Power
Considerations when comparing SiC and GaN in power applications
Silicon Carbide (SiC) and Gallium Nitride (GaN) semiconductor technologies are promising great things for the future. SiC devices in a cascode configuration enable existing systems to be easily upgraded to get the benefits of wide band-gap devices right now. By: Anup Bhalla, VP Engineering, UnitedSic.
Smarter powered medical carts
Global medical battery manufacturer Ultralife Corporation’s URB12400-U1-SMB batteries are now qualified for use with medical cart inverters from Tripp Lite and Ametek Powervar. With this compatibility, medical cart manufacturers and hospital equipment specifiers that were considering traditional lead acid batteries can now benefit from the latest lithium iron phosphate (LiFePO4) technology.
Buck regulators supplies high continuous current at 2MHz
The SiC46X from Vishay is a family of wide input voltage high efficiency synchronous buck regulators with integrated high side and low side power MOSFETs. Its power stage is capable of supplying high continuous current at 2MHz switching frequency. The regulators are available from Rutronik.
Pure Sine Wave Output UPS Series provides up to 4000VA
Powersolve’s PBT Series of uninterruptible power supplies feature a pure sine wave output and are based on a microprocessor-based line interactive design. These new UPS models are generator compatible and incorporate a “green” power facility with an auto on/off function and adjustable level.
Automotive high voltage leakage measurements reference design
The function of this reference design is to monitor the isolation resistance of a high voltage bus to the chassis ground. Monitoring the isolation strength of coupling devices and components from high voltage to the chassis ground is a necessary feature in HEV’s and EV’s as battery management systems, traction inverters, DC/DC converters, onboard chargers, and other subsystems operate at high voltage (greater than 60V).
Three phase power factor correction reference design
The Vienna rectifier power topology is used in high power three phase power factor (AC/DC) applications such as off-board electric vehicle EV chargers and telecom rectifiers. Control design of the rectifier can be complex.
Medical approved 15W DC/DC converter in 1x1.6" package
TRACO POWER has announced the release of the THM 15 family of medical 15W DC/DC converters with a wide 2:1 input range in a 1x1.6x0.40” footprint. The THM 15 series are a reliable solution not only for medical equipment but also for demanding ITE.
Resonant converter reference design uses C2000 MCUs
Resonant converters are popular DC/DC converters frequently used in server, telecom, automotive, industrial and other power supply applications. Their high performance (efficiency, power density, etc.), improving requirements of the various industry standards, and the ever increasing power density goals have made these converters a good choice for medium to high power applications.
Multifunction DC panel meters display voltage, current and power
Murata introduces the new DCM20 series of multifunction panel meters from Murata Power Solutions. For DC systems, these meters measure DC voltage and current, calculate power up to 96kW, and display values either manually selected or continuously cycling. The miniature panel-mount product provides an input voltage range of 0.5-72VDC, with 10mV of resolution. The metre also supports current measurement ranges from 5-1200A when used with an externa...
Full MoPPs isolation power supplies offer up to 18 outputs
TDK has announced the introduction of the QM8 series of AC-DC power supplies, extending the QM series of 700-1,500W modular power supplies to include up to 18 outputs. Having both medical and industrial safety certifications, the QM8 addresses a wide range of applications, including BF rated medical equipment, test and measurement, broadcast, communications and renewable energy applications.