuit. Quick and easy to assemble and use, the new design kit enables comparative testing between IGBTs and Cree MOSFETs, and provides an effective layout […]
IR’s Family of Battery Protection MOSFETs Offers Cost-Effective, Flexible Solution for Mobile Applications
International Rectifier, IR® (NYSE: IRF) announced the introduction of an extensive portfolio of devices featuring IR’s latest low-voltage MOSFET silicon for lithium-ion battery protection applications including the IRL6297SD dual N-channel DirectFET® MOSFET. Featuring very low on-state resistance (RDS(on)) to significantly cut conduction losses, the new power MOSFETs are available as 20V and 30V devices in […]
Converters work with IGBT gate drives
Murata has announced the MGJ3 and MGJ6 series of configurable output voltage, high isolation DC-DC converters from Murata Power Solutions. These 3 Watt and 6 Watt surface mounted devices are optimized for use as high-side and low-side gate drivers in IGBT and MOSFET bridge circuit designs. Providing triple output voltages of +15, +5 and +5 […]
Spice model for SiC MOSFETs
Cree, Inc., has expanded the company’s design-in support for the C2M Series SiC MOSFET power devices with the release of a new SPICE model. Fast and accurate, the new model effectively demonstrates the benefits of Cree SiC MOSFETs – including the C2M0025120D device, which recently pierced the on-resistance barrier by delivering 1200 V of blocking […]
20-A SiC module targets15-kW 3-phase apps
Cree, Inc. (Nasdaq: CREE) has expanded the award-winning silicon carbide (SiC) 1.2 kV six-pack power module family with a new 20A all-SiC module ideally suited for 5-15 kW three-phase applications. Based on Cree’s C2M™ SiC MOSFET and Z-Rec® SiC Schottky diode technology, the six-pack module enables designers to unlock the traditional constraints of power density, […]
IR’s 40V 5x6mm dual PQFN COOLiRFET™s deliver benchmark performance
International Rectifier, IR® (NYSE: IRF) announced the introduction of the AUIRFN8459 and AUIRFN8458 40V automotive-qualified COOLiRFET™ power MOSFETs that offer benchmark on-state resistance (RDS(on)) for automotive applications requiring compact size and high current performance including pump motor control and automotive body control. The AUIRFN8459 and AUIRFN8458 are the first in a family of automotive-qualified 5x6mm […]
Biasing bipolar transistor circuits
Bipolar transistors used in linear applications need “biasing”, as do other transistors (JFET, MOSFET) when used for linear applications rather than as switches. When used as a “switch” you simply want the transistor to be ON or OFF and don’t really care about having in-between states, although when you are switching high power or switching […]
85-V MOSFETs have adaptive dead-time, shoot-through protection
Micrel Inc., (Nasdaq:MCRL) introduced the MIC4606, an 85V Full-Bridge MOSFET driver that features Adaptive Dead Time and Shoot-Through Protection. The device is part of Micrel’s highly successful 85V MOSFET Driver family first launched in 2013 and is designed to focus on the growing power needs of multiple applications. The 85V MIC4606 family is part of […]
Gallery: Scenes from the IEEE ECCE conference
The IEEE Energy Conversion Congress and Exposition took place last week in Pittsburgh. The clear trends based on exhibits on the show floor included a lot of interest in SiC power devices and in alternative topologies for inverters. Here are a few of the more interesting sites we encountered there. SiC on display The Center […]
