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ECE312_lec05
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Ahmad El-Banna
November 05, 2014
Education
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470
ECE312_lec05
3rd Year, Faculty of Eng. at Shoubra
lec#5, Electronic Circuits (A)
Ahmad El-Banna
November 05, 2014
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Transcript
Lecture # 5 Hybrid Equivalent Model Instructor: Dr. Ahmad El-Banna
Benha University Faculty of Engineering at Shoubra November 2014 ECE-312 Electronic Circuits (A) © Ahmad El-Banna
Agenda Two-Port Systems Approach Cascaded Systems The Hybrid Equivalent Model
Approximate & Complete h-model Hybrid π Model Troubleshooting and Practical Applications 2 © Ahmad El-Banna ECE-312 , Lec#5 , Nov 2014
TWO PORT SYSTEMS APPROACH 3 © Ahmad El-Banna ECE-312 ,
Lec#5 , Nov 2014
2-Port System 4 ECE-312 , Lec#5 , Nov 2014 ©
Ahmad El-Banna
2-Port System.. 5 ECE-312 , Lec#5 , Nov 2014 ©
Ahmad El-Banna
CASCADED SYSTEMS 6 ECE-312 , Lec#5 , Nov 2014 ©
Ahmad El-Banna
Cascaded Systems 7 ECE-312 , Lec#5 , Nov 2014 ©
Ahmad El-Banna • Examples: RC Coupled ct & Cascode ct • Check Examples: 5.15 & 5.16
THE HYBRID EQUIVALENT MODEL 8 ECE-312 , Lec#5 , Nov
2014 © Ahmad El-Banna
The Hybrid Equivalent Model 9 ECE-312 , Lec#5 , Nov
2014 © Ahmad El-Banna • The re model has the advantage that the parameters are defined by the actual operating conditions, • the parameters of the hybrid equivalent circuit are defined in general terms for any operating conditions. short-circuit forward transfer current ratio parameter short-circuit forward transfer current ratio parameter open-circuit reverse transfer voltage ratio parameter short-circuit input-impedance parameter
Transistor Hybrid Equivalent ct 10 ECE-312 , Lec#5 , Nov
2014 © Ahmad El-Banna • For Transistor:
Hybrid vs. r e model 11 ECE-312 , Lec#5 ,
Nov 2014 © Ahmad El-Banna
APPROXIMATE & COMPLETE H-MODEL 12 ECE-312 , Lec#5 , Nov
2014 © Ahmad El-Banna
Approximate h-model 13 ECE-312 , Lec#5 , Nov 2014 ©
Ahmad El-Banna • Fixed Bias ct • Check other configurations !!
Complete h-model 14 ECE-312 , Lec#5 , Nov 2014 ©
Ahmad El-Banna