Log amplifier or logarithmic amplifier is an electronic circuit that produces output that is proportional to the logarithm of the applied input. Basically it performs mathematical operation of a logarithm. In this article, we will see the different log amplifier circuits, its working and log amplifier applications. Basically two circuits are there to perform the … Read more
A Shockley diode is a two terminal, three junction, four-layer p-n-p-n semiconductor device. It consists of four alternate p-type and n-type semiconductor layers in a single crystal. It was invented by William Shockley. It is used primarily for switching applications. It is similar to a thyristor with detached gate. Shockley Diode Symbol The schematic diagram … Read more
An operational amplifier popularly known as op-amp is a DC-coupled high gain electronic voltage amplifier with a differential input and usually a single-ended output. As the name suggests, it is basically an amplifier, whose job is to amplify the input signals. The reason behind it being called as “operational” is that, in early days when … Read more
LED full form is Light Emitting Diode. It is a p-n junction diode that gives off visible light or infrared (invisible) light when forward biased. The working of LED is based on Electroluminence i.e. conversion of electrical energy into light. LED light is emitted due to the large number of recombination of electron and hole. … Read more
An Instrumentation amplifier is a kind of differential amplifier with additional input buffer stages. The addition of input buffer stages makes it easy to match (impedance matching) the amplifier with the preceding stage. In other words, we can say that the differential op-amp circuit providing high input impedances with ease of gain adjustment through the variation … Read more
Amplification It is an operation of an amplifier intended to make a signal stronger by increasing the power of a signal. The amplifier output matches the input signal shape but with a larger amplitude. It may be Linear or nonlinear. Companding It is a technique for compressing and then expanding (or decomposing) an analog or … Read more