Technical product graphic showing two green circular GaN motor driver PCBs on a white background, with headline text reading 'GaN motor drives for humanoid robotics.' and a small 'alephb' logo at the top.
GaN servo drive

ulna-60-25

A 60 V, 25 A peak three-phase GaN servo drive built around the STM32G431, three EPC23102 GaN half-bridges and a 14-bit MA732 magnetic encoder. Sensored FOC at 100 kHz PWM with 20 ns dead time, CAN FD.

$349.00 USD · per driver
Out of stock · rev 1.2
⏱Lead time: 12 weeks from order
Topology Three-phase GaN inverter
Bus voltage 60 V
Peak phase current 25 A
MCU STM32G431
Encoder MA732, 14-bit magnetic
Comms CAN FD
Control Sensored field-oriented control
PWM frequency 100 kHz
Switching headroom 200 kHz
Dead time 20 ns
The detail

What ships, and what it does.

A 60 V, 25 A peak three-phase GaN servo drive built around the STM32G431, three EPC23102 GaN half-bridges and a 14-bit MA732 magnetic encoder. Sensored FOC at 100 kHz PWM with 20 ns dead time, CAN FD. Ships with our telemetry software, ready for the bench.

Included with every drive

Software and telemetry, out of the box.

This is not just a board. It ships with host software that streams real-time telemetry, tunes control loops live, and configures the drive over the bus, so you spend your time on the robot, not the bring-up.

Telemetry

See inside the loop

Stream phase currents, position, velocity, bus voltage and temperature in real time over CAN-FD or RS-485.

Live tuning

Tune without reflashing

Adjust FOC gains, limits and modes on the fly from the host tools and watch the response immediately.

Host SDK

Script and integrate

A clean command and telemetry protocol with a host SDK, so the drive drops into your own control stack and test rigs.