This reference design features a 100/1000Base-T1 Single Pair Ethernet (SPE) with Time Sensitive Network (TSN)-connected motor drive powered by the TI Sitara™ AM261x MCU, utilizing the DP83TC815 or DP83TG721 PHYs to enable lowmass routing directly through hollow humanoid robot joints. Integrated onto a compact 70mm diameter PCB, this platform combines three high-power-density DRV7167 half-bridges GaN motor driver power stages, a 500MHz dual-core AM2612 MCU control stage, and AMC0106 isolated delta-sigma modulators to drive a robot joint (48V, 1KW motor) with precision real-time performance.
Merkmale
- By replacing bulky wiring with a single flexible twisted pair, SPE slashes cable mass and volume for seamless routing through hollow, high-mobility robot joints. Compact design with highly integrated ICs facilitating a 70mm diameter PCB
- High-bandwidth with Gbit TSN and precise time synchronization with hardware time stamping for real-time motor control
- Small form factor DRV7167 half-bridge GaN motor driver power stage
- Precision phase current sense using 1mΩ shunt and the AMC0106M05 functional isolated modulator