0
Why does a Schmitt trigger circuit form a square wave at its output for any input wave?
Wiki User
∙ 16y ago
A Schmitt trigger is a comparitor circuit that is basically an on-off switch. It's either on or off (which we call high or low). Once a threshold at the input is exceeded, it turns on, or goes high. Below the threshold, it turns off, or goes low. Drive a Schmitt trigger with whatever you want. It responds in only two ways; high or low. It has no other output states.
Wiki User
∙ 16y ago
Add your answer:
Earn +20 pts
How schmitt trigger and square wave generator differ in their output waveform?
Yes,schmitt trigger has upper and lower threshold voltage for the reason of noise protection while square wave generator doesn't have these properties.
What is the three types of wave forms in trigger circuit of oscilloscope?
The three waveforms in the trigger circuit of an oscilloscope are the sine wave, square wave and saw tooth wave.
What is the output of AND gate if sine wave is input?
I assume the sine wave input is pure AC, meaning this signal is positive, and negative, as would come from a transformer winding. To not damage the fragile input to the AND gate, you should have a limit resister, say 1K ohm to 10 K ohm. Then the output of the AND gate will be a very clean square wave. It will be in phase with the input sine wave. You can add a small capacitor from the AND gate input to tr ground. IMPROVEMENT: The best kind of gate to use for this circuit is called a "Schmitt Trigger", which will really clean up the signal. It is only available as inverting, 1, 4, or 6 per package. You can easily use an inverting NAND, and run it through 2 gates to get your phase back to what you want. So for what you are doing, use a 10K input, to a 100 pF cap to ground, going into one section of a 74HC14 (6 inverters in one package), and then go through another section, if you need to get back to 0 degree phase shift. With the 2 inverters in a row, you can have 2 phases available. Or, you can add another R-C delay between the 2 sections, and make the phase shift to whatever you need. 90 degrees, no problem. With 6 inverters, you can phase shift on and on, and make all kinds of poly phase outputs. MORE FUN: With the Schmitt gate, you only need an R and a C from the output back to the input, and you will make a very stable Square wave generator. With a single diode, you can make a "one-shot" circuit, for constant pulse width. You can even make a PWM circuit, by DC biasing the input.
How do you produce delay in square wave signal?
It depends on how much delay you want, and also on the frequency. If you just need a few nanoseconds, run the square wave through an even number of series connected inverters. If you need 180 degrees, run it through one inverter. If you need something else, you may need a more complex solution, ranging from an RC coupled schmitt trigger to a digital phase locked loop.
Can a low pass filter be used as an integrator?
When a low pass filter is used with a sine wave input, the output is also a sine wave. The output will be reduced in amplitude and phase shifted when the frequency is high, but it is still a sine wave. This is not the case for square or triangular wave inputs. For non-sinusoidal inputs the circuit is called an integrator.
How schmitt trigger and square wave generator differ in their output waveform?
Yes,schmitt trigger has upper and lower threshold voltage for the reason of noise protection while square wave generator doesn't have these properties.
What are the application of Schmitt trigger?
The application of Schmitt Trigger is as follows: 1.squaring circuit 2.sine-to-square comparater 3.amplitude comparater 4. as flip flops
What is a schmitt trigger?
A COMPARATOR CIRCUIT WHICH CONVERTS ANY ARBITRARY SIGNAL(SLOPE!=1) TO SQUARE WAVEFORM IN SHORT A AMPLITUDE COMPARATOR
What is the application of schmitt trigger?
Square wave generator
Schmitt trigger convert which wave form?
Schmitt trigger converts any type of waveform (such as sine,triangular.........)to square wave.So it is called Square wave converter.
What can be done to make the clock of 555 timer IC run faster?
Nanosecond TimerDoubling the timing Rate of NE555 indefinitely(1) The square pulse waveform of NE555 is differentiated to yield double the speed.The differentiator circuit generates two pulses for each square pulse, one on the rise, second of the fall of the pulse.(2) The output of the differentiator is rectified by diodes, amplified, fed to Schmitt Trigger circuit.The Schmitt Trigger circuit, now, has double the rate of NE555 with square pulses.(3) The output of the Schmitt Trigger is differentiated, as in step (1).Theoretically, we could continue the doubling of timing rate indefinitely.Mohamed F. El-Hewiehttp://www.amazon.com/Nuclear-Physics-Personal-Atomic-Molecular/dp/1463795092/ref=sr_1_2?s=books&ie=UTF8&qid=1337709617&sr=1-2
Explain how a square wave is produced from a sinwave?
Use a Schmitt trigger. You can buy one of these as an I.C.
What is conclusion of schmitt trigger?
It is an inverting comparator with a positive feedback, can convert an irregular shaped waveform to square waveform. it is also known as squaring circuit. sudhanshu kumar siliguri institute of tech. ece(2nd year)
What is the three types of wave forms in trigger circuit of oscilloscope?
The three waveforms in the trigger circuit of an oscilloscope are the sine wave, square wave and saw tooth wave.
What will be the output when a square wave is the input of the differentiater?
If you use a square wave as input to an integrator circuit, the output will be a triangle wave.
How does a schmitt trigger work?
The schmitt trigger is an electronic comparator that has a slightly different voltage (or current) threshold for turning on than it does for turning off. This means that, once it turns on, it sticks on until the input signal decreases somewhat below the original turn-on point, and vice versa, once it turns off, it sticks off until the input signal increases somewhat above the original turn-off point. This is called hysteresis, and it effectively debounces the input signal and prevents short cycling.
Why we get triangular wave as output when we apply square wave as input?
because of charging and discharging of capacitor present in the circuit. beacause capacitor charges exponentially. akshay dabhane
