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STD AC speed control v1, for grinder

License: CC-BY 3.0

Mode: Editors' pick

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Update time: 2022-05-23 07:15:35
Creation time: 2018-05-10 02:23:41
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 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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