Triangle Wave Generator using 555 Timer

Triangle wave generation using 555 timer

In this project, we will see how to make a triangle wave generator using the 555 timer IC. 555 timer is a very versatile delay and square wave generator IC. It one of the most used ic in electronics projects. You might have used or seen a waveform generator. It is an instrument that can generate various types of waveforms like a square wave, triangle wave Sine wave ramp signal, and many other waveforms. You can also generate triangle waves using opamp but the circuit becomes a little complex. Here…

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Triangle Wave Generator using OPAMP

Triangle wave generator using opamp

In this article, we will discuss how we can make a triangle wave generator using opamp. So let’s start discussing how to make a triangle wave generator. A triangle wave is consists of a constantly rising and falling slope. An opamp integrator gives a triangle wave. If you are an electronics student then you might have come across the term function generator, sine wave, square wave, triangle wave sawtooth wave, and many more. A function generator is an instrument which is used to generate various types of the waveform of…

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7490 Decade Counter Circuit (Mod-10) Designing

7490 mod 10 counter

IC 7490 is Asynchronous mod-10 Counter IC. In this article, we are going to study IC 7490 Decade Counter Circuit. IC 7490 is also known as BCD Counter, Decade Counter, and mod-10. These names are given based on the Functionality and Working Principle of IC 7490.  Counter Designing using 7490 IC: In the discussion of Counter ICs, some basic terms will be used a lot. That’s why we need to know some basic terminology while Designing any of Counter. Asynchronous Counters :  In Counters ICs there are so many Clock Inputs that are present…

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Automatic street light circuit

Automatic Street Light Circuit

Have you thought about who turns on and off those street lights on the road? Turning on and off those street lights may be a boring task. We can make this process automatic by a simple automatic street light circuit. Also, you can automate your home lighting, lights in the garden, and other outside places automatically by using this simple automatic light circuit. Let’s see how to make automatic street light with circuit diagram. This automatic street light circuit will automatically turn ON and OFF the lights. It will not…

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MQ2 Gas Sensor Circuit Diagram and it’s Working

MQ2 gas sensor Circuit Diagram

In this project, we will use the MQ2 Gas sensor circuit to detect Methane, Butane, LPG, Smoke which is released into the environment at the time of the gas leak. MQ2 Gas sensor circuit diagram is as shown in the figure. MQ2 gas sensor can sense butane, LPG, Smoke, Alcohol, Propane, Hydrogen, Methane and Carbon Monoxide. Gas leakage is a very dangerous situation it can cause breathing problems, headache, and other physical problems. A gas leak can causes really very big fire, blasts, loss of lives, and big property damage…

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musical doorbell circuit diagram with 16 Tune

16 Tune Doorbell circuit

The musical 16 Tune musical doorbell circuit diagram described in this article produces a different musical tune each time the bell push button is pressed. The bell produces a total of 16 tunes which follows successively. The circuit is based on a CIC4822 LSI read only memory chip which contains a complete marked ROM, envelop, preamp etc., and requires just four external components besides the IC. The two resistors and the capacitor complete the oscillator circuitry and set the frequency. The transistor provides amplification. The can work off voltages up…

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Voltage Comparator Circuit using OPAMPs

opamp comparator circuit

A voltage comparator is a circuit which compares the voltages at its input terminals and switches the output to either high or low depending upon which input was high. making a voltage comparator using transistors and other components is quite difficult and makes no sense because we have OPAMPs. We can use 741, LM311, LM324, LM393 opamps to make a voltage comparator circuit. op-amp comparator circuit:     An opamp can be easily configured to act as a voltage comparator. A voltage comparator based on opamp is shown in the…

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Voltage to current converter OPAMP circuit

voltage controlled current source

Voltage to current converter is mostly used to transmit signals over a long distance to a control circuit. The most important reason behind it is that while traveling a long distance due to the internal resistance of the wire the voltage gets reduces. if there is a very small signal then it may get lost. But as we know that current never reduces while traveling a long distance due to Kirchhoff’s current law KCL. That’s why we use current to transmit signals over long distances through wires. Hence the voltage…

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Current to Voltage Converter(I to V)

current to voltage converter

A current to voltage converter circuit produces output voltage with respect to input current. An I to V converter is used to convert varying current into equivalent output voltage.  This circuit is very much useful when the measuring instrument can measure only voltages not the current and we want to measure the output current. The best example is measuring current through a circuit using Arduino. Here the Arduino can measure only analog voltage so we need a current to voltage converter to do that. such circuits are used in Data…

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Gunn diode working principle VI characteristics & applications

Gunn diode

Gunn diode operates on the Gunn effect which is named after its inventor J.B. Gunn. He discovered the periodic variation of current in a GaAs (gallium arsenide) rod in 1963. The microwave device that operates on the principle of transfer of electrons is called as Gunn diode. This is one of the diodes used as a microwave detector. It uses the avalanche and transit time properties of semiconductors. The mechanism of transferred electrons is related to the conduction band electrons. In the case of certain semiconductor devices, the conduction band…

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