Re: Average, RMS and Power Factor made easy!

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Terry Fritz" <twftesla-at-uswest-dot-net>

Hi Darren,

I was using 0 to 1 volt 50% duty cycle square waves.  The 0.707 thing only
applies to nice sine waves.

Cheers,

	Terry



At 11:48 AM 1/17/2001 +1030, you wrote:
>
>
>On Wed, 10 Jan 2001, Tesla list wrote:
>
>> Original poster: "Terry Fritz" <twftesla-at-uswest-dot-net>
>> 
>> However.....  What will the meters say??  The volt meter will read 0.5 VRMS
>> and the current meter will read 0.5 ARMS!!  If you multiply them the power
>> appears to be 0.25 watts.  But, of course, that is not true.
>> 
>
>You slipped up the calculation of RMS values although it won't affect the
>argument. Probably forgot the square root.
>
>Should be 0.707 VRMS and 0.707 ARMS, giving 0.5 W... Assuming 50% duty
>cycle square waves.
>
>Have fun,
>Darren Freeman
>