| 中文摘要 |
A multi-stage power CMOS-transmission-gate-based (CMOS-TG)quasi-switchedcapacitor (QSC) boost DC-AC inverter is presented and integrated with boost DC-AC/DC-DC functions for AC power load. Here, by using CMOS-TG as a bi-directional switch, the various topologies can be integrated in the same circuit scheme to achieve two goals: boosting and alternating, i.e., boosting is to step up the peak valve of sinusoid, and alternating is to realize positive/negative half sinusoidal output. In addition, the scheme does not require any inductive elements. For example, it needs no inductor and transformer, so the I.C. fabrication is promising for realization. Besides, both large-signal state-space equation and small-signal transfer function of converter/inverter proposed are derived by state-space averaging technique, and expressed in the same formulation. Based on the formulation, it will be helpful for control design and theoretical analysis later. Finally, a multi-stage QSC boost DC-AC inverter is made in circuit layout by PSPICE tool, and then three cases are simulated and discussed including AC voltage output, output ripple percentage, and power efficiency. The results are illustrated to show the efficacy of the inverter configuration proposed. |
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