Analog Hoverboard Controller
17 days ago
- #hoverboard
- #vintage-technology
- #relay-controller
- Design for a fully relay-driven controller for a small standing carriage (hoverboard) in the style of 1884.
- Features a polyphase electro-magnetic motor with a 48V nominal galvanic pile and 3-phase BLDC, 30 poles.
- Two methods for rotor position sensing: minute magnetic contact-springs (reed switches) and Hall instruments.
- Six-step commutation gear for advance and retrograde motion, implemented entirely with relays.
- Inclination & Safety governance with four mercury keys per side for gentle and deep inclination.
- Foot Cut-out safety switches that open the circuit when the rider’s foot departs.
- Synchronous DC–DC converter to step down 48V to 5V for delicate components.
- High currents, rotating machinery, sharp edges, and boiling electrolyte present safety risks.
- Required components include a 3-phase BLDC hub motor, ~48V battery, relays, mercury tilt switches, and reed switches.
- Construction steps include studying diagrams, building the power stage, installing safety mechanisms, and cautious testing.
- Project released under a combination of MIT License and CERN Open Hardware Licence.