The sensorless BLDC motors can change direction quickly because they do not experience the hysteresis associated with sensored motors. And sensorless motors do not need extra cables for Hall-effect sensor signals.
All four Texas Instruments kits come with the company's sensorless InstaSPIN-BLDC motor-control firmware that will spin just about any BLDC motor. The control software does not need data about the characteristics of an attached motor. TI said in a press release, "Unlike traditional back-EMF zero-crossing techniques, InstaSPIN-BLDC extends sensorless operation to lower speeds and is highly immune to miscommutation caused by rapid speed changes."
All motor control kits include TI's Code Composer Studio integrated development environment, as well as a graphical user interface that runs example programs and demonstrates motor operations with either the included motor or a third-party BLDC motor.
Product designers, programmers, and engineers can purchase the new kits now. The Hercules DRV8301-LS31-KIT
and DRV8301-RM48-KIT safe motor control kits cost $499 each and include a Teknic servo motor and a 24V power supply. The motors come with built-in Hall-effect sensors and an encoder.
The MSP430 DRV8312-430FR-KIT and Stellaris DK-LM4F-DRV8312 kits cost $299 each and include a 24V power supply and a 24V NEMA17 BLDC motor with Hall-effect sensors.
People who have a compatible motor driver base board or circuit can buy the Hercules TMDX570LS31CNCD or TMDXRM48CNCD controlCARD modules for $99 each. The MSP430 MSP-CNCD-FR5739 and Stellaris MDL-LM4F211CNCD controlCARD modules cost $49 each.