Power conversion startup FINsix has announced the development of what it claims is the world's smallest laptop power adapter. Packaged as a standard wall plug (see figure below), the 65-W unit is one fourth the size and one sixth the weight of traditional adapters, and is based on the company's VHF power conversion technology that allows switching speeds of between 30 and 300 MHz. The adapter is expected to be shown at next month's CES and to be commercially available sometime in mid 2014.
A miniature 65-W wall-plug laptop power adapter from startup FINsix uses very-high-speed switching to shrink its size to one fourth that of traditional adapters.
Researchers at the University of Twente (Netherlands) have developed a superconducting cable system that promises to make nuclear fusion reactors more reliable (see figures below). The new cables were created using a unique interweaving technique that makes them far less susceptible to heating than previous approaches, resulting in an increased working life and improved control of the plasma in the reactor core.
Researchers have developed a new superconducting cable system that is crucial to the reliable control of the plasma core in nuclear fusion reactors. (Courtesy University of Twente)
Key to the new superconducting cable design is the interweaving technique used, which makes them less susceptible to heating and able to withstand the forces inside the reactor for a longer time. (Courtesy University of Twente)
The wrist-thick cables around coils with a total height of 13 m inside the fusion reactor consist of interwoven wires with a thickness of 0.8 mm. (Courtesy University of Twente)
In product news, Linear Technology has announced a new addition to its LDO+ family. The LT3086 low-dropout adjustable linear regulator has an output current capability of 2.1 A and operates over a 1.4 to 40V input supply range. The company also introduced high-reliability H-grade and military MP-grade versions of its LTC3615 and LTC3615-1 high-efficiency 4-MHz synchronous buck regulators.
Nordic Semiconductor has announced the availability of the Bluetooth LE-based S120 8-link central protocol stack and nRF51 Wireless Charging SDK for wireless charging applications based on the Rezence standard. Together, the S120 and nRF51 Wireless Charging SDK provide a solution for the Out-of-Band (OOB) signaling part of a Rezence charge pad.
Diodes Incorporated has announced the mains-dimmable AP1694 LED lamp driver, which claims to enable total BOM cost reductions of between 10% and 15%. The company also announced the ZXBM5210 reversible DC motor driver and the NIS5132 resettable electronic fuse.
A new dimmable LED driver from Supertex is suited for offline LED bulbs, tubes, and
similar lighting application. The PS30 is intended to drive a single switch, single inductor power converter directly from a 110V or 220V AC line for power levels up to 20W.
Dual 12-A non-isolated PoL modules from GE Critical Power claim a 30% reduction in board space over competing solutions. The UDXS1212 DLynx* Series power modules include a PMBUS interface as well as adaptive voltage scaling.
Murata has introduced the Murata Power Solutions D1U86G series of 1U form factor 12-V 460-W front-end power supplies. The units are available with either back-to-front or front-to-back airflow.
Finally, Vishay Intertechnology has extended its 159 PUL-SI series of snap-in power aluminum capacitors to a high rated voltage of 500 V at +105°C.