EE 230 Lecture 27 Spring 2010

EE 230 Lecture 27 Spring 2010 - EE 230 Lecture 27 Nonlinear...

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EE 230 Lecture 27 Nonlinear Circuits and Nonlinear Devices Diode BJT MOSFET
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Review from Last Time: R 2 R 1 V OUT Noninverting Amplifier R R C C RC Feedback Network Wein-Bridge Oscillator OSC 1 ω RC 2 1 13 o R K R Nonlinearity of Noninverting Amplifier Limits Amplitude of V OUT and when saturation occurs, will cause distortion
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Review from Last Time: R 2 R 1 V OUT Noninverting Amplifier R R C C RC Feedback Network Wein-Bridge Oscillator 2 1 13 o R K R Nonlinearity of Noninverting Amplifier V OUT V IN V SATH V SATL Gain (slope)=3+ε
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Review from Last Time: Amplifiers with less abrupt change in slope will reduce distortion V OUT V IN V SATH V SATL Gain (slope)=3
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Review from Last Time: R 2 R 3 R 1 V IN V OUT Amplifiers with less abrupt change in slope V OUT V IN V SATH V SATL Gain (slope)=3 21 IN γ IN γ 13 2 1 1 OUT IN γ IN γ 1 3 3 IN γ IN γ RR 1+ V +V V V R R R V = 1+ V - V <V < V R R R 1+ V -V V V
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Review from Last Time: V OUT Noninverting Amplifier R R C C RC Feedback Network R 2 R 3 R 1 Wein-Bridge Oscillator with Low Distortion Amplitude Limiting
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Observation: Nonlinear Devices Have Provided Very Useful Performance Capabilities Not Obtainable with Linear Circuits I D V D V IN V OUT I D V D V XX
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The Electronics World as We See It Until Now Resistive Networks Amplifiers (Dependent Sources) Passive Filters (RLC Networks) Active Filters Waveform Generators Sensor Interfaces Analog to Digital Converters (ADC) Digital to Analog Converters (DAC) Linear Circuits Nonlinear Device A C I X V X Nonlinear Circuits Comparators Nonlinear Amplifiers
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The Electronics World as We See It Until Now Resistive Networks Amplifiers (Dependent Sources) Passive Filters (RLC Networks) Active Filters Waveform Generators Sensor Interfaces Analog to Digital Converters (ADC) Digital to Analog Converters (DAC) Linear Circuits Nonlinear Device A C I X V X Nonlinear Circuits Comparators Nonlinear Amplifiers Undesired Nonlinear Behavior
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The Electronics World as We See It Until Now Perception: Most of the Electronics World Is Linear A few Useful Nonlinear Applications Nonlinear Analysis is Hard
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The Real Electronics World Resistive Networks Passive Filters (RLC Networks) Waveform Generators Linear Circuits V GS V DS I D I G Nonlinear Device D S S G Nonlinear Device A C I X V X Nonlinear Circuits
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EE 230 Lecture 27 Spring 2010 - EE 230 Lecture 27 Nonlinear...

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