Please explain the simple schematic and PCB introduction as detailed as possible.

风度翩翩

Please explain the simple schematic and PCB introduction as detailed as possible. [Copy link]

 

Please explain the simple schematic and PCB introduction as detailed as possible.

王春雨

Here are some basic concepts and steps when you start learning schematics and PCB design:

Getting started with schematics:

1. Understanding the schematic :

   • A schematic is a graphical representation of a circuit design that shows the connections and functions between the components in the circuit.
   • Master the symbols of common electronic components, such as resistors, capacitors, inductors, transistors, etc.

2. learning tools :

   • Choose a suitable schematic design tool, such as Altium Designer, KiCad, EAGLE, etc.
   • Learn the basic operations of the tool, including adding components, connecting circuits, setting component parameters, etc.

3. Draw the schematic :

   • Get familiar with the tool by drawing schematics of simple circuits.
   • Emphasis is placed on understanding the connections between components in the circuit and the signal flow paths.

4. Labels and Annotations :

   • Appropriately label and annotate schematics so they can be understood and viewed by others.
   • Mark the value, model, parameter and other information of the components, and add comments to explain the circuit function and design intent.

5. Check and verify :

   • Review the schematic to ensure all connections are correct and as per the circuit design.
   • Perform logic verification and electrical characteristics simulation to ensure that the circuit design is feasible.

Getting Started with PCB:

1. Understanding PCB :

   • PCB (Printed Circuit Board) is the abbreviation of printed circuit board, which is used to support and connect electronic components to form a complete circuit system.
   • Understand the basic structure and working principle of PCB, including circuit layers, wiring, pads, etc.

2. Learn PCB design tools :

   • Choose a PCB design software that suits you, such as Altium Designer, KiCad, EAGLE, etc.
   • Learn the basic operation of the tool, including creating PCB files, importing schematics, layout, routing, etc.

3. Layout design :

   • According to the schematic design, various electronic components are placed on the PCB board, and the connection relationship and signal transmission path between the components are considered.
   • Pay attention to the layout of components to ensure that the circuit board is of appropriate size, has good heat dissipation, and is easy to repair and debug.

4. Wiring design :

   • Conduct circuit wiring, that is, connect wires and pads between electronic components.
   • Follow best wiring practices, such as minimizing signal transmission paths, reducing interference and crosstalk, etc.

5. PCB Rules Check :

   • Perform PCB rule checking (DRC) to ensure that the design meets the requirements of circuit board manufacturing, such as minimum line width, minimum spacing, minimum pad aperture, etc.

6. Generate manufacturing files :

   • Generate Gerber files, drilling files, etc. required for PCB manufacturing, and perform file checks to ensure correctness.
   • Prepare the BOM (Bill of Materials) for PCB design, listing the required components and their quantity, model, and other information.

7. Prototyping and testing :

   • Send the designed PCB files to the PCB manufacturer for production.
   • After receiving the samples, prototype assembly is carried out, and circuit functional testing and performance evaluation are carried out.

8. Feedback and Improvements :

   • Improve and optimize PCB design based on prototype test results and user feedback.
   • Continue to learn and accumulate experience to improve your PCB design capabilities and level.

Through step-by-step learning and practice, you will be able to master the basic skills of schematic and PCB design, and be able to complete simple circuit design and PCB production tasks independently.

泉趣人

Learning schematics and PCB design is an important foundation in the field of electronics. Here is a simple guide to get started:

Getting started with schematics:

1. Understand the role of the schematic :

   • A schematic is a graphical representation of a circuit design that shows the connections and relationships between the various components in the circuit. It is a tool used by designers to plan the structure and function of a circuit.

2. Learn basic component symbols :

   • Master the symbols and logos of common electronic components, such as resistors, capacitors, inductors, diodes, transistors, etc. Understand their representation and connection rules in schematic diagrams.

3. Master the connection method :

   • Learn how to draw connection lines and connection points in schematic diagrams to show the connection relationship between different components in the circuit. Understand the series, parallel and mixed connection methods of circuits.

4. Learn drawing techniques :

   • Learn how to draw schematics using drawing software or CAD tools. Master basic operations such as drawing lines, adding symbols, marking components, and adding annotations.

