Product category:
Power Supply ICs and Controllers
News Release from: International Rectifier | Subject: IRMCT3UF1
Edited by the Electronicstalk Editorial
Team on 19 October 2006
Module simplifies motor control for
aerospace
Fully integrated high-reliability hybrid motor control module enables digital, sensor-free vector control of permanent magnet motors.
International Rectifier has introduced the IRMCT3UF1, a fully integrated high-reliability hybrid motor control module enabling digital, sensor-free vector control of permanent magnet motors Based on IR's iMotion integrated design platform and its greatly simplified approach to code development, the new module combines digital control, analogue interface and power stage, streamlining time to market and increasing design flexibility to accommodate drive system changes in high-reliability applications
This article was originally published on Electronicstalk on 15 Feb 2001 at 8.00am (UK)
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Compared with complex DSP- or microprocessor-based solutions that require position sensors and sophisticated programming, the iMotion platform simplifies motor control design for aerospace systems.
It is estimated that up to one man-year of motor control system design can be saved eliminating the laborious code development associated with digital motion control.
The module can be quickly configured to specific applications using the iMotion ServoDesigner tool that facilitates drive parameter modification via memory-mapped registers.
The control functions are contained in a powerful, preconfigured Motion Control Engine (MCE), and its algorithm accommodates motor parameter variation for compatibility with a variety of brushless DC and permanent magnet AC motors, while creating robust field oriented control.
In contrast to conventional motion control circuits, the new high-reliability iMotion module is a greatly simplified solution featuring high efficiency, reduced size and EMI suppression.
It is built into IR's rugged, high-density plastic ring frame package, and screened to various test methods of MIL-STD-883 for operation in severe environmental conditions.
Less than half the size of a discrete solution, the module combines digital controller, memory, external interface, gate drivers and six power MOSFETs into a 52cm2, 70g package.
The IRMCT3UF1 provides accurate high performance speed and torque control without commutation or position sensors.
Optimised sinusoidal current control enables current startup sequencing and low loss space vector pulsewidth modulation (PWM) for smoother startup and minimised torque ripple for maximum motor efficiency.
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