Download Advanced DC/DC converters by Luo, Fang Lin; Ye, Hong PDF

By Luo, Fang Lin; Ye, Hong

DC/DC conversion recommendations have gone through fast improvement in contemporary a long time. With the pioneering paintings of authors Fang Lin Luo and Hong Ye, DC/DC converters have now been looked after into their six generations, and through a coarse count number, over 800 diverse topologies presently exist, with extra being built every year. Advanced DC/DC Converters, moment Edition bargains a concise, functional presentation of DC/DC converters, summarizes the spectrum of conversion applied sciences, and offers new principles and greater than 2 hundred new topologies. starting with heritage fabric on DC/DC conversion, the publication later discusses either voltage carry and super-lift converters. It then proceeds via every one new release, together with the groundbreaking 6th generation―converters built through the authors that may be cascaded for prime voltage move gain.

This re-creation updates each bankruptcy and gives 3 new chapters. The advent of the super-lift process is an exceptional success in DC/DC conversion expertise, and the ultra-lift method and hybrid split-capacitor/inductor utilized in Super-Lift Luo-Converters are brought in Chapters 7 and eight. In bankruptcy nine, the authors have theoretically outlined a brand new idea, power issue (EF), researched the kin among EF and the mathematical modelling for energy DC/DC converters, and proven the modeling procedure for 2 converters. greater than 320 figures, 60 tables, and 500 formulae permit the reader to extra simply snatch the general constitution of complicated DC/DC converters, supply quick entry to express facts, and aid them to quick confirm the values in their personal circuit parts.

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25c. 25 Positive buck and boost converter: (a) circuit diagram; (b) buck operation (S 2 open, D2 conducted); and (c) boost operation (S 1 on, D1 blocked). 2 Transformer-Type Converters Since all fundamental DC/DC converters keep the linkage from the input side to the output side and the voltage transfer gain is comparably low, transformer-type converters were developed in the 1960s through the 1980s. These are a large number of converters such as forward converter, push-pull converter, flyback converter, half-bridge converter, bridge converter, and Zeta (or ZETA) converter.

This characteristic is very important for large power conversion. At the present time, large power conversion equipment is close to using switched-inductor converters. For example, the MIT DC/DC converter designed by Prof. John G. Kassakian for his new system in the 2005 automobiles is a two-quadrant switchedinductor DC/DC converter. These circuits will be introduced in Chapter 11 in detail. 4 Fourth-Generation Converters The fourth-generation DC/DC converters are called soft-switching converters.

10 Positive Luo-pump. 11 Negative Luo-pump. 12 Cúk pump. 3 Transformer-Type Pumps Transformer-type pumps are developed from corresponding transformer-type DC/DC converters: Forward pump Flyback pump ZETA pump All transformer-type pumps consist of a switch S, a transformer with the turns ratio N, and other components such as diode D (one or more) and capacitor C. 13. Switch S and diode D1 are synchronously on and off, and diode D2 is alternatively off and on. Usually, the forward pump works in discontinuous operation mode; input current is discontinuous in this case.

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