Pulse Bursting Phenomenon in Constant On-time Controlled Boost Converter

Song Wei; Li Shaopeng

doi:doi:10.11648/j.ajtte.20220701.12

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Pulse Bursting Phenomenon in Constant On-time Controlled Boost Converter

Song Wei, Li Shaopeng

Published in American Journal of Traffic and Transportation Engineering (Volume 7, Issue 1)

Received: 21 December 2021 Accepted: 14 January 2022 Published: 21 January 2022

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Abstract

Constant on-time (COT) is a pulse frequency modulation based control method, which is widely used for the controller of switching mode power supplies due to the advantages of simple implementation, low cost and good performances. In fact, like hysteretic control, COT is also a ripple-based control, and its loop stability is very dependent on the output voltage ripple characteristic. COT controlled buck converter is mainly concerned in nowadays. For boost converter, the output voltage ripple characteristic is quite different with that of buck converter. Thus, the stability of COT controlled boost converter is necessary to be investigated. In this paper, with particular theoretical analysis, the unique pulse bursting phenomenon in COT controlled boost converter appears when the time constant of the output capacitor is relatively small, which results in large inductor current and output voltage swing. The quantitative relationship between the time constant and the other circuit parameters such as input voltage, output current and inductance is deduced, which is very different with that of COT controlled buck converter. Simulation and ex-perimental results are provided to verify the theoretical analysis results. The investigation presented in this paper gives an im-portant guideline for the circuit parameter design of COT con-trolled boost converter.

Published in	American Journal of Traffic and Transportation Engineering (Volume 7, Issue 1)
DOI	10.11648/j.ajtte.20220701.12
Page(s)	14-18
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Pulse Bursting, Constant On-time (COT), Boost Converter, Time Constant

References

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[2]	Li, D., S. C. Wong, and K. T. Chi. "Bifurcation Analysis of a Current-Mode Controlled DC Cascaded System and Applications to Design." IEEE Journal of Emerging and Selected Topics in Power Electronics PP. 99 (2020): 1-1.
[3]	N. Kong, D. S. Ha, J. Li, and F. C. Lee, “Off-time prediction in digital constant on-time modulation for dc-dc converters,” in Proc. IEEE Int. Symp. Circuits Syst, 2008, pp. 3270-3273.
[4]	Aroudi, A. E., et al. "Analytical Determination of Fast-Scale Instability Boundaries for Current Mode Controlled DC–DC Converters With CPL and Closed Voltage Loop." IEEE Journal on Emerging and Selected Topics in Circuits and Systems 11. 1 (2021): 39-48.
[5]	Ridley, R. B.. "A new, continuous-time model for current-mode control." IEEE Transactions on Power Electronics 6. 2 (1991): 271-280.
[6]	X. Xu and X. Wu, “High dimming ratio LED driver with fast transient boost converter,” in Proc. IEEE PESC, 2008, pp. 4192-4195.
[7]	J. Li and F. C. Lee, “New modeling approach and equivalent circuit representation for current-mode control,” IEEE Trans. Power Electron., vol. 25, no. 5, pp. 1218-1230, May. 2010.
[8]	Chanrong, et al. "A high performance adaptive on-time controlled valley-current-mode DC–DC buck converter." Journal of Semiconductors v. 41. 06 (2020): 53-60.
[9]	J. Wang, J. Xu, and B. Bao, “Analysis of pulse bursting phenomenon in constant-on-time-controlled buck converter,” IEEE Trans. Ind. Electron., vol. 58, no. 12, pp. 5406-5410, Dec. 2011.
[10]	Cho, Younghoon, and P. Jang. "Analysis and Design for Output Voltage Regulation in Constant-on-Time-Controlled Fly-Buck Converter." Electronics 10. 16 (2021): 1886.
[11]	Michal, V., Z Nicolò, and A. Matteo. "Low-complexity inductance estimation for switched-mode power converters using peak-current mode control." IET Power Electronics 13. 11 (2020): 2269-2273.
[12]	Liu, K. P., et al. "Control circuit and method for a constant on-time PWM switching converter." US, US20080030181 A1. 2010.
[13]	Morong, W. H., and T. E. Lawson. "Power converter with demand pulse isolation." (2015).
[14]	Yen, Tzu Yang, and C. Y. Chen. "Constant-on-time generation circuit and buck converter." (2014).
[15]	M. D. Bermardo and F. Vasca, “Discrete-time maps for the analysis of bifurcations and chaos in DC/DC converters,” IEEE Trans. Circuits Syst. I, Fundam. Theory Appl., vol. 47, no. 2, pp. 130-143, Feb. 2000.
[16]	Wang, J., et al. "Dynamical Effects of Equivalent Series Resistance of Output Capacitor in Constant On-Time Controlled Buck Converter." IEEE Transactions on Industrial Electronics 60. 5 (2013): 1759-1768.

