## TVs & Home Theaters forum

General discussion

# power conversion

by krishk24 / April 6, 2005 12:02 PM PDT

How do I convert the peak power to RMS power. Lets say my system can produce 1000 W PEAK power- how do i convert it to RMS power. Lets assume R as 8 ohms.I do know how to convert peak voltage to RMS voltage. so going by what I know:
1) 1000 W corresponds to 89.4 V peak power aprrox
2) 89.4 V corresponds to 63.25 Vrms
3) Doing Vrms^2/R the RMS power is close to 500 W.

is this calculation right? let me know.

thanks guys
Kris

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I may be wrong, but...
by Art / April 6, 2005 4:42 PM PDT

The peak power (1000w.) is reference to music peak power (whatever that mean) doesn't have anything to do with a perfect sinusoinal wave.

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Re:power conversion
by krishk24 / April 7, 2005 8:47 AM PDT
In reply to: I may be wrong, but...

Well any waveform can be represented as summation of infinitely small sinusoids. Sine waves are the most basic waveforms that characterize different electrical equipment. That is why I assumed sinewaves while doing the conversion.

let me know
cheers
Kris

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Take a look at this example.
by Art / April 7, 2005 5:10 PM PDT
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