符合 IPC-2221 / IPC-2152 标准
返回首页

PCB 设计博客

工程洞见、教程与最佳实践

深入探讨 PCB 走线宽度计算、过孔选型、阻抗控制和行业标准的文章。由工程师撰写,为工程师服务。

工程指南标准规范设计指南最佳实践高速设计工具
精选文章

PCB Trace Width for CAN Bus Routing

How wide should CAN bus traces be on a PCB? Practical routing guidance for CAN and CAN FD, including width targets, pair symmetry, impedance considerations, and fab-ready checkpoints.

2026年4月17日9 min 阅读

全部文章 (11)

工程指南2026年4月17日9 min

PCB Trace Width for CAN Bus Routing

How wide should CAN bus traces be on a PCB? Practical routing guidance for CAN and CAN FD, including width targets, pair symmetry, impedance considerations, and fab-ready checkpoints.

CAN BusCAN FDTrace Width
标准规范2024年12月20日8 min

IPC-2221 vs IPC-2152: Which to Use?

A comprehensive comparison of the two major PCB current carrying capacity standards. Learn when to use each and how they differ in trace width calculations.

IPC-2221IPC-2152PCB Standards
设计指南2024年12月18日10 min

PCB Copper Weight: 0.5oz vs 1oz vs 2oz

Compare 0.5oz, 1oz, and 2oz PCB copper weights. Real-world applications, cost trade-offs, and trace width impacts explained.

Copper WeightPCB ManufacturingTrace Width
最佳实践2024年12月16日12 min

10 Common PCB Trace Width Mistakes

Avoid costly PCB redesigns by learning the most common trace width mistakes. From temperature rise to manufacturing tolerances.

Trace WidthPCB MistakesDesign Tips
设计指南2024年12月14日9 min

Thermal Via vs Signal Via Design

Understanding the key differences between thermal vias and signal vias is crucial for effective PCB design. Learn sizing, placement, and when to use each type.

Thermal ViaSignal ViaVia Design
工程指南2024年12月12日11 min

Via Sizing: How Many Vias Needed?

Calculate the exact number of vias needed for your PCB. Engineering formulas for current requirements with practical examples.

Via SizingVia CountCurrent Capacity
高速设计2024年12月10日14 min

Microstrip vs Stripline vs CPW Guide

Compare microstrip, stripline, and coplanar waveguide for high-speed PCB design. Impedance calculations and use cases.

MicrostripStriplineCoplanar
高速设计2024年12月8日15 min

High-Speed Impedance: USB, HDMI, PCIe

Complete reference guide for high-speed interface impedance requirements. Covers USB 2.0/3.0, HDMI, PCIe Gen 1-5, DDR3/4/5, and more with practical design tips.

USBHDMIPCIe
工具2024年12月6日7 min

5 Free PCB Calculators for Engineers

Essential online calculators for PCB design: trace width, via current, impedance, and more. Boost your productivity with these free tools.

PCB CalculatorsFree ToolsEngineering Tools
最佳实践2024年12月4日13 min

PCB Design Checklist: 25 Key Points

Never send a flawed PCB to manufacturing again. 25-point checklist covering trace widths to impedance matching.

ChecklistManufacturingDFM
设计指南2024年12月2日10 min

Internal vs External PCB Layers

Thermal and electrical differences between internal and external PCB layers. How layer choice affects trace width and heat.

Internal LayerExternal LayerPCB Stackup

准备好计算了吗?

使用我们免费的 PCB 设计计算器将所学知识付诸实践。