The operational amplifier or op-amp is a versatile & very efficient device. The op-amp is used to amplify the weak signal and it can be made simply into various forms based on the requirements of the circuit. One of the forms is the voltage follower. Here voltage follower is mainly used for isolating the signal as well as improving load capacity and this is also known as a unity-gain amplifier, isolation amplifier, or buffer amplifier. In a voltage … [Read more...]
Non Inverting Op Amp : Circuit, Working, Derivation, Types and Applications
An operational amplifier which is termed a high gain, DC coupled, inverting feedback amplifier was initially observed in the year 1941 by Karl D. Swartzel. In this configuration, the amplifier is designed using three vacuum tubes which results in a gain of 90 dB, and it functions in the voltage range of ±350 volts. This operational amplifier was just a single inverting type of amplifier and does not have differential inverting and non-inverting inputs. … [Read more...]
What is Feedback Amplifier : Types & Its Applications
In the domain of electronics, a feedback amplifier is a component that acts in response to minimal voltage, power, and current signals and gives the output as a larger signal which comprises the crucial waveform characteristics of the input wave. These amplifiers exist in multiple forms which are extensively implemented in many electronic devices like televisions, computers, radio, and audio equipment. The functionality of amplification can be offered … [Read more...]
What is an Isolation Amplifier : Features & Its Applications
An isolation amplifier is fundamentally used to reduce the common voltage between the source side and the power load side. They provide electrical isolation and acts as electrical safety barriers. They are also used to protect the operators from leakage currents. These are some of the most frequently used devices. They work fundamentally on the operational amplifier principle (OP-AMP). Due to their versatility, they find numerous applications in both … [Read more...]
What is a Stagger Tuned Amplifier : Working & Its Applications
The basic and important theory that modern electronics are completely based on is Amplification. And the device which is utilized for the purpose of amplification is Amplifier. In the concept of amplifiers, the first practical device that was used is a triode vacuum tube in the year 1906 and this invention led to the discovery of amplifiers in 1912. And now, there are many classifications in amplifiers such as single tuned, double-tuned, and stagger tuned … [Read more...]
What is Cascade Amplifier : Circuit & Its Working
One of the most crucial devices in the history of the electronics domain is Amplifier. It is the device that acts in response to a minimal amount of current, voltage, or power and generated a larger output signal. This scenario is called amplification and it can be delivered by various devices such as generators, vacuum tubes, transformers. But these, people also utilize solid-state microcircuits in the place of amplifiers. In most situations, the output … [Read more...]
What is DC Amplifier : Circuit Diagram & Its Applications
An amplifier which is simply termed as the amp is the most essential component in the electronics industry. Not only the amplifier boosts the signal level, the device even delivers an enhanced quality of the input signal. To boost up voltage level, preferably transformers are used, while a relay is utilized for switching ON or OFF of electric pulses. And to magnify the range of fluctuating signals, transistor-based amplifiers are used. So, we are … [Read more...]
What is an Instrumentation Amplifier : Working & Its Applications
Either it is household or business necessity, we require sometimes to know the regulation and measurement of some physical conditions. For instance, in a diary organization, we require to calculate the humidity and temperature levels to maintain good product quality and accurate temperature levels for the product. So, these changes have to be transformed into electrical quantities, and then those need to be amplified. So, the amplifiers that are employed … [Read more...]
What is an LM386 Audio Amplifier : Circuit Working & Its Applications
We all know that amplifiers hold great prominence in the scope of the electrical and electronics industries. Moving in this scenario, today our discussion will be on an integrated circuit which is LM386. It is the IC including a low voltage audio power amplifier. This IC was initially invented by Ernie Leroy Long in the year 1969 and the first application of this device was as a fuel injection system in the Ford car. There exist various models of LM386 … [Read more...]
What is a Chopper Amplifier : Types & Its Applications
In the scope of the electronics domain, we need to deal either with a larger or smaller amplification range of signals. Let us consider the scenario that we need to amplify a signal in the range of millivolts, and this is the signal where the change in volt in correspondence to change in time is very minimal. These signals cannot be amplified using RC coupled amplifier because these signals could not be bypassed through a coupling capacitor. Even the … [Read more...]