Speed Controller
AssemblyFootswitch PWM module varying handpiece motor frequency from 50–150 Hz based on pedal position. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Speed Controller
4 top-level lines as of r128442| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Control PCB | pmu-machine-control-pcb | 1× | 1 | · | part |
| 2 | Footswitch Input | pmu-machine-footswitch-input | 1× | 1 | · | part |
| 3 | Motor Driver Chip | pmu-machine-motor-driver-chip | 1× | 1 | · | part |
| 4 | Display LCD | pmu-machine-display-lcd | 1× | 1 | · | part |