tag: wireless charging

State-Space Model Of An Electro-Mechanical-Acoustic Contactless Energy Transfer System Based On Multiphysics Networks
By Fraunhofer IIS/EAS - 11 May, 2022 - Comments: 0

Contactless energy transfer systems are mainly divided into acoustic, inductive, capacitive and optical, in which main applications are related to biomedical, wireless chargers and sensors in metal enclosures. When solids are used as transfer media, ultrasound transducers based on piezoelectricity can be used for through-wall power transfer, which can be named as electro-mechanical-acoustic con... » read more

Power/Performance Bits: Oct. 5
By Jesse Allen - 05 Oct, 2021 - Comments: 0

Modeling resistive-switching memory Researchers from Singapore University of Technology and Design (SUTD) and Chang Gung University developed a new toolkit for modeling current in resistive-switching memory devices. The team said that traditional physical-based models need to consider complex behaviors to model current in resistive memory, and there's a risk of permanent device damage due t... » read more

Power/Performance Bits: May 4
By Jesse Allen - 04 May, 2021 - Comments: 0

Speculative execution vulnerable again Computer scientists from the University of Virginia and University of California San Diego warn of a processor architecture vulnerability that gets around the techniques used to secure processors in the wake of Spectre. In 2018, Spectre and the similar Meltdown vulnerability were announced. These types of attacks could allow malicious agents to exploit... » read more

Power/Performance Bits: Nov. 3
By Jesse Allen - 03 Nov, 2020 - Comments: 0

Wirelessly charging multiple devices Researchers from ITMO University developed a metamaterial that can be used to turn surfaces into wireless charging areas for multiple devices from different manufacturers with different power transfer standards. "There are various wireless power transfer standards with different frequencies, so you can't just use a charger by any manufacturer," said Poli... » read more

Wireless Power Market Heats Up
By Bryon Moyer - 26 Aug, 2020 - Comments: 2

The wireless power market is in flux as established technologies meet newer approaches. Old standards battles have simmered somewhat, but competing messages remain. What the public ends up using will depend heavily on public charging infrastructure, but the stakes are significant. The market for battery chargers is forecast to reach $25B by 2022. Most of those chargers plug into the wall, bu... » read more

Power/Performance Bits: July 21
By Jesse Allen - 21 Jul, 2020 - Comments: 0

AI hardware Researchers at Purdue University, University of California San Diego, Argonne National Laboratory, University of Louisville, Brookhaven National Laboratory, and University of Iowa developed hardware that can learn skills, offloading some of the energy needed by AI software. "Software is taking on most of the challenges in AI. If you could incorporate intelligence into the circui... » read more

Power/Performance Bits: Feb. 5
By Jesse Allen - 05 Feb, 2019 - Comments: 0

Photonic-magnetic memory Researchers at the Eindhoven University of Technology (TU/e) have developed a hybrid photonic-magnetic memory device that takes advantage of the speed of optical writing and stability of magnetic drives. "All-optical switching for data storage has been known for about a decade. When all-optical switching was first observed in ferromagnetic materials - amongst the mo... » read more

Power/Performance Bits: Mar. 13
By Jesse Allen - 13 Mar, 2018 - Comments: 0

Wireless charging Engineers at the University of Washington developed a method to safely charge a smartphone wirelessly using a laser, potentially as quickly as a standard USB cable. Safety features of the system include a reflector-based mechanism to shut off the laser and heatsinks. The charging beam is generated by a laser emitter that the team configured to produce a focused beam in the... » read more

Power/Performance Bits: Sept. 26
By Jesse Allen - 26 Sep, 2017 - Comments: 0

Long-range communication Researchers at the University of Washington developed devices that run on almost zero power can transmit data across distances of up to 2.8 kilometers. The long-range backscatter system, which uses reflected radio signals to transmit data at extremely low power, achieved reliable coverage throughout 4800-square-foot house, an office area covering 41 rooms and a one-acr... » read more

Power/Performance Bits: June 27
By Jesse Allen - 27 Jun, 2017 - Comments: 0

Superconducting nanowire memory cell Researchers at the University of Illinois at Urbana-Champaign and the State University of New York at Stony Brook developed a new nanoscale memory cell that provides stable memory at a smaller size than other proposed memory devices, and holds promise for successful integration with superconducting processors. The device comprises two superconducting nan... » read more

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