(8.1.9)--chapter2 Diode Applications模拟电子技术基础.ppt
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(8.1.9)--chapter2 Diode Applications模拟电子技术基础.ppt
Chapter 2Diode Applications Outline Equivalent model analysis AND/OR GatesHalf-Vave RectificationFull-Wave RectificationVoltage regulator Limiter0.7V+0.7V-+0.7V-IDIDapproximate semiconductor diode modelID=02.1 Equivalent Model Analysis0.7V+0V-+0 V-IDIDidealideal semiconductor diode modelID=0Equivalent Model AnalysisDetermine the State of DiodeSeries diode configurationSiID0.7Determine the State of DiodeDetermine the State of Diode 2.2 And/OR GatesPositive logic OR gateDetermine Vo for the Network of the FigureDetermine the Output Level for the Positive Loagic and Gate 2.3 Half-wave RectificationDuring the interval 0 T/2Using ideal modelUsing Ideal ModelFor the period T/2 TUsing Ideal ModelHalf-wave Rectified SignalUsing Approximate Model2.4 Full-Wave RectificationUsing ideal modelUsing ideal model for the period 0 T/2 of the input voltage vi.Using Ideal Model for the period 0 T/2 of the input voltage vi.Using Ideal Model for the period 0 T/2 Using Ideal Model Using Ideal Model for the period T/2 TInput and Output Waveforms for a Full-wave Rectifier.Using Approximate Model 2.5 Voltage RegulatorWe define:Peak RectifierVoltage and current waveforms in the peak rectifier circuit with .The diode is assumed ideal.2.6 LimiterApplying a sine wave to a limiter can result in clipping off its two peaks.Limiter Soft Limiting
