# Category: Amplifier

## Maximum Efficiency for Class B Power Amplifier

Maximum Efficiency for Class B Power Amplifier We have already seen in our previous article about class B  power amplifier that a push-pull circuit uses two transistors working in class B …

## Maximum Collector Efficiency of Transformer Coupled Class A Power Amplifier

Maximum Collector Efficiency of Transformer Coupled Class A Power Amplifier In class A amplifier , the load can be either connected directly in the collector or it can be transformer …

## Maximum Collector Efficiency of Series-Fed Class A amplifier

Maximum Collector Efficiency of Series-Fed Class A amplifier Fig.1 shows a series-fed class A amplifier . This circuit is rarely used for power amplification due to its poor collector efficiency …

## Class A , Class B & Class C Power Amplifier

Class A , Class B & Class C Power Amplifiers Classification We have already discussed about audio power amplifiers in our previous tutorial. In this post we are going to discuss …

## Single Stage Transistor Amplifier

Single Stage Transistor Amplifier When in an amplifier circuit only one transistor is used for amplifying a weak signal, the circuit is known as single stage amplifier. However, a practical …

## What is an audio power amplifier ? Explain the difference between voltage amplifier and power amplifier.

Transistor Audio Power Amplifier A transistor amplifier which raises the power level of the signals that have audio frequency range is known as transistor audio power amplifier. A practical amplifier …

## Direct Coupled Transistor Amplifier with Circuit Diagram

Direct Coupled Transistor Amplifier There are many applications in which extremely low frequency signals i.e. below 10 Hz are to be amplified, for example, amplifying photo-electric current, thermo-couple current etc. …

## Explain the Working of Transformer Coupled Transistor Amplifier with Circuit Diagram

Transformer Coupled Transistor Amplifier As we have already discussed in our previous tutorial, in case of a RC coupled transistor amplifier the voltage and power gain are low since, the effective …

## Explain Working of RC Coupled Amplifier

RC Coupled Amplifier Due to its low cost and excellent audio fidelity over a wide range of frequencies, an RC Coupled Amplifier is the most popular type of coupling used in a …