Ripple Definition and 70 Threads

Hi Folks, I tried designing a Dickson's charge pump. Here are the below observations: For a voltage doubler: When W=240nm, charge pump capacitance= load capacitance= 1p F, load resistance= 10M ohm, Switching frequency=500k Hz, Vin=2V Results: Vout= 4.3772V, settling time= 50u s...

Hello fellow physicists! I have a lab about rectifying and filtering circuits and I was asked to calculated the ripple factor using an oscilloscope. I managed to get the ripple waveform shown on the oscilloscope, but the thing is there are so many values to read off I have no idea which to...

Hi I'm having trouble with coming up with a minimal solution to this problem: create a 8 bit adder/sub using only one 4 bit ripple carry adder and muxes. This is what I'm thinking but I don't know how to make it any bit simpler: We can calculate the sum of first 4 bits using the ripple carry...

http://img683.imageshack.us/img683/5329/unledtw.png So its basically a power supply with a voltage regulator LM317T at the end. The question asked to find the voltage ripple across the capacitor. So I basically solved the peak voltage found which would be 12V * SQRT(2) = 17 volts...

Hi, I am trying to, roughly, calculate the current ripple associated with a 12-pulse power supply. I have managed to workout an (idealised) voltage ripple from the rectified signal and I heard that there is a way to work out the current ripple from that. I'm a physicist not an electrical...

Homework Statement A capacitor of capacitance C is connected in parallel with a resistor of R ohms impedance. Calculate the size of the peak to peak voltage of the ripple produced relative to the peak output voltage Vp. Homework Equations Q=CV dQ/dt = I V=IR Vc=Vpe-t/RC (am i allowed to use...

what is the difference between ripple and harmonics?? particularly please explain harmonics... how it actually is harmfull .. and what is the reason of its origin?

In a ripple tank experiment, students generate water waves at a speed of 4.0 cm/s and a wavelength of 0.5 cm. If the waves are refracted into shallower water where their speed decreases to 3.0 cm/s, what is their new wavelength? What would the formula be for this question?

Homework Statement I'm working on this problem but everytime I tried to walk through my answer it doesn't seem right. I wanted to built a ripple counter, up counter with mod 13 using D flip flop. Homework Equations present state ABCD - 0000-->1101 next state ABCD - 0001-->0000...

Ripple deSitter universe---Randono cannonball analog Look at Figure 2 in this paper (scroll to page 9 of the PDF download) http://arxiv.org/abs/0805.2955 the size of the universe ripples down to a state of maximum concentration and then re-expands, again in quasi-stepwise ripples. What...

Hello All, glad to be a part of this elite community, i have been following the forum threads for quite few days now, i am really interested to hear from Mr.Berkeman. here is my problem: we are facing a problem at the rectified output of our power supply, we have used a bridge rectifier to...

Homework Statement Create a mod-11 ripple counter using Flip flops and standard logic gates. Only usable flipflops are T,D, and JK. I've used T.Homework Equations Using Quartus II simulation softwareThe Attempt at a Solution I have the block diagram all done and the simulation. Everything...

Hello I'm a beginner (Second Semester) at Electronics Engineering. In the attachment is the image of the filter rectifier circuit that I am analyzing. My professor has given us questions and their solutions but for my full wave filter rectifier analysis the numbers are not the same. The...

Here is the problem: If a pebbel is tossed into a pond, a circular wave pulse propagates outward from the disturbance. If you look closely you will see a fine structure in the pulse consisting of surface ripples moving inward though the circular disturbance. Explain this effect in terms of...

Do you know if there is any name for the equation that describes the shape of a ripple wave? An example of that kind of wave can be found at http://en.wikipedia.org/wiki/Image:Elliptical_trajectory_on_ripples.png. My question is: what would you call the curve traced by the ball rolling along...

Why are ripples on water only circular in shape? Why arent they of the shape of the object dropped in them? Like triangular or square?

When we demonstrate diffraction in a ripple tank, why does shallower water slow the passage of the water wave down? Also, are there any other ways to demonstrate when refraction happens without light nor water waves? Thanks. :smile:

alright i have an understanding that deja vu is a ripple in space-time because of maybe a star going super nova or whatever, is that a creditable claim?

In the space - time ripple - nipple the space and the time are related i.e. for every position in one coordinate system there is corresponding time. I believe that even statically the space - time ripple - nipple is affected by contraction and dilation. But how are space and time actually...