Tuned Collector Oscillator
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 …
Operational Amplifier
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 …
Colpitts Oscillator Derivation
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 …
RC phase shift oscillator I Working of phase shift oscillator I Phase shift oscillator
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, …
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What is Oscillator ? Types of Oscillator and Essential component of an 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 …
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Common Drain JFET Amplifier
Fig. 25 shows the circuit diagram of common drain jfet amplifier or source follower. The output is taken between the source and the ground. Expression for common drain jfet amplifier …
Common Source Amplifier
Fig. 23 shows the circuit of a common source n-channel JFET amplifier. When the positive half cycle of applied input signal voltage vgs is superimposed on VGG, then the gate …
Difference between Step-up and Step-down Transformer
Transformer Definition For many purposes, it is necessary to change (or transform) an alternating voltage from one to another of greater or smaller value. This is done with a device …
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State and prove green’s theorem
Statement of Green’s theorem Green’s theorem is the extension of Stoke’s theorem and the divergence theorem. According to this theorem, if ϕ and ψ be the scalar functions, then Proof …
Prove Divergence and Curl of magnetic field
Divergence and Curl of magnetic field Divergence of Magnetic Field We know, the magnetic field produced by a current element Id L vector at a point P (x,y,z) whose distance …