Researchers at the Fraunhofer Institute for Ceramic Technologies and Systems IKTS (Dresden) are developing a compact, simple home fuel cell system that can be installed and maintained like a common household gas heater. Based on a solid oxide fuel cell using a ceramic electrolyte, the device generates 1 kW of electricity from natural gas and can be wall mounted (see image below). For more, see "The Fuel Cell for Home."
Production of the cell stacks of the home fuel cell system at the Fraunhofer IKTS.
(Source: Fraunhofer IKTS)
The Alliance for Wireless Power (A4WP) has announced more than a tripling of the available power for its Rezence wireless charging standard to 50 W, expanding the range of products capable of using the technology to include tablets, laptops, and other electronics. According to A4WP, the spec and certification program will be upgraded by the end of the year. For more see "A4WP Announces the Expansion of the Rezence Standard to 50 Watts to Include Tablets, PCs and Peripherals."
In product news, a USB power delivery controller from Microchip Technology enables a single USB cable to be used for data and simultaneously to deliver up to 100 W of power from a single standard USB port. The UPD1001 supports the 5 USB-IF standard UPD power profiles plus an additional 25 UPD-compliant profiles.
Dialog Semiconductor has introduced a switching charger IC targeting USB-powered smartphones, tablets, and wearable devices. The DA9150 features an integrated fuel gauge and achieves over 90% efficiency.
STMicroelectronics has announced an automotive Class D power amplifier with full digital architecture. The FDA2100LV features a 105-dB dynamic range, an I2S and TDM digital input, and a step-up driver allowing up to 150-W output (@ 14 V supply voltage).
POL DC/DC converters from TDK-Lambda feature digital control and real-time monitoring of voltage, current, and temperature, as well as full programmability, via the PMBus. The 60-A iJB series operates from an input of 8 to 14 V and provides an output of 0.6 to 2 V, with precision set-point accuracy of 0.5%.
Intersil has introduced a fully encapsulated step-down switching power supply capable of providing up to 100 W. Occupying a 17 x 17-mm footprint, the ISL8240M offers two separate outputs of up to 20 A per channel or a single 40-A output. The company also announced the ISL6388 Intel VR12/12.5-compliant digitally programmable multiphase PWM controller for server and high-end desktop applications.
Finally, X-REL Semiconductor has introduced a 1.5-A ultra-low-dropout linear regulator intended for high-reliability, extreme-temperature, and extended-lifetime power supply applications. Operating with input voltages from 2.8 to 5.5 V, the XTR70010 features a dropout of 0.9V per amp of output at 230°C.