Electronics & Computers

VME/VXS Board

Pentek, Inc. (Upper Saddle River, NJ) has released its Model 4207 high-performance VME/VXS board for digital signal processing and data-acquisition systems. The new board employs Freescale's MPC8641D Dual Core PowerPC AltiVec™ Processor and a Xilinx Virtex-4 FX Series FPGA for custom programming and gigabit serial I/O. The PowerPC processors perform 128-bit parallel processing of multiple data elements and deliver DSP floating-point processing rates up to 12,000 GFLOPS.

Posted in: Products, Products, Electronics & Computers
Read More >>

8-bit Microcontrollers with Flash (ESC Booth 916)

Microchip Technology Inc. (Chandler, AZ) has announced two Baseline 8- bit Flash PIC® microcontrollers with non-volatile Flash Data Memory (FDM) in 8- and 14-pin packages. The microcontrollers have 41 bytes to 67 bytes of data RAM memory, an 8 MHz internal oscillator, a 1.125 ms Device Reset Timer (DRT), up to three channels of 8-bit Analog-to-Digital Conversion (ADC), and up to two comparators.

Posted in: Products, Products, Electronics & Computers
Read More >>

32-bit Flash Microcontrollers (ESC Booth 306)

STMicroelectronics (Mansfield, TX) has released the STM32 Family of 32- bit Flash microcontrollers based on ARM® Cortex™—M3 core. The STM32 is offered in the STM32F103 performance line, with 72 MHz clock frequency for 32- bit devices, and the STM32F101 Access line, with 36 MHz clock frequency for 16- bit devices. Both lines offer 32K to 128K of embedded Flash memory. At 72 MHz executing from Flash, the STM32 consumes only 36mA.

Posted in: Products, Products, Electronics & Computers
Read More >>

Video Application Processors (ESC Booth 3028)

Renesas Technology America, Inc. (San Jose, CA) has added two new application processors to the SH-Mobile series. The SH-MobileL3V2 offers additional video formats, high-resolution video capture, and enhanced functionality to control image quality. The smallpackage SH-MobileUL is suitable for use in mainstream mobile phone models. The processors support the H.264/MPEG-4 AVC and VC-1 movingimage compression standard.

Posted in: Products, Products, Electronics & Computers
Read More >>

Network Appliance Board (ESC Booth 2110)

VIA Technologies, Inc. (Taipei, Taiwan) has released the VIA NAB 7500 network appliance board for network security or gateway applications, including Firewall, VPN, UTM, Anti-Virus, and Intrusion Prevention System products.

Posted in: Products, Products, Electronics & Computers
Read More >>

Protection Schemes for Advanced Shipboard Electrical Systems

A research program has made progress toward the development of schemes for protection against faults in next-generation DC zonal shipboard electrical systems (DC SESs) and for configuration management in these systems to enable surviving parts of the systems to continue to distribute electric power to critical loads. Computational simulations of a representative prototype DC SES have shown that these schemes could afford protection at a system level (in contradistinction to a local level), thereby imparting, to the DC SES, an intended capability for self-healing.

Posted in: Briefs, Electronics & Computers, Architecture, Electrical systems, Reliability, Marine vehicles and equipment
Read More >>

DC Power Converter for 200°C Containing SiC Transistors

A DC-to-DC power converter, nominally rated for a power of 180 W, an input potential of 28 V, an output potential of 270 V, and a maximum operating temperature of 200°C has been designed, built, and tested. This power converter serves as a prototype for further development of power converters required to be capable of operating in high-temperature environments in diverse settings, including automobile, aircraft, and spacecraft engines, and oil and gas wells.

Posted in: Briefs, Electronics & Computers, Capacitors, Transistors, Product development
Read More >>

A Comparison of SiC-Based Devices for Use as Power Switches

A report details a survey of the state of technological development and commercial availability of SiC-based electronic devices that has been performed to evaluate the suitability of such devices as power switches in present and future applications in which high reliability and/or capability for high-temperature operation are or will be required. Examples of such applications include high-temperature motor drives, switch modules, and DC-to- DC power converters, and DC-to-AC power inverters. The survey consisted primarily of a comparative study of the relative advantages and disadvantages of SiCbased vertical-junction field-effect transistors (VJFETs) and SiC-based metal oxide/semiconductor field-effect transistors (MOSFETs). Other devices, including conventional Si-based MOSFETs and SiCbased bipolar junction transistors (BJTs) were considered, but only in passing, because it was assumed, at the beginning of the study, that the superiority of SiCbased VJFETs and SiC-based MOSFETs over other devices for power-switching applications had already been established.

Posted in: Briefs, Electronics & Computers, Switches, Transistors, Technical reference
Read More >>

Advances in Organic-Based Electronic Devices

A program of research has addressed multiple topics in the field of electronic and optoelectronic devices based on polymers and other organic substances, with special attention to memory devices and solar photovoltaic cells. The accomplishments of this research are summarized as follows:

Posted in: Briefs, Electronics & Computers, Electronic equipment, Research and development, Polymers
Read More >>

AlxInyGa1-x-yN Ultraviolet Light-Emitting Triodes

Light-emitting triodes (LETs) have been the focus of a program of research with a goal of increasing the quantum efficiencies of ultraviolet-lightemitting devices implemented in the AlxInyGa1-x-yN (0 ≤ x+y ≤ 1) material system. Heretofore, AlxInyGa1-x-yN-based light-emitting diodes (LEDs) have exhibited "efficiency droop" — decreasing quantum efficiency with increasing injection current. LETs can be used as means of studying and overcoming efficiency droop.

Posted in: Briefs, Electronics & Computers, Light emitting diodes (LEDs), Performance upgrades
Read More >>