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Modelling a current-programmed buck regulator

Middlebrook, R. D. (1987) Modelling a current-programmed buck regulator. In: 1987 IEEE Applied Power Electronics Conference and Exposition. IEEE , Piscataway, NJ, pp. 3-13.

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A general small-signal model for current-programmed switching power stages is used for design-oriented analysis of a 150W buck regulator. The model, into which the current-programming minor feedback loop is absorbed, exposes the desired tendency towards "constant" output current. The regulator voltage loop remains the only explicit feedback loop, allowing the regulator closed-loop properties to be easily obtained from those of the open-loop current-programmed power stage. The design-oriented analytic results allow easy inference of the effects of element changes on the regulator performance functions. Results are obtained for the regulator line-to-output transfer function (audio susceptibility) and output impedance.

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Additional Information:© 1987 IEEE. This work was conducted in part under the Power Electronics Program supported by a grant from GTE Communication Systems Corp., and under a contract from IBM Tucson.
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GTE Communication Systems Corp.UNSPECIFIED
Record Number:CaltechAUTHORS:20150624-110102782
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Official Citation:Middlebrook, R.D., "Modelling a current-programmed buck regulator," Applied Power Electronics Conference and Exposition, 1987 IEEE , vol., no., pp.3,13, 2-6 March 1987 doi: 10.1109/APEC.1987.7067125 URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:58582
Deposited By: Tony Diaz
Deposited On:24 Jun 2015 18:11
Last Modified:10 Nov 2021 22:07

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