Toshiba has launched an evaluation platform for brushless DC (BLDC) motor drive development that brings together a motor controller and single-chip inverter drive technology to provide a sensorless sine wave motor control and driver on a single board.

At the heart of the platform is the TB6582FG single-chip sensorless sine wave motor control chip. It takes analogue speed inputs from a host microcontroller and provides a complete full-wave sine wave PWM motor drive output without the need for additional processing.

Using the evaluation platform, engineers can combine this IC with TPD412x single-chip inverters to provide a complete motor drive system with input main voltages to 220Vac and output currents from 1A to 3A.

Control of motor rotation speed in both forward and reverse directions is then achieved simply by changing the PWM duty cycle based on the input from a host microcontroller.

See http://www.toshiba-components.com