GaN motor drive
built for the joint.
Three phase GaN inverter, sensored field oriented control, a 14 bit magnetic encoder on the shaft axis and CAN FD on the harness. One board, one cable, one browser window to see every loop variable live.
ULNA · REV 1.2What GaN buys you on a robot joint.
PWM at 100 kHz with headroom to 200 kHz. Silicon drives in this class stop at 20 to 40 kHz. GaN does not.
Twenty nanoseconds between the switches. Less distortion at the zero crossing, less loss, more torque per amp.
25 A peak on a 60 V bus from three EPC23102 GaN half bridges. Sized for RobStride and CubeMars class actuators.
MA732 magnetic absolute encoder on the shaft axis. No homing at power up.
Plug in. Open a browser. Spin.
Nothing to install. The ulna tooling runs in the browser: connect the board, open a tab, and every loop variable is on screen.
any OS
No driver, no desktop app, no license key. Open it on the bench laptop or a tablet.
variable, live
Currents, speed, position, bus voltage and temperature, plotted as they happen and logged to file.
and spin
Power, motor, CAN. The board shows up, you tune, you log. Nothing to compile.
Grab a stool.
The Lab is open.
The bench where we argue with our own designs. Pull apart an actuator, break a current loop on purpose, rank every GaN device on the market. Stay as long as you like. Nobody asks for a badge.
- 01GaN AnalyticsEvery GaN device, IC and eval board, side by side.
- 02FOC ExplorerA live current loop. Slow it down. Break it. Fix it.
- 03Actuator AnatomyA joint in 3D, exploded, with the real ulna inside.
Not the board you need?
Tell us what is.
Different voltage, more current, a dual encoder, EtherCAT, a shape that fits your joint. We design GaN motor drives to specification, from schematic to tested boards, and we have the dyno to prove them.