Abstract:
A general small-signal model for current-programmed switching power stages is used for design-oriented analysis of a 150 W buck regulator and a 280 W boost regulator. The...Show MoreMetadata
Abstract:
A general small-signal model for current-programmed switching power stages is used for design-oriented analysis of a 150 W buck regulator and a 280 W boost 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.<>
Published in: IEEE Transactions on Power Electronics ( Volume: 4, Issue: 1, January 1989)
DOI: 10.1109/63.21871
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1.
C. W. Deisch, "Simple switching control method changes power converter into a current source", IEEE Power Electronics Specialists Conf. Rec., pp. 300-306, 1978.
2.
A. Capel, G. Ferrante, D. OSullivan and A. Weinberg, " Application of the injected current model for the dynamic analysis of switching regulators with the new concept of LC 3 modulator ", IEEE Power Electronics Specialists Conf. Rec., pp. 135-147, 1978.
3.
S.-P. Hsu, A. Brown, L. Rensink and R. D. Middlebrook, "Modelling and analysis of switching dc-to-dc converters in constant-frequency current-programmed mode", IEEE Power Electronics Specialists Conf. Rec., pp. 284-301, 1979.
4.
D. M. Mitchell, "An analytical investigation of current-injected control for constant-frequency switching regulators", IEEE Power Electronics Specialists Conf. Rec. Proc. ESA Sessions, pp. 225-233, 1985.
5.
B. H. Cho and F. C. Lee, "Measurement of loop gain with the digital modulator", IEEE Power Electronics Specialists Conf. Rec., pp. 363-373, 1984.
6.
R. D. Middlebrook, "Topics in multiple-loop regulators and current-mode programming", IEEE Power Electronics Specialists Conf. Rec., pp. 716-732, 1985.
7.
G. K. Schoneman and D. M. Mitchell, "Closed-loop performance comparisons of switching regulators with current injected control", IEEE Power Electronics Specialists Conf. Rec., pp. 3-12, 1986.
8.
R. D. Middlebrook and S. Cuk, "A general unified approach to modeling switching converter power stages", IEEE Power Electronics Specialists Conf. Rec., pp. 18-34, 1976.
10.
S. Cuk and R. D. Middlebrook, "A general unified approach to modeling switching dc-to-dc converters in discontinuous conduction mode", IEEE Power Electronics Specialists Conf. Rec., pp. 36-57, 1977.
11.
R. B. Ridley, B. H. Cho and F. C. Lee, "Analysis and interpretation of loop gain measurements of multi-loop controlled switching regulators", Proc. Power Electronics Show Conf., pp. 294-302, 1986.
