STEVAL-PTOOL4A Series

The STEVAL-PTOOL4A is a compact system designed to control a brushless DC (BLDC) or a permanent-magnet synchronous motor (PMSM) in application such as a handheld battery-powered tool. It works on the standard set of inputs such as throttle to control the motor torque/speed and to deliver power up to 250 W. The board can be connected to a suitable 21 V / 250 W power tool motor. More peak power can be delivered with heatsink or with arrangement for circulating air to achieve better power dissipation. This reference design is ideal for high-performance motor control to realize power tools such as drill machines, grinders, disc cutters, circular saws, leaf blowers, handheld mowers etc. The small form factor and ample computing power make it suitable even for applications such as drones, wheelchairs, home appliances, e-bicycles, and robotic platforms. The STEVAL-PTOOL4A includes a high performance STM32G473CE MCU featuring integrated peripherals especially optimized for motor control applications controlling a 3 phase full bridge converter consisting of six high current MOSFETS through triple half bridge gate driver STDRIVE101. The MCU features multiple ADC peripherals thereby enabling simultaneous sampling of motor phase currents and back emf voltages. The board has the capability to leverage on MCSDK library to provide options of both six-step or high performance FOC algorithm with configurability.