Review of the Adaptive On-time Control Circuits for Buck Converters

Wen Wei Chen, Jiann-Fuh Chen

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Many novel control circuits, such as central processing unit and electronic devices, have been reported for power supplies to meet stringent requirements in recent years. These devices can reduce standby power loss and increase the load transient response to achieve high performance and low loss of system design. Owing to the rapid development of microprocessors, over a billion transistors have been integrated into one processor.The power converter must be able to regulate its output voltage to be near constant as the load current demand varies anywhere from zero to full load, even when the change occurs in a relatively short time. A good performance of load transient response can save on output capacitor size and cost. Meanwhile, settling time and stability can be displayed in the load transient response, so power converter performance must be tested. Based on these requirements, the conventional constant on-time control circuit is widely used in central processing unit applications and other electronic devices with high slew rates because of the advantages of faster load transient response and better light-load efficiency compared with the current-mode control circuit.However, the on-time generator circuit of the conventional constant on-time control circuit can generate the fixed on-time width to control the driver circuit and achieve the voltage regulation if the conventional constant on-time control circuit wants to regulate a high VOUT and an increase in switching loss occurs, so this chapter is showed to compare different types of control circuit for buck converter like conventional constant on-time control circuit for buck converter, adaptive on-time control circuits for buck converter, ripple-based adaptive on-time control circuit with virtual inductor current ripple for buck converter, and current-mode adaptive on-time control circuit for buck converter.

Original languageEnglish
Title of host publicationPower Systems
PublisherSpringer Verlag
Pages103-122
Number of pages20
Edition9789811070037
DOIs
Publication statusPublished - 2018 Jan 1

Publication series

NamePower Systems
Number9789811070037
ISSN (Print)1612-1287
ISSN (Electronic)1860-4676

Fingerprint

Networks (circuits)
Transient analysis
Power converters
Program processors
Voltage control
Microprocessor chips
Transistors
Capacitors
Systems analysis
Electric potential
Costs

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this

Chen, W. W., & Chen, J-F. (2018). Review of the Adaptive On-time Control Circuits for Buck Converters. In Power Systems (9789811070037 ed., pp. 103-122). (Power Systems; No. 9789811070037). Springer Verlag. https://doi.org/10.1007/978-981-10-7004-4_4
Chen, Wen Wei ; Chen, Jiann-Fuh. / Review of the Adaptive On-time Control Circuits for Buck Converters. Power Systems. 9789811070037. ed. Springer Verlag, 2018. pp. 103-122 (Power Systems; 9789811070037).
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Chen, WW & Chen, J-F 2018, Review of the Adaptive On-time Control Circuits for Buck Converters. in Power Systems. 9789811070037 edn, Power Systems, no. 9789811070037, Springer Verlag, pp. 103-122. https://doi.org/10.1007/978-981-10-7004-4_4

Review of the Adaptive On-time Control Circuits for Buck Converters. / Chen, Wen Wei; Chen, Jiann-Fuh.

Power Systems. 9789811070037. ed. Springer Verlag, 2018. p. 103-122 (Power Systems; No. 9789811070037).

Research output: Chapter in Book/Report/Conference proceedingChapter

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Chen WW, Chen J-F. Review of the Adaptive On-time Control Circuits for Buck Converters. In Power Systems. 9789811070037 ed. Springer Verlag. 2018. p. 103-122. (Power Systems; 9789811070037). https://doi.org/10.1007/978-981-10-7004-4_4