Nov 29, 2009 #1 W wangkes9 Member level 2 Joined Jan 10, 2008 Messages 46 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 1,620 If there are Pole-zero pairs (doublets) in transition function , is there any effect on stability. An example or paper is preferred. Thanks.
If there are Pole-zero pairs (doublets) in transition function , is there any effect on stability. An example or paper is preferred. Thanks.
Nov 29, 2009 #2 LvW Advanced Member level 6 Joined May 7, 2008 Messages 5,912 Helped 1,753 Reputation 3,512 Reaction score 1,364 Trophy points 1,393 Location Germany Activity points 40,432 No, there will be no or only minor influence on stability properties. However, there my be a severe influence on settling time (time domain). Added later: Influence on settling time (increase) if both are not well matched!
No, there will be no or only minor influence on stability properties. However, there my be a severe influence on settling time (time domain). Added later: Influence on settling time (increase) if both are not well matched!
Nov 30, 2009 #3 W wanghs1986 Newbie level 6 Joined Jan 7, 2008 Messages 13 Helped 2 Reputation 4 Reaction score 1 Trophy points 1,283 Activity points 1,333 wangkes9 said: If there are Pole-zero pairs (doublets) in transition function , is there any effect on stability. An example or paper is preferred. Thanks. Click to expand... I saw your post on now newsmth, and again here. I would say the answer probably is yes, especially when other parasitic nondominant pole or coupling exists.
wangkes9 said: If there are Pole-zero pairs (doublets) in transition function , is there any effect on stability. An example or paper is preferred. Thanks. Click to expand... I saw your post on now newsmth, and again here. I would say the answer probably is yes, especially when other parasitic nondominant pole or coupling exists.
Nov 30, 2009 #4 LvW Advanced Member level 6 Joined May 7, 2008 Messages 5,912 Helped 1,753 Reputation 3,512 Reaction score 1,364 Trophy points 1,393 Location Germany Activity points 40,432 wanghs1986 said: wangkes9 said: If there are Pole-zero pairs (doublets) in transition function , is there any effect on stability. An example or paper is preferred. Thanks. Click to expand... I saw your post on now newsmth, and again here. I would say the answer probably is yes, especially when other parasitic nondominant pole or coupling exists. Click to expand... The answer, definitely, is no! And other parasitics were not part of the original question.
wanghs1986 said: wangkes9 said: If there are Pole-zero pairs (doublets) in transition function , is there any effect on stability. An example or paper is preferred. Thanks. Click to expand... I saw your post on now newsmth, and again here. I would say the answer probably is yes, especially when other parasitic nondominant pole or coupling exists. Click to expand... The answer, definitely, is no! And other parasitics were not part of the original question.
Dec 1, 2009 #5 C crystalballs Member level 1 Joined Jan 10, 2008 Messages 32 Helped 6 Reputation 12 Reaction score 4 Trophy points 1,288 Activity points 1,479 Hi, attached paper will be very useful to you. CBs
Dec 20, 2009 #6 P piyudhaker Newbie level 1 Joined Apr 17, 2008 Messages 1 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,284 Hi, It depends where thay occur. Stability depends on the phase margin at unity gain.