Energy efficiencies made possible by gallium-nitride semiconductors are starting to impact every day products. Paul Wiener • GaN Systems, Inc. | Ron Stull • CUI, Inc. Wide-bandgap power semiconductors are in production now and recommended for new designs. The earliest adopters among power supply OEMs have already begun introducing new product lines employing this technology […]
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Prepare for IEC 62368-1, the new hazard-based safety standard
Get ready to evaluate safety measures in a different way. JEFF SCHNABEL, CUI THE FAMILIAR 60950-1 AND 60065 SAFETY STANDARDS for information and communication technology (ICT) and audio-visual (AV) equipment are being phased out in 2020, in favor of a single, harmonized standard based on a more modern approach to safety and testing. OEMs must […]
Finalists announced for prestigious power electronics LEAP Awards
Four finalists were announced Friday for the inaugural LEAP Awards’ Power Electronics Category, comprising a broad array of new advances in power semiconductor and power management technology. The competition was scored by a panel of independent technical/engineering judges. This year’s inaugural LEAP Awards competition honored ground-breaking new products that set a new standard for innovation. […]
Compact open-frame ac-dc supplies carry IEC 60601-1 4th Edition medical approvals
Five open-frame series from CUI Inc., ranging from 180 W up to 550 W, are certified to the medical 60601‑1 edition 3.1 safety standards for 2 x MOPP applications and 4th edition EMC requirements. The VMS‑180, VMS‑225, VMS‑275, VMS‑350, and VMS‑550 series feature energy efficiency up to 94% and power densities up to 30 W/in3. […]
Early warning for EMC problems
Engineers who wait until the end of the design phase to check for unwanted electromagnetic emissions run the risk of incurring big delays. Bruce Rose | CUI Inc. One design activity often left to the end of a project is the verification a product meets electromagnetic compatibility (EMC) emissions requirements. Considering EMC compliance earlier in […]
Open-frame supplies hit 30 W/in3 densities
The VOF‑180 and VOF‑225A series, outputting 180 W and 225 W of continuous power respectively, feature high efficiencies up to 94% and high power densities up to 30 W/in3. Housed in compact, low profile packages measuring as small as 2x4x0.75 in. (50x101x19 mm), these ac-dc power supplies provide space and energy saving benefits for IT […]
Special bearings let dc axial fans operate at any angle
The CFM-V line of dc axial fans incorporates an innovative omniCOOL system. that enables rotor-balancing to minimize tilt, wobble, and friction, the omniCOOL system allows for fan operation at any angle. It also reduces the need for lubricant, further reducing fan noise and friction. In addition, the bearing system extends operational life by utilizing a […]
3-W isolated dc-dc converters deliver 4:1 input range in SMT packages
The PQME3 series of 3-W isolated dc-dc converters are housed in compact, industry standard 14-pin surface mount packages measuring 0.76×0.71×0.40 in (19.20 x 18.10 x 10.16 mm) and provides a rugged, low-power solution for a variety of industrial, test and measurement, and telecommunication applications, thanks to its encapsulated design. Developed by CUI, the 3-W series […]
Peltier modules employ elastic resin layer structure
CUI’s Thermal Management Group today announced a new line of high-performance Peltier modules that boasts superior performance and reliability, thanks to its innovative arcTEC™ structure. This unique construction utilizes a combination of thermally conductive resin between the ceramic and copper on the cold side of the module, high-temperature solder, and larger P/N elements made from […]
30/40-W external supplies comply with DoE Level VI, CoC Tier 2 Standards
The SDI30-U, SDI30-UD, SDI40-U, and SDI40-UD series external power supplies from CUI are all designed to meet the current average efficiency and no-load power requirements mandated by the US Dept. of Energy (DoE) under the Level VI standard. All models also meet the European Union’s (EU) proposed CoC Tier 2 directive, under review to become […]
