Average value Root mean square value Rectified mean Crest factor Form Factor https://www.youtube.com/watch?v=dkrpVVzPYNw

1. • Average value
• Root mean
square value
• Rectified mean
• Crest factor
• Form Factor

3. Average value
The average value of time varying voltage waveform
𝑣 𝑎𝑣𝑒 =
1
𝑇
0
𝑇
𝑉 𝑡 ⅆ𝑡
•v(t) is the instantaneous voltage
•T is the period
•𝑣 𝑎𝑣𝑒 = 𝑣𝜌 × 0.637

4. Root mean square(r.m.s.) value
The root mean square value of time varying voltage
𝑣 𝑅𝑚𝑠=
1
𝑇 0
𝑇
𝑣2
𝑡 𝑑𝑡
•v(t) is the instantaneous voltage
•T is the period
•𝑣 𝑅𝑚𝑠=𝑣𝜌 × 0.707

5. Rectified mean
Rectified mean or mean absolute deviation (or a.c. average)
𝑣 𝑚𝑎𝑑 =
1
𝑇
0
𝑇
𝑣 𝑡 ⅆ𝑡
•v(t) is the instantaneous voltage
•T is the period

6. Crest factor
• Crest factor is the ratio of peak value to r.m.s value.
• Crest factor is also called peak factor or amplitude factor.
• It is 1.414 for sine wave.

7. Form Factor
• Form factor is the ratio of r.m.s. value to average value.
• It is 1.11 for sine wave.