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APA Style

Song Wei, Li Shaopeng. (2022). Pulse Bursting Phenomenon in Constant On-time Controlled Boost Converter. American Journal of Traffic and Transportation Engineering, 7(1), 14-18. https://doi.org/10.11648/j.ajtte.20220701.12

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ACS Style

Song Wei; Li Shaopeng. Pulse Bursting Phenomenon in Constant On-time Controlled Boost Converter. Am. J. Traffic Transp. Eng. 2022, 7(1), 14-18. doi: 10.11648/j.ajtte.20220701.12

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AMA Style

Song Wei, Li Shaopeng. Pulse Bursting Phenomenon in Constant On-time Controlled Boost Converter. Am J Traffic Transp Eng. 2022;7(1):14-18. doi: 10.11648/j.ajtte.20220701.12

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@article{10.11648/j.ajtte.20220701.12,
  author = {Song Wei and Li Shaopeng},
  title = {Pulse Bursting Phenomenon in Constant On-time Controlled Boost Converter},
  journal = {American Journal of Traffic and Transportation Engineering},
  volume = {7},
  number = {1},
  pages = {14-18},
  doi = {10.11648/j.ajtte.20220701.12},
  url = {https://doi.org/10.11648/j.ajtte.20220701.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajtte.20220701.12},
  abstract = {Constant on-time (COT) is a pulse frequency modulation based control method, which is widely used for the controller of switching mode power supplies due to the advantages of simple implementation, low cost and good performances. In fact, like hysteretic control, COT is also a ripple-based control, and its loop stability is very dependent on the output voltage ripple characteristic. COT controlled buck converter is mainly concerned in nowadays. For boost converter, the output voltage ripple characteristic is quite different with that of buck converter. Thus, the stability of COT controlled boost converter is necessary to be investigated. In this paper, with particular theoretical analysis, the unique pulse bursting phenomenon in COT controlled boost converter appears when the time constant of the output capacitor is relatively small, which results in large inductor current and output voltage swing. The quantitative relationship between the time constant and the other circuit parameters such as input voltage, output current and inductance is deduced, which is very different with that of COT controlled buck converter. Simulation and ex-perimental results are provided to verify the theoretical analysis results. The investigation presented in this paper gives an im-portant guideline for the circuit parameter design of COT con-trolled boost converter.},
 year = {2022}
}

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TY  - JOUR
T1  - Pulse Bursting Phenomenon in Constant On-time Controlled Boost Converter
AU  - Song Wei
AU  - Li Shaopeng
Y1  - 2022/01/21
PY  - 2022
N1  - https://doi.org/10.11648/j.ajtte.20220701.12
DO  - 10.11648/j.ajtte.20220701.12
T2  - American Journal of Traffic and Transportation Engineering
JF  - American Journal of Traffic and Transportation Engineering
JO  - American Journal of Traffic and Transportation Engineering
SP  - 14
EP  - 18
PB  - Science Publishing Group
SN  - 2578-8604
UR  - https://doi.org/10.11648/j.ajtte.20220701.12
AB  - Constant on-time (COT) is a pulse frequency modulation based control method, which is widely used for the controller of switching mode power supplies due to the advantages of simple implementation, low cost and good performances. In fact, like hysteretic control, COT is also a ripple-based control, and its loop stability is very dependent on the output voltage ripple characteristic. COT controlled buck converter is mainly concerned in nowadays. For boost converter, the output voltage ripple characteristic is quite different with that of buck converter. Thus, the stability of COT controlled boost converter is necessary to be investigated. In this paper, with particular theoretical analysis, the unique pulse bursting phenomenon in COT controlled boost converter appears when the time constant of the output capacitor is relatively small, which results in large inductor current and output voltage swing. The quantitative relationship between the time constant and the other circuit parameters such as input voltage, output current and inductance is deduced, which is very different with that of COT controlled buck converter. Simulation and ex-perimental results are provided to verify the theoretical analysis results. The investigation presented in this paper gives an im-portant guideline for the circuit parameter design of COT con-trolled boost converter.
VL  - 7
IS  - 1
ER  -

