High-Efficiency Single-Input Multiple-Output DC–DC Converter

Abstract

The aim of this study is to develop a high-efficiency single-input multiple-output (SIMO) dc-dc converter. The proposed converter can boost the voltage of a low-voltage input power source to a controllable high-voltage dc bus and middle-voltage output terminals. The high-voltage dc bus can take as the main power for a high-voltage dc load or the front terminal of a dc-ac inverter. Moreover, middle-voltage output terminals can supply powers for individual middle-voltage dc loads or for charging auxiliary power sources (e.g., battery modules). In this study, a coupled-inductorbased dc-dc converter scheme utilizes only one power switch with the properties of voltage clamping and soft switching, and the corresponding device specifications are adequately designed. As a result, the objectives of high-efficiency power conversion, high stepup ratio, and various output voltages with different levels can be obtained. Some experimental results via a kilowatt-level prototype are given to verify the effectiveness of the proposed SIMO dc-dc converter in practical applications.Index Terms-Coupled inductor, high-efficiency power conversion, single-input multiple-output (SIMO) converter, soft switching, voltage clamping.

Novel High Step-Up DC/DC Converter Structure Using a Coupled Inductor with Minimal Voltage Stress on the Main Switch

“…By substituting Equations (28), (33), and (34) into Equation (29), the voltage gain is obtained as follows: [24], [25], and [32] in CCM operation under…”

“…( of the proposed converter is compared with that of the converters presented in [24], [25], and [32] in CCM operation under 3 n  and 1 K  . The proposed converter has the highest voltage gain among the compared converters, and this value is much larger than the other voltage gain values for all duty cycles.…”

“…In CCM, the voltage stress on switch 1 S and diodes 1 D , 2 D ,  and 5 D is obtained as follows: Fig. 10 shows a comparison of the voltage stress on the main switch of the proposed converter and that for the presented converters in [24], [25], and [32] in CCM operation under 3 n  . Evidently, the proposed converter has the least voltage in all duty cycles.…”

“…Thus, its voltage is zero. The difference between the experimental efficiencies of the proposed converter and the converters presented in [32], [24], [33], and [34] for different output powers is shown in Fig. 15.…”

Combating Clickjacking using Content Security Policy and Aspect Oriented Programming

“…With two controllable switches, one downside of the two-switch buck-help converter is the genuine misfortunes of the two switches particularly at high exchanging recurrence [2]. In prior investigates, regardless of low-or high-voltage application, synchronous control plan is normally utilized in light of the fact that it can be effortlessly figured it out.…”