By Topic

Charge Balance Analysis and State Transition Analysis of Hysteretic Voltage Mode Switching Converters

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

3 Author(s)
Wing-Hung Ki ; Dept. of Electron. & Comput. Eng., Hong Kong Univ. of Sci. & Technol., Hong Kong, China ; King-Man Lai ; Chenchang Zhan

Charge balance analysis and state transition analysis are presented in analyzing hysteretic voltage mode switching converters working in the steady state. It is shown that the ideal buck converter with a current-sink load can only work in discontinuous conduction mode (DCM) but not in continuous conduction mode (CCM), and the same converter with a resistive load can work in CCM, but the output voltage ripple is very large compared to the hysteresis window. Previously published CCM designs are functional because their operations actually rely on the small but nonzero equivalent series resistance (ESR) of the filtering capacitor. For the CCM buck converter with nonzero ESR, our proposed state transition analysis gives a much more accurate switching frequency than previous approaches. The hysteretic voltage mode boost and buck-boost converters are then analyzed, and shown to have no feasible operating region. Crucial simulation results are presented to confirm the analyses.

Published in:

Circuits and Systems I: Regular Papers, IEEE Transactions on  (Volume:58 ,  Issue: 5 )