Nanotechnology startup StoreDot has demonstrated a fast-charge battery prototype that is claimed to be able to charge smartphones and other devices in just 30 seconds (see video demo (1:27) below).
The battery's electrodes are based on multifunctional "nanodots" derived from bio-organic material, enabling both very fast supercapacitor-like charging on one side and slow discharge -- like a lithium electrode -- on the other. The company anticipates that the battery technology may be on the market within three years.
A compact electromotor prototype has been presented that integrates the motor, gear drive, and inverter, and uses no rare earth metals. The "MotorBrain" -- a collaboration among Infineon Technologies, Siemens, the Institute of Lightweight Engineering and Polymer Technology at the Technische Universität Dresden, and ZF Friedrichshafen -- reduces the weight of the powertrain from previous models to less than 70 kg and can fit in a laptop or notebook backpack. According to the researchers, the MotorBrain could extend the driving distance of a midsized vehicle 30 km to 40 km farther than today's electric vehicles.
The MotorBrain electric motor prototype integrates the most important components of the powertrain for an electric vehicle and is only three-quarters the size of 2011 models.
In product news, Linear Technology has announced a high-efficiency secondary-side MOSFET driver that operates without the need for a traditional pulse transformer for primary- to secondary-side communication. The LT8311 operates from 3.7 to 30 V and is used with a primary-side IC like the LT3752/-1 for up to 400-V+ inputs.
Intersil has introduced small-form-factor 60V, 1A/2A peak half bridge drivers designed for applications using DC motors, three-phase brushless DC motors, or similar loads. The HIP2103/HIP2104 feature a 5-µA sleep-mode quiescent current, 3.3-V and 12-V LDOs with dedicated enable pins (HIP2104), and 4-V undervoltage lockout.
Exar has extended its PowerBlox family of switching regulators. The XR76108, XR76112 and XR76115 synchronous step-down regulators deliver point-of-load supplies of 8, 12, and 15 A, respectively.
An audio driver IC from International Rectifier provides protected PWM switching for class-D audio amplifier applications. The IRS20965 operates up to 800 kHz and offers a VOFFSET(max) of ±100 V and a gate drive of 2 A.
Silego Technology has introduced a couple of new GreenFET3 load switches. The SLG59M1527V 16-mΩ dual-channel device handles 4.5 A max current per channel, while the SLG59M1557 28-mΩ P-channel device can achieve 0.1 uA typical and 1 uA maximum quiescent current in both ON and OFF states.
New compact DIN-rail dc/dc converters from CUI are housed in 76 x 31.5 x 25.8-mm packages with all electrical connections easily accessible via screw terminals. Available across three series -- PYB10-DIN, PYB15-DIN, and PYB20-DIN -- the 47 modules have an output range of 10 Wto 20 W with input ranges of 9 Vdc to 36 Vdc or 18 Vdc to 75 Vdc for battery-driven applications.
Finally, Molex has announced an orthogonal direct-power connector system designed for routing power to backplane line cards in networking and telecom applications. The EXTreme OrthoPower connector system uses a dedicated power card to power each line card for 30.0 A in-and-out-routing, and delivers a total of 60.0 A per module via split-blade technology.