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STD AC speed control for grinder copy

License: CC-BY 3.0

Mode: Editors' pick

Cloned from AC speed control for grinder

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Update time: 2021-10-03 16:12:15
Creation time: 2019-11-10 14:35:58
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://live.staticflickr.com/65535/48141477932_67854ee683_q.jpg)](https://flic.kr/p/2gm6EaA) [![](https://live.staticflickr.com/65535/48141413403_43d9d0c87f_q.jpg)](https://flic.kr/p/2gm6jZ2) [![](https://live.staticflickr.com/65535/48141477902_db6056ce83_q.jpg)](https://flic.kr/p/2gm6Ea5) [![](https://live.staticflickr.com/65535/48141386351_b83083e619_q.jpg)](https://flic.kr/p/2gm6bWB)
Design Drawing
schematic diagram
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PCB
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ID Name Designator Footprint Quantity
1 100nF C1,C5,C6,C7,C8,C10 0805 6
2 4.7uF C2 CAP-D8.0XF3.5 1
3 100uF C3 CAP-Z-6.3MMX5.5MM 1
4 4.7uF C4 0805 1
5 4.7nF C9 1206 1
6 1N4007W D1 SOD-123FL 1
7 ES1JW D2 SOD-123FL 1
8 BZT52C3V6 D3 SOD-123 1
9 BAT54S D4 SOT-23(SOT-23-3) 1
10 1mH L1 IND-808050 1
11 SC662K-3.3V LDO1 SOT-23(SOT-23-3) 1
12 ST-Link P1 DIP-1X4P-2.54MM-M 1
13 Pin 1mm P2,P3 PIN 1 MM 2
14 Pin 3*0.5mm P4,P5 PIN 3*0.5 MM 2
15 ST-Link-ext P6 HDR-2X1/2.54 1
16 BTA16-600CWRG Q1 TO-220(TO-220-3) 1
17 100Ω R1 2512 1
18 200 R2,R8,R10,R12 0805 4
19 150K 1/4w R3,R4 1206 2
20 100 R5,R9 0805 2
21 1.5K R6 0805 1
22 Hilda potentiometer R7 HILDA POTENTIOMETER 1
23 0.01Ω R11 0805 1
24 EL357N(B)(TA)-G U1 SOP-4_P2.54 1
25 LNK306DN U2 SOIC-7_150MIL 1
26 STM32F103C8T6 U3 LQFP48-0.5-7X7MM 1
27 MOC3052S-TA1 U4 SMD-6 1
28 INA213AIDCKR U5 TSSOP-6 1

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