新型可實(shí)現(xiàn)寬范圍電壓輸出的變換器分析與仿真

摘要：本文提出一種新型的平方型變換器，該變換器的特點(diǎn)是：（1）轉(zhuǎn)換比等于D2(這里D是占空比)；（2）具有很寬的電壓轉(zhuǎn)換比范圍。因?yàn)樵撟儞Q器可能涉及多個工作模式，所以就涉及到對該變換器的數(shù)學(xué)模型的分析，本文采用了狀態(tài)空間平均模型在各種不同工作模式下對該變換器進(jìn)行了分析。并且用實(shí)驗(yàn)對這些模型的可行性進(jìn)行了驗(yàn)證。 敘詞：平方型變換器 狀態(tài)空間平均模型 小信號頻率響應(yīng) Abstract：A new class of single-transistor quadratic converter is introduced, which features are: (1) voltage conversions ratio equal to D2, where D is the duty cycle; (2) with a wide voltage conversion range .Since this quadratic converter may have multi-mode operations, the mathematical approach to analyze this converter will be very involved. Therefore, state space average approach is used to analyze this quadratic converter under various operation conditions. Validity of these states space average models are verified by experiments. Keyword：quadratic converter states space average model small signal frequency response