STMicroelectronics B-G431B-ESC1 Discovery Kit
STMicroelectronics B-G431B-ESC1 Discovery Kit is based on the STM32G431CB microcontroller, the L6387 driver and STL180N6F7 power MOSFETs. The kit is composed of the main power board and a daughterboard with embedded ST-LINK/V2-1. It is an electronic speed controller (ESC) designed to drive a single 3-phase brushless motor (BLDC/PMSM). It performs both sensorless FOC algorithm and 6-step control with speed regulation and an active braking function algorithm. The ST sensorless FOC algorithm ensures longer flight times and optimal dynamic performance. This unit accepts a command signal from an external unit for driving and monitoring, for instance, a flight control board or equivalent. For this purpose, several communication bus interfaces (UART, CAN, PWM channel) are present. A potentiometer and a user button are available for user application. The daughterboard includes a 5V battery eliminator circuit (BEC) and the main board embeds an overcurrent/overvoltage and thermal protection circuit. The form factor makes it suitable for small and very light R/C vehicles (FPV race drone) and the motor current capability fits the power requirement of big vehicles like a prosumer drone.
Features
Full reference design for electronic speed controller capable of both sensorless FOC and 6-step algorithmDesigned for drones with up to 6S LiPo battery pack or equivalent suitable DC supply3-phase driver board for BLDC/PMSM motors with discrete N-channel 60V, 120A STripFET F7 power MOSFETsSTM32G431CB Arm® Cortex®-M4 32-bit MCU, 213 DMIPS, 128Kbytes of Flash memory, 32Kbytes of SRAM, analog rich, math acceleratorOnboard ST-LINK/V2-1 debugger/programmer detachable from the mainboardOutput peak motor current (maximum peak current tested with a propeller to have an air-forced cooling): 40ADesigned with SMD ceramic capacitors with a very low profileBEC available through the daughterboard (5V for external board supply, for example, a flight control board)Support for motor sensors (Hall or encoder)Supported by ST Motor Control Software Development Kit (SDK) with ST Motor profiler3-shunt mode supported for motor current sensing
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