Knowledge
Guides: drive technology explained
Fundamentals and practical knowledge from engineering at Persystems – on control, CAN bus, simulation and sizing of electric drives. No marketing fluff – just the numbers we use ourselves.
Control
Field-oriented control (FOC) explained
What FOC delivers over block commutation, what it requires and what that means for UAV and traction drives.
DroneCAN
DroneCAN instead of PWM: a CAN bus for ESCs
Why a bus with feedback is the better link between flight controller and motor controller – and how the integration into ArduPilot and PX4 works.
Validation
Validating inverter software in the loop
Why lookup-table models are not enough and how a physical model brings the validation loop from hours down to minutes.
Sizing
Sizing a 48 V drive: continuous power, phase current, derating
Which figures really count and how voltage range and derating factor into sizing.
FAQ
Answers on OverDrive, the inverter, PersyCAN and DroneCAN.
Glossary
Terms from drive technology and simulation, briefly explained.
Downloads
Datasheets, protocol descriptions and documents.