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Analysis and implementation of a semi-integrated Buck converter with static feedback control

Strandberg, Roland LU and Yuan, Jiren LU (2000) In Proceedings of 43rd Midwest Symposium on Circuits and Systems 2. p.934-937
Abstract
The switches and the control circuit of Buck converter with static feedback control have been implemented in a standard digital 0.6 μm CMOS process. The control used is a direct large-signal approach, and the converter has been proven to be globally asymptotically stable using the theory of successors in combination with Lyapunov's direct method. One very important design parameter is the output ripple, and prediction has shown good agreement between the describing function method and simulations. The simulated ripple of the implemented converter is of the order of ±3%, and the efficiency of the complete converter is approximately 75% at 1.5 V output on a 10Ω resistive load. The inductor and capacitor are external components, but the rest... (More)
The switches and the control circuit of Buck converter with static feedback control have been implemented in a standard digital 0.6 μm CMOS process. The control used is a direct large-signal approach, and the converter has been proven to be globally asymptotically stable using the theory of successors in combination with Lyapunov's direct method. One very important design parameter is the output ripple, and prediction has shown good agreement between the describing function method and simulations. The simulated ripple of the implemented converter is of the order of ±3%, and the efficiency of the complete converter is approximately 75% at 1.5 V output on a 10Ω resistive load. The inductor and capacitor are external components, but the rest of the converter is integrated and occupies 1.9 mm2. The start-up is very quick (≃10 μs) and so is the recovery from any disturbance. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Proceedings of 43rd Midwest Symposium on Circuits and Systems
volume
2
pages
934 - 937
external identifiers
  • Scopus:0034466255
ISBN
0-7803-6475-9
DOI
10.1109/MWSCAS.2000.952907
language
English
LU publication?
yes
id
a5000f0f-34b3-44f3-805b-8728f5348e32 (old id 1761993)
date added to LUP
2011-01-13 14:41:22
date last changed
2016-10-13 04:58:59
@misc{a5000f0f-34b3-44f3-805b-8728f5348e32,
  abstract     = {The switches and the control circuit of Buck converter with static feedback control have been implemented in a standard digital 0.6 μm CMOS process. The control used is a direct large-signal approach, and the converter has been proven to be globally asymptotically stable using the theory of successors in combination with Lyapunov's direct method. One very important design parameter is the output ripple, and prediction has shown good agreement between the describing function method and simulations. The simulated ripple of the implemented converter is of the order of ±3%, and the efficiency of the complete converter is approximately 75% at 1.5 V output on a 10Ω resistive load. The inductor and capacitor are external components, but the rest of the converter is integrated and occupies 1.9 mm2. The start-up is very quick (≃10 μs) and so is the recovery from any disturbance.},
  author       = {Strandberg, Roland and Yuan, Jiren},
  isbn         = {0-7803-6475-9},
  language     = {eng},
  pages        = {934--937},
  series       = {Proceedings of 43rd Midwest Symposium on Circuits and Systems},
  title        = {Analysis and implementation of a semi-integrated Buck converter with static feedback control},
  url          = {http://dx.doi.org/10.1109/MWSCAS.2000.952907},
  volume       = {2},
  year         = {2000},
}