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power measurement - RF Cafe Forums

Because of the high maintenance needed to monitor and filter spammers from the RF Cafe Forums, I decided that it would be best to just archive the pages to make all the good information posted in the past available for review. It is unfortunate that the scumbags of the world ruin an otherwise useful venue for people wanting to exchanged useful ideas and views. It seems that the more formal social media like Facebook pretty much dominate this kind of venue anymore anyway, so if you would like to post something on RF Cafe's Facebook page, please do.

Below are all of the forum threads, including all the responses to the original posts.


controlman
Post subject: power measurement
Unread postPosted: Sat May 08, 2004 4:05 am
Offline
Lieutenant

Joined: Fri May 07, 2004 6:22 am
Posts: 2
Location: UK
Hi everyone!
I found your notes on the internet very
useful. I was wondering if I may ask a small
question regarding the calculation of real
power dissipation from a simple R & L
components circuit connected in series and
powered by a an AC square wave. The
measurements I have is:

Power supply DC Voltage :V_dc
Power supply DC current :I_dc
RMS current through the circuit :I_rms

I simply wanted to know, why is the "real power " equal to V_dc*I_dc and
not V_dc*I_rms?

Thank you very much for your time and guidance.

Cheers!


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Profile

I am regreted
Post subject:
Unread postPosted: Thu Jun 17, 2004 11:22 am

A good question. I can't reply, but I am considering to give a try.


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guest
Post subject:
Unread postPosted: Wed Jun 30, 2004 8:08 pm

the thing is why would you say the circuit is powered by an AC square wave when you are using a DC power supply?



Posted  11/12/2012
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