Amplifiers: Learn About Electronics (Learn Electronics) by HASANRAZA ANSARI

Author:HASANRAZA ANSARI [ANSARI, HASANRAZA]
Language: eng
Format: mobi
Published: 2020-06-21T16:00:00+00:00

The following figure shows a two-stage amplifier connected in cascade.

The overall gain is the product of voltage gain of individual stages.

AV=AV1×AV2=V2V1×V0V2=V0V1AV=AV1×AV2=V2V1×V0V2=V0V1

Where AV = Overall gain, AV1 = Voltage gain of 1st stage, and AV2 = Voltage gain of 2nd stage.

If there are n number of stages, the product of voltage gains of those n stages will be the overall gain of that multistage amplifier circuit.

Purpose of coupling device

The basic purposes of a coupling device are

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