Two Quadrant Chopper: Sometimes a chopper may be required to provide a two quadrant operation by retaining the current direction in both motoring and braking modes. Such a Two Quadrant Chopper is shown in Fig.…
Factors Affecting Air Conditioning System: In this modern age everybody is trying to improve his surroundings in order to make living conditions more comfortable. Air conditioning is one of the important contribution in this respect.…
Various Bias Compensation Methods: During the discussion made for various biasing methods for providing stability to the operating point we have seen that self bias (or potential divider bias) and collector-to-base bias circuits provide better…
Difference Between Star and Delta Connections: Difference Between Star and Delta Connections - In star connection with earthed neutral, the maximum voltage of the phase winding to ground is 1/√3 or 58% of the line…
Electromagnetic Induction Relay - Structure and Working Principle: Electromagnetic induction relay operate on the principle of induction motor and are widely used for protective relaying purposes involving a.c. quantities. They are not used with d.c.…
Wien Bridge Oscillator using Op Amp: This is also called RC oscillator which uses RC type of feedback network. The main difference between phase shift and Wien bridge oscillator is that the R-C phase shift…
Shifted Unit Step Function: This Shifted Unit Step Function is defined by the equation for a step function which changes abruptly at the time t = + a. In general, the step function has unit…
Methods of Exciting Waveguides: In order to launch a particular mode in a Methods of Exciting Waveguides, some arrangement or combination of one of more antennas is generally used. However, it is also possible to…
Working Principle of Digital pH Meter | Block Diagram: Working Principle of Digital pH Meter - The Digital Measurement of hydrogen ion activity (pH) in a solution can be accomplished with the help of a…
Constant Current Limiting Circuit: A block of series regulation using simple Constant Current Limiting Circuit is shown in the Fig. 2.119. It is also called short circuit protection circuit as it provides protection against short…
