Qi low-power standard Thursday, 29 July 2010 13:23 administrator Qi low-power standard Blog, Wireless Power Consortium "Qi low- power standard is ready The Qi low power standard is ready. This standard delivers up to 5 Watt into wireless power receivers. The technical specification will become available on August 30 as free download for everyone." 
Blog page link Web page link DC-voltage doubler reaches 96% power efficiency Wednesday, 28 July 2010 09:40 administrator DC-voltage doubler reaches 96% power efficiency Design Idea, ADG888, AD8617 "The voltage-doubler circuit in Figure 1 can convert 2.5V dc to 5V dc or 1.8V to 3.3V. Most voltage doublers use an inductor, but this circuit doesn't need one. The circuit uses a capacitor, C, by charging it through serially connected switches. The charge switches let capacitor C charge, and the discharge switches are open. In the subsequent discharging phase, the charge switches are off, and the discharge switches close. The two discharge switches now connect capacitor C between the source of the input voltage, VS, and the output capacitor, COUT. This connection scheme lets the applied voltages combine. Thus, the voltage at the output terminal has a value close to 2VS." PDF document link Web page link Making mobile chips – a sneak peek at wafer manufacturing Tuesday, 27 July 2010 20:07 administrator Making mobile chips – a sneak peek at wafer manufacturing GlobalFoundries, ARM "The process of making a wafer can take two to three months and involves a number of steps including film deposition (Oxidation, DCVD & PVD), chemical mechanical polishing (CMP), photolithography, etching, cleaning technology, implantation and diffusion. Each of these is a process in and of itself, and can be repeated several times in fixed order." 
Web page link Vulnerability in WiFi WPA2 found Monday, 26 July 2010 09:36 administrator Vulnerability in WiFi WPA2 found "AirTight Security Researcher Uncovers Wi-Fi Vulnerability in WPA2; 'Hole196' Demos Planned at Black Hat and DEFCON" Presentation web page link Press release web page link | Car to Car Wednesday, 28 July 2010 14:44 administrator Car to Car Design resources CAR 2 CAR Communication Consortium C2CCC "The CAR 2 CAR Communication Consortium is a non-profit industrial driven organisation initiated by European vehicle manufacturers supported by equipment suppliers, research organisations and other partners. The CAR 2 CAR Communication Consortium is dedicated to the objective of further increasing road traffic safety and efficiency by means of cooperative Intelligent Transport Systems with Inter-Vehicle Communications supported by Vehicle-2-Roadside Communications" C2CCC web site link Network on Wheels website link and documents web page link Projects: CO-OPerative SystEms for Intelligent Road Safety - COOPERS web site link Co-operative Vehicle Infrastructure Systems - CVSIS web page link Need intelligent power solution? Wednesday, 28 July 2010 09:17 administrator Manufacturers Need intelligent power solution? IDT offers P95020 with an impressive list of system power regulation and management functions integrated on a single chip, including: General purpose MCU, Li-Ion/Li-Poly charger, Buck and Boost DC-DC converters, three 150mA LDOs, four 50mA LDOs , always-on 10mA LDO, Class D amplifier, 4 channel CODEC, Touch Screen Controller, Real Time Clock and I2C interface. 
MCU is a bit of mystery though and does not seem to be any of the Cortex-M type. Web page link Microchip updates MiWi Development Environment for Wireless Networking Protocol Stack Tuesday, 27 July 2010 19:58 administrator Microchip updates MiWi Development Environment for Wireless Networking Protocol Stack Microchip,PIC32 
ZIP file link Web page link NXP buys Jennic Monday, 26 July 2010 06:57 administrator NXP buys Jennic Looks like 802.15.4 and Zigbee chips powered by Cortex-M0 and Cortex-M3 cores are coming soon. "With leading levels of low power consumption and a full suite of robust 802.15.4 technology, including software stacks for Zigbee PRO, 6LowPAN and RF4CE, Jennic's offering proves ideal for applications requiring low installation and maintenance costs with a high degree of flexibility, scalability and ability to be reconfigured. As Low Power RF technology increasingly replaces wired solutions for narrow-band communications, Jennic's complete range of transceivers, chips, modules and protocol stacks are designed to meet growing demand for smart grid and metering, smart lighting networks, home and building automation and consumer remote controls solutions." Press release web page link |
