GATE 2020

In this topic, you have to study the working of 555 Timer IC and the role of various terminals. After getting a basic idea of working you can understand how to realize the Mos-stable and Astable Multivibrator using 555 Timer IC. You have to learn about the time period and duty cycle of these multivibrators. If you can follow this post and study the topics mentioned in detail then I don’t think there will be any question in Analog Electronics that will trouble you. But make sure to change the mindset and approach this subject from Network Analysis point of view rather than Electronic Devices.

     This chapter begins with the study of Differential Amplifiers and then the basic characteristics of Op-Amp such as Offset Voltage and Current, Bias Current, Slew Rate, CMRR, SVRR, etc. Then you have to study about the differences between Ideal and Practical Op-amp. Also, study the model of the practical op-amp which includes Input Resistance and Output Resistance also. Then comes the most important concept in Op-Amp which is the concept of Virtual Ground. Based on this concept you have to understand the concept of Inverting Amplifier, Non-Inverting Amplifier, Inverting Summer, Non-Inverting Summer, Differentiator, Integrator, Current to Voltage Converter, Voltage Follower, etc. You should be able to solve any random circuit including Op-Amp using this concept.       Then you have to study the non-linear applications of Op-Amp such as Precision Diode, Half Wave Rectifier, Full Wave Rectifier, Log Amplifier, and Anti-log amplifier. Then using t...

This topic begins with the understanding of Barkhausen Criteria and then different types of oscillators such as RC Phase Shift Oscillator, and Wein Bridge Oscillator which are also called as Audio Frequency Amplifier. Then we have to study about the Radio Frequency Oscillator such as Hartley Oscillator, Colpitt Oscillator, Clapp Oscillator, and Clapp Oscillator. You also have to study the stability of Oscillator and Figure of Merit.

Again because of basic knowledge about Electronic Devices you do not need to study about working of BJT in detail and you can directly come to different configurations of BJT which are Common Emitter, Common Base, and Common Collector and about the various operating modes of BJT which are cut-off, Active and Saturation. Then you can study about biasing techniques in BJT which are Fixed Bias, Self Bias, and Voltage Divider Bias and in each of these configurations you need to understand how to compute the stability factor. By calculating Stability Factor you can determine the relative stability of each configuration. To improve the thermal stability you can also study about Compensation Techniques such as Diode Compensation, Thermistor, and Sensistor Compensation. Based on this knowledge you can study about DC applications of BJT such as Voltage Regulator by the use of the combination of BJT and Zener Diode. Also the concept of Current Mirror and Current Steering Circuits. Af...

GATE 2020 Virtual Calculator - How to Use it? One of the features which will be provided to all candidates attempting the entrance examination is the virtual calculator of GATE 2020. Along with the online examination, the GATE 2020 virtual calculator will be made available to help the candidates with their calculations and more. The calculator was incorporated as an important feature of GATE in 2016. Since the candidates will not be allowed to use a physical calculator, they will have to use the virtual calculator of GATE 2020. The question paper will also be set according to GATE 2020 virtual calculator. Read the full article to know in detail the steps to use and main feature of GATE 2020 Virtual Calculator. Features of GATE 2020 Virtual Calculator The virtual calculator of GATE 2020 will be made available for the candidates who are appearing for the examination. In the GATE 2020 virtual calculator, the candidates will be able to find the keys for simple operations on ...

Understanding the   syllabus of GATE exam  is essential for its preparation. For instance, unless you have a clear picture of the topics that would be asked in the exam, you won’t be able to prepare for it efficiently. Sections Topics Engineering Mathematics Linear Algebra Calculus Probability and Statistics Differential Equations Vector Analysis Complex Analysis Numerical Methods Networks, Signals and Systems Continuous-time signals Network solution methods Electronic Devices Poisson and continuity equations; P-N junction, Zener diode, BJT, MOS capacitor, Energy bands in intrinsic and extrinsic silicon; Generation and recombination of carriers; Carrier transport current, drift current, mobility and resistivity; MOSFET, LED Analog Circuits BJTs and MOSFETs, Small signal equivalent circuits of diodes; Single-stage BJT and MOSFET amplifiers: biasing, bias stability, mid-frequency small-signal analysis, Simple diode circuits: clip...

 The  GATE Electronics & Communication Engineering (ECE)  2020 will be conducted by  IIT Delhi  this year. The GATE ECE 2020 exam date has been released with the release of GATE Brochure. The GATE 2020 exam will take place on  1st Feb, 2nd Feb, 8th Feb, & 9th February 2020 .  Graduate Aptitude Test in Engineering  is a National Level Entrance exam conducted for the admissions to various post-graduate education programs (e.g. Master of Engineering, Master of Technology, Doctor of Philosophy) in Indian higher education institutes, with financial assistance provided by MHRD and other government agencies GATE Exam is jointly conducted by the Indian Institute of Science (IISc), Bangalore and the seven Indian Institutes of Technology (at Bombay, Delhi, Guwahati, Kanpur, Kharagpur, Madras and Roorkee) on behalf of the National Coordination Board (NCB)-GATE, Department of Higher Education, Ministry of Human Resource Development (MHRD), G...

    The Examination will be conducted in an online mode held for 23 papers where the candidate has to opt only for 1 paper which will carry a total of 100 marks with a total exam duration of 3 hours. For more details, you can go through the GATE Exam Pattern below.