Vector Control
January 2007
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The IRMCT3UF1, a fully-integrated high-reliability (HiRel) hybrid motor control module enabling digital, is a sensor-free vector control of permanent magnet motors. The 8-square-inch, 2.5-ounce module combines digital control, analog interface and power stage, streamlining time-to-market and increasing design flexibility to accommodate drive system changes in high-reliability applications. The module can be configured to specific applications using the iMOTION ServoDesignerâ„¢ tool that facilitates drive parameter modification via memory-mapped registers. The control functions are contained in a pre-configured Motion Control Engineâ„¢ (MCE), and its algorithm accommodates motor parameter variation for compatibility with a variety of brushless DC and permanent magnet AC motors, while creating Field Oriented Control. Optimized sinusoidal current control enables current startup sequencing and low loss space vector pulse-width modulation (PWM) for smoother startup and minimized torque ripple for maximum motor efficiency. International Rectifier


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