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Principles of Electronics By VK Mehta and Rohit Mehta

Principles of Electronics By VK Mehta and Rohit Mehta

Book Overview

The Book Principles of Electronics By VK Mehta and Rohit Mehta is covered all important topics of basic electronics for electronics students.

Book Name – Principles of Electronics By VK Mehta and Rohit Mehta
Author – VK Mehta and Rohit Mehta
Publisher – S. Chand
Language – English
Edition – 11th Edition
Paperback – 792 Pages


  • Each chapter focuses on the core concepts and clearly elucidate the fundamental principles, methods, and circuits involved in electronics.
  • 1450+ figures and examples provide comprehensive support to all concepts explained.
  • Close to 1400 chapter-end questions in 4 different formats provide apt practice to all concepts explained.

Book Contents

1. Introduction

Electronics –Atomic Structure – Structure of Elements –The Electron of an Electrons –Voltage Source –Constant voltage source – Constant current source –Conversion of voltage sources into current sources –Maximum power transfer theorem – Thevenin,s theorem –Procedure for Finding Theveninequivalent circuit –Nortons theorem –Procedure for finding Norton equivalent circuit –Chassis and ground.

2. Electron Emission

Electron Emission –Types of Electron Emission –Thermionic emission –Thermionic emitters –Cathode construction –Field emission –Secondary emission –Photo Electron Emission

3. Gas-filled Tubes

Gas-Filled tubes –Conduction in a gas – Cold cathode gas diode –Characteristics of cold –Cathode diode –Application of glow tubes –Hot –Cathode gas diode –Thyratron – Applications of the thyratron.

4. Atomic Structure

Bohr,s atomic model –Energy levels –Energy bands –  Important energy bands in solids – Classification of solids and energy bands –Silicon.

5. Semiconductor Physics

Semiconductor – Bonds in Semiconductors Crystals –Commonly used Semiconductors –Energy band description of Semiconductors –Effects of temperature on Semiconductors –Hole current –intrinsic Semiconductor –Extrinsic Semiconductor –n-type Semiconductor –P-type Semiconductor –Charge on n-type and p-type Semiconductors –Majority and minority carriers –PN- junction –Properties of pn-junction –Applying D.C. voltage across pn junction – Volt –ampere characteristics of pn –junction –Important terms –Limitations in the operating conditions of pn –junction.

6. Semiconductor diode

Semiconductor diode –crystal diode as a rectifier –resistance of crystal diode –equivalent circuits of crystal diode –crystal diode equivalent circuits –important terms –crystal diode rectifiers –half-wave rectifier –output frequency of half –wave rectifier – efficiency of half –wave rectifier –full –wave rectifier center –tap –full – wave rectifier –full- wave bridge rectifier – output frequency of full –wave  rectifier –efficacy of full –wave rectifier –faults in center –tap full –wave rectifier –nature of rectifier output –ripple factor –comparison of rectifiers –filter circuits –types of filter circuits –voltage multipliers – half –wave voltage double –voltage stabilization –zener diode – equivalent circuit  of zener diode –zener diode as voltage  stabilizer –solving zener diode circuits diodes versus vacuum –diodes.

7. Special –purpose diodes

Zener diode –light –emitting diode (LED)-LED voltage and current –advantages of LED –multicolor LEDs –applications of LEDs –photo –diode –photo –diode operation – characteristics of photo –diode –applications of photo –diodes –opt isolator  -tunnel diode –tunnel diode oscillator –varactor diode –application of varactor diode –Shockley diode.

8. Transistors

Transistor –naming the Transistor terminals –some fact about the Transistor- Transistor action – Transistor symbols – Transistor as an amplifier Transistor connections –common bas connection –characteristics of common base connection CE common current emitter connection –measurement of leakage –characteristics of common emitter connection –common collector v –comparison of transistor connections –commonly used  transistor connection – transistor as an amplifier in CE arrangement – transistor load line analysis –operating point – practical way of drawing –CE circuit –output from transistor amplifier –performance of transistor amplifier –Cut off and saturation points –power rating of transistor –determination of transistor configuration –semiconductor devices numbering system – transistor lead identification – transistor testing –applications of common base amplifier – transistor versus vacuum tubes .

