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[电路理论总复习资料~~~
谐振小结 串联谐振(电压谐振) 并联谐振(电流谐振) 电压与电流同相位,?=0,cos ?=1 ,当?0L》R 阻抗Z最小:Z=R; 导纳Y 最小: 电路电流最大(U不变); 电路电流最小(U不变) 能量互换只发生在电感和电容之间 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 1.耦合电感的串联等效 L=L1+L2+2M 其中等效电感: (1)顺接 去耦 第7章 耦合电路 去耦法:受控源法与等效电路图法 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 其中等效电感:L=L1+L2-2M (2)反接 去耦 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 同、异侧并联电路的等效电感: 去耦 去耦 注:等效电感与电流参考方向无关。 第7章 耦合电路 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 第7章 耦合电路 去耦 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 去耦 其伏安关系为: 第7章 耦合电路 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 去耦 图7-16 空芯变压器电路 原边输入阻抗Zi 原边自阻抗Z11 反映阻抗Zref (a) (b) 反映阻抗体现了由于耦合,副边对原边的影响。Zref的性质与Z22相反,即感性(容性)变为容性(感性)。 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Prof
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