Ron Stull of CUI explains what power factor is, how it affects efficiency calculations and how it is measured With today’s concentration on energy savings, design engineers need to know with increasing accuracy what their ac-dc power converter efficiency is. Measuring the ratio of output power to input power is simple for dc-dc converters, but […]
Modular dc supplies target smart home and IoT apps
The RAC15-K and RAC20-K series are designed for low-power IoT and household applications. These ac/dc modules have ultra-low energy losses especially in light load conditions and minimal standby power consumption. Based on the footprint of the compact RAC10-K modules, these new modules feature high-efficiency over a wide load range. This makes them candidates for the […]
Rugged 100 /50-W power supplies in miniature open frame package
TRACO POWER has announced the release of their TPP 100A-J and TPP 150A-J series of 100 and 150 watt open-frame power supplies. Their high efficiency topology, industrial-grade components and advanced thermal management enable -25°C to +85°C operation, compliance to IEC 60068-2-6 / IEC 60068-2-27 / MIL-STD-810F for shock & vibration, and reliability in excess of […]
Power Electronics Top Talks in September on EDABoard.com forums
Peer-to-peer, engineer-to-engineer questions and answers from the EDABoard.com engineering community around power electronics. Click the “Read more” link and follow the entire conversation and maybe add your two cents by logging in to EDAboard.com MOSFET switchover for E-Bike controller – I’m working on a prototype of an Electric Bike. I am trying to use regenerative energy […]
Temperature indicators protect USB Type-C connectors
Littelfuse has introduced the PolySwitchsetP Series Temperature Indicator, which protects the users of USB Type‑C and USB Power Delivery charging cables from dangerous overheating. The announcement was made in the Littelfuse booth (Hall 4, Booth ED45) at Electronica India, the International Trade Fair for Electronic Components, Systems and Applications, held September 26–28, 2018, at the […]
AC/DC modules provide 5 W for Industry 4.0, IoT and smart home apps
The RAC05-K/277 series includes 5 W ac/dc converters that support peak power needs and are specially designed for extended input lines and reliable operation at extreme temperatures from -40°C up to an impressive +90°C. The RAC05-K/277 series are built to operate from extended input lines with mains voltages from 85 Vac up to 305 Vac, […]
Chassis mount ac-dc power supplies housed in low-profile metal case
CUI’s Power Group today announced a new line of compact, chassis mount ac-dc power supplies housed in an enclosed metal case. The VGS‑B series offers power ratings from 35 to 350 W with low 30 mm profiles and compact packages as small as 99 x 82 x 30 mm (3.89 x 3.22 x 1.18 in). […]
Multi-output ac/dc converters cover 5 to 20-W range
The MORNSUN LHE series ac/dc converters cover the 5-20-W range. The LHE new series includes dual output LHExx-20Axx series, triple output LHExx-20Cxx series and isolated dual output LHExx-20Dxx series. The converters are economical thanks to material normalization, production automation, higher product consistency and reliability. They also feature an operating temperature expanded to -40 to 70℃ […]
Mean Well 5-30-W ac-dc medical grade supplies now available from Sager Electronics
Sager Electronics is now stocking Mean Well’s MFM Series 05-30 Watt AC-DC medical grade power supply. The MFM-05-30 series is a high density, small size AC-DC on-board, medical grade power supply. It features operation from 80-264VAC, a low no-load power consumption less than 0.075W, a high efficiency up to 91%, Class II (no FG) double insulation, outstanding […]
Transformerless chipset offers super-high power density for ac-dc supplies
Fabless power semiconductor company Helix Semiconductors today announced Murata Group represented by Murata Manufacturing Co., Ltd. is the first to co-develop the new MxC 300 transformerless chipset for their AC-DC converter modules. Helix Semiconductors’ MxC 300 is a two-chip solution that offers the highest power density in the industry – up to 20x higher than transformer-based solutions – for 65W […]
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