TY - GEN
T1 - Optimal design of lossless passive snubber for DC/DC converters
AU - Huang, Chuan-Kuei
AU - Chen, C. T.
AU - Nien, H. H.
AU - Changchien, S. K.
AU - Shieh, H. W.
PY - 2006/12/1
Y1 - 2006/12/1
N2 -
This paper presents an optimal design of lossless passive snubber for DC/DC converters, which offers an efficient and best design method. The proposed method can not only reduce the spike voltage V
dsp
of a power switch in the circuit, but also raise the conversion efficiency of the converter. In this paper, we have used Taguchi method to create the optimal design of LC lossless snubber. It can overcome the chaotic drawback of trial-and-error method, the bias of one-factor-at-a-time experiments, and the disadvantage of too many trials for full-factorial experiments. In Taguchi method, the voltage V
ds
of power switch and source side current I
in
are the quality characteristics of the circuit, and the snubber inductor L
c
, snubber capacitor C
L
, transformer leakage inductor L
e
, and switching frequency f are control factors which influence the circuit quality characteristics. According to the control factors and levels, this paper used an orthogonal array L
9
(3
4
) to implement experiments, and made a factor response table and graph. Eventually, the optimal values of the control factors L
c
, C
L
, L
e
and f were decided and then increased ratio of S/N to 16.8%. The simulation results demonstrated that the proposed method applying to optimal design of LC lossless snubber circuit was feasible and efficient.
AB -
This paper presents an optimal design of lossless passive snubber for DC/DC converters, which offers an efficient and best design method. The proposed method can not only reduce the spike voltage V
dsp
of a power switch in the circuit, but also raise the conversion efficiency of the converter. In this paper, we have used Taguchi method to create the optimal design of LC lossless snubber. It can overcome the chaotic drawback of trial-and-error method, the bias of one-factor-at-a-time experiments, and the disadvantage of too many trials for full-factorial experiments. In Taguchi method, the voltage V
ds
of power switch and source side current I
in
are the quality characteristics of the circuit, and the snubber inductor L
c
, snubber capacitor C
L
, transformer leakage inductor L
e
, and switching frequency f are control factors which influence the circuit quality characteristics. According to the control factors and levels, this paper used an orthogonal array L
9
(3
4
) to implement experiments, and made a factor response table and graph. Eventually, the optimal values of the control factors L
c
, C
L
, L
e
and f were decided and then increased ratio of S/N to 16.8%. The simulation results demonstrated that the proposed method applying to optimal design of LC lossless snubber circuit was feasible and efficient.
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U2 - 10.1109/ICICIC.2006.126
DO - 10.1109/ICICIC.2006.126
M3 - Conference contribution
AN - SCOPUS:45849124640
SN - 0769526160
SN - 9780769526164
T3 - First International Conference on Innovative Computing, Information and Control 2006, ICICIC'06
SP - 599
EP - 602
BT - First International Conference on Innovative Computing, Information and Control 2006, ICICIC'06
T2 - 1st International Conference on Innovative Computing, Information and Control 2006, ICICIC'06
Y2 - 30 August 2006 through 1 September 2006
ER -