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You are here: Home » Blog » Ground/Vcc Bounce

Ground bounce demonstration board

December 9, 2018 by Rolf Ostergaard

Here is a good ground bounce demonstration. If you have been to one of the signal integrity classes, you will know about ground bounce. And VCC bounce. It’s one of these bad things that really can ruin a project.

This group of students is lucky enough to have Eric Bogatin as their instructor, and obviously, they go through ground bounce as well. They even build a board showing that effect. Some of the students got inspired to write a small piece for the Signal Integrity journal: “We Live in White Space“. A fast and easy read.

Ground bounce demonstration waveforms

When we do the local engineering university (DTU, Danish Technical University outside Copenhagen) summer course on signal integrity, there is a similar lab exercise. This includes both a board layout by the students and some measurements on a lab board that can demonstrate this effect. This is the lab board we use:

lab exercise board

We should maybe include a number of eval boards from various chip vendors, as the bigger (BGA) devices are too much to put on a student board in the class setting – yet may still have a significant ground bounce or VCC bounce.

What bigger device have you used recently with a significant ground bounce that we can use for an even better ground bounce demonstration?

Filed Under: Ground/Vcc Bounce Tagged With: Eric Bogatin, Ground bounce, SSN, University, Vcc bounce

About Rolf Ostergaard

Rolf V. Ostergaard, M.Sc.EE. has worked with signal integrity in many different projects since working for 3Com in 1998 as a colleague to Lee Ritchey in Silicon Valley. While building a consulting business focused on advanced electronics and embedded software in Denmark, Rolf has been helping numerous companies with signal integrity and power integrity both as design, simulations, coaching, measurements, and troubleshooting. He started conducting training in SI in 2004 and has trained hundreds of engineers, which lead to founding EE-Training to further expand this.
You can hire Rolf to do signal integrity training and consulting worldwide and remote.

Comments

  1. Peter says

    November 30, 2021 at 5:00 pm

    Dear Rolf,
    Where could I find out more about what’s on the DTU board and the way it works?

    Reply

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