tailieunhanh - Circuits & Electronics P8

Dependent Sources and Amplifiers – Fall 2002: Lecture 8 1 .Review Nonlinear circuits — can use the node method Small signal trick resulted in linear response Today Dependent sources Amplifiers Reading: Chapter , – Fall 2002: Lecture 8 2 .Dependent sources Seen previously Resistor Independent Current source + i + i v – R v – I v i= R i=I 2-terminal 1-port devices New type of device: Dependent source iI i O + control port vI f ( vI ) + vO – 2-port device output port – ., Voltage Controlled Current Source Current at output port is a function of voltage at the input port – Fall 2002: Lecture 8 3 .Dependent Sources: Examples Example 1: Find V + R V – independent current source I. | CIRCUITS AND ELECTRONICS Dependent Sources and Amplifiers - Fall 2002 Lecture 8 1 Review Nonlinear circuits can use the node method Small signal trick resulted in linear response Today Dependent sources Amplifiers Reading Chapter - Fall 2002 Lecture 8 2 Dependent sources Seen previously Resistor Independent Current source v v T 1 R 1 R R v - -r i I 2-terminal 1-port devices New type of device Dependent source control port output port 2-port device . Voltage Controlled Current Source Current at output port is a function of voltage at the input port - Fall 2002 Lecture 8