Improving Regulator Performance: Error Amplifier Gain - The performance of a regulator is dependent on the voltage gain of the error amplifier. A higher gain amplifier gives better line and load regulation. So, anything that…
Construction of Transformer and types of transformer: Construction of Transformer is intimately related to the purpose for which these are to be used; winding voltage, current rating and operating frequencies. The construction has to ensure…
Gate Bias Circuit: Circuit Operation - Consider the Gate Bias Circuit shown in Fig. 10-6. The FET gate terminal is connected via resistor RG to a bias voltage VG. If the gate is directly connected…
Impulse Protective Gap Arrester: It was pointed out that the sphere gap has an impulse ratio of unity, but suffers from the drawback that the arc between its electrodes is not self-extinguishing. The horn gap…
Chopper type DC Amplifier Voltmeter (Microvoltmeter): Chopper type DC Amplifier Voltmeter the dc input voltage is converted into an ac voltage, amplified by an ac amplifier and then converted back into a dc voltage proportional…
Introduction to Digital Filtering: It has been seen that control of the band width of a circuit or signal is of paramount importance in optimizing the measurement of a signal. Formerly band width control was…
Ï€ or pi Network in Network Analysis: Consider following two port ’π’ or pi Network type network with assumed voltages V1 and V2 and current I1 end I2 as shown in Fig. 6.11. Let the…
Active Filters Interview Questions and Answers: 1. What is meant by ‘frequency response’ of a filter? Ans. A graph of the magnitude of the gain versus frequency is called a frequency response plot. 2. The gain…
Sequence Impedance of Power System: Each element of power system will offer impedance to different phase sequence components of current which may not be the same. For example, the impedance which any piece of equipment…
Circular Chart Recorder Working Principle: Circular Chart Recorder Working Principle - As the name implies, the data is recorded on a flat circular chart. The basic assembly of a single pen circular chart recorder is…
