The DK-LM3S-DRV8312 motor control design kit uses a Stellaris Cortex-M3 LM3S818 microcontroller and a DRV8312 motor driver to spin and tune the included 24-V, 6.5-A three-phase brushless dc motor in minutes. The MCU has required firmware preprogrammed in flash to run the system and InstaSPIN-BLDC software out of the box when plugged into the DRV8312 motor driver base board.
InstaSPIN-BLDC is an innovative and free back-EMF technique that extends sensorless operation down to lower speeds and exhibits high immunity to mis-commutation caused by rapid speed changes. The 50-MHz MCU has 64 Kbytes of flash, 8 Kbytes of SRAM, and six PWM generators, and the motor driver provides up to 6.5 A, without the need for a costly external heat sink. ($299 — available now.)
By Jim Harrison
Texas Instruments , Dallas , TX , United States
Information 800-477-8924
www.ti.com
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