transistor
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Simple MOSFET Switching Circuit – How to turn on / turn off N-Channel and P-channel MOSFETs A MOSFET is a type of transistor that uses an electric field to control current flow, and is widely used in switching and amplification circuits. MOSFET stands for Metal Oxide Semiconductor Field Effect Transistor, which has a gate. For simplicity, you can imagine this gate like a water tap. You rotate the tap counter-clockwise the water starts flowing out of the tap.… |
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Understanding the Difference Between BJT and MOSFET and How to Select the Right One for Your Designs If you are exploring the world of electronics, and you want to know more about the Transistors and MOSFETs for your upcoming brilliant project, you are at the right place. In this article, we will discuss the basics of BJTs, Transistors, and MOSFETs. Before semiconductors (particularly transistors), the only devices available for signal amplification and switching were… |
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Building a Wailing Siren Circuit using a 555 Timer IC If you are an electronics hobbyist then you must have heard about the 555 timer IC and its 3 popular circuits viz. astable multivibrator, bistable multivibrator, and monostable multivibrator. Apart from these, there are other popular circuits like 555 timer IC as a switch and police hooter that we have talked about previously. Adding to the list,… |
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Zero-Crossing Detector Circuit A zero-crossing detector circuit is a useful application of an op-amp as a comparator. This electronic circuit precisely identifies when an AC waveform transitions through zero voltage, tracking the changes in the sine waveform from positive to negative or vice versa while it crosses zero voltage. It can also be used as a square wave generator. They have many… |
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Programmable Gain Amplifier using MOSFET and Transistor In the measurement industry, a very crucial functional block is a Programmable Gain Amplifier (PGA). If you are an electronic enthusiast or a college student, you have probably seen a multimeter or oscilloscope measuring very small voltages very preciously because the circuit has a built-in PGA alongside a powerful ADC that helps with the precise measurement process. … |
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Impedance Matching Filter Circuit Design – LC, L and PI Filters In the previous article, we discussed the basics of impedance matching and how to use an impedance matching transformer. Apart from using an impedance matching transformer, designers can also use Impedance Filter circuits at the output of an RF amplifier which can double up as a filtering circuit and also as an impedance matching circuit. There are many types of filter… |
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High Power High Efficiency Buck Converter Circuit using TL494 A buck converter circuit (step-down converter) is a DC-to-DC switching converter that steps down voltage while maintaining a constant power balance. The main feature of a buck converter is efficiency, which means that with a buck converter on board, we can expect extended battery life, reduced heat, smaller size, and improved efficiency. We previously made a few simple Buck… |
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Stereo Audio Pre-Amplifier Circuit with Bass and Treble Control using Transistors Often times, we need to control bass, treble, and volume of our audio signal before passing it through amplification stages to prevent sound distortion. The circuit that amplifies the audio signal before it enters the main speaker amplifier is called an Audio Preamplifier. The use of an audio pre-amplifier ensures good audio quality and provides options to modify our sound… |
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Build Your Own Guitar Distortion Pedal Circuit Who does not like the rumbling tone of a distorted electric guitar? It is a key part of many important genres of music, especially in blues and rock music genres and is also frequently used in hard rock, metal or the punk music genre. In this project, we will build a basic distortion pedal for guitars using a simple circuit. You can also check out the Arduino Guitar Tuner Circuit if you are… |
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Bootstrap Sweep Circuit using Transistors Anyone who deals with electronics will have come across waveform generator circuits like rectangular waveform generator, square wave generator, pulse wave generator, etc. Similarly, Bootstrap Sweep Circuit is a sawtooth waveform generator. Generally, the Bootstrap Sweep circuit is also called as Bootstrap Time Based generator or Bootstrap Sweep Generator. … |
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Designing NOT Gate using Transistors An Integrated Circuit or IC is a combination of many small circuits in a small package that together performs a common task. For example, an Operational Amplifier or 555 Timer IC is built by a combination of many Transistors, Flip-Flops, Logic Gates and other combinational digital circuits. Similarly, a Flip-Flop can be built by using a… |
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Designing OR Gate using Transistor As many of us know an Integrated Circuit or IC is a combination of many small circuits in a small package which together performs a task. Like an Operational Amplifier or 555 Timer IC is built by a combination of many Transistors, Flip-Flops, Logic Gates and other combinational digital circuits. Similarly a Flip-Flop can be built by using a combination of Logic Gates and the… |
