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Positive and negative feedback amplifier

by shabbusharma

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 …

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Hartley oscillator I Hartley Oscillator Working I Hartley Oscillator Derivation

by shabbusharma

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. …

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Tuned Collector Oscillator

by shabbusharma

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 …

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Operational Amplifier

by shabbusharma

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 …

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Colpitts Oscillator Derivation

by shabbusharma

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 …

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RC phase shift oscillator I Working of phase shift oscillator I Phase shift oscillator

by shabbusharma

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.

by shabbusharma

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

by shabbusharma

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 …

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Common Source Amplifier

by shabbusharma

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 …

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Difference between the n-type and p-type Semiconductor

by shabbusharma

These are the basic, difference between the n-type and p-type semiconductor Sr. No. P-type Semiconductor N-type Semiconductor 1. A p-type semiconductor is formed by adding a III group element as …

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