Cooling fans designed for environments more harsh than an office building may carry a special IP rating that designates resistance to different levels of dust and moisture. Here are a few basics when it comes to the differences between fans made to different IP ratings. The IP in IP rating stands for ingress protection. IP […]
Support package lets Simulink models run on MCUs
The flexiTARGET Simulink Target Support Package (TSP) allows engineers to target their models for a range of real-time hardware. Users can target Simulink models to their chosen microcontroller. Key benefits of flexiTARGET include support for GCC and other low-cost compilers, and support of any Matlab version including 2016b and beyond. flexiTARGET consists of a number […]
MOSFET targets high-power SMPS using resonant topologies
Superjunction MOSFET technology called the 600-V CoolMOS CFD7 is part of the CoolMOS 7 series from Infineon. This new MOSFET addresses the high power SMPS market for resonant topologies. It offers industry-leading efficiency and reliability in soft switching topologies like LLC and ZVS PSFB. This makes it a candidate for high-power SMPS applications such as […]
Removable lid-spring pin socket for QFN, DFN packages
A new QFN socket addressing high-performance requirements for custom-sized devices is called the CBT-QFN-7056. The contactor is a stamped spring pin with 14.5-gram actuation force per pin and cycle life of 50,000 insertions. The self-inductance of the contactor is 0.98 nH, insertion loss of < 1 dB at 31.7 GHz and capacitance 0.067 pF. The […]
Fuses that blow safely
New fuse technology designed specifically for electric vehicles helps meet stringent automotive reliability standards. <strong>Mike Roach | AEM Components Inc. Electric vehicles (EVs) and hybrid electric vehicles (HEVs) now use high-energy lithium battery systems. These power sources have spurred a need for a reliable means of protecting against catastrophic failures. Resettable devices are suitable for […]
Tougher stress tests for automotive MOSFETs
Current automotive quality standards may not be selective enough for power electronic devices that will run next-generation vehicles. Device makers are responding with their own more stringent test regimes. Aleksandra Kozyczak, Lourdes Garcia | Infineon Technologies Modern vehicles rely heavily on electronic systems. Each electronic component in these systems is a source of potential failure. […]
The fundamentals of supercapacitor balancing
The low voltage available from a single supercapacitor forces most applications to use several supercaps in series. Here are the tricks involved in stringing these components together. Robert Chao | Advanced Linear Devices Inc. The average supercapacitor has a maximum charging voltage of between 2.5 and 2.7 V. For many applications a voltage this low […]
Efficient cooling for EV battery packs thanks to CFD
Advanced 1D and 3D computational fluid dynamics simulation techniques can help analyze the thermal properties of battery cooling packs powering electric vehicles. Doug Kolak, Boris Marovic, Steve Streater | Mentor, A Siemens Business The cooling system for an electrical vehicle’s battery pack is slightly less complex than that for a hybrid. It is generally a […]
Longer battery life for hearables and wearables
Single-inductor, multiple-output circuitry can provide the kind of high conversion efficiency necessary for super-small consumer electronics. Cary Delano, Reno Rossetti | Maxim Integrated When you’re designing hearables and wearables, user experience dictates that long battery life is a key requirement. Nobody wants to stop and recharge the batteries on their earbuds during a long walk […]
1 kW, 1.5 kW power supplies have medical safety certifications
The RWS1000B and RWS1500B “ME” RWS-B series medical ac-dc power supplies provide 1,000 W and 1,500 W power levels certified to the medical IEC 60601-1 standard. The seven-year warranty RWS-B series is a candidate for medical, cosmetic laser treatment and analysis equipment requiring less than 300 µA earth leakage current. The 1,000 W and 1,500 […]