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首页> 外文期刊>Journal of circuits, systems and computers >Design and Analysis of High-Gain Switched-Capacitor-Inductor-Based Inverter for Step-Up DC-AC Conversion
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Design and Analysis of High-Gain Switched-Capacitor-Inductor-Based Inverter for Step-Up DC-AC Conversion

机译：基于高增益开关电容电感的升压型DC-AC变换的设计与分析

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摘要

This paper presents the analysis, design and implementation of a closed-loop high-gain switched-capacitor-inductor-based inverter (SCII) by combining a sinusoidal pulse-width-modulation (SPWM) controller and phase generator for realizing the step-up inversion and regulation. The power part is composed of two cascaded sub-circuits from source VS to output voltage V-o: (i) SCI booster (one resonant inductor, 4 pumping capacitors and 7 switches regulated by phase generator) and (ii) DC-link inverter (one filter capacitor and 4 switches controlled by SPWM), in order to provide a wide step-up output range of V-o as: -4V(S)/(1 - D-o) similar to +4V(S)/(1 - D-o) for DC-AC conversion, where D-o (0 < D-o < 1) is the ratio cycle of charging the inductor (e. g., the maximum of V-o reaches 13.8 times voltage of V-S while D-o = 0.71). Here, by using the phase generator, the maximum of step-up gain can be regulated for fitting the need of AC load. Further, the SPWM controller is employed to enhance regulation capability for the di r erent amplitude and frequency of output, as well as robustness to loading variation. Some theoretical analysis and design are included: formulation, steady-state analysis, conversion ratio, power efficiency, inductance and capacitance selection, circuit stability and control design. Finally, the performance of SCII is simulated, and verified experimentally on the implemented prototype circuit, and the results are illustrated to show the efficacy of this scheme.
机译：本文结合正弦脉冲宽度调制（SPWM）控制器和相位发生器来实现升压，对闭环高增益开关电容电感式逆变器（SCII）进行了分析，设计和实现。倒置和调节。电源部分由从电源VS到输出电压Vo的两个级联子电路组成：（i）SCI升压器（一个谐振电感器，4个抽运电容器和7个由相发生器调节的开关）和（ii）直流母线逆变器（一个滤波电容器和由SPWM控制的4个开关），以便提供宽的升压输出范围Vo ::-4V（S）/（1-Do）类似于+ 4V（S）/（1-Do） DC-AC转换，其中Do（0

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