Improved transient response using HFFC in current-mode CFCOT control for Buck converter

In this paper, improved transient response using high-frequency feedback control (HFFC) in current-mode constant frequency constant on-time (CFCOT) control for Buck converter is proposed. The concept uses HFFC to filter out the V out at the load transient to dynamically change the width of on-time t...

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Bibliographic Details
Main Authors: Wen-Wei Chen, Jiann-Fuh Chen, Tsorng-Juu Liang, Jian-Rong Huang, Wei-Yuan Ting
Format: Conference Proceeding
Language:English
Subjects:
Capacitors
Oscillators
Power electronics
Resistors
Transient analysis
Transient response
Voltage control
Online Access:Request full text
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Description
Summary:In this paper, improved transient response using high-frequency feedback control (HFFC) in current-mode constant frequency constant on-time (CFCOT) control for Buck converter is proposed. The concept uses HFFC to filter out the V out at the load transient to dynamically change the width of on-time to prevent the V out from dropping markedly. Finally, HFFC is implemented using the experimental results and SIMPLIS simulation results to verify its viability and superiority.
ISSN:2164-5256
DOI:10.1109/PEDS.2013.6527079