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oscillators could generate various types of waveforms, i.e., sinusoidal, triangular, etc. Oscillators generating non-analog waveform(sinusoidal, triangular are examples of analog waveforms) ,i.e., square or rectangular waveforms are called multivibrators.
Classically, "multivibrator" term was proposed by the Dutch physicist van der Pol, refers to the multiplicity of harmonics in the spectrum of generated oscillations (in this sense a generator of sinusoidal oscillations could be called a monovibrator).
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Why astable multivibrator called free running oscillator?
An astable multivibrator does not require an input clock, therefore can be described as "free-running" in that its running without a reference.
Why no triggering is used for astable multivibrator?
No triggering is used on an astable multivibrator because it can cause it to become unstable.
What is meant by monostable multivibrator?
A monostable multivibrator is a circuit which produces a single pulse of specified duration in response to each external trigger signal.
What is astable multivibrators?
An astable multivibrator [also known as an oscillator] is a circuit built so that it does not come to rest in one single state but switches between them continuously.
How can you continuously generate a tone for a certain duration?
I would use two 555 timer ICs. Hook the first one up as a monostable multivibrator and the second as an astable multivibrator. The first one sets the length of duration and the second sets the frequency of the tone. Go to your local bookstore and get a copy of "IC Timer Cookbook" by Walter G. Jung. This is an excellent book and will describe the pinouts and methods of assembly.
Why astable multivibrator called free running oscillator?
An astable multivibrator does not require an input clock, therefore can be described as "free-running" in that its running without a reference.
What is the stable state of a multivibrator?
The condition in which the multivibrator may remains indefinitly.
What type waveforms are produced by multivibrator?
A multivibrator produces square or rectangular waveforms.
Why no triggering is used for astable multivibrator?
No triggering is used on an astable multivibrator because it can cause it to become unstable.
Is monostable multivibrator used for wave generation?
how can we modify the monostable multivibrator to obtain triangular wave generator
Why do you use npn transistors in an astable multivibrator?
You can create an astable multivibrator with PNP, NPN, FETs, or even with NOR gates, NAND gates, or NOT gates. In fact the escapement movement in a mechanical watch is a species of astable multivibrator.
Does the output of a monostable multivibrator oscillate?
No, the output of monostable multivibrator does not oscillate. As it has only one stable output we do not get oscillations. We get a square wave as output.
What is meant by monostable multivibrator?
A monostable multivibrator is a circuit which produces a single pulse of specified duration in response to each external trigger signal.
What is another name for RS?
monostable multivibrator
How many state in astable multivibrator has?
no stablestate
Where can you find a 555 timer?
in multivibrator circuits.
How DC is converted to square pulse?
The easiest way to convert the DC Voltage to pulse is simple astable multivibrator. This can be achieved either directly by astable multivibrator ic's or using normal transistor and resistor combination circuits or by using 555 as astable multivibrator.
