KV Series Quad Motor Control

KINETIS-DRONE-REFERENCE-DESIGN

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The quadcopter drone consists of a flight controller and four electronic speed controllers (ESCs), one for each motor. The flight controller is equipped with a radio to receive flight commands from the pilot and the inertial measurement unit (IMU). This reference design combines four separate ESC boards into one controlled by a single KV4x or KV5x MCU, and is capable of driving four BLDC motors.

Block Diagram

Quad Motor Control

Quadcopter Drone Block Diagram
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Supported Devices

Processors and Microcontrollers

KV Series Arm Cortex-M4/M0+/M7

  • KV5x: Kinetis® KV5x-240 MHz, Motor Control and Power Conversion, Ethernet, MCUs based on Arm® Cortex®-M7
  • KV4x: Kinetis KV4x-168 MHz, High Performance Motor / Power Conversion MCUs based on Arm® Cortex®-M4

Power Drivers

BLDC, H-Bridge, Stepper

  • GD3000: 3-Phase Brushless Motor Pre-Driver

Features

  • MCU
    • One KV4x or KV5x MCU capable of driving four motors for electronic speed controller.
  • Drivers
    • Each inverter is enhanced with an GD3000 pre-driver that drives only N-channel MOSFETs for better efficiency.
  • Sensors
    • The IMU uses the internal accelerometer, gyroscope, magnetometer and GPS receiver to provide information necessary for autonomous vehicle stabilization.
  • Monitoring
    • Easier debugging and real-time control with FreeMASTER run-time debugging tool
    • Software features such as diagnostics, logging and estimation of the remaining flight time based on current consumption

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Note: For better experience, software downloads are recommended on desktop.