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MCUs target embedded motion control apps

Posted: 26 Mar 2007     Print Version  Bookmark and Share

Keywords:motion control  motor control  Stellaris MCUs  Luminary Micro 

Luminary Micro has announced the immediate availability of five new Stellaris MCUs and corresponding development kits. The MCUs incorporate features well-suited for embedded motion control applications, including building and home automation; factory automation; motor control; and industrial power control devices. The Stellaris line of MCUs brings high-performance 32bit computing to cost-sensitive embedded MCU applications at a cost equivalent to or better than legacy 8bit and 16bit devices. The five new Stellaris MCUs have been optimised to support the complex algorithms necessary for efficient energy-saving motion control applications.

The LM3S618 and LM3S818 are particularly well-suited for controlling a wide range of variable speed three-phase and single-phase AC induction motor control using space-vector or sine-wave modulation. The LM3S317, LM3S617 and LM3S817 are optimised to control a wide range of stepper motors. Until now, stepper motor system designers have had to choose between a basic unipolar control method, giving up both high torque and high step rate capability, or a dedicated control chip that lacks extensible intelligence. Using the LM3S317/LM3S617/LM3S817 devices for stepper motor system control provides the system designer with the headroom for high-performance chopper control in order to operate a stepper motor at both high torque and high step rates.

These MCU are priced at Rs.146.04 ($3.31) for LM3S317-IQN25; Rs.175.16 ($3.97) for LM3S617-IQN50; Rs.188.39 ($4.27) for LM3S618-IQN50; Rs.217.95 ($4.94) for LM3S817-IQN50; and, Rs.231.19 ($5.24) for LM3S818-IQN50. All pricing is in 10,000-unit quantities.

The DK-LM3S817 development kit for LM3S317, LM3S617 and LM3S817 and the DK-LM3S818 development kit for LM3S618 and LM3S818 are priced at Rs.10,985.88 ($249) each.

- Gina Roos
eeProductCenter




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