power measurement - RF Cafe Forums

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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