Op-amp and transistor are used according to your need. Though op-amp is better for amplifying gain, they are expensive. As the op-amp amplifier is made of different types of transistors. So, in many cases, you can use a transistor instead of the op-amp. The transistor is cheap compared to the op-amp. What is the difference between an op-amp and transistor? The … [Read more...] about Op-Amp Vs Transistor | Major Distinction
Using Op-Amp
PWM and Triangular Wave Generators | Circuit and Simulation
You may be already aware of the PWM and triangular wave generator. There are different kinds of waves such as sine waves, square waves, and triangle waves. Triangle waves are commonly found and used in audio production, and they are a common waveform source on synthesizers. On the other hand, pulse width modulation (PWM) is a method of changing the duration of a pulse … [Read more...] about PWM and Triangular Wave Generators | Circuit and Simulation
Amplifier Circuits Using Op-amp Inverting, Non-Inverting and MOSFET
You may already know that Amplifier circuits are two-port electronic circuits that receive electric power from a power supply and increase the amplitude of the signal at its output in regular terms. But do you know how to make amplifier circuits using Op-amp and MOSFET or how do they work? Inverting amplifiers are one of the most popular operational amplifier circuits that … [Read more...] about Amplifier Circuits Using Op-amp Inverting, Non-Inverting and MOSFET
Low Pass Filter | Integrator Circuit Using Op Amp 741
Here we are opening the door to a very wide range of useful and exciting applications of the opamp. Here we are discussing an opamp RC circuit named as opamp integrator circuit. This circuit simply performs the integration of the input waveform. Circuit Diagram of Low Pass Filter Components Required Working on Integrator Circuit Design Take input frequency … [Read more...] about Low Pass Filter | Integrator Circuit Using Op Amp 741
Automatic Temperature Controlled Fan Circuit Using Thermistor
This is a simple automatic temperature-controlled fan circuit using an NTC thermistor. The main components of this temp control fan circuit are a negative temperature coefficient thermistor (NTC) which detects the temperature, a comparator which is used to compare the preset temperature value, and a relay circuit to drive the fan. The power supply … [Read more...] about Automatic Temperature Controlled Fan Circuit Using Thermistor