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DC-DC converter with continuous-time feed-forward Sigma-Delta modulator control

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14 Author(s)
Hong Gao ; Gunma Univ., Kiryu, Japan ; Lin Xing ; Kobori, Y. ; Feng Zhao
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This paper describes applications of continuous-time feed-forward Sigma-Delta (ΣΔ) modulators to control DC-DC converters as follows. We propose to use continuous-time feed-forward ΣΔ controllers in DC-DC converters, and show that their transient response is faster than discrete-time and/or feedback-type ΣΔ controllers. We also show that second-order ΣΔ controllers have superior performance to first-order ones. SPICE and Matlab simulations substantiate these results.

Published in:

Circuits and Systems (APCCAS), 2012 IEEE Asia Pacific Conference on

Date of Conference:

2-5 Dec. 2012

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