Analog Hoverboard Controller

Summary

The Most Serene Order of Galvanic Monks Standing Carriage Controller (Victorian Hoverboard, Relay Edition) For further particulars, consult the full electrical plan in Diagram of the galvanic arrangements. Welcome, curious electrician and itinerant mechanician! This repository contains the designs for a fully relay-driven controller for a small standing carriage (hoverboard) executed in the idiom of the year 1884: no semiconductors, much brass, a quantity of quicksilver, and a modest disregard for personal safety. Modern folk may call it a BLDC hoverboard controller. We prefer polyphase electro-magnetic standing carriage, governed by relays. Principal Curiosities (Features) Polyphase electro-magnetic motor ~48 V nominal galvanic pile 3-phase BLDC, 30 poles (15 pairs) Star-formed connexion of the windings Two manners of “sight” for rotor position Minute magnetic contact-springs (reed switches) The motor’s own Hall instruments , poetically described as thinking sand A three-pole, double-throw Selector of Indicating Apparatus chooses between Reeds and Sand. Six-step commutation gear (Ahead & Astern) Implemented entirely with relays Provides advance and retrograde motion for the standing carriage. Inclination & Safety governance Four mercury keys per side : two for gentle inclination (current through a limiting resistor) two for deep inclination (bypassing said resistor for greater torque) pairs provided for both advance and retrograde lean. Foot Cut-out beneath each standing board: a spring-tongued safety switch that opens the circuit the moment the rider’s foot departs. Synchronous DC–DC Converter Converts ~48 V from the pile to ~5 V for delicate contrivances Works by two double-contact relays cavorting with a small transformer. Short Mechanical & Electrical Overview In plainer speech: A 48 V battery (voltaic pile) feeds: the motor power stage (three phases via relay switching), (three phases via relay switching), the converter that produces 5 V for logic and indicato...