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DC/DC Converter

Green Watt Power, a division of Calex Mfg. Co., Inc. (Concord, CA) has announced the 450 Watt EVD-89-S-450-G3201 DC/DC converter. The EVD is a ruggedized DC/DC converter suitable for electric vehicle, marine, industrial and other applications which draw power from a bank of batteries or another high voltage DC power source. The input range of the EVD is 50 to 125 VDC. The output voltage range is 13.6 VDC to 14 VDC, making the unit ideal for powering onboard accessories, lights, instruments, etc. The output current rating of the EVD is 33A with output surge capability up to 45A. The EVD-89- S-450-G3201 is isolated input to output. The isolation voltage is 1500 VAC. Overall output voltage accuracy is +/- 3%. Line and load regulation is +/- 0.02% and 5% respectively. Output ripple is 130mV peak to peak. The efficiency of the unit is 90%. The ambient operating range is -40 to +55°C. The EVD-89-S-450-G3201 measures 6.22” x 6.69” x 1.97” high. The converter is fully encapsulated for rugged reliability.

Posted in: Products, Products, Electronics & Computers
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System-on-Chip

Ultra low power (ULP) RF specialist Nordic Semiconductor ASA (Oslo, Norway) has announced the availability of a lower cost variant of its nRF51822 Bluetooth® low energy and proprietary 2.4GHz SoC (System-on-Chip) that will offer an identical feature, peripherals, and performance set but half the flash memory at 128kB (instead of 256kB) and be based on the same nRF51 Series technology platform. This means it will offer the same multiprotocol radio and a 32-bit ARM Cortex-M0 based processor optimized for ultra-low power wireless applications and deliver -92.5dB RX sensitivity in Bluetooth low energy mode; up to +4dBm output power in all modes; up to 9.5dBm improvement in link budget compared to previous generations of class-leading Nordic chips, and sub-10mA peak currents running off a 3V coin cell battery for months or years of battery life (depending on the application).

Posted in: Products, Products, Electronics & Computers
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PC/104 CAN Module

WinSystems (Arlington, TX) has introduced their PCM-CAN-2-ISO, a PC/104- compliant, dual channel, isolated Controller Area Network (CAN) module with Windows and Linux drivers available. The board employs high-speed isolated data couplers and power supplies to provide 1000V protection between the two NXP SJA1000 CAN controllers and the network interface. Each CAN channel can provide isolated +5 VDC power or receive isolated +5 to +12 VDC power from the interface for additional flexibility. The +5 VDC power supply includes overvoltage, overcurrent, and short-circuit protection. The PCM-CAN-2-ISO is compliant with CAN specifications 2.0A (11-bit ID) and 2.0B (29-bit ID). The PCM-CAN-2-ISO supports transfer rates to 1 Megabits per second and has jumper selectable termination resistors so it can be used in various topology systems.

Posted in: Products, Products, Electronics & Computers
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Media Processing Accelerator

Emerson Network Power (Tempe, AZ) has announced a performance breakthrough for adding voice and video to network server applications. Where a typical commercial Host Media Processing solution is limited to 2000 ports per server, a single Emerson Network Power PCIE-8120 PCI Express media processing acceleration card is capable of transcoding over 7000 bidirectional voice channels from G.711 to G.729A, and multiple cards can be added to a single server for even higher performance. Featuring up to 12 low power Octasic digital signal processors (DSPs) with embedded voice or video firmware, the Emerson Network Power PCIEe-8120 can also transcode over 300 mobile video streams at CIF resolution, and offers support for high definition video resolutions up to 1080p. It enables users to add high density, highly scalable voice and video processing to network applications, while using less space, less power and at lower cost than the alternative of adding more servers or suffering significantly reduced application performance.

Posted in: Products, Products, Electronics & Computers
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Modeling and Simulation Techniques for Unmanned Vehicle Systems

Unmanned Autonomous Vehicle (UAV) systems have become possible in recent history thanks primarily to the effects of Moore’s Law — the doubling of processing power every 18 months. This trend, coupled with improvements in sensors and actuators, has enabled the advanced signal and data processing necessary to control UAVs. However, the complexity of UAV systems has taxed traditional design workflows, and revealed numerous challenges such as shorter design cycles, greater performance and reliability demands, and cost constraints.

Posted in: Articles, Aerospace, CAD / CAM / CAE, Computer simulation, Design processes, Autonomous vehicles, Unmanned aerial vehicles
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Looking Under the Hood of a Military Power Supply

There are power supplies in virtually every military electronic system. These ubiquitous devices come in all sizes and power ratings. And just like their commercial counterparts, they are available in the AC/DC, DC/DC and DC/AC configurations that provide the appropriate electrical energy to operate the electronics.

Posted in: Articles, Articles, Electronics & Computers, Power electronics, Electric power, Military vehicles and equipment
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An Improved SDR FPGA Verification Methodology for Emerging OFDMA Waveforms

The rapid evolution of commercial technologies such as Long Term Evolution (LTE) is becoming more attractive for Software-Defined Radio (SDR) and public safety applications [1,2]. They have the potential to support high data throughput applications with scalable subcarriers and the use of multiple antenna techniques such as Multiple-Input Multiple- Output (MIMO) technology.

Posted in: Articles, RFM Catchall, Aerospace, Antennas, Architecture, Oscilloscopes
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Simulation Optimizes Safety and Performance When Integrating an Antenna Onto a Platform

Successful integration of an antenna onto a vehicle platform poses many challenges. Vehicle features impact antenna performance by blocking, reflecting, or reradiating energy, and co-site interference can impair the effectiveness of multiantenna configurations. Platform motion and environmental factors such as terrain and buildings may reduce system effectiveness in actual operational conditions. Furthermore, radiation hazards may pose risks to nearby personnel. Modeling and simulation provides a powerful tool to aid in understanding these issues and developing solutions.

Posted in: Articles, RFM Catchall, Aerospace, Body structures, Computer simulation, Antennas, Electromagnetic compatibility, Radiation
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Laser Polarimeter Classifies Remote Material

Advanced Optical Technologies, Inc. (AOT) has been awarded a Phase 2 SBIR contract to develop a next-generation laser polarimeter for the US Army RDECOM CERDEC Night Vision and Electronic Sensors Directorate (NVESD), traditionally known as the US Army Night-Vision Labs. The polarimeter will implement AOT’s polarization-components techniques (PCT), which apply machine-learning algorithms to polarimeter data for remote material classification.

Posted in: Application Briefs, Artificial intelligence, Lasers, Optics, Suppliers, Visibility, Military vehicles and equipment
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Buoy System Tracks Ships in Real Time

According to the U.S. Department of Homeland Security, the nation’s 360 ports and waterways remain especially vulnerable to attack from small vessels carrying improvised explosive devices, including radioactive dirty bombs. Intellicheck Mobilisa, a wireless-technology firm, will address the vulnerability with Aegeus, a buoy system that communicates in real time to the shore.

Posted in: Application Briefs, Architecture, Security systems, Sensors and actuators, Wireless communication systems, Marine vehicles and equipment
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