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Orel 20

Low-cost BLDC motor controller for light unmanned aircraft and watercraft.

Orel 20 is an advanced controller of sensorless BLDC motors designed for use in cost sensitive applications. Its primary application domains include propulsion systems of electric unmanned aircraft and watercraft.

Orel 20 runs Sapog – an open source multiplatform BLDC controller firmware developed by Zubax Robotics.

Applications

  • Propeller drives for unmanned aerial vehicles.
  • Pump and propeller drives for unmanned watercraft.

Features

  • Excellent dynamic characteristics.
  • Regenerative braking and active freewheeling.
  • 350 W continuous power output at 10 g weight.
  • Optional RPM control loop (RPM governor).
  • Embedded self diagnostic routines and health status reporting.
  • Highly configurable.
  • Low noise and low current ripple due to low ESR embedded filtering capacitors and high frequency PWM.
  • Supported interfaces:
    • CAN (UAVCAN), with optional double redundancy.
    • UART.
    • RCPWM (analog PWM interface widely used in robotics).
  • High quality assurance:
    • Every manufactured unit undergoes a rigorous testing procedure. The testing log for each produced unit is available on the web.
    • Protection against unlicensed (counterfeit) production by means of a digital signature installed on every manufactured unit.
  • Open source firmware – Sapog (3-clause BSD license).