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B003664 - PRINCIPLE OF ELECTRONICS
Main information
Teaching Language
Course Content
Suggested readings
Prerequisites
Teaching Methods
Course program
Academic Year 2018-19
Coorte 2017 - 3-years First Cycle Degree (DM 270/04) in Electronics and Telecommunications Engineering
Course year
Second year - First Semester
Belonging Department
Information Engineering (DINFO)
Course Type
Single education field course
Scientific Area
ING-INF/01 - ELECTRONIC ENGINEERING
Credits
6
Teaching Hours
54
Teaching Term
17/09/2018 ⇒ 21/12/2018
Attendance required
No
Type of Evaluation
Final Grade
Course Content
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Course program
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Lectureship
Teaching Language
Italian
Course Content
Semiconductors; pn junction; FET; BJT; linear amplifiers; introduction to digital electronics.
Suggested readings (Search our library's catalogue)
M. Pieraccini "Fondamenti di Elettronica", 2014, Pearson alternatively
M. Pieraccini "Microelettronica", 2015, Pearson
For lab: Yannis Tsividias, FIRST LAB IN CIRCUITS AND ELECTRONICS, OXFORD UNIVERSITY PRESS, 2018
M. Pieraccini "Microelettronica", 2015, Pearson
For lab: Yannis Tsividias, FIRST LAB IN CIRCUITS AND ELECTRONICS, OXFORD UNIVERSITY PRESS, 2018
Prerequisites
Basic Physics (electric charge, current, electrostatics, electrodynamics) Theory of Circuits (Analysis of linear circuits)
Teaching Methods
1) lessons on the blackboard (no slides) 2) exercices in classroom 3) CAD software
4) laboratory exercitations
4) laboratory exercitations
Course program
1) PHYSICS OF SEMICONDUCTORS
Ohm's law. Insulators and conductors. Semiconductors. Electrons in semiconductors. Gaps. Tunnel effect. Wave-particle duality. Intrinsic silicon. Silicon doped with n-type impurities. Silicon doped with p-type impurities. Law of mass action. Diffusion current. Built-in potential. Fermi energy. Silicon technology. Exercises.
2) THE PN JUNCTION
Realisation of a a pn junction. Diode. Depletion region. Band model. Metal- semiconductor junction. The pn diode complete. Principle of operation of a diode. Carrier concentration at the edge of the depletion region. Charge injection and recombination. Current diffusion and drift in the diode. The Zener diode.
3) THE EFFECT TRANSISTOR FIELD
The transistor. Types of field effect transistor. The MOS capacitor. N-channel enrichment MOSFET. N- channel MOSFET for large voltages. Cut-off of the MOSFET. Channel modulation. N-channel enrichment MOSFET with resistive load. MOSFET as a voltage amplifier. Polarization of the n-channel Enrichment MOSFET. Bias network with source resistance. Bias with current generator. Current mirror. Bias network with gate resistance. MOSFET in saturation as active load. Depletion MOSFET. Bias network of a depletion MOSFET. Depletion MOSFET as active load. Enrichment P-channel MOSFET. 4-terminals MOSFET. Body effect. JFET. Derivation of the characteristic of the JFET.
4) THE BIPOLAR TRANSISTOR
The BJT. Physical implementation of the BJT. Operation regions. Forward active region. Reverse active region. Interdiction. Saturation. Output characteristic of the BJT. Early effect. The BJT PNP. The BJT as switch. The BJT as a voltage amplifier. Polarization of the BJT. 4-resistors bias network. Polarization of the BJT by current generator. Current mirror. BJT vs. FET.
5) LINEAR AMPLIFIERS
Linear amplifiers. Superposition Principle and non-linearity. Linearized model of the FET with 3 terminals. Linearized model of the FET with 4- terminal. The three configurations of the MOSFET. Linearized model of the BJT. Resistances seen from the three terminals of the BJT. The three configurations of the BJT. Analysis and design. Analysis of a voltage amplifier in single MOSFET in configuration CS. Design of voltage amplifier with a single MOSFET in CS configuration. Design of a voltage buffer with a single MOSFET in CD configuration.
6) FREQUENCY RESPONSE OF LINEAR AMPLIFIERS
Frequency response of amplifiers. Frequency response of linear networks. Frequency response of a CS amplifier at low frequencies. General rule for the estimation of the cut-off frequency lower. Amplifiers at high frequencies. Capacity between gate and source in the MOSFET in saturation. Response of a CS amplifier at high frequency. Model of the MOSFET at high frequency. Parasitic capacitances of the BJT. Model of the BJT high frequency. General rule for estimating the higher cutoff frequency.
Ohm's law. Insulators and conductors. Semiconductors. Electrons in semiconductors. Gaps. Tunnel effect. Wave-particle duality. Intrinsic silicon. Silicon doped with n-type impurities. Silicon doped with p-type impurities. Law of mass action. Diffusion current. Built-in potential. Fermi energy. Silicon technology. Exercises.
2) THE PN JUNCTION
Realisation of a a pn junction. Diode. Depletion region. Band model. Metal- semiconductor junction. The pn diode complete. Principle of operation of a diode. Carrier concentration at the edge of the depletion region. Charge injection and recombination. Current diffusion and drift in the diode. The Zener diode.
3) THE EFFECT TRANSISTOR FIELD
The transistor. Types of field effect transistor. The MOS capacitor. N-channel enrichment MOSFET. N- channel MOSFET for large voltages. Cut-off of the MOSFET. Channel modulation. N-channel enrichment MOSFET with resistive load. MOSFET as a voltage amplifier. Polarization of the n-channel Enrichment MOSFET. Bias network with source resistance. Bias with current generator. Current mirror. Bias network with gate resistance. MOSFET in saturation as active load. Depletion MOSFET. Bias network of a depletion MOSFET. Depletion MOSFET as active load. Enrichment P-channel MOSFET. 4-terminals MOSFET. Body effect. JFET. Derivation of the characteristic of the JFET.
4) THE BIPOLAR TRANSISTOR
The BJT. Physical implementation of the BJT. Operation regions. Forward active region. Reverse active region. Interdiction. Saturation. Output characteristic of the BJT. Early effect. The BJT PNP. The BJT as switch. The BJT as a voltage amplifier. Polarization of the BJT. 4-resistors bias network. Polarization of the BJT by current generator. Current mirror. BJT vs. FET.
5) LINEAR AMPLIFIERS
Linear amplifiers. Superposition Principle and non-linearity. Linearized model of the FET with 3 terminals. Linearized model of the FET with 4- terminal. The three configurations of the MOSFET. Linearized model of the BJT. Resistances seen from the three terminals of the BJT. The three configurations of the BJT. Analysis and design. Analysis of a voltage amplifier in single MOSFET in configuration CS. Design of voltage amplifier with a single MOSFET in CS configuration. Design of a voltage buffer with a single MOSFET in CD configuration.
6) FREQUENCY RESPONSE OF LINEAR AMPLIFIERS
Frequency response of amplifiers. Frequency response of linear networks. Frequency response of a CS amplifier at low frequencies. General rule for the estimation of the cut-off frequency lower. Amplifiers at high frequencies. Capacity between gate and source in the MOSFET in saturation. Response of a CS amplifier at high frequency. Model of the MOSFET at high frequency. Parasitic capacitances of the BJT. Model of the BJT high frequency. General rule for estimating the higher cutoff frequency.