CEL (California Eastern Laboratories)

<p>En ajoutant une couche mince piezoélectrique au dessus du résonateur silicium, et en utilisant une méthode à condensateur commuté pour compenser en température (au lieu du PLL) le CSEM a réussi a réduire la consommation d'un facteur de 1000X selon une communication présentée cette semaine à la conférence International Solid-State Circuits Conference à San Francisco.</p>

Qualcomm, 13 others, join Symbian Foundation

Compared to the second generation, the device capacitances of the Infineon third generation SiC Schottky diodes are about 40 percent lower, which reduces switching losses. For example in a 1 kW PFC stage operating at 250 kHz there will be an improvement of 0.4 percent in the overall efficiency under 20 percent load conditions. Higher switching frequencies allow the use of smaller and lower cost passive components, such as inductors and capacitors, resulting in higher power density designs. Reduced power losses result in several benefits, including reduced cooling requirements in terms of size and number of heatsinks and fans, which enables system cost reduction and increased reliability levels. This also contributes to reduced system level energy requirements to provide an appropriate cooling environment. Infineon expects system cost reductions in some SMPS applications of up to 20 percent.

Infineon was the world's first provider of SiC Schottky diodes, introducing its first products in 2001. During the last eight years, Infineon has made a number of significant improvements to its SiC Schottky diode technology in areas such as surge current stability, switching performance and in product cost, extending the benefits of SiC technology,” said Andreas Urschitz, vice president and general manager, Power Semiconductor Discretes at Infineon Technologies. SiC is a truly innovative technology which helps to support the global climate saving trend and to drive new markets such as solar energy and high-efficiency lighting systems. It clearly underlines Infineon's leadership in and commitment to the power management market.”

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Availability and Pricing

Infineon's third generation thinQ! SiC Schottky diodes are available in 600 Volts (3, 4, 5, 6, 8, 9, 10, and 12 A), in both TO-220 and DPAK packages, and in 1200 V products (2, 5, 8, 10, and 15 A) in TO-220 package. Sampling started in January 2009, with series production scheduled in early spring 2009. In quantities of 10,000 pieces, third generation SiC Schottky diodes with a blocking voltage of 600 Volts (3 A) are priced at Euro 0.61 (US $ 0.85) per unit. The 4 A version is priced at Euro 0.85 (US $ 1.19) per unit, the 8 A version at Euro 1.89 (US $ 2.65) per unit.

For information on Infineon's SiC Schottky diodes visit: SiC Schottky diodes

ZW-03-14-S-S-840-125-002_Datasheet PDF

Pittsburgh, Pa. – Timesys Corporation has incorporated support for the Freescale MPC8313E communications processor and its RDB reference board into LinuxLink. Timesys has taken advantage of the Freescale e300's processing core to leverage a set of common features such as Gigabit Ethernet, High-Speed USB 2.0, and power management.

Subscribers can quickly customize an embedded Linux platform for the MPC8313E using LinuxLink Factory. Factory-built Linux platforms for the MPC8313E can be based upon either the Freescale-enabled 2.6.23 kernel or the mainline 2.6.28 Linux kernel.

ZW-03-14-S-S-840-125-002_Datasheet PDF

Each Factory-built Linux platform will include a GNU-based cross toolchain, hundreds of application-specific root filesystem (RFS) package sources, and a suite of commonly used open source development tools such as GDB, OProfile and mpatrol.

Subscribers also will be provided with technical support and a suite of documentation to customize and test their embedded Linux platform for a given communication application.

ARM Holdings plc


Cambridge Consultants Ltd.

CSR plc

Cyan Technology Ltd.

The image of the US abroad has diminished since the attacks of September 11, but opinions about American science and technology have consistently been the exception,” the report said.

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