Schedule of Engineering Subject Tuitions in Delhi
Following are the Engineering tuitions in Delhi classes to be held on 30th July 2015 on Tejas Engineers Academy
Subject:- Analog Electronics – 1
Time: 10 AM to 12 PM
Topics to be covered:- In this lecture we will cover Biasing stabilization of Bipolar Junction Transistor. Topics to be covered are Transistor Modes, Transistor current components, Transistor biasing configuration, Common base, common emitter, common collector and their comparison. Fixed biasing technique, DC load line, AC load line and finding Q-point, Thermal runaway, self biasing with negative feedback. This lecture will be very important if you are a GATE student or a regular engineering student having Analog electronics as the main subject. Transistor is a three terminal semiconductor device having emitter, base and collector regions. A transistor can be of two types, npn or pnp. A transistor needs to be biased before using in amplifier circuit. There are two types of biasing the transistor, fixed biasing and self biasing. In fixed biasing operating point of transistor drifts with change in temperature, this problem is known as thermal runaway. To avoid this problem we use emitter resistant to provide negative feedback. Thermal runaway can also be avoided by using bias compensation.
Subject :- Signals and Systems
Time 12 PM to 2 PM
Topics to be covered and brief explanation:
In this lecture we will cover the system and its properties. A system is a device to which we apply an input signal and as a result it produces some output signal. There can be of two types of systems, continuous time system and discrete time systems. A continuous time systems is that which takes a continuous time signal as its input while discrete time system is that which takes discrete time signal as its input and produced discrete time signal as its output. A system has about six properties. (a) Linearity :- A system is said to be linear if weighted sum of two input signals produces weighted sum of corresponding output signals. (b) Time Invariance:- A system is said to be time invariant if a time shift in the input signal produces equal time shift in the output signal. (c) Causality:- A system is said to be causal if its present output depends upon present or previous values of input only but not on future values. (d) Invertibility:- A system is said to be invertible if we are able to find the value of output signal by the knowledge of input only. (e) Static or Dynamic system:- A system is said to be static or memory less if there is no delay or advanced operation. (f) Stable system:- A system is said to be BIBO stable if a bounded input applied to its input produces bounded output.
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Subject : STLD or Digital Electronics, Digital Circuits and systems
Time :- 2 PM to 4 PM
Brief:-
In this lecture we will cover combinational logic circuits design, such as Half Adder, Full Adder, Multiplexers, De-Multiplexer, Decoder, Encoder etc.
A Half Adder is a circuit which is used to add two bits. It produces two outputs, Sum and Carry. Half adder circuit can be realized by taking one exclusive or gate and other and gate. Sum is the xor of both input signals while carry is logic and of both input signals. A Full adder is used to add three bits or information. It has three inputs A, B and C and two outputs Sum and Carry. Sum is the xor of A , B and C while Carry is given by Carry = AB + BC + CA. These equations are determined by first writing the truth table of full adder then solving for Sum and Carry using K – MAP.
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