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Texas Instruments has introduced the first in a new series of scalable evaluation platforms for motors driver devices. The DRV8412 evaluation kit includes all of the hardware and software needed to operate two brushed DC motors, or a single stepper motor consuming up to 6 A continuous or 12 A peak at 50 V. Potential applications include medical pumps, gate openers, stage lighting, textile manufacturing tools, and industrial or consumer robotics.

  

This 'out of the box' motor control and driver kit includes a DRV8412 motor driver, a real-time control C2000 Piccolo microcontroller controlCARD module, a quickstart GUI, full development source code, the Code Composer Studio (CCStudio) integrated development environment (IDE), two brushed motors, and one stepper motor.

 

A modular control architecture lets designers choose the right level of processing performance for the intended application. In addition to the C2000 controlCARD module, more TI MCU options will be available in 2011.

 

The DRV8412 motor driver with integrated MOSFETs provides up to three times lower on resistance than competing solutions, enabling operating efficiency levels up to 97%, as well as 6 A continuous (12 A peak) current capacity at 50 V with no need for a heat sink. The DRV8412 motor driver also includes advanced on-chip protection, including cycle-by-cycle overcurrent, overtemperature, and undervoltage protection, to reduce design complexity and board space while increasing higher system reliability.

 

C source code and a user-friendly GUI demonstrate voltage and current control of one or two brushed DC motors, as well as speed and index control of a stepper motor, including operation with up to 128 microsteps.

 

Image: Texas Instruments

 

 

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Texas Instruments evaluation kit web page



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Intersil has announced three new products  for video applications with signal transmission over coaxial or CAT 5 cabling. Two of these devices, the TW3801 camera modem PHY and the TW3811 receiver modem PHY, form part of the Security Link over Coax (SLOC) family. This is a new product family for Intersil, arising from the company’s springtime acquisition of Techwell, a fabless mixed-signal video IC provider. The third new offering is the ISL59601/2/3/4/5 series of MegaQ adaptive composite video equalizers.

The SLOC modems are designed for simultaneous transmission of an analogue composite video, blanking, and sync (CVBS) signal and digital IP video signal over a single coaxial cable over distances up to 500 m. The allows users to install newer, megapixel IP cameras without having to replace or modify their existing coax infrastructure.
This approach provides latency-free viewing and camera control, enabling system makers to build systems that support both latency-free closed-circuit TV and networked IP surveillance.

The devices in the MegaQ family are designed to automatically equalise video signals over both Cat 5 and coax and deliver excellent video quality at distances up to 1.6

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BEE4 is the fourth generation of the Berkeley Emulation Engine (BEE), a full-speed FPGA prototyping platform from BEEcube, Inc. BEE4 is designed to address a major problem with multiple FPGA platforms used for system verification and validation, which is their inability to operate at real world speeds. Based on multiple Virtex 6 FPGAs, BEE4 meets the latest design size capacity needs and additionally offers massive amounts of memory for both RTL and application debugging needs, all without sacrificing communication speeds between all BEE4 components, including FPGAs, memory and I/O.

BEE4 is targeted at both high-speed RTL verification and real-data-rate system integration validation. BEE4 is optimised for LTE

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Maxim Integrated Products has introduced its third generation of 230-V switches: the MAX14805 and MAX14806 16-channel, high-voltage SPST devices. Each device has two banks with eight channels each, controlled by two logic inputs for easy operation and design flexibility. Maxim's proprietary HVCMOS technology enables the devices to combine high-voltage bilateral DMOS switches and low-power CMOS logic for efficient control of high-voltage analogue signals.

The MAX14806 also has integrated 40 kΩ bleed resistors to discharge capacitive loads, such as piezoelectric transducers. These features eliminate expensive and bulky discrete circuitry on each analogue switch terminal, thereby reducing costs and cutting board space by as much as 60%.

With their fast switching times (5 μs) and high channel density architecture, the MAX14805 and MAX14806 are well suited to portable and console-based ultrasound devices, non-destructive testing (NDT) equipment, industrial sensors, and other applications that need to switch high-voltage signals.
The MAX14805 and MAX14806 support a wide range of  high supply voltages for design flexibility. They can operate with Vnn from -160 V to 0 V and Vpp from

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The European Green Cars Initiative has launched a project intended to explore new technology paths towards the energy efficiency, functionality and usability of electric vehicles that are complementary to future advances in the performance of battery cell technology.

According to consortium members, the objectives of the Information and Communication Technologies for the Full Electric Vehicle (ICT4FEV) project consist of building an R&D community, editing a European roadmap, recommending standards and regulations, and establishing a European organisation for electric mobility.

The consortium is led by VDI/VDE-IT and includes CRF, Siemens, NXP, EADS and AVL List. Another twenty companies in the automotive, energy and ICT sectors have agreed to contribute to ICT4FEV as associated partners.

The ICT4FEV project is funded by the European Commission's Directorate General of Information Society and Media. It started on 1 May 2010 and has a planned duration of 24 months.

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Integrated Device Technology (IDT) has announced what it claims is the industry's first motion-compensated frame rate conversion processors with an integrated resolution-enhancement engine for use in 120 Hz and 240 Hz television sets and high-definition video projectors.

The new IDT VHD1200 and VHD2400 devices feature advanced IDT HQV MotionSMART technology, which provides smooth motion and full-detail images while minimizing side effects seen with competitive solutions. The frame-rate conversion processors are also 3D capable, providing smooth motion with minimal side effects, which is significant for 3D where varying side effects could be very distracting to viewers.

IDT HQV MotionSMART technology includes per-pixel processing, providing the capability to make intelligent localized decisions in the detection and processing of complex images and motion in video images. The IDT solutions also feature cadence detection, which removes judder from sources with cadence, and a wide detection range to eliminate flickering when images move horizontally, vertically or diagonally on the screen.

The IDT VHD1200 and VHD 2400 processors are able to lock to a large range of motions to provide full detail with no judder on fast camera pans and small, fast-moving objects. The devices also feature the advanced HQV resolution enhancement engine for increased detail in high-definition images.

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