-
- News
- Books
Featured Books
- design007 Magazine
Latest Issues
Current IssueSilicon to Systems: From Soup to Nuts
This month, we asked our expert contributors to weigh in on silicon to systems—what it means to PCB designers and design engineers, EDA companies, and the rest of the PCB supply chain... from soup to nuts.
Cost Drivers
In this month’s issue of Design007 Magazine, our expert contributors explain the impact of cost drivers on PCB designs and the need to consider a design budget. They discuss the myriad design cycle cost adders—hidden and not so hidden—and ways to add value.
Mechatronics
Our expert contributors discuss the advent of mechatronics in PCB design, the challenges and opportunities this creates for circuit board designers, and the benefits—to the employee and the company—of becoming a mechatronics engineer.
- Articles
- Columns
Search Console
- Links
- Events
||| MENU - design007 Magazine
Estimated reading time: Less than a minute
Contact Columnist Form
Trace Currents and Temperature, Part 4: Via Heat
Part 1 this series discussed the role of resistance and then formulated a basic model for analysis. Part 2 explored various results that were empirically obtained. Part 3 explored how to use the melting temperature of a trace to our advantage. In this fourth and final part of the series, I examine a way to deal with vias.
Recall the model developed in Part 1. I hypothesized that trace heating was a function of the i2R power dissipated in the trace, and trace cooling was a function of surface area. Perhaps these same fundamental principles can be applied to vias when looking at their current-carrying capacities.Read the full article here.This column originally appeared in the March 2013 issue of The PCB Design Magazine.
More Columns from Brooks' Bits
Brooks' Bits: Internal Trace Temperatures—More Complicated Than You ThinkBrooks' Bits: Electromagnetic Fields, Part 3 - How They Impact Coupling
Brooks' Bits: Electromagnetic Fields, Part 2: How They Impact Propagation Speed
Brooks' Bits: How Electromagnetic Fields Determine Impedance, Part 1
Trace Currents and Temperature, Part 3: Fusing Currents
Trace Currents and Temperature, Part 1: The Basic Model
The Skinny on Skin Effect, Part 3: Crossover Frequency
Brooks' Bits: The Skinny on Skin Effect, Part 2