How to calculate RMS value for current square wave?

Question

How do I calculate the RMS value for the current waveform during a transient event like the picture below?

Assuming:
I_x = 6 A
I_y = 38 A
duty cycle = 38%
frequency = unknown

My goal is to know what the behavior of the voltage regulator of a CPU (AMD/Intel) is under transient load.

See ac-effect-value for an answer to a similar question. – Transistor Jan 23 '20 at 07:23 — Transistor, Jan 23 '20 at 07:23
Does this answer your question? AC Effect Value – Huisman Jan 23 '20 at 07:40 — Huisman, Jan 23 '20 at 07:40

score 3 · Answer 1 · answered Jan 23 '20 at 08:00

3

root of mean of squared current, thus:

$$RMS= \sqrt{ 0.38 I_x^2 + 0.62 I_y^2 } $$

answered Jan 23 '20 at 08:00

1 Answers1