Choke Input Filter Operation

Choke Input Filter Operation

The below Fig. shows a typical choke input filter circuit.  It consists of a Choke L connected in series with the

Capacitor Filter Operation

Capacitor Filter Operation

Capacitor filter.  Fig. shows a typical capacitor filter circuit.  It consists of a capacitor C placed across the rectifier output in

What is a Filter Circuit

What is a Filter Circuit ?

Generally, a rectifier is required to produce pure d.c. supply for using at various places in the electronic circuits. However,

Transistor as Amplifier

Transistor as Amplifier

A transistor raises the strength of a weak signal and thus acts as an amplifier. The Below Fig shows the basic circuit

working-of-pnp-transistor

Working of NPN Transistor

The emitter-base junction of a transistor is forward biased whereas collector-base junction is reverse biased. If for a moment, we

transistor-terminals

Basics of Transistors

A transistor consists of two pn junctions formed by *sandwiching either p-type or n-type semicon-ductor between a pair of opposite