9. Transistor biasing

Faithful amplification – transistor biasing –inherent variation of transistor parameters –stabilisation –Es – -sentials of a transistor biasing circuit –stability factor –method of transistor biasing –base resistor method –emitter bias circuit –circuit analysis of emptier bias –biasing with collector feedback resister –voltage divider bias method –stability factor for potential divider bias -design of transistor biasing circuits –mid – point biasing –which value of β to be used –miscellaneous bias circuits –silicon versus germanium –instantaneous  current and voltage waveforms –summery of transistor bias circuits.

10. Single stage transistor amplifiers

Single stage transistor–amplifier–how transistor amplifiers? –graphical demonstration of transistor amplifier –phase reversal –input /output phase relationship –D.C. and A.C. equivalent circuits –load line analysis –voltage gain –A.C. emitter resistance –formula for A.C. emitter resistance –voltage gain of CE amplifier –voltage gain of unloaded CE amplifier voltage gain of CE amplifier without Ce – input impedance of CE amplifiers  – amplifier equivalent circuit –equivalent circuit equivalent circuit with single source –gain and transistor configurations.

11. Multistage Transistor amplifiers

Multistage Transistor amplifier –role of capacitors in Transistor amplifier –important –important terms – properties of db gain –R.C. couoled amplifiers – direct – couple amplifier – com –parison of different types of  coupling – difference  be –tween Transistor  and tube amplifier.      

12. Transistor audio power amplifiers

Transistor audio power amplifier-small-signal and larg – signal amplifiers- output power of amplifier-difference between voltage and power amplifier-performance quantities of power amplifier-classification of power amplifier-expression for collector efficiency-maximum collector efficiency for series-fed class A amplifier-maximum collector efficiency of transformer coupled class A power amplifier-important points about class A power amplifier-thermal runaway-heat sink-mathematical analysis-stages of a practical power amplifier-driver stage-output stage-push pull amplifier-maximum efficiency for class B operation-complementary-symmetry amplifier.

13. Amplifiers with negative feedback

Feedback –principles of negative voltage Feedback in amplifier –gain of negative feedback amplifier – advantages of voltage Feedback  – Feedback circuit-principles of negative current Feedback –current gain with negative current Feedback –effects of negative current Feedback –emitter follower –D.C. analysis of emitter follower – voltage gain of emitter follower – input impedance of emitter follower – output impedance of emitter follower-application of emitter follower-dariington amplifier

14. Sinusoidal oscillators

Sinusoidal oscillator-types of sinusoidal oscillations-oscillatory circuit-undamped oscillations from tank circuit-positive feedback amplifier-oscilator-essentials of transistor oscillator-explanation of barkhausen criterion-different types of transistor oscillators-tuned collector oscillator-colpitt’s oscillator-hartley oscillator-principles of phase shift oscillators-phase shift oscillator-wien bridge oscillator-Limilations of LC and RC oscillators-piezoelectric crystal-working of quartz crystal-equivalent circuit of crystal- frequency response of crystal-transistor crystal oscillator.

15. Transistor Tuned Amplifier

Tuned amplifier – destinction between tuned amplifier and other amplifier – analysis of paralled tuned circuit –characteristics of parallel resonant circuit-advantages of tuned amplifiers-why not tuned amplifier for low frequency amplification?-frequency response of tuned amplifier-relaction between Q and between – single tuned amplifier-analysis of tuned amplifier – A.C equivalents circuit of turned amplifier –double tuned amplifier-bandwidth of double –tuned amplifier-practical application of double tuned amplifier- tuned class C amplifier-class C operation-D.C and A.C loads-maximum A.C. output power .

16. Modulation And Demodulation

Radio broadcasting , transmission and reception –modulation – types of  modulation –amplitude modulation – modulation factor –analysis of amplitude modulated wave –sideband frequencies in AM wave –transistor AM modulation –frequency modulation-theory of frequency modulation –com –parison  of FM  and AM-demodulation-essentials in demodulation-A.M diode detector – A.M radio reclivers-types of A.M radio receivers –stages of superhetrodyne radio receiver –advantages of  superhetrodyne circuit-FM receiver –difference between FM and AM receivers.

