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Switching converters with wide DC conversion range

Maksimović, Dragan and Ćuk, Slobodan (1991) Switching converters with wide DC conversion range. IEEE Transactions on Power Electronics, 6 (1). pp. 151-157. ISSN 0885-8993. doi:10.1109/63.65013.

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In dc-to-dc conversion applications that require a large range of input and/or output voltages, conventional PWM converter topologies must operate at extremely low duty ratios, which limits the operation to lower switching frequencies because of the minimum ON-time of the transistor switch. This is eliminated in a new class of single-transistor PWM converters featuring voltage conversion ratios with quadratic dependence on duty ratio. Practical circuit examples operating at 0.5 MHz are described.

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Additional Information:© Copyright 1991 IEEE. Reprinted with permission. Manuscript received September 20, 1989. This paper was presented at the 1989 High Frequency Power Conversion Conference, Naples FL, May 14-18. This work was conducted under the Power Electronics Program supported by grants from Boeing Electronics Company, GTE Communication Systems Corporation, Rockwell Inc., and EG&G Almond Instruments Inc. The assistance is gratefully acknowledged of Tiger Tejpal Singh and Branislav Kecman, graduate students at California Institute of Technology and members of the Power Electronics Group, for the help in constructing the experimental circuits and producing the experimental results in Sections IV and V.
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Deposited On:20 Dec 2006
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