A Fast Transient Recovery Module for DCaDC Converters

This paper presents a novel fast transient recovery module to improve the transient response of DC-DC converters to meet the challenging power supply requirement of fast dynamic load changes. The current-pump module operates only at transient state to provide additional current injection and current...

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Bibliographic Details
Published in:IEEE transactions on industrial electronics (1982) 2009-01, Vol.56 (7)
Main Authors: Liu, Pang-Jung, Chiu, Huang-Jen, Lo, Yu-Kang, Chen, Y-JE
Format: Article
Language:English
Subjects:
Converters
Drains
Electric potential
Hysteresis
Modules
Recovery
Switches
Voltage
Online Access:Get full text
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Summary:This paper presents a novel fast transient recovery module to improve the transient response of DC-DC converters to meet the challenging power supply requirement of fast dynamic load changes. The current-pump module operates only at transient state to provide additional current injection and current drain for step-up and step-down loads, respectively. The dual-mode control is proposed to switch the voltage control mode of DC-DC converters to hysteretic control mode during transient. The measurement results show that the fast transient recovery module and dual-mode control can improve the recovery time of DC-DC converters by more than an order.
ISSN:0278-0046
DOI:10.1109/TIE.2009.2017555