Two-Port Networks Equivalent Circuits Chapter 19

19.1 Introduction A two-port Network is an electrical network with two separate ports for input and output. ch19 Two-Port Networks

z Parameters z11 = Open-circuit input impedance z12 = Open-circuit transfer impedance from port 1 to port 2 z21 = Open-circuit transfer impedance from port 2 to port 1 z22 = Open-circuit output impedance ch19 Two-Port Networks

Equivalent Circuit For Reciprocal network only For general ch19 Two-Port Networks

y parameters y11 = Short-circuit input admittance y12 = Short-circuit transfer admittance from port 1 to port 2 y21 = Short-circuit transfer admittance from port 2 to port 1 y22 = Short-circuit output admittance ch19 Two-Port Networks

Fig 19.13 For Reciprocal network only For general ch19 Two-Port Networks

h parameters h11 = Short-circuit input impedance h12 = Open-circuit reverse voltage gain h21 = Short-circuit forward current gain h22 = Open-circuit output admittance ch19 Two-Port Networks

Fig 19.20 ch19 Two-Port Networks

19.6 Relationships Between Parameters ch19 Two-Port Networks

19.7 Interconnection of Networks ch19 Two-Port Networks

Example 19.12 Evaluate V2/V1 in the circuit in Fig. 19.42. ch19 Two-Port Networks

Example 19.12 ch19 Two-Port Networks

Example 19.12 ch19 Two-Port Networks

Example 19.13 Find the y parameters of the two-port in Fig. 19.44. ch19 Two-Port Networks

Example 19.14 Find the transmission parameters for the circuit in Fig. 19.46. ch19 Two-Port Networks