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Overunity Machines Forum



Using a resistor to messure power consumption of a circuit.

Started by tinman, September 12, 2014, 02:26:22 PM

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poynt99

#10
September 15, 2014, 10:22:45 PM
question everything, double check the facts, THEN decide your path...

Simple Cheap Low Power Oscillators V2.0
http://www.overunity.com/index.php?action=downloads;sa=view;down=248
Towards Realizing the TPU V1.4: http://www.overunity.com/index.php?action=downloads;sa=view;down=217
Capacitor Energy Transfer Experiments V1.0: http://www.overunity.com/index.php?action=downloads;sa=view;down=209

poynt99

#12
September 15, 2014, 10:39:44 PM
I don't think OUR is blocked to read, is it? Let me know if it is.

QuoteHere's what we can do manually.

Eyeballing the current wave form, an equivalent pulse wave would be about 4mV (1.25mA) peak. Now we can simply