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✕19 400 -20 to 70
Myxa A1 Polyolefin envelope 27 55✕36✕20 400 -20 to 70
Myxa A2 Aluminum enclosure 55 57✕38✕24 850 -20 to 70
Myxa B0 Board-level 27 55✕35✕20 400 DMR 5 V, 250 mA -40 to 85
Myxa B1 Polyolefin envelope 28 55✕36✕21 400 DMR 5 V, 250 mA -40 to 85
Myxa B2 Aluminum enclosure 56 57✕38✕24 850 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

Set parameters via UAVCAN

Is it possible to set parameters other than RPM via UAVCAN on the Myxa controller, or is it only possible via telega? If it is, how do I do it, and are all the required data types part of the public regulated data types?…

Can't quite get started with Myxa

Hi, I’m trying to get started with my new Myxa (A). And I can’t seem to get it to speakt to me or anything. I still suspect that I am missing something obvious so, I’d like to have you “look over my shoulder” for a second. Procedure: Connect a BLDC motor. This motors has been test run with other BL…

Heavy-duty integrated PMSM drive for safety-critical propulsion systems of light UAV and watercraft

This is a prototype of a custom heavy-duty integrated PMSM based on Mitochondrik. The drive is optimized for propulsion systems of unmanned aircraft and watercraft. Rated speed 10500 RPM, power 350 W (peak 500 W), torque 0.32 Nm, liquid cooling, weight 480 g (incl. coolant), efficiency 91%. Dedicat…

Logic levels on Myxa

Hi Pavel, we’re looking at using the Myxa controller for a small underwater drone that counts fish. We’re drafting the electronics board and I just need to clarify a few things for that process. I believe that most questions can be answered in a few words. Integration strategy: We’ll start out wit…

RPM calculation from eangvel

I’m a little confused about the meaning of electric angular velocity (eangvel), electric frequency and RPM. I would expect the relationship between eangvel and RPM to be: RPM = eangvel / (2 * pi) / N_poles * 60. In our testsystem (Xyxa) the eangvel_min is set to 400 rad/sec, the number of poles is 1…

Myxa LED control

Hello, is there a way to control one LED of the Myxa? Ideally, I would love to send an UAVCAN message to control the led, is that possible?…

Myxa uavcan.equipment.esc.Status frequency increasing

Hello Is it possible to increase the frequency of the esc.Status message? We would be happy to receive updates with a frequency about of 100 Hz…

Kucher will not work

why will the Kucher software not work?…

Unable to access Telega's USB interface

Hi, I’ve set up the Myxa B and it’s all working correctly using the Kucher software. I am now attempting to access Telega’s USB interface using picocom - to no avail. I’m using this command to connect: sudo picocom /dev/ttyACM0 -b 115200 It seemingly connects, and I get no error message: picocom v1…

[Myxa] Current limiting behavior

I think this bears some relevancy to the power balance explanation, and perhaps understanding of listed settings and any hard-coded limits. I have been experimenting with a Myxa running Telega v0.2, to see how much power I could squeeze out of it, within the (peak) limits as I understood them. The …

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
Lightweight plastic enclosure with the top lid removed
Myxa evaluation kit
Kucher - a GUI tool for Telega