Check Designs for EMI Early
After the success of "The Measurement Blues" and "The Lab in the Corner," Martin Rowe's next musical release sings the praises of the often-ignored EMI engineer.
Martin Rowe, Senior Technical Editor -- Test & Measurement World, 3/5/2007 9:30:00 AM
|
|
"Check Designs for EMI Early" Check out Martin's other songs: |
Music and lyrics by Martin Rowe
Copyright 2007 Martin Rowe
The new controller looked ready to go
But I said, “Well, I just don’t know.
Have you tested for EMI?
‘Cause If you haven’t, it just might not fly."
So we pulled out a makeshift antenna,
Hooked it up to a spectrum analyzer,
What we saw gave us the creeps.
Emissions galore, just look at those peaks!
We knew right then we had work to do.
Add some ferrites and shields with glue.
We added "band-aids" to get it out the door
But we knew what was in store.
You got to
Check designs for EMI early,
Starting with your power cord.
Check designs for EMI early,
Or you’ll lay out a new PC board.
If emissions are getting you down,
Just remember to probe around.
Measure current in the cable;
Look for emissions if you are able.
Place a clamp around each wire;
Make sure those peaks go no higher.
Look for harmonics from your clocks.
Don’t let ESD give you a shock.
Measure high, measure low.
Frequencies, the peaks got to go.
Go into the lab, and look for emissions,
Get that antenna into position.
Measure high, measure low.
Frequencies, the peaks got to go.
If emissions are getting you down,
Just remember to probe around.
So check designs for EMI early,
Starting at your power cord.
Check designs for EMI early,
Or you’ll lay out a new PC board.
"Test Designs for EMI Early" was recorded at Melville Park Studio, Boston, MA.
No related content found.
- 0 rated items found.
Datasheets.com Electronic Parts & Inventory Search
185 million searchable parts
- Part Number
- Description
- Inventory
- Products
- Manufacturers
View All Webcasts
