Electric competition project "Automatic Paper Counting Display Device"

Lesson 1: Working principle of paper counting device and determining circuit scheme
Project principle analysis (paper technology device principle analysis) 00:03:50-00:10:53Capacitance
measurement scheme 00:14:41-00:19:
08Heng Voltage charging scheme 00:19:20-00:31:30
Constant current charging circuit scheme analysis and simulation verification 00:31:55-02:18:35
Paper technology device principle design review: 02:18:36-02:21 :30
Circuit framework analysis 02:22:50-02:33:10

Lesson 2: Schematic design of paper counting device
Capacitance detection signal modulation circuit 8.20-1.24.30
Motor drive circuit 1.37.00-1.47.00
Current detection circuit 1.49.00-2.01.00

Lesson 3: 4-layer paper counting device layout explanation
Overall introduction and inspection of 4-layer PCB project design 0.01.10---0.23.15 
Use the interactive function of Altium Designer to easily layout 0.23.20-- -0.36.20
Practical demonstration of interactive layout design of PCB 0.36.20---1.48.38
Questions and answers 1.48.40---End

Lesson 4: 4-layer paper counting device wiring explanation
layout optimization 00:30-8 :14
Stacking and rule settings 8:15-38:14
Sector hole and signal line processing 38:15-1:43:15
Power supply processing 1:43:28-1:54:40
DRC inspection and copper laying processing 1: 54:41-1:59:02
Adding suture holes and placing Marks 2:03:16-2:08:51
Output of Gerber files and coordinate files 2:10:02-2:16:50

Lesson 5: Welding precautions and physical debugging of main functions
Welding precautions 0-24
Physical debugging of main functions 24:00-1.33:00 Calculation and derivation 1.47:00-2:14.00

Lesson 6: Data processing algorithms and noise processing methods
Project submission notes Matters and processes 5:30-15:18
Review of formula derivation process 15:19-23:59
Explanation of test operation steps 24:00-26:10
Demonstration 26:11-1:10:00
Detailed formula derivation process 1:10: 01-1: 32:52
Linear regulated power supply demonstration 1:33: 02-1:37:38
Linear regulated power supply situation analysis 1:37:40-1:50:21
Solution and cause analysis 1 :50:22-2:00:53Short
circuit function demonstration 2:01:42-2:2:58

• Chapter 1：The working principle of the paper counting device and the determination of the circuit scheme (2 hours and 38 minutes and 1 seconds)

• Chapter 2：Schematic design of paper counting device (2 hours and 26 minutes and 26 seconds)

• Chapter 3：Explanation of layout of 4-layer paper counting device (2 hours and 1 minutes and 58 seconds)

• Chapter 4：Wiring explanation of 4-layer paper counting device (2 hours and 21 minutes and 37 seconds)

• Chapter 5：Welding precautions and physical debugging of main functions (2 hours and 18 minutes and 48 seconds)

• Chapter 6：Data processing algorithms and noise processing methods (2 hours and 19 minutes and 20 seconds)