Question

Determine an expression for the waveform(see attachment)

Answer 1

idk what that is

Answer 2

It is a sawtooth waveform quite common in electronic some devices

Answer 3

The e(t) is the voltage amplitude for time (t) The equation is beyond my pay grade. The period is 4. Other than that I can't help. Oh yes the peak is 4 volts.

Answer 4

Thank you radar !!!

Answer 5

Sorry I couldn't do more.

Answer 6

Polpak can you illuminate the situation?

Answer 7

see my question.....

Answer 8

need to brush up on this stuff. This is all I can think of. unit step function is u(t). u(t-4) would be a step function at t=4. A 4-wide pulse would be u(t) - u(t-4). A single sawtooth pulse would be (4 - 2t)(u(t) - u(t-4)). Then you need to simplify and make a sum that creates all the pulses. :-)

Answer 9

Sorry, I went to get some food.. lemme take a look

Answer 10

I believe it's the first one..

At \(t\in [0,4)\) we have e = 4-2t
At \(t \in [4,8)\) we have e = 4-2t + 8 = 12-2t
At \(t \in [8,12)\) we have e = 4-2t + 16 = 20 - 2t

etc.

Those look like they fit your curve.

We can see that it's not 2 since that function is strictly increasing with t and wouldn't have a negative slope.

We can see that it's not 3 because that function is also strictly increasing with t.

We can see that it's not 4 because after 2, the function has a negative slope, but it's -1 not -2 which isn't steep enough.

Answer 11

Thank you !!!!

Answer 12

Certainly!