View Single Post
Old 03-18-2009, 01:31 AM   #48 (permalink)
Join Date: Feb 2009
Location: phx
Posts: 260
Thanks: 0
Thanked 41 Times in 34 Posts
The first picture shows the gate-source and drain-source probes. The drain-source has all the ringing.

The first photo is at a lower current, maybe 2 amps, while the 2nd is at a higher current - around 6 amps. You can see the amplitude of the ringing increase with current.
Attached Thumbnails
Click image for larger version

Name:	IMG_0651.jpg
Views:	110
Size:	55.8 KB
ID:	2946   Click image for larger version

Name:	IMG_0652.jpg
Views:	104
Size:	24.0 KB
ID:	2947  
  Reply With Quote