Construction and Working of Vacuum Pentode: In order to retain the advantages of screen grid and eliminate the harmful effects of attracting the electrons due to secondary emission by the screen grid, an additional third…
IC Linear Voltage Regulators: 723 IC Regulator - The basic circuit of a 723 IC Linear Voltage Regulators in a dual-in-line package is shown in Fig. 17-20. This IC has a voltage reference source (D1),…
Braking of Induction Motor: The three types of Braking of Induction Motor, namely regenerative, dynamic and counter current braking can be accomplished with induction motors also. Regenerative braking When the rotor of an induction motor…
Inverter Control using Terminal Voltage Sensing: The Inverter Control using Terminal Voltage Sensing of the synchronous motor is obtained using the triggering pulses to the inverter which are synchronized with the rotor position. These signals…
Instruction Format of 8085: Each Instruction Format of 8085 and Data Format of 8085 microprocessor has specific information fields. These information fields of instructions are called elements of instruction. These are : Operation code :…
Current Series Feedback Amplifier Circuit: Current Series Feedback Amplifier Circuit is also known as series-derived series fed feedback. In such a feedback circuit, a part of the output current is made to develop a voltage…
Block Diagram of Electrical Drives | Advantages | Applications: Block Diagram of Electrical Drives - Invention of thyristor led to emergence of semiconductor drives in early sixties. The improvements in converters and development of new…
Voltage Control Interview Questions and Answers: 1. Why is it necessary to keep the receiving-end voltage constant within specified limits ? Ans. For satisfactory operation of equipment/machinery supplied by the electrical power network it is…
Summing Amplifier: As the input impedance of an op-amp is extremely large, more than one input signal can be applied to the inverting amplifier. Such circuit gives the addition of the applied signals at the…
Domestic Refrigerator Working Principle and Construction: The applications of refrigeration for domestic purposes are mainly in the form of domestic refrigerator and home freezers. The main purpose of this type of refrigeration is to provide…
