ESE 372: Electronics Spring 2013 Web site: www.ece.sunysb.edu/~oe/leon.html visit website regularly for updates and announcements Prerequisite: ESE 271 Corequisites: ESE 211 Text Books: A.S. Sedra, K.C. Smith, Microelectronic Circuits, sixth addition (2010), Oxford, ISBN 978-0-19-532303-0 Instructor: Leon Shterengas (631-632-9376, leon@ece.sunysb.edu); Office hours: TU,TH TH 10-12am, 12am Light Engineering Bldg. 143 Teacher assistants: see website for updates Grading: Homeworks - 40%, Exams - 60% Any questions regarding the grading must be resolved within one week after grading gwas done.
ESE 372: Electronics Spring 2013 Course Description: The course reviews the basic electronic concepts including analog and digital signals, rectifiers and wave shaping circuits, small-signal and large-signal g analysis of amplifiers, amplifier frequency response, feedback, etc. Short introduction to basics of semiconductor devices is given including junction diodes, bipolar transistors, and field effect transistors. The popular circuits using semiconductor devices are studied in details. The course is designed to provide the necessary theoretical support for lab courses like, for example, ESE 211 and ESE 314. Class notes and hw assignments can be downloaded from www.ece.sunysb.edu/~oe/leon.html. Lectures: M/W 4.00-5.20pm ESS B131 Recitations: R01 TU(43) 4.00-5.20pm SBU 231 R02 TH(29) 1.00 2.20pm Chemistry 123
ESE 372: Electronics Spring 2013: Schedule Week 01 Jan. 28 L01. Introduction. ti Voltage Amplifiers. Amplifier bandwidth. Jan. 30 L02. Operational Amplifiers. Negative feedback. Week 02 Feb. 4 L03. Gain-bandwidth product. Op.Amp. nonidealities. Feb. 6 L04. Metals, isolators and semiconductors. Intrinsic and doped semiconductors. Week 03 Feb. 11 L05. Electric current in semiconductors. HW1 due Feb. 13 L06. Schottky diode. Pn-junction diode. Week 04 Feb. 18 L07. Zener diodes. Circuits with diodes. Feb. 20 L08. Half wave rectifiers. Filtering capacitor. Week 05 Feb. 25 L09. Full wave rectifier circuits. HW2 due Feb. 27 Midterm exam 1. Week 06 Mar. 4 L10. Operation of Bipolar Junction Transistor. Mar. 6 L11. BJT input/output characteristics. Week 07 Mar. 11 L12. BJT modes of operation. Ebers-Moll model. Early effect. HW3 due Mar. 13 L13. Bias of BJTs. BJT small signal parameters. Week 08 Mar. 18 Spring break Mar. 20 Spring break Week 09 Mar. 25 L14. Common emitter amplifier. HW4 due Mar. 27 L15. Common collector and common base amplifiers. Week 10 Apr. 1 L16. Frequency response of BJT. Apr. 3 L17. Frequency response of CE and CB discrete BJT amplifiers. HW5 due Week 11 Apr. 8 Midterm exam 2. Apr. 10 L18. Metal-Oxide-Semiconductor capacitor. Week 12 Apr. 15 L19. Operation of Metal Oxide Semiconductor Field Effect Transistor. Apr. 17 L20. MOSFET input/output characteristics. Week 13 Apr. 22 L21. MOSFET gain. Bias of MOSFETs. MOSFET current mirror. HW6 due Apr. 24 L22. MOSFET small signal parameters. Body effect. Week 14 Apr. 29 L23. MOSFET Common Source amplifier. May. 1 L24. MOSFET CG and CD amplifiers. Week 15 May. 6 L25. Frequency response of CS amplifier. May. 8 L26. Material review. HW7 due Finals May. 11-22 Final exam
Introduction Generates electrical signal Sensor, receiver, etc. Signal conditioning and transformation Generates action Transducer, monitor, etc. We will learn about DC power supplies and operation of the transistor based amplifiers 1
Review of basic concepts Voltage characterizes the potential energy Current characterizes the rate of charge transfer Energy Power 2
Linear Voltage Amplifiers (single ended) Input signal power: Output signal power: Power taken from power supplies: Voltage gain Linear means that A V does not depend on amplitude of V in Power supplies Efficiency: 3
Amplifier gains 4
Model of power supply Low frequency model of the DC power supply with limited power capabilities. Thevenin form. Open circuit voltage Short circuit current Thevenin form. Norton form. 5
Thevenin equivalent 6
Example 7
Voltage Transfer Characteristics Circuit would act as a linear amplifier for a limited it range of the amplitudes of input signals When amplitude of the input signal: Amplitude of the signal is changed * Phase can be changed as well but let s forget about it for now. 8
Voltage Transfer Characteristics More complicated shape of VTC Here output is not linear function of input Need DC bias!!! 9
Bias Differential voltage gain Now, in biased amplifier the output signal amplitude is linear function of input amplitude as long as input is kept within certain range. 10
Amplifier equivalent circuit for signals For time variable signals: DC voltage = zero signal voltage = short circuit DC current = zero signal current = open circuit Output impedance of biased amplifier Input impedance of biased amplifier Voltage controlled voltage source - Open circuit voltage gain 11
Net voltage gain from signal to load Example: Why do we need voltage buffers? 12
Amplifier Frequency Bandwidth Example: 13
Amplifier Frequency Bandwidth: Example Thevenin transformation 14
RC low pass filter Magnitude response Phase response 15
Amplifier Frequency Bandwidth: Example 16