臨界連續導通模式主動式功率因素修正器之非線性動態特性研究

Abstract

本論文採用在一般商用使用的十分廣泛之MC-33262 功因控制器IC，製作升壓型邊界連續電流導通模式功率因素修正器控制電路，來研究系統的非線性動態。當系統元件之參數發生改變，我們可以觀察到輸出電壓的一連串分叉現象。這些非線性現象包括一連串的多重的雙週期分叉，還有三週期分叉跟混沌行為，這些現象跟 Monhamed(2003)所發表的結果符合。即使這兩個研究結果非常近似，還是有一些不同點，主要的相異點為我們使用常見的商用晶片來進行實驗，可是之前的作法則使用自己設計的電路。

In this thesis, we study the nonlinear dynamics of active power factor correction (PFC) circuit via experimental approach, This is achieved by using an off-the-shelf commercial PFC chip IC MC-33262 under the operation of continuous conduction mode. A series of bifurcation scenario were observed in the output voltage while changing the values of circuit components. Those nonlinear phenomena include a series of multiple period-doubling bifurcation, period-tripling bifurcation and chaotic behavior, which agree with some findings presented by Monhamed(2003). Although the results of two studies are vary similar, there exists some differences between the two researches. The major one of the differences is that this study uses a popular commercial chip for experimental study but the other employs a self designed circuit.