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Author Information

Song Wei

China Railway International CO. LTD., Beijing, China
Li Shaopeng

China Railway Design Corporation, Tianjin, China

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APA Style

Song Wei, Li Shaopeng. (2022). Pulse Bursting Phenomenon in Constant On-time Controlled Boost Converter. American Journal of Traffic and Transportation Engineering, 7(1), 14-18. https://doi.org/10.11648/j.ajtte.20220701.12

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ACS Style

Song Wei; Li Shaopeng. Pulse Bursting Phenomenon in Constant On-time Controlled Boost Converter. Am. J. Traffic Transp. Eng. 2022, 7(1), 14-18. doi: 10.11648/j.ajtte.20220701.12

Copy | Download

AMA Style

Song Wei, Li Shaopeng. Pulse Bursting Phenomenon in Constant On-time Controlled Boost Converter. Am J Traffic Transp Eng. 2022;7(1):14-18. doi: 10.11648/j.ajtte.20220701.12

Copy | Download

@article{10.11648/j.ajtte.20220701.12,
  author = {Song Wei and Li Shaopeng},
  title = {Pulse Bursting Phenomenon in Constant On-time Controlled Boost Converter},
  journal = {American Journal of Traffic and Transportation Engineering},
  volume = {7},
  number = {1},
  pages = {14-18},
  doi = {10.11648/j.ajtte.20220701.12},
  url = {https://doi.org/10.11648/j.ajtte.20220701.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajtte.20220701.12},
  abstract = {Constant on-time (COT) is a pulse frequency modulation based control method, which is widely used for the controller of switching mode power supplies due to the advantages of simple implementation, low cost and good performances. In fact, like hysteretic control, COT is also a ripple-based control, and its loop stability is very dependent on the output voltage ripple characteristic. COT controlled buck converter is mainly concerned in nowadays. For boost converter, the output voltage ripple characteristic is quite different with that of buck converter. Thus, the stability of COT controlled boost converter is necessary to be investigated. In this paper, with particular theoretical analysis, the unique pulse bursting phenomenon in COT controlled boost converter appears when the time constant of the output capacitor is relatively small, which results in large inductor current and output voltage swing. The quantitative relationship between the time constant and the other circuit parameters such as input voltage, output current and inductance is deduced, which is very different with that of COT controlled buck converter. Simulation and ex-perimental results are provided to verify the theoretical analysis results. The investigation presented in this paper gives an im-portant guideline for the circuit parameter design of COT con-trolled boost converter.},
 year = {2022}
}

Copy | Download

TY  - JOUR
T1  - Pulse Bursting Phenomenon in Constant On-time Controlled Boost Converter
AU  - Song Wei
AU  - Li Shaopeng
Y1  - 2022/01/21
PY  - 2022
N1  - https://doi.org/10.11648/j.ajtte.20220701.12
DO  - 10.11648/j.ajtte.20220701.12
T2  - American Journal of Traffic and Transportation Engineering
JF  - American Journal of Traffic and Transportation Engineering
JO  - American Journal of Traffic and Transportation Engineering
SP  - 14
EP  - 18
PB  - Science Publishing Group
SN  - 2578-8604
UR  - https://doi.org/10.11648/j.ajtte.20220701.12
AB  - Constant on-time (COT) is a pulse frequency modulation based control method, which is widely used for the controller of switching mode power supplies due to the advantages of simple implementation, low cost and good performances. In fact, like hysteretic control, COT is also a ripple-based control, and its loop stability is very dependent on the output voltage ripple characteristic. COT controlled buck converter is mainly concerned in nowadays. For boost converter, the output voltage ripple characteristic is quite different with that of buck converter. Thus, the stability of COT controlled boost converter is necessary to be investigated. In this paper, with particular theoretical analysis, the unique pulse bursting phenomenon in COT controlled boost converter appears when the time constant of the output capacitor is relatively small, which results in large inductor current and output voltage swing. The quantitative relationship between the time constant and the other circuit parameters such as input voltage, output current and inductance is deduced, which is very different with that of COT controlled buck converter. Simulation and ex-perimental results are provided to verify the theoretical analysis results. The investigation presented in this paper gives an im-portant guideline for the circuit parameter design of COT con-trolled boost converter.
VL  - 7
IS  - 1
ER  -

Copy | Download