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CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. Copyright © , Texas Instruments Incorporated. The basic building block of the circuit made around a very well known IC CD which is a hex inverter. This can be constructed, with the. the inverter CMOS digital IC datasheet is IC Hex Inverting Buffer IC, to design the Square wave oscillator generator circuit diagram.

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SPI Module of Arduino. Skip cr4049 main content. The other pin is connected to ground. Pls i will need a help in building my own inverter. Cupboard Lighting Circuit Circuit that use to illuminate your cupboard or other such dark places have significant application because main connection is not possible in those areas.

CD4049 – Hex Buffer, Inverter

When an electric signal is applied to the input pin of vd4049, it generates sound waves. Touch switch using monostable mode of timer IC. The IC consists of six NOT gate inside it and having a high input supply voltage with a maximum current rating of 1mA at 18v.

TL — Programmable Reference Voltage. Light detector using LDR and astable mode of timer. We can use this IC to make a square wave oscillator with less energy consumption. It can also be useful in making various projects like simple LED torch light, Automatic Street light, magic eye, and automatic guest detector at home door.

Choosing Battery for Robots. Working of this magic eye circuit is very simple as we know LDR has a characteristic that its value cf4049 resistance depends on the amount of light falling on it means it shows very high kc of about 1 Mega ohms in darkness but a resistance of few kilo ohms in light here we cd409 this phenomenon to make magic eye. It also used for the conversion of high logic levels to low.


In the absence of light, LDR exhibits a resistance of the order of mega-ohms which decreases to few It can also used as a prevention measure against vandalism. The resistance decreases as the intensity of incident cx4049 increases, and vice versa. I have the circuit cs4049 i need for efficient pulse generator with a variable resistor to control the trigger speed to the thyristor gate.

Its resistance is given by the ratio of voltage applied across its terminals to the current passing through it. Learn how your comment data is processed.

CD – Hex Buffer, Inverter

Metronome using astable mode of timer IC. Submitted by webmaster on 26 Id To sum up when the switch is pressed and released, the lamp lights up. The 2D dimension will help you in using this IC on breadboard or perf board. But as soon as shadow falls on LDR, its resistance will go high. Michael chiemeka 17 Sep Reply. The Maximum power supply must not exceed 18 volts.

Magic Eye Circuit Using 4049 IC

Previous Post Basic pulse generator using op amp IC This under cupboard lighting circuit will be a great alternative for traditional torches and also proves to be cost effective among all other lighting systems. A loudspeaker or “speaker” is a transducer that converts electrical energy into acoustical energy.

The IC is having high current sink as the input voltage the increase the output current sink value will increase, at 15v the current sink value is 26mA. Now the capacitor C1 has already started discharging through resistor R1 and the moment voltage across it decreases to a value that is treated as LOW state, the voltage at the point where four inverters are connected parallel becomes high thus switching off the lamp. When light is falling on LDR, its resistance gets very low and as a result input at pin 14 will be high.


Circuit that use to illuminate your cupboard or other such dark places have significant application because main connection is not possible in those areas.

The input-signal high level VIH can exceed the VCC supply voltage when these devices are used for logic-level conversions.

IC Hex inverter Datasheet – Square wave oscillator

Latest posts by Frank Donald see all. This site uses Akismet to reduce spam. Video games, blogging and programming are the things he loves most. Magic eye can be used as automatic guest indicator in your home. In this 1 is for supply voltage and pin is connected to ground and pin 13 and 16 are unused pin.

And for a larger lamp current, a transistor switch should be used in place of parallel connected inverters. The square wave oscillator circuit consist one resistor and capacitor and IC with it. Quote and Order boards in minutes on:


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