Freddybaby Posted April 26, 2007 Report Share Posted April 26, 2007 Trying to determine the frequency components of overshoot and ringing on a fast rise/fall transient.If I have say a 10nS rise with some "hash" on the crest. Then expanding that portion of the wave canI assume the various full cycle transitions are the actual frequency components in my circuit ? Quote Link to comment Share on other sites More sharing options...
indulis Posted April 27, 2007 Report Share Posted April 27, 2007 Yes, the period of the ringing is related to the time constant of the components causing it. The trick is... what are the components!! Ringing is not considered a first order affect. A large portion of the "values" are probably from parasitics. Quote Link to comment Share on other sites More sharing options...
Kevin Weddle Posted May 2, 2007 Report Share Posted May 2, 2007 The rise time is proportional to the time of the square wave and is made by amplifying the sinewave using high gain. So it's dependent on gain and the time of the sine wave. However, the time of the square wave is the biggest factor when comparing the rise time of let's say a 1KHz square wave to a 1MHz square wave. And I believe overshoot, undershoot, and ringing are caused by resonance. Quote Link to comment Share on other sites More sharing options...
indulis Posted May 3, 2007 Report Share Posted May 3, 2007 KevinThe rise time is proportional to the time of the square wave and is made by amplifying the sinewave using high gain. So it's dependent on gain and the time of the sine wave.WHAT????? Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.