B-G431B-ESC1 - ESC controller with STM32G431CB microcontroller

Description

Discovery kit based on STM32G431CB microcontroller, L6387 controller and STL180N6F7 MOSFET power transistors. It consists of a main power board and an ST-LINK/V2-1 embedded programmer/debugger board. It acts as an electronic speed controller (ESC) and is designed to drive a 3-phase brushless motor (BLDC/PMSM), implementing both the sensorless FOC and 6-step algorithm.

ST's sensorless FOC algorithm ensures optimal dynamics. The module accepts a control signal from an external control and monitoring device. It is equipped with several communication interfaces (UART, CAN, PWM channel), while a potentiometer and user button are available for user applications. A BEC circuit is located on the board, and an overcurrent/overvoltage and thermal protection circuit is embedded on the main board. The dimensions of the circuit make it suitable for small and very lightweight R/C vehicles (FPV racing drones), and the current capacity of the motor meets the power requirements of large vehicles.

Features

• Speed controller for sensorless FOC algorithm as well as 6-step algorithm
• Designed for drones with LiPo battery up to 6S or equivalent suitable DC power supply
• 3-phase controller for BLDC/PMSM motors with discrete N-channel 60 V, 120 A STripFET F7 power MOSFETs
• STM32G431CB Arm® Cortex®-M4 32-bit MCU, 213 DMIPS, 128 Kb Flash memory, 32 Kb SRAM memory
• Built-in ST-LINK/V2-1 debugger/programmer
• Output peak motor current: 40 A
• BEC 5 V
• Support for Hall sensors or encoders
• Supported by ST Motor Control Software Development Kit (SDK) with ST Motor profiler
• Supported 3-shunt mode
• High-voltage L6387 high-side and low-side driver with built-in interlock function
• Over-current and over-voltage protection (OCP/OVP) function
• Thermal measurement and overheat protection with NTC
• ESC ready to communicate with any standard flight control unit (FCU): PWM/CAN/UART
• Potentiometer and user button
• Two user LEDs: one green LED for 3.3 V and one red user LED
• Target applications: controlling motors in R/C vehicles, UAV drones, electric cars or boats
• Dimensions: 30 x 41 mm
• Weight: 9.2 g
• RoHS compliant