دو قطبي ها-1 مدار 2 پائيز 86 دكتر توحيدخواه.

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Presentation transcript:

دو قطبي ها-1 مدار 2 پائيز 86 دكتر توحيدخواه

يك قطبي 1- جريان ورودي و خروجي مساوي اند 2- از مدار تونن يا نرتن براي مدل مي توان استفاده كرد. 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

دو قطبي 8,114,085 A two-port network is an electrical network with two separate ports for input and output. مدار 2 پائيز 86 دكتر توحيدخواه

Current Driven 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Impedance Parameters مدار 2 پائيز 86 دكتر توحيدخواه

z terms are called the impedance parameters, 8,114,085 z terms are called the impedance parameters, مدار 2 پائيز 86 دكتر توحيدخواه

Impedance Parameters (cont.) z11 and z22 are called driving-point impedances, while z21 and z12 are called transfer impedances. When z11 = z22, the two-port network is said to be symmetrical. When the two-port network is linear and has no dependent sources, the transfer impedances are equal (z12 = z21), and the two-port is said to be reciprocal. 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Impedance Parameter Measurement 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Impedance Parameter Measurement (cont.) 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 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Impedance Parameter Measurement (cont.) 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Reciprocal Two-Port Net 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

General Equivalent Circuit 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

T-equivalent circuit for reciprocal 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Z parameters ?! V1 =1/n V2, I1 = −n I2 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Example 1 Determine the z parameters: 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Example 1 (cont.) 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Example 2 Find I1 and I2 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Example 2 (cont.) 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Example 2 (cont.) مدار 2 پائيز 86 دكتر توحيدخواه

Voltage Driven 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Admittance Parameters مدار 2 پائيز 86 دكتر توحيدخواه

Admittance Parameters 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

short-circuit admittance parameters y11 = Short-circuit input admittance y12 = Short-circuit transfer admittance from port 2 to port 1 y21 = Short-circuit transfer admittance from port 1 to port 2 y22 = Short-circuit output admittance 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Equivalent Circuit 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Pi-equivalent circuit for reciprocal 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Obtain the y parameters Example 3 Obtain the y parameters 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Example 3 (cont.) 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Example 3 (cont.) 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Example 4 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Example 4 (cont.) 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Example 4 (cont.) 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Example 4 (cont.) 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Example 4 (cont.) 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Example 4 (cont.) 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Example 4 (cont.) 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Example 4 (cont.) 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Hybrid Parameters مدار 2 پائيز 86 دكتر توحيدخواه

Hybrid Parameters 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Hybrid Parameters Measurement 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Hybrid Parameters Measurement h11 = Short-circuit input impedance h12 = Open-circuit reverse voltage gain h21 = Short-circuit forward current gain h22 = Open-circuit output admittance 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Equivalent Circuit 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

(inverse hybrid parameters) g parameters (inverse hybrid parameters) 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

g parameters 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

g parameters measurement 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

g parameters measurement g11 = Open-circuit input admittance g12 = Short-circuit reverse current gain g21 = Open-circuit forward voltage gain g22 = Short-circuit output impedance 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Example 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Example (cont.) 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Example (cont.) 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Example (cont.) 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Transmission Parameters مدار 2 پائيز 86 دكتر توحيدخواه

Transmission Parameters 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Transmission Parameters 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Transmission Parameters Measurement 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Transmission Parameters Measurement A = Open-circuit voltage ratio B = Negative short-circuit transfer impedance C = Open-circuit transfer admittance D = Negative short-circuit current ratio 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Inverse Transmission Parameters 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Inverse Transmission Parameters 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Inverse Transmission Parameters a = Open-circuit voltage gain b = Negative short-circuit transfer impedance c = Open-circuit transfer admittance d = Negative short-circuit current gain 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

In Reciprocal Net 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Example 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Example (cont.) 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Example (cont.) 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Example (cont.) 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Example (cont.) 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Example Find RL for maximum power transferred: 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Example (cont.) 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Example (cont.) مدار 2 پائيز 86 دكتر توحيدخواه

Example (cont.) 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Example (cont.) مدار 2 پائيز 86 دكتر توحيدخواه

Summary مدار 2 پائيز 86 دكتر توحيدخواه

8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Relation between Z and Y 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Relation between Z and Y (cont.) 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Relation between Z and h 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

Relation between g and h, t and h 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه

پايان 8,114,085 مدار 2 پائيز 86 دكتر توحيدخواه