Myxa in the aluminum heat-sinking enclosure

Myxa

High-end PMSM/BLDC motor controller (FOC ESC) for light unmanned aircraft and watercraft.

Myxa is a high-end FOC ESC based on the Télega motor control technology.

Myxa is designed for use in propulsion systems of light unmanned aerial (UAV), underwater, and surface vehicles. The controller provides up to 850 W of continuous power output and supports a wide range of operating voltages 12–51 V (LiIon 4–12 S).

State-of-the-art vector control algorithms make Myxa one of the most energy-efficient ESC on the market. In the UAV field, the vector control technology is also known as field-oriented control, sine wave drive, or just FOC. Unlike other vector control solutions, Myxa is compatible with virtually any PMSM or BLDC motor, and is able to measure the parameters of the driven motor and automatically optimize itself for best performance.

Applications

  • Propeller and fan drives for light unmanned aerial vehicles (drones).
  • Pump and propeller drives for unmanned watercraft.
  • Fuel pump drives for jet engines and gas turbines.
  • CMG drives for LEO spacecraft.

Features

  • Based on the advanced Télega motor control technology.
  • Continuous power output up to 850 W.
  • Single supply voltage 12–51 V (Li-ion 4–12 S).
  • Rich set of communication interfaces:
    • CAN bus interface (connectors are compatible with UAVCAN and the Dronecode Autopilot Connector Standard). Myxa B offers a doubly-redundant CAN bus interface for mission-critical applications.
    • UART interface for control, management, and telemetry.
    • USB interface for control, management, and telemetry; driverless compatibility with GNU/Linux, Windows, Mac OS X. The connector type is USB Micro-B.
    • Industry-standard RC PWM input.
  • 5V BEC (battery elimination circuit) power output (Myxa B only).
  • Optional motor temperature measurement via external thermistor.
  • Connectors compatible with the Dronecode Autopilot Connector Standard.
  • Standard 3.5 mm bullet power connectors.
  • High quality assurance:
    • Every manufactured unit undergoes a rigorous automated 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.

Variants

Two types of Myxa are available:

  • Myxa A - optimized for cost-sensitive applications.
  • Myxa B - optimized for mission-critical applications.

Each type is available in several modifications which are reviewed in the table. Regardless of the chosen enclosure option, all versions of Myxa are conformal-coated, which provides resilience against moisture, aggressive chemicals, corrosion, and abrasion.

Variant Description Mass, g Dimensions, mm Rated power, W Redundant CAN BEC output Oper. temp, °C
Myxa A0 Board-level 26 55✕35✕16 400 -20 to 70
Myxa A1 Polyolefin envelope 27 55✕36✕17 400 -20 to 70
Myxa A2 Aluminum enclosure 55 57✕38✕20 850 -20 to 70
Myxa B0 Board-level 27 55✕35✕17 400 DMR 5 V, 250 mA -40 to 85
Myxa B1 Polyolefin envelope 28 55✕36✕18 400 DMR 5 V, 250 mA -40 to 85
Myxa B2 Aluminum enclosure 56 57✕38✕20 850 DMR 5 V, 250 mA -40 to 85

For low-volume orders, please proceed to the online store. For large orders and long-term supply options, please get in touch.

Evaluate your UAV application

Endurance with traditional BLDC drives min
Endurance achievable with Télega technology min

Provided estimates are based on laboratory tests. Real gains may vary.

Related announcements and discussions

Myxa high torque application

Hi everyone, We have a somewhat unique multirotor propulsion system and are therefore using Myxa to drive a 240Kv motor in a unique work regime - very low RPM (~1000) and high torque. Generally speaking and without getting into the details - what is the preferred control method to be working with …

Restore Myxa Brick?

I make Myxa to brick. Tell me how to restore Myxa. Unsuccessfully stitched to version 3. ST-Flash. After that I cleared Flash. I flashed BIN again. Alas, it didn’t help. Andrew…

Disable regenerative braking

Hi, I work on the definition of a new Tethered UAV and I am thinking of using Myxa ESC. But our power supply cannot take any reverse current. Is it possible to disable regenerative braking on Myxa or will we have to design a protection system to dissipate energy coming back? Thanks…

Measuring UAVCAN network health

Hi everyone, On my drone I’m using 6 Myxas connected on a UAVCAN network to a Cube FC and 2 Herelink GPSs. I suspect the UAVCAN network is experiencing interference when the vehicle is flying. I’m looking for a method of measuring the UAVCAN network integrity and health using the tools I have: Ba…

DShot support? RPM telemetry logging on PX4?

Hello, Does the Myxa support DShot and DShot telemetry? Also could you confirm if ESC telemetry data logging using UAVCAN plug and play with PX4? Is RPM recorded? Cheers…

High Power Motor Tuning Guide

Hi there, We have a mitochondrik design in the realm of the Komar ESC. We are having trouble getting a much larger motor to start reliably, and the myxa quickstart guide does not seem to cater to this sort of use case. The motor is consuming an average of ~1kW of power I took reference from this to…

Maximum RPM configuration on Myxa

Hi, I have a question about maximum RPM of Myxa. We have an Myxa with v3 firmware and we’re trying to maximize thrust of the propulsion system. Motor has 500-550kv and is supplied with 25V. This should give 12500-13750rpm with no-load. We get around 11500 rpm without propeller. Problem is that the …

Myxa controlled braking before spinup

Hi All, In my setup Myxa is connected to a Tmotor MN501 BLDC. To begin with - the Myxa is recieving 0 input and the motor is freewheeling in the reversed direction due to a small torque applied to it. When I’m applying an input to the Myxa, it rapidly brakes and changes direction and begins spinu…

More Myxa tuning questions

Hello, Since last time, we’ve been able to integrate Myxa onto our multicopter successfully, but I had a few more questions regarding optimal performance: With the default voltage ramp settings, the motor was not very responsive at all, so we increased the voltage ramp to 50 V/s (a value i found …

Myxa logger in cpp

Hello, I am trying to log myxa data in cpp with serial communication, I already logged in python thanks to popcop but in the github repo Zubax/popcop there is the message : " OBSOLETE – use [UAVCAN/serial] instead. This project was an experiment in applying the UAVCAN philosophy for byte-level L1 …

Resources

Purchase

Base technologies

UAV propulsion kits

Tuned and fully configured UAV power system combos are available for ordering.

Compliance

Myxa is manufactured by an ISO 9001:2008 certified vendor. Contact Zubax Robotics for information about quality and standard compliance.

Myxa B, bottom view
Myxa B, front view
Myxa evaluation kit
Kucher - a GUI tool for Telega