5. Understand the circuit functional modules :

   • Understand the functional modules of the circuit and the relationship between modules, such as power module, signal processing module, control module, etc. Decompose the circuit into different functional modules according to design requirements.

6. Learn standard symbols and naming conventions :

   • Understand industry standards and naming conventions such as IEC, ANSI, etc. to ensure design consistency and readability.

7. Reference examples and tutorials :

   • Consult relevant books, tutorials, and online resources to learn from other people's practices and techniques to improve your own designs.

Getting Started with PCB:

1. Understand the role of PCB :

   • PCB (Printed Circuit Board) is an important component of electronic devices, used to support and connect electronic components to form a complete circuit.

2. Learn the PCB design process :

   • Understand the basic process of PCB design, including schematic design, layout and routing, circuit simulation, PCB drawing, component placement, routing, design rule checking (DRC) and output manufacturing files.

3. Master PCB design software :

   • Learn to use professional PCB design software, such as Altium Designer, Cadence Allegro, OrCAD, etc. Be familiar with the software interface, functions and tools, and master operations such as drawing schematics, layout and routing, and exporting manufacturing files.

4. Understand the design specifications and constraints :

   • Learn the specifications and constraints of PCB design, including component spacing, line width, layer spacing, impedance control, etc. Set corresponding constraints according to design requirements.

5. Learn layout and routing techniques :

   • Master good layout and routing skills, including reasonable component layout, signal and power line routing planning, ground line design, signal integrity and electromagnetic compatibility considerations.

6. Perform design verification and simulation :

   • Use simulation tools to verify the design, such as signal integrity analysis, electromagnetic compatibility analysis, etc. Make necessary adjustments and optimizations based on the simulation results.

7. Learn the manufacturing and assembly processes :

   • Understand the basic process of PCB manufacturing and assembly, including raw material selection, printing, chemical etching, drilling, metallization, assembly, welding and other links.

8. Practical projects :

   • Participate in actual PCB design projects and continuously improve your design capabilities and experience through practice.

The above is a basic guide to learning schematics and PCB design. I hope it will be helpful to you.

星空无线

Understanding schematics and PCBs is one of the basic skills for electronic engineers. Here is a simple guide to getting started:

1. Getting started with schematics:

a. Understand basic symbols:

• Power symbol : Indicates the power connection point and power type.
• Passive components : such as resistors, capacitors, inductors, etc.
• Active components : such as transistors, diodes, integrated circuits, etc.

b. Learning circuit connection:

• Connection lines : used to connect different components and connection points.
• Power Connections : Connect power to the appropriate locations in the circuit.
• Grounding : Proper grounding ensures circuit stability and safety.

c. Understand signal flow and functional blocks:

• Signal flow : Trace the path of a signal from input to output and understand the transmission and processing of signals.
• Functional blocks : Divide the circuit into logical blocks for easier understanding and debugging.

2. Introduction to PCB:

a. Master PCB design software:

• Choose the right software : such as Altium Designer, Eagle, KiCad, etc.
• Learn the basics : draw board layers, lay out components, connect pins, etc.

b. Understand the PCB hierarchy:

• Board layers : Understand the structure of the PCB board, including the top layer, bottom layer, inner layer, etc.
• Silk screen layer : used to display component identification and location.
• Pad layer : defines soldering locations and pin connections.

c. Learn layout and routing:

• Component Placement : Arrange component locations to minimize trace lengths and crossings.
• Signal routing : Optimize signal paths to ensure circuit performance and stability.
• Power and ground routing : Keep the power and ground traces short and wide to reduce voltage drops and signal interference.

d. Understand the PCB manufacturing process:

• PCB manufacturing file generation : Generate Gerber files and other files for manufacturing.
• PCB production : The designed PCB board is sent to the PCB manufacturer for production.

3. Practical projects and cases:

• Practice drawing simple circuit diagrams and PCB designs : start with a simple LED blinking circuit and work your way up to more complex circuit designs.
• Participate in open source projects : Join open source projects on platforms such as GitHub to learn from others’ designs and experiences.

Through the above steps, you can gradually build up a basic understanding and practical skills of schematics and PCB design. Continuous learning and exploration in practice will help improve your electronic engineering capabilities.