TY - GEN
T1 - Fast response DC/DC converter with transient suppression circuit
AU - Changchien, S. K.
AU - Liang, T. J.
AU - Chen, J. F.
AU - Yang, L. S.
PY - 2006
Y1 - 2006
N2 - This paper presents a novel scheme to improve the transient response of a DC/DC converter. Traditionally, a large output capacitor is used in the output of a DC/DC converter to improve transient response. However, it is costly, heavy and bulky. In this paper, the transient response of DC/DC converter can be improved by adding a coupled inductor and an auxiliary inductor. The proposed circuit configuration is very simple and the capacity of the capacitor can be minimized. A coupled inductor of the converter output filter inductor and a diode form an automatic energy feedback path to improve the full-to-low load transient response. An additional inductor is used to improve the low-to-full load transient response. The operating principle and the design criterion are addressed. Finally, an experimental prototype converter with 12V input voltage and 5V/3A output is given to verify the feasibility of the proposed scheme. Experimental results show that the low-to-full load transient response can be improved by 15% and the full-to-low load transient response is improved by 45%.
AB - This paper presents a novel scheme to improve the transient response of a DC/DC converter. Traditionally, a large output capacitor is used in the output of a DC/DC converter to improve transient response. However, it is costly, heavy and bulky. In this paper, the transient response of DC/DC converter can be improved by adding a coupled inductor and an auxiliary inductor. The proposed circuit configuration is very simple and the capacity of the capacitor can be minimized. A coupled inductor of the converter output filter inductor and a diode form an automatic energy feedback path to improve the full-to-low load transient response. An additional inductor is used to improve the low-to-full load transient response. The operating principle and the design criterion are addressed. Finally, an experimental prototype converter with 12V input voltage and 5V/3A output is given to verify the feasibility of the proposed scheme. Experimental results show that the low-to-full load transient response can be improved by 15% and the full-to-low load transient response is improved by 45%.
UR - http://www.scopus.com/inward/record.url?scp=42449117651&partnerID=8YFLogxK
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U2 - 10.1109/PESC.2006.1711784
DO - 10.1109/PESC.2006.1711784
M3 - Conference contribution
AN - SCOPUS:42449117651
SN - 0780397169
SN - 9780780397163
T3 - PESC Record - IEEE Annual Power Electronics Specialists Conference
BT - 37th IEEE Power Electronics Specialists Conference 2006, PESC'06
T2 - 37th IEEE Power Electronics Specialists Conference 2006, PESC'06
Y2 - 18 June 2006 through 22 June 2006
ER -