| Re: Damping factor - SE vs. PP [message #11233 is a reply to message #11232] |
Fri, 14 October 2005 01:11   |
Damir
Messages: 1005
Registered: May 2009
|
Illuminati (2nd Degree) |
|
|
We are talking about dinamic anode resistance. It is increment change of alternating anode voltage "through" increment change of (inphase) anode current. Static anode characteristics are not ideal, and because of curvature, we have "added" second, third and other higher order "terms" to the simple ia=ua/rp. Contribution of third and other odd-order "terms" to the fundamental expression changes the simple static rp=ua/ia.
My point is that with typical use of SE amp (small power, max. power only on short peaks), we have rel. small ua, rel. small contribution of odd-order distortion, and we can say that rp=ua/ia, or dinamic rp is about static rp, found graphically at the operating point.
|
|
|
|
Posting Rules
Members
Search
Help
Register
Login
Get a T-Shirt!
