Simpler off-the-shelf brushless DC (BLDC) motor electronic speed controllers (ESC) for UAVs employ simple back EMF techniques to control the multi-phase motor. Kinetis V Series, because of its precise timers and ADCs, are able to cost-effectively provide Field Oriented Control (FOC) where each of the motor phases are monitored closely to provide more precise and efficient operation.
Kinetis Motor Suite (KMS) makes it easy for non-experts in motor control to easily tune the motor and generate the software framework in C for FOC Advanced Disturbance Rejection Control (ADRC) algorithms which replaces traditional PD and PID loops and allows for single parameter tuning.
The addition of a CANbus to an ESC enables proper closed loop feedback, and can be used with protocols like UAVCAN to give advance warning of any motor degradation, overheating or damage back to the main flight controller.
Encoder inputs are supported in Kinetis V and KMS, and while not typically associated with high speed UAV BLDC motors, they can enable many other robotic, automation or actuator motors.
|MCU for motor control|
|Kinetis® V Series: Real-time Motor Control & Power Conversion MCUs based on Arm® Cortex®-M0+/M4/M7|
|KV5x: Kinetis® KV5x-240 MHz, Motor Control and Power Conversion, Ethernet, MCUs based on Arm® Cortex®-M7||M7 240Mhz + Eth+ HW Encryption|
|KV4x: Kinetis KV4x-168 MHz, High Performance Motor / Power Conversion MCUs based on Arm® Cortex®-M4||M4 168Mhz Multiple ESC + flight controller in one|
|KV3x: Kinetis® KV3x-100–120 MHz, Advanced 3ph FOC / Sensorless Motor Control MCUs based on Arm® Cortex®-M4|
|KV1x: Kinetis® KV1x-75 MHz, Entry-level 3ph FOC / Sensorless Motor Control MCUs based on Arm® Cortex®-M0+|
|S12VR: S12VR Mixed-Signal MCU for Automotive & Industrial Relay Based Motor Control|
|S12 MagniV® Mixed-Signal MCUs for Automotive and Industrial|
|S12ZVC: S12ZVC Mixed-Signal MCU for Automotive & Industrial CAN Applications|
|S12ZVM: S12ZVM Mixed-Signal MCU for Automotive & Industrial Motor Control Applications|
|Analog and Interface|
|System Basis Chips (SBCs)|
|GD3000: 3-Phase Brushless Motor Pre-Driver|
|CAN Transceiver and Controllers|
|Motion Sensors||Product portfolio of MEMS based motion sensors to meet the expanding needs of the automotive, medical and industrial segments.|