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STD AC speed control v1, for grinder
Project Status:
Ongoing
License: CC-BY 3.0
- 44
Description
Speed control for [Hilda 180W](https://www.aliexpress.com/wholesale?SearchText=hilda+180w) grinder with BackEMF (sensorless) RPM tracking.
> **Follow to github: https://github.com/speedcontrols/ac_sc_grinder for documentation and firmware. This page is for PCB and components order only.**
[](https://flic.kr/p/2gm6EaA) [](https://flic.kr/p/2gm6jZ2) [](https://flic.kr/p/2gm6Ea5) [](https://flic.kr/p/2gm6bWB)
Design Drawing
schematic diagram
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PCB
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | BTA16-600CWRG | Q1 | TO-220(TO-220-3) | 1 |
| 2 | STM32F103C8T6 | U3 | LQFP48-0.5-7X7MM | 1 |
| 3 | SC662K-3.3V | LDO1 | SOT-23(SOT-23-3) | 1 |
| 4 | 150K 1/4w | R3,R4 | 1206 | 2 |
| 5 | LNK306DN | U2 | SOIC-7_150MIL | 1 |
| 6 | ES1JW | D2 | SOD-123FL | 1 |
| 7 | 100nF | C6,C7,C1,C8,C5,C10 | 0805 | 6 |
| 8 | EL357N(B)(TA)-G | U1 | SOP-4_P2.54 | 1 |
| 9 | ST-Link | P1 | DIP-1X4P-2.54MM-M | 1 |
| 10 | Hilda potentiometer | R7 | HILDA POTENTIOMETER | 1 |
| 11 | 4.7nF | C9 | 1206 | 1 |
| 12 | MOC3052S-TA1 | U4 | SMD-6 | 1 |
| 13 | ST-Link-ext | P6 | HDR-2X1/2.54 | 1 |
| 14 | 200 | R10,R12,R8,R2 | 0805 | 4 |
| 15 | 4.7uF | C4 | 0805 | 1 |
| 16 | Pin 3*0.5mm | P5,P4 | PIN 3*0.5 MM | 2 |
| 17 | Pin 1mm | P2,P3 | PIN 1 MM | 2 |
| 18 | 0.01Ω | R11 | 0805 | 1 |
| 19 | 4.7uF | C2 | CAP-D8.0XF3.5 | 1 |
| 20 | 100uF | C3 | CAP-Z-6.3MMX5.5MM | 1 |
| 21 | BZT52C3V6 | D3 | SOD-123 | 1 |
| 22 | BAT54S | D4 | SOT-23(SOT-23-3) | 1 |
| 23 | INA213AIDCKR | U5 | TSSOP-6 | 1 |
| 24 | 1.5K | R6 | 0805 | 1 |
| 25 | 100 | R5,R9 | 0805 | 2 |
| 26 | 1N4007W | D1 | SOD-123FL | 1 |
| 27 | 1mH | L1 | IND-808050 | 1 |
| 28 | 1K | R1 | R2512 | 1 |
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