By Robert W. Erickson, Dragan Maksimovic
Basics of energy Electronics, moment variation, is an updated and authoritative textual content and reference ebook on energy electronics. This new version keeps the unique goal and philosophy of concentrating on the basic rules, types, and technical standards wanted for designing functional energy digital structures whereas including a wealth of latest material.
This variation comprises many new examples, illustrations, and workouts to lead scholars and execs during the intricacies of energy electronics design.
Fundamentals of strength Electronics, moment variation, is meant to be used in introductory strength electronics classes and comparable fields for either senior undergraduates and first-year graduate scholars drawn to converter circuits and electronics, regulate structures, and magnetic and tool structures. it is going to even be a useful reference for execs operating in strength electronics, strength conversion, and analog and electronic electronics.
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Extra resources for Fundamentals of Power Electronics (2nd Edition)
Example text
3. The principle of inductor volt-second balance allows determination of the dc voltage components in any switching converter. In steady state, the average voltage applied to an inductor must be zero. 4. The principle of capacitor charge balance allows determination of the dc components of the inductor currents in a switching converter. In steady state, the average current applied to a capacitor must be zero. 5. By knowledge of the slopes of the inductor current and capacitor voltage waveforms, the ac switching ripple magnitudes may be computed.
The dc transformer is used to model the ideal functions performed by a dc-dc converter [1–4]. This simple model correctly represents the relationships between the dc voltages and currents of the converter. The model can be refined by including losses, such as semiconductor forward voltage drops and on-resistances, inductor core and copper losses, etc. The resulting model can be directly solved, to find the voltages, currents, losses, and efficiency in the actual nonideal converter. 1 THE DC TRANSFORMER MODEL As illustrated in Fig.
The results were averaged, and the average capacitor current was set to zero. 17) states that the sum of two dc currents are equal to or zero. Hence, Eq. 3 Construction of Equivalent Circuit Model 47 flowing into a node connected to the capacitor. The dc capacitor voltage is V. So now let us construct a circuit containing a node connected to the capacitor, as in Fig. 11, whose node equation satisfies Eq. 17). The second term in Eq. 17) is a current of magnitude V/R, proportional to the dc capacitor voltage V.