Oscillator Amplitude Stabilization Circuit: Output Amplitude - For all of the Oscillator Amplitude Stabilization Circuit discussed, the output voltage amplitude is determined by the amplifier maximum output swing. The output waveform may also be distorted…
Voltage Level Translator (Level Shifter): Voltage Level Translator (Level Shifter) is usually an emitter follower circuit which is used to shift the dc level at the output of the intermediate stage downward to zero volt…
Instantaneous Power Formula: Instantaneous Power Formula - In a purely resistive circuit, all the energy delivered by the source is dissipated in the form of heat by the resistance. In a purely reactive (inductive or…
Swamping Resistor in Differential Amplifier: The dependence of the voltage gain of the differential amplifiers on variations in ac emitter resistance r′e can be reduced and also the linearity range of the differential amplifiers can…
Pin Diagram of 8279: Fig. 14.83 shows functional and pin diagram of 8279. It is a 40 pin device and looking at Fig. 14.83 (a) we can see that these pins are divided in four…
Special Features of Thyristor Drive Motors: The most commonly used dc motors for thyristor drive are separately excited and series excited dc motors. The thyristor drive motors usually differ from conventional dc motors in construction.…
Features of Traction Drives: Various Features of Traction Drives are: 1. Large torque is required during start and acceleration in order to accelerate the heavy mass. 2. The motor is subjected to torque overloads during…
AC Voltmeter using Half wave Rectifier | AC Voltmeter using Full wave Rectifier | Multirange AC Voltmeter: AC Voltmeter using Half wave Rectifier - If a diode D1 is added to the dc voltmeter, as…
Power System Static Security Levels: A formal System State Classification of power system static security levels was first suggested by DyLiacco and further clarified by Fink and Carlsen in order to define relevant EMS (Energy…
Electrical Power Engineering Multiple Choice Questions and Answers (MCQs) Part 9: 402. Desired illumination level on the working plane depends upon (a) age group of observers. (b) whether the object is stationary or moving. (c)…