Power supply news covers innovations in electronics components that ensure stable, efficient energy delivery for devices across industries. From switch-mode power supplies (SMPS) to uninterruptible power supplies (UPS), recent developments focus on miniaturization, higher efficiency, and thermal management. Wide-bandgap semiconductors like GaN and SiC are transforming power electronics, benefiting everything from electric vehicles to data centers. For Electronics Weekly readers, tracking power supply advancements offers insight into smarter, greener, and more reliable energy solutions vital to product development and the performance of modern electronics systems.
Texas Instruments has revealed its proposals for Nvidia’s 800Vdc data centre power supply concept at the Open Compute Summit in San Jose. At the supply end, it described a 30kW 800Vdc Open Rack format voltage source measuring 800 x 160 x 32mm. This takes 480Vac three-phase mains into a three-level flying capacitor power factor correction converter (diagram right), which generates ...
Microchip Technology and power supply maker Delta Electronics are to collaborate on silicon carbide (SiC) based power supply design. “SiC is increasingly important in power solutions because of its wide-bandgap properties, which enable smaller and more efficient designs for high-voltage, high-power applications,” said Microchip’s v-p of high-power components Clayton Pillion. So what exactly is going on? “The partnership enables both ...
For those wanting a little more on the advantages of GaN power transistors in small mains power supplies, ElectrArc240 has created an excellent YouTube video. ElectrArc240 has clearly knows what he talking about and has spent a long time testing different aspects of two similar power supplies to succinctly demonstrate their differences: one with a GaN hemt main switch and ...
XP Power’s CCR range of ac-dc power supplies is rated for BF (body floating) medical use from 110W to 420W. With a 25.4mm profile, there are three difference sizes, where each device has three different power ratings depending on how it is cooled: by forced air, by base-plate conduction or by natural convection: CCR200 79x58mm, 200W fan, 170W conduction, 110W ...
For the gate drivers of high-power IGBTs, mosfets, SiC mosfets and GaN hemts, Infineon has introduced an isolated power supply IC that can generate asymmetric output voltage rails. Each member of the 2EP1xxR family, as it will be known, has a full bridge of mosfets at its output for driving both ends of a transformer primary, whose secondary can be ...
Murata has announced a 600W open-frame ac-dc power supply for medical and industrial use. PQC600 is less than 1U in height, although does need room for forced cooling if it is to reach full power. Certification is to IEC 60601-1 edition 3 medical safety, which includes 2 MOPP (means of patient protection) from primary to secondary, 1 MOPP from the ...
Flex Power Modules is aiming at data centres with a 1kW dc-dc converter in a 23.4 x 17.8 x 7.65mm surface-mount package, leading the company to claim 900W/cm3 and 15kW/in3 at its peak 3kW load. Being a non-isolated and un-regulated contributes to the small size of the converter, called BMR316, as does a peak efficiency of 97.7% (54Vin, 40A/50% load). ...
Vox Power Ltd has announce the EIRE300 series of 300W open-frame ac-dc power supplies for medical and IT equipment use, that measure 4 x 2 x 1inch. 300W is with forced air and only 200W (115Vac) is available continuously if only convection cooling is available – with ambient temperature caveats. Up to 375W can be delivered for 1s. Different models ...
TDK-Lambda has announced a series of rugged conduction-cooled dc-dc buck converters rated up to 750W. They come in a five-sided conduction cooled aluminium housing that measures 38.1 x 49.5 (39.4) x 13mm including (ignoring) mounting tabs. None are isolated and all have a single regulated output, remote on-off, remote sense and output trim – through a standard 1/16th brick through-hole ...
Recom has created a 15W ac-dc power supply range that meet a wide range of international specifications including those for medical use. RACM15E-K supplies come in 80 x 23.8 x 22mm open-frame form with Molex connectors (photo below), or in a 83 x 26.4 x 29.5mm IP20 enclosure with push-in terminals and a DIN rail clip (right) – they are ...
