We have studied that as the voltage across reverse bias PN junction increase to certain value, called breakdown voltage, high reverse current is caused by which may damage the junction …
Read moreDifference between Avalanche breakdown and Zener breakdown
Thevenin’s theorem is an important tool to avoid lengthy and difficult calculation in network analysis. Thevenin’s Theorem Definition According to Thevenin’s theorem,” any two-terminal linear network can be replaced by …
Read moreProof of Thevenin’s Theorem|Definition|Circuit diagram for Thevenin’s Theorem|Application
Why zener diode as voltage regulator Because a Zener diode is used as a voltage stabiliser or voltage regulator to provides a constant voltage from a source whose voltage may …
When a part of output signal is fed back to the input of circuit through a suitable network, the process is called feedback. Feedback is of two types Positive and …
Hartley oscillator Definition Fig. 4 shows the circuit diagram of a Hartley oscillator using a transistor in C.E. configuration. In hartley oscillator, tank circuit consists of L1, L2 and C1. …
Read moreHartley oscillator I Hartley Oscillator Working I Hartley Oscillator Derivation
Construction of tuned collector oscillator It consists of a tank circuit or LC tuned circuit connected to the Collector of the transistor. Hence, the name of this oscillator is tuned …
What is Operational Amplifier An operational amplifier (OP-AMP) is a very high gain differential Amplifier with high input impedance and low input impedance. It is direct coupled and uses negative …
Fig. 6 Shows the circuit diagram of Colpitts oscillator. What is Colpitts Oscillator? In this oscillator, tank circuit consists of C1,C2, and L. Stabilized self-bias to the amplifier is provided …
Fig. 8 shows the circuit diagram of RC phase shift oscillator using transistor in CE configuration. In this circuit, stabilized self-bias to the amplifier is provided by R1, R2, R3, …
Read moreRC phase shift oscillator I Working of phase shift oscillator I Phase shift oscillator
What is Oscillator ? A device used to produce sinusoidal or non sinusoidal ( e.g. square wave ) wave forms without the application of an external input signal is known …
Read moreWhat is Oscillator ? Types of Oscillator and Essential component of an oscillator.