Designing a Dynamic Ramp with Invariant Inductor in Current-Mode Control Circuit for Buck Converter

Wen Wei Chen, Jiann-Fuh Chen

研究成果: Chapter

摘要

Current-mode control circuit is widely used to achieve better transient response, because the current-mode control circuit contains two feedback signals for a voltage loop and a current loop. A difference between the voltage-mode control circuit and current-mode control circuit, the current-mode control circuit can sense the inductor current signal which causes the control to have a better transient response. However, it also produces a subharmonic issue when the duty cycle is larger than 50%. Designing a dynamic ramp with invariant inductor in current-mode control circuit for buck converter is showed in this chapter. This configuration maintains system stability under a wide range of the input/output voltages without changing the inductor and compensation circuit. The dynamic ramp can be adjusted according to varied the output voltage or the voltage droop between the input voltage and the output voltage to maintain bandwidth and phase margin using the invariant inductor and compensation circuit. Finally, 14-V input voltage, 12-V output voltage, and 24-W output power with the dynamic ramp sampling the output voltage is implemented using MathCAD predictions, SIMPLIS simulation results, and experimental results to verify its viability and superiority.

原文English
主出版物標題Power Systems
發行者Springer Verlag
頁面81-102
頁數22
版本9789811070037
DOIs
出版狀態Published - 2018 一月 1

出版系列

名字Power Systems
號碼9789811070037
ISSN(列印)1612-1287
ISSN(電子)1860-4676

指紋

Networks (circuits)
Electric potential
Transient analysis
System stability
Sampling
Feedback
Bandwidth
Compensation and Redress

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

引用此文

Chen, W. W., & Chen, J-F. (2018). Designing a Dynamic Ramp with Invariant Inductor in Current-Mode Control Circuit for Buck Converter. 於 Power Systems (9789811070037 編輯, 頁 81-102). (Power Systems; 編號 9789811070037). Springer Verlag. https://doi.org/10.1007/978-981-10-7004-4_3
Chen, Wen Wei ; Chen, Jiann-Fuh. / Designing a Dynamic Ramp with Invariant Inductor in Current-Mode Control Circuit for Buck Converter. Power Systems. 9789811070037. 編輯 Springer Verlag, 2018. 頁 81-102 (Power Systems; 9789811070037).
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Chen, WW & Chen, J-F 2018, Designing a Dynamic Ramp with Invariant Inductor in Current-Mode Control Circuit for Buck Converter. 於 Power Systems. 9789811070037 edn, Power Systems, 編號 9789811070037, Springer Verlag, 頁 81-102. https://doi.org/10.1007/978-981-10-7004-4_3

Designing a Dynamic Ramp with Invariant Inductor in Current-Mode Control Circuit for Buck Converter. / Chen, Wen Wei; Chen, Jiann-Fuh.

Power Systems. 9789811070037. 編輯 Springer Verlag, 2018. p. 81-102 (Power Systems; 編號 9789811070037).

研究成果: Chapter

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Chen WW, Chen J-F. Designing a Dynamic Ramp with Invariant Inductor in Current-Mode Control Circuit for Buck Converter. 於 Power Systems. 9789811070037 編輯 Springer Verlag. 2018. p. 81-102. (Power Systems; 9789811070037). https://doi.org/10.1007/978-981-10-7004-4_3