Omron is aiming at electric vehicle chargers and solar photovoltaic installations by adding a low contact resistance model to its two-pole single-throw G7L-2A-X series of PCB-mount relays. G7L-2A-X-SI has 10mΩ maximum contact resistance, compared with 100mΩ maximum for existing members of the family. Nominal rating is 30A at 600Vdc, or 25A at 1000Vdc (but see below). Versions with 12V (190mA ...
Advanced Linear Devices has introduced an IC that will balance four supercapacitors connected in series – to help prevent any of them being damaged by over-volting as they charge. Like other balance ICs in the company’s range, it does not use op-amps and a voltage reference. Instead it has four precision-trimmed mosfets that act as shunt regulators when connected gate-to-drain. ...
Onsemi has announced three silicon carbide power modules for 800V 11 – 22kW on-board charging and high-voltage dc-dc converiosn in electric vehicles – all in transfer moulded packaging, claimed to be a first. “Our modules employ the latest SiC technology to minimise losses and overall system volume, allowing designers to meet charging efficiency and space goals,”, claimed Onsemi general manager ...
Researchers at Stanford University have modelled over-night home charging of electric vehicles and predict that it is not the correct strategy, for the Western US at least. Simulation is based on a model, revealed in March, for charging demand that can be applied to different human populations under different conditions. In a demonstration, they have now applied it to the ...
Penn State university is claiming to be able to charge a Li-ion electric vehicle battery in 10 minutes
Cheltenham-based design company Duku has developed a pop-up electric vehicle charge point, claiming it to be a world first. Six of them are on trial in Oxford. A pop-up design was adopted to reduce street clutter, but the amount of historical architecture and utilities under Oxford pavements meant minimal available underground space. “It’s an absolute mess below the pavement in many ...
AMS has developed a pair of chips that can transfer charging current and data simultaneously over the same pair of wires – intended as an interface for wireless earbud charging. The interface, branded Pow:Com, supplies 5V at up to 150mA for charging and data at 1kbit/s. AS3442 is aimed at the charger cradle (WL-CSP16 package). It includes: Pow:Com interface to AS3447 I2C ...
A fast charging station for electric cars, capable of delivering 350kW to each of several vehicles
Vishay has published an app note on charging its 196 HVC Enycap series of hybrid energy storage capacitor-batteries – which combine electrostatic and faradaic energy storage, in its words – as it looks like these components need a little TLC if they are to last. “For applications requiring a constantly high charge state of the Enycap capacitors, such as solar energy systems and ...
IDT has been allowed to reveal it is providing silicon for Ikea’s forthcoming range of wireless charging furniture. The firm’s P9030 magnetic induction transmitters are embedded in products including side tables and lamps. The transmitter complies with the Wireless Power Consortium’s Qi standard, delivering 5W. IDT also does chips for competing systems from Power Matters Alliance and Alliance for Wireless ...
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