Computer Science – Systems and Control
Scientific paper
2012-03-26
Computer Science
Systems and Control
Submitted to an IEEE Journal on Dec. 23, 2011, and resubmitted to IEEE Transactions on Circuits and Systems-I on Feb. 14, 2012
Scientific paper
A general critical condition of subharmonic oscillation in terms of the loop gain is derived. Many closed-form critical conditions for various control schemes in terms of converter parameters are also derived. Some previously known critical conditions become special cases in the generalized framework. Given an arbitrary control scheme, a systematic procedure is proposed to derive the critical condition for that control scheme. Different control schemes share similar forms of critical conditions. For example, both V2 control and voltage mode control have the same form of critical condition. A peculiar phenomenon in average current mode control where subharmonic oscillation occurs in a window value of pole can be explained by the derived critical condition. A ripple amplitude index to predict subharmonic oscillation proposed in the past research has limited application and is shown invalid for a converter with a large pole.
No associations
LandOfFree
Closed-Form Critical Conditions of Subharmonic Oscillations for Buck Converters does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Closed-Form Critical Conditions of Subharmonic Oscillations for Buck Converters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Closed-Form Critical Conditions of Subharmonic Oscillations for Buck Converters will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-640219