HV AC Servo Drive (2024)
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I developed a low-cost AC servo drive based on STMBL firmware.
It can drive up to 1KW AC servo motors, Has 2x SSI Encoder interfaces, Compatible with Step/Dir Signaling and Custom RS485 serial protocol. The Hardware was redesigned from the ground up to support high-availability ICs. This is specifically designed to be powered off of up to 400v DC Bus (rectified 220v mains).
Some top-level specs:
Dual MCU + high-speed digital isolator serial link for low-cost isolated communication between HV Hot and LV side.
RS485 Support
Encoder Support (Resolvers, Sin/Cos Encoder, Incremental Encoder)
Motor brake support
Edge connector card-based design allowing stacking.
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