17. Regulated D.C power supply

Ordinary D.C power supply-important terms-regulated power supply power supply-types of voltage regulator-zener diode voltage regulator-condition for proper operation of zener regulator – transistor shunt voltage regulator – shunt feedback voltage regulator-glow –tube voltage regulator-series triode voltage regulator-series double triode voltage regulator-IC voltage regulators-fixed positive voltage regulators-fixed negative voltage regulators-adjustable voltage regulators-dual –tracking voltage regulator.

18. Solid-state switching circuits

Switching circuit-mechanical switch-electromechanical switch or relay-electronic switches-advantages of electronic switches –important terms-switching transistor-switching action of a transistor –multivibrators-types of multivibrators-transistor –transistor astable multivibrators –transistor monostable multivibrator-transistor bistable  multivibrator-differentitaing circuit-integrating circuit –important applications of diodes –clipping circuit applications of clippers –clamping circuit –basic idea of a clamper –positive clamper –negative clamper.

19. Field-effect transistor

Types of field effect transistor  –junction fieldeffect transistor   (JFET) principle and working of JFET –schematic symbol of JEFT –important of JFET –difference between JFET and  bipolar transistor   -JFET –salient features of of JFET –important  terms – expression for drain   current –advantages of JFET –parameters of JFET –relation among JFET parameters –variation of transconductance (gm or gfs) of JFET –JFET biasing –JFET biasing by bias battery – self –bias for JFET –JFET with voltage – divider bias –JFET connections –practical JFET amplifier –D.C. and A>C. equivalent circuits of JFET –D.C. load line analysis – voltages gain of JFET amplifier (with source resistance Rs) –JFETB applications –metal oxide semiconductor FET (MOSFET)-types of MOSFET- symbols for D-MOSFET – circuit operation of D-MOSFET – D-MOSFET –  transfer characteristic – trans conductance and input impedance of D-MOSFET – D-MOSFET –  blasing –common source D-MOSFET –  amplifier – D-MOSFET s versus JFET s – E –MOSFET –E – MOSFET blasing circuits – D-MOSFET s versus E-MOSFETS.

20. Silicon controlled rectifiers

Silicon controlled rectifier (SCR)working of SCR-equivalent circuit of SCR-V-I characteristics of SCR-SCR in normal operation –SCR as a switch –SCR switching –SCR half-wave rectifier-SCR full –wave rectifier –single –phase SCR inverter circuit –Applications of SCR-Light-activated scr.

21. Power electronics

Power electronics –the triac construction –SCR equivalent circuit of  triac- triac operation – triac phase control circuit –applications of triac-the diac –applications of  triac-the diac –applications of diac-unijunction transistor (UJT) –equivalent circuit of a UJT-characteristics of UJT-advantages of UJT-applications of UJT.

22. Electronic instruments

Electronic instruments –multimeter –applications of multimeter –sensitivity of multimeter-merits and demerits of multimeter-meter protection –electronic voltmeters –vacuum tube voltmeter(VTVM) –applications of VTVM-merits and demerits of VTVM-transistor voltmeter circuit-bridge rectifier voltmeter –cathode ray oscilloscope –cathode ray tube –deflection sensitivity of –applying single across vertical plates –display of single waveform on CRO-signal pattern on screen –various controls of CRO-applications of CRO.

23. Integrated circuits

Integrated circuits-advantages and disadvantages of   Integrated circuits –inside an IC package –IC classifications –making monolithic IC-fabrication of components on monolithic IC-simple monolithic ICs-IC packing –IC symbols-scale of integration-some circuits using ICs.

24. Hybrid parameters

Hybrid parameters–determinations of parameters-h parameter equivalent circuit –performance of a linear circuit in h parameters-the h parameters of a transistor –nomenclature for transistor h parameters-transistor circuit performance in h parameters –approximate hybrid formulas for transistor amplifier –experimental determination of transistor h parameters – limitations of h parameters.


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