By Topic

Stability study of a voltage-mode buck regulator using system poles approach

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
Wong, K. ; ON Semicond., Phoenix, AZ, USA

This paper presents a stability study of a voltage-mode buck regulator using system poles approach. Under different input and output conditions the different operating points are first found individually. Sensitivity matrices of these operating points are studied in order to estimate whether the points are stable or not. When system poles (i.e., eigenvalues of the sensitivity matrix) go into an unstable region, oscillating or bifurcation would occur. Hence, the system behavior of the voltage-mode buck regulator under a variation of input and output conditions is demonstrated. This paper also investigates the stability caused by the feedback capacitor of the buck regulator through this system poles approach. Making use of the system poles movement, stable operation can be extended and explained systematically.

Published in:

Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on  (Volume:5 )

Date of Conference:

2002