OngoingAC speed control v2 dev
STDAC speed control v2 dev
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：CC-BY 3.0
Creation time:2020-09-18 03:18:56Update time:2021-09-13 12:15:33
Description
Speed control for Hilda 180W grinder with BackEMF (sensorless) RPM tracking.
Hardware Version 2, for development
- Extra sensors for lab stand.
- MP157 step-down power source.
- Direct triac drive.
- USB firmware upload.
Follow to github: https://github.com/speedcontrols/ac_sc_grinder for documentation and firmware. This page is for PCB and components order only.
BOM
| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | ES1JW | D3 | SOD-123FL | 1 |
| 2 | Speed knob | R9 | HILDA POTENTIOMETER | 1 |
| 3 | 220 | R10,R15 | 0603 | 2 |
| 4 | STM32F072CBT6 | U3 | LQFP-48_L7.0-W7.0-P0.50-LS9.0-BL | 1 |
| 5 | 2.2uF | C9,C10,C3,C12,C16,C17 | C0603 | 6 |
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