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Intelligent Motor Control ICs Simplify System Design

A new category of IC called an intelligent motor controller (IMC) is evolving that simplifies the task of designing high performance motor control drives. IMCs are dedicated, highspeed ICs that control multi-phase motors such as brushless DC and AC induction motors, and provide sophisticated control features required by today’s energy-efficient applications such as variable speed, flux vector control, and even sensorless control.

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Industry Update: Analysis & Simulation Software

Changing Roles in a Challenging EnvironmentIn our annual poll of executives at leading analysis and simulation software companies, we posed questions dealing with virtual prototyping, the changing role of the analyst, and how the economic environment is affecting software users and vendors. Here’s what they had to say about market trends for 2010, and maintaining competitive advantages in a challenging business market.

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Moving Machine Vision to 64-Bits

A nearly geometric growth in the data requirements for many machine vision applications is pushing 32-bit processing to its limits. The challenge is not in processing power, however, but in addressing memory buffers as systems fill them with ever-increasing volumes of data. Moving vision systems to 64-bit operation can solve the data challenge, but will require fully-updated hardware and software support.

Posted in: Articles, Features, ptb catchall, Photonics

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Using Event Systems and DMA to Cut Power Consumption

The trick to exploiting the ultra lowpower characteristics of microcontrollers with 100 nA sleep mode power consumption is to keep them in sleep mode as much as possible. The problem is that the growing number of on-chip peripherals and the increasingly dataand interrupt-intensive nature of modern applications make this a very difficult objective to achieve.

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Using Dynamic Parameters to Measure Digitizer Performance

Much confusion exists about characterizing the performance of a highspeed digitizer device. Nominal vertical resolution is routinely presented as an indicator of a digitizer’s performance, but the relevance of this parameter is dubious since a digitizer’s true performance is characterized by the Dynamic Parameters*.

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Designing Versatile COTS Data Acquisition Systems

Designing a versatile data acquisition (DAQ) system begins by comparing features of the signal of interest to the capabilities of current state-of-the-art A/D converters. Specifically, signal bandwidth and maximum signal frequency are compared to the A/D maximum sampling rate and bandwidth. The specifications in Table 1 are typical of current A/Ds.

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Getting Green and Staying Green

Avoiding the High Hidden Costs of Noncompliance EU RoHS, China RoHS, Korea RoHS, California RoHS, ELV, REACH – the list of environmental regulations for reducing hazardous substances in products keeps growing. What, exactly, are the costs if your products fail to comply? Missed customer requirements, blocked shipments, costly redesigns, and scrapped parts are just the tip of the iceberg. No doubt, the stakes are high, with potentially millions of dollars in lost revenue and related costs.

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