Table of Contents
- 1 What does a capacitor do to a square wave?
- 2 What would be the output if the input is a square wave?
- 3 What happens if we increase the capacitor value?
- 4 What is the function of capacitor in the both circuits why a capacitor of higher value is preferable?
- 5 How are the square wave output generated in op-amp?
- 6 When a square wave is applied as input to a differentiating circuit the output will be *?
What does a capacitor do to a square wave?
An ideal square wave has two values: high and low (here Vs and 0), and it switches between them instantaneously. The capacitor will charge when the voltage of the square wave is Vs; the capacitor will discharge when the voltage of the square wave is zero.
What would be the output if the input is a square wave?
Answer: The output voltage is in the form of a spikes corresponding to the rising and falling edges of the square wave and the output voltage is zero when the input is constant.
What will be the output of a square wave is fed to the integrator circuit?
When we integrate the square wave, we will get triangular wave.
What frequency should we set the square wave to in order to see the charging and discharging of the capacitor?
To provide an appropriate time scale for viewing the charge and discharge cycles of the capacitor, the function generator is set to a frequency of 1 kHz.
What happens if we increase the capacitor value?
So if you picture your capacitor as two plates separated by a material that prevents current flowing, the bigger the capacitance, the same voltage held across the plates will result in a greater build up of charge on the plates (imagine that the effective area of the plates is larger).
What is the function of capacitor in the both circuits why a capacitor of higher value is preferable?
A higher value of capacitance is only preferable when filtering power supply outputs to reduce hum. Once this point is reached, higher storage values are not preferred. Any other circuit will not function properly or at all and can actually be seriously damaged it higher value capacitors than recommended are installed.
What is input square wave?
A square wave is a non-sinusoidal periodic waveform in which the amplitude alternates at a steady frequency between fixed minimum and maximum values, with the same duration at minimum and maximum. The ratio of the high period to the total period of a pulse wave is called the duty cycle.
What does a low pass filter do to a square wave?
A low pass filter will eliminates (o reduce in amplitude) a given number of harmonics depending on how the cut-off frequency of the filter is far from the fundamental. If the reduced hamonics are far from the fundamental the signal shape will be close to the original.
How are the square wave output generated in op-amp?
How are the square wave output generated in op-amp? Explanation: Square wave outputs are generated where the op-amp is forced to operate in saturated region, that is, the output of the op-amp is forced to swing repetitively between positive saturation, +Vsat and negative saturation, -Vsat.
When a square wave is applied as input to a differentiating circuit the output will be *?
When input is a square wave: When the input fed to an integrating circuit is a square wave, the output will be a triangular wave as shown in fig. 5. As integration means summation, therefore, output from an integration circuit will be sum of all the input waves at any instant.
What is the effect of changing the capacitance of the capacitor on the discharging time?
If a larger value of capacitance were used with the same value of resistance in the above circuit it would be able to store more charge. As a result, it would take longer to charge up to the supply voltage during charging and longer to lose all its charge when discharging.