b tech coaching in delhi

EMAC:- Three phase induction motors and widely used for industrial applications, these are used to drive heavy machines and rotors. They develop torque from three phase windings in which a rotating magnetic field is produced. Rotating magnetic field exists in stator. This magneticfield when acts on the rotator, causes change in magnetic flux and hence eddy currents are produced in rotor. Production of eddy currents causes rotor to move in synchronously with the rotating magnetic field, it is because of the opposing nature of eddy currents due to which they oppose the relative motion.  Its study is very important from the engineering application point of view. Slip is a very important parameter of three phase induction motor. It is defined as the fractional difference is speed of the rotating magnetic field and the rotational speed of rotor.

Signal and system:- Basic signals those are used in engineering study are :- unit step signal, unit impulse signal, unit ramp signal, sinusoidal signal, exponential signal. These signals are used in the analysis and design of various communication engineering blocks. Many operations can be performed on signals, such as time shifting, time reversal, amplitude scaling. Signals can be classified into many types such as even odd signals, deterministic and random signals, periodic and non periodic signals, causal non causal signals. These classification of signals are very important in the study of digitalsignal processing, communication engineering.

B.Tech tuitions in Delhi Time table 12 Jul 2015

Following is the schedule of B.Tech tuitions in Delhi on Tejas Engineers Academy

Time and Subject	Topics	Batch Details
9:30 AM  to 11:30 AM (Electromechanical Energy Conversions) Category: B Tech Tuitions in Delhi for Electromechanical Energy conversions	In this class detailed analysis of three phase induction motor is to be covered. Three phase induction motor consists of three windings run by three phases of ac. These three phases are differing from each other by a phase angle of 120 degree. In this class a detailed analysis numerical solving and slip derivation is to be covered. Category:- B.Tech tuitions in Delhi for EMAC, B. Tech tuitions in Delhi for three phase induction motors, B.Tech tuitions in Delhi for Electromechanical Energy conversions, B.Tech tuitions in Delhi for transformers.	There is a batch of MDU students studying the EMAC subject. This is a special batch which is formed for mercy students. Syllabus is to be completed in one month
9:30 AM to11:30  AM Subject:- Signals and systems. Category:-B.Tech tuitions in Delhi for signals and systems.	This is a signal system class from start. In this class basic signals and their classification is to be studied, it comprises of time shifting, time scaling, amplitude scaling, time reversal, and negation. In this class we will also study signal classification, which involves, the types of signals such as, periodic signals, energy signals and power signals, causal non causal signals etc. Category:- B.Tech tuitions in Delhi for signal classification, B.Tech tuitions in Delhi for signal transformation, B.Tech tuitions in Delhi for energy and power signals.	This is a special batch which formed for the outsider students and they have to complete the syllabus in 10 days.

B Tech coaching in Delhi for Digital Signal processing

Digital Signal processing is a very crucial subject of Engineering for which B Tech coaching in Delhi is provided on vast level. B Tech coaching institutes in Delhi primarily focuses on Filter design.

There are two types of filters in DSP, FIR filters and IIR filters. FIR filter stands for Finite Impulse response filters whereas IIR stands for Infinite Impulse response filters. In DSP every block to which we give some input signal is said to be a filter. The output produced by block depends upon the impulse response of system. Impulse response of system is the output produced by system by giving it a unit impulse as input signal. There is a high demand of B Techcoaching in Delhi for FIR Filter design. There are very special types of FIR filters which are known as Linear Phase FIR filters. These types of Filters have constant group and phase delays. Phase of system is tan^-1(Imaginary Part / Real Part) of Frequency response of system.  Negative differentiation of phase of filter with respect to angular frequency is known as group delay of Filter. Group delay of Filter must be constant for a filter to be linear phase. Research is being done these days to produce linear phase IIR filter. B Tech coaching in Delhi deals with both types of linear phase filters designs i.e. linear phase FIR filters and Linear phase IIR Filters.

We will now describe steps to design FIR filters for which B Tech coaching in Delhi is provided. For Designing Linear phase FIR filters first we should be having a given desired frequency response H_d(e^jw). Then we take its IDTFT to find the time domain version of desired response h_d[n]. We then multiply h_d[n] with a suitable window function w[n]. This gives us filter coefficients h[n]. We then take its Z-Transform to find H(z). Then we draw filter structure in direct form or cascade form. The aim of B Tech coaching in Delhi is to give exposure to Engineering students about various types of Filter design algorithms. Above technique is known as window method of FIR filter design.

There are other techniques also for designing IIR Filters such as Bilinear transformation and Impulse invariance method for which B Tech coaching in Delhi is provided. In next post we will describe various techniques in very easy way for designing IIR filters.