Electronics
Positive and negative feedback amplifier
When a part of output signal is fed back to the input of circuit through a suitable network, the process…
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Electronics
Hartley oscillator I Hartley Oscillator Working I Hartley Oscillator Derivation
Hartley oscillator Definition Fig. 4 shows the circuit diagram of a Hartley oscillator using a transistor in C.E. configuration. In…
Electronics
Tuned Collector Oscillator
Construction of tuned collector oscillator It consists of a tank circuit or LC tuned circuit connected to the Collector of…
Electronics
Operational Amplifier
What is Operational Amplifier An operational amplifier (OP-AMP) is a very high gain differential Amplifier with high input impedance and…
Electronics
Colpitts Oscillator Derivation
Fig. 6 Shows the circuit diagram of Colpitts oscillator. What is Colpitts Oscillator? In this oscillator, tank circuit consists of…
Electronics
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…
Electronics
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 …
Electronics
Common Drain JFET Amplifier
Fig. 25 shows the circuit diagram of common drain jfet amplifier or source follower. The output is taken between the…
Electronics
Common Source Amplifier
Fig. 23 shows the circuit of a common source n-channel JFET amplifier. When the positive half cycle of applied input…
Electricity and Magnetism
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…