Fujitsu Components America, Inc. has expanded its automotive relay offering with a new 12VDC PCB relay featuring a switching capacity of 50A at 14VDC. The FBR53-HC offers a higher contact rating than its 40A FBR53-HW counterpart, yet occupies the same 12.1 x 15.5 x 13.7mm footprint and weighs the same 6g. With a maximum carrying […]
Power Management
DC-disconnect switches handle up to 1.5 kV
Littelfuse, Inc. announced the introduction of its DC Disconnect Switch product line. The Littelfuse LS6 (available in 1000 and 500 V) and the LS6R (available in 1500 V) series are energy-efficient, compact disconnect switches that quickly break or resume the flow of current safely. Offered in both 250 and 400 amperage ratings, these switches prevent […]
PMIC sports four buck-boost channels single one inductor in compact package
The breakthrough MAX77655 single-inductor multiple-output (SIMO) power management IC (PMIC) from Maxim Integrated Products, Inc.provides the highest-density power solution for extremely compact next-generation devices. This PMIC delivers a 70 percent reduction in solution size compared to the nearest competition, with 700mA across four buck-boost channels and only one inductor required for a total solution size […]
Fast switching 600-V super junction MOSFETs come in SMD-type package
Alpha and Omega Semiconductor Limited announced the release of a fast switching 600V αMOS5 Super Junction MOSFETs in SMD-type TOLL Package. αMOS5 is AOS’s latest generation of high voltage MOSFET, designed to meet the high efficiency and high-density needs for quick charger, adapter, PC power, server, industrial power, telecom, and Hyperscale datacenter applications. The new aMOS5 […]
Batteries and charging for wireless IoT sensor nodes and wearables
Battery selection for a given wireless Internet of Things (IoT) node or wearables design is complex. Among the important factors are: how long the device is expected to operate with a single battery; the choice between various primary and secondary battery chemistries; the nominal and cut-off voltage of the electronics; the energy/current consumption profile, the […]
Power consumption testing for wireless IoT sensor nodes and wearables, Part 2
Part one of this FAQ series focused on the various types of components available for designing power systems for wireless Internet of Things (IoT) sensor nodes, wearables, and similar applications. This FAQ focuses on measuring and validating the performance of those power systems. There are several instruments and approaches available for measuring and testing the […]
eGaN 170-V FETs optimized for synchronous rectification apps
Efficient Power Conversion Corporation advances the performance capability while lowering the cost of off-the-shelf gallium nitride transistors with the introduction of the EPC2059 (6.8 mΩ, 170 V) eGaN FET. This device is the latest in a family of 100 V – 200 V solutions suitable for a wide range of power levels and price points. […]
SMD MOSFETs cut losses in motor drive applications
Infineon Technologies AG supports the robotics and automation industry in implementing maintenance-free motor drive inverters. By introducing the new CoolSiC MOSFET with.XT interconnection technology in a 1200 V optimized D 2PAK-7 SMD package, passive cooling becomes possible. Up to 80 percent loss reduction compared to a silicon-based solution eliminates the need for cooling fans and […]
Power conversion considerations for wireless IoT nodes and wearables, Part 1
Power system considerations are an important aspect of all system designs. In the case of wireless Internet of Things (IoT) nodes and wearables, power system design is complex, with the need to balance numerous performance tradeoffs. It is critical to arrive at a successful design that maximizes both battery life and overall functionality. Fortunately, there […]
40 W ac-dc power supplies target medical applications
RECOM has extended its range of industrial and medically-approved AC/DC power supplies rated at 40W in a tiny 1.6” x 3” footprint for open frame versions and 1.8” x 3.2” for potted versions. The RACM40-K series typically achieves 90% efficiency across a wide line and load range and despite the ultra-compact size, operates up to […]