Abstract
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.
| Original language | English |
|---|---|
| Title of host publication | Power Systems |
| Publisher | Springer Verlag |
| Pages | 81-102 |
| Number of pages | 22 |
| Edition | 9789811070037 |
| DOIs | |
| Publication status | Published - 2018 Jan 1 |
Publication series
| Name | Power Systems |
|---|---|
| Number | 9789811070037 |
| ISSN (Print) | 1612-1287 |
| ISSN (Electronic) | 1860-4676 |
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All Science Journal Classification (ASJC) codes
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
Cite this
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Designing a Dynamic Ramp with Invariant Inductor in Current-Mode Control Circuit for Buck Converter. / Chen, Wen Wei; Chen, Jiann-Fuh.
Power Systems. 9789811070037. ed. Springer Verlag, 2018. p. 81-102 (Power Systems; No. 9789811070037).Research output: Chapter in Book/Report/Conference proceeding › Chapter
TY - CHAP
T1 - Designing a Dynamic Ramp with Invariant Inductor in Current-Mode Control Circuit for Buck Converter
AU - Chen, Wen Wei
AU - Chen, Jiann-Fuh
PY - 2018/1/1
Y1 - 2018/1/1
N2 - 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.
AB - 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.
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UR - http://www.scopus.com/inward/citedby.url?scp=85040017834&partnerID=8YFLogxK
U2 - 10.1007/978-981-10-7004-4_3
DO - 10.1007/978-981-10-7004-4_3
M3 - Chapter
AN - SCOPUS:85040017834
T3 - Power Systems
SP - 81
EP - 102
BT - Power Systems
PB - Springer Verlag
ER -