Dont understand electric term (waves)?

Question

Dont understand electric term (waves)?

Answer 1

Well i could if i could draw it to you...

But basically a sinusoidal waveform is a curved up-down wave, like the waves you would see in water.

Where as a transient waveform is like the bars on a bar chart, but as a wave. (sorry if that doesn't make sense).

Answer 2

Normally the electric current is alternating in a sinusoidal way. This means that the shape of a plot of its voltage against time follows that of a sine wave.



The electronic device (WWET) modifies this shape by taking in some of the current at one part of the cycle and pushing it out at a different part, and the result is that the shape of the wave becomes rectangular instead of hump-shaped. First the rectangle is positive above the line of zero voltage and then it is negative below this line.



I don't know why it is called transient, since the wave normally is in a continuous state of change.

Answer 3

Oscillation... anything that oscillates forms a wave over time.



The shape of the wave determines what we call it. A sine wave forms the shape that follows y = A sin(wt) where A is the amplitude, w = 2 pi f is the angular velocity of the sine wave, and t is the time. If you draw y vs t for this, you see a sine wave emerge on your graph paper. Use f = 60 cycles/sec (Herz) to see what it would look like in the U.S. that uses 60 Herz AC.



The rectangular wave, also named for its shape over time, will look something like a rectangle above zero followed by one below zero, then repeating with one above, then below... and so on. We can actually use transformations to convert the sine wave into a reasonable approximation of a square wave. And that's what converters do.