Basic Electronics & Introduction to Fiber Optics ( बेसिक इलेक्ट्रॉनिक्स और फाइबर ऑप्टिक्स का परिचय )

Units

(bdkÃ)

Part-B

Basic Electronics & Introduction to Fiber Optics (ewyHkwr bysDVª‚fuDl rFkk Qkbcj v‚fIVDl dk ifjp;)

No. of Lectures

(O;k[;kuks dh la[;k)

I

Transistor Biasing(VªkaftLVj vfHkufr)

Faithful amplification & need for biasing. Stability Factors and its calculation for transistor biasing circuits for CE configuration: Fixed Bias (Base Resistor Method), Emitter Bias (Fixed Bias with Emitter Resistor), Collector to Base Bias (Base Bias with Collector Feedback) &, Voltage Divider Bias. Discussion of Emitter-Follower configuration. ¼fo’koluh; Áo/kZu rFkk vfHkufr dh vko';drkA CE foU;kl ds fy, VªkaftLVj vfHkufr ifjiFk ds fy, fLFkjrk xq.kkad rFkk bldh x.kuk& fLFkj vfHkuhfr ¼vkèkkj çfrjksèkd fofèk½] mRltZd vfHkur ¼fLFkj vfHkufr ds lkFk mRltZd çfrjksèkh½] laxzkgd ls vk/kkj vfHkur ¼laxzkgd QhMcSd ds lkFk vk/kkj vfHkufr½ rFkk oksYVst foHkktd vfHkufrA mRltZd&vuqxkeh  foU;kl dh ppkZA½

7

II

Amplifiers (Áo/kZd)

Classification of amplifiers based on Mode of operation (Class A, B, AB, C & D), Stages (single & multi stage, cascade & cascode connections), Coupling methods (RC, Transformer, Direct & LC couplings), Nature of amplification (Voltage & Power amplification) and Frequency capabilities (AF, IF, RF & VF). ¼lapkyu ds vkèkkj ij çoèkZdksa dk oxÊdj.k ¼oxZ A, B, AB, C rFkk D½] pj.kksa ¼,dy rFkk cgq pj.k] dSLdsM vkSj dSLdsM dusD'ku½] ;qXeu fofèk;ksa ¼RC] VªkalQkeZj] lh/ks rFkk LC ;qXeu½] çoèkZu dh ç—fr ds vkèkkj ij çoèkZdksa dk oxÊdj.k ¼oksYVst rFkk ’kfDr çoèkZu½ rFkk vko`fÙk {kerk,a ¼ AF, IF, RF vkSj VF½A½

Theory & working of RC coupled voltage amplifier (Uses of various resistors & capacitors, and Frequency response) and Transformer coupled power amplifier (calculation of Power, Effect of temperature. Use of heat sink & Power dissipation). Calculation of Amplifier Efficiency (power efficiency) for Class A Series-Fed, Class A Transformer Coupled, Class B Series-Fed and Class B Transformer Coupled amplifiers. ¼RC ;qfXer oksYVst çoèkZd dk fl)kar rFkk dk;Z ¼fofHkUu çfrjksèkdksa rFkk la/kkfj=] vkSj vko`fÙk çfrfØ;k dk mi;ksx½ vkSj VªkalQkeZj ;qfXer ’kfDr çoèkZd ¼'kfDr dh x.kuk] rkieku dk çHkkoA ghV Çld rFkk ’kfDr {k; dk mi;ksx½A oxZ A Js.kh&çHkfjr] oxZ A VªkalQ+‚eZj ;qfXer] oxZ B Js.kh&çHkfjr rFkk oxZ B VªkalQ+‚eZj ;qfXer çoèkZdksa ds fy, çoèkZd vko`fÙk ¼’kfDr vko`fÙk½ dh x.kukA½

7

III

Feedback & Oscillator Circuits (QhMcSd vkSj nksfy= ifjiFk)

