Quarter Wavelength Transmission Line: Sections of transmission lines that are exactly a Quarter Wavelength Transmission Line or Half Wavelength Transmission Line long have important impedance-transforming properties, and are often used for this purpose at radio…
Quantitative Theory of PN Junction Diode: Quantitative Theory of PN Junction Diode - Here an expression for the total current will be derived as a function of the applied voltage with the assumption that depletion…
Quality Systems Interview Questions and Answers: 1. What are the three series of ISO 9000 standard? Ans. ISO 9000 : 2000-Quality Management System-(QMS)-fundamentals and vocabulary ISO 9001 : 2000-(QMS)-requirements ISO 9004 : 2000-(QMS)-guidelines for performance…
Quality Factor of Parallel RLC Circuit: Consider the Quality Factor of Parallel RLC Circuit shown in Fig. 8.16. In the circuit shown, the condition for resonance occurs when the susceptance part is zero. Admittance The…
Q Meter: The overall efficiency of coils and capacitors intended for RF applications is best evaluated using the Q value. The Q Meter is used to measure some electrical properties of coils and capacitors. The…
Pyrometer Working Principle: When temperature being measured is very high and physical contact with the medium to be measured is impossible or impractical, optical pyrometer based on the principle of thermal radiation are used. These…
PWM VSI Squirrel Cage Induction Motor Drive: The PWM VSI Squirrel Cage Induction Motor Drive is shown in Fig. 10:24. dc link is supplied from ac source through a transformer and a diode rectifier. Because…
PWM VSI Induction Motor Drive: PWM VSI Induction Motor Drive for traction is shown in Fig. 10.21. A pulsewidth modulated voltage source inverter converts dc into variable frequency and variable voltage ac, which is then…
PWM Inverter Fed Induction Motor Drive: Voltage control in the square wave inverter has been external to the inverter, by means of a phase controlled rectifier on the line side. This posed some practical application…
Push Pull Amplifier - Circuit Diagram and its Workings: As we know already that, double-ended or push pull amplifiers makes use of two identical transistors in a single stage. It consists of two loops in which the…
