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Sine Waves


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Everyone

A Sine Wave is an Analogue Signal Containing Only One Frequency

Voltage Time Graph

A Typical Sine Wave

Current Time Graph

The current time graph has the same shape as the one above.

Peak Value

The peak value is the maximum voltage or current reached at the highest or lowest point in the wave. It is measured from the centre line.

Period

The period is the time for one complete cycle of the wave to pass.

Frequency

The frequency is the number of cycles passing in one second.

Frequency = 1 / Period                Period = 1 / Frequency

RMS Calculations

Vpeak = 1.4 x Vrms                      Vrms = 0.7 x Vpeak

 

 

 

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