Feedback Circuits: Effects of positive and negative feedback. Voltage Series, Voltage Shunt, Current Series and Current Shunt feedback connection types and their uses for specific amplifiers. Estimation of Input Impedance, Output Impedance, Gain, Stability, Distortion, Noise and Band Width for Voltage Series negative feedback and their comparison between different negative feedback connection types. ¼QhMcSd ifjiFk& /kukRed vkSj _.kkRed QhMcSd ds çHkkoA oksYVst Js.kh] oksYVst 'kaV] /kkjk Js.kh rFkk /kkjk 'kaV QhMcSd la;kstu çdkj vkSj fof'k"V çoèkZdksa ds fy, mudk mi;ksxA fuos’k çfrckèkk] fuxZe çfrckèkk] yfC/k] fLFkjrk] fo—fr] /ofu vkSj oksYVst Js.kh _.kkRed QhMcSd ds fy, cSaMfoM~Fk vkSj fofHkUu _.kkRed QhMcSd la;kstu çdkjksa ds e/; mudh rqyukA½

Oscillator Circuits: Use of positive feedback for oscillator operation. Barkhausen criterion for selfsustained oscillations. Feedback factor and frequency of oscillation for RC Phase Shift oscillatorand Wein Bridge oscillator. Qualitative discussion of Reactive Network feedback oscillators (Tuned oscillator circuits): Hartley & Colpitt oscillators.¼nksyu ifjiFk& nksyd lapkyu ds fy, /kukRed QhMcSd dk mi;ksxA LoÁfrikfyr nksyuksa ds fy, ckdZgkmt+su ekunaMA RC dyk foLFkku nksyu rFkk ohu lsrq nksfy= ds fy, QhMcSd xq.kkad rFkk nksyu ds vko`fÙkA çfr?kkrh usVodZ QhMcSd nksyu ¼leLofjr nksyu ifjiFk½ dh xq.kkRed ppkZ% gkVZys vkSj dkWyfiV nksydA½

8

VI

Introduction to Fiber Optics (Qkbcj v‚fIVDl dk ifjp;)

Basics of Fiber Optics, step index fiber, graded index fiber, light propagation through an optical fiber, acceptance angle & numerical aperture, qualitative discussion of fiber losses and applications of optical fibers. ¼Qkbcj v‚fIVDl ds ewy] pj.k lwpdkad Qkbcj] xzsMsM lwpdkad Qkbcj] v‚fIVdy Qkbcj ds ekè;e ls çdk'k çlkj] Lohdj.k dks.k vkSj la[;kRed fNnz] Qkbcj gkfu ds xq.kkRed ppkZ rFkk v‚fIVdy Qkbcj ds vuqç;ksxA½

Units

(bdkÃ)

Topics (fo"k;)

No. of Lectures

(O;k[;ku dh la[;k)

Lab Experiment List (ç;ksx'kkyk ç;ksx lwph)

1)  Transistor Bias Stability (VªkaftLVj vfHkuhr fLFkjrk)

2)  Comparative Study of CE, CB and CC amplifier (CE, CB rFkk CC çoèkZd dk rqyukRed vè;;u)

3)  Clippers and Clampers (fDyilZ rFkk DySEilZ)

4)  Study of Emitter Follower (mRltZd vuq;k;h dk vè;;u)

5)  Frequency response of single stage RC coupled amplifier (,dy pj.k RC ;qfXer çoèkZd dh vko`fÙk çfrfØ;k)

6)  Frequency response of single stage Transformer coupled amplifier (,dy pj.k VªkalQkeZj ;qfXer çoèkZd dh vko`fÙk çfrfØ;k)

7)  Effect of negative feedback on frequency response of RC coupled amplifier (RC ;qfXer çoèkZd dh vko`fÙk çfrfØ;k ij _.kkRed QhMcSd dk çHkko)

8)  Study of Schmitt Trigger (f'eV fVªxj dk vè;;u)

9)  Study of Hartley oscillator (gkVZys nksyd dk vè;;u)

10)                Study of Wein Bridge oscillator (ohu lsrq nksyd dk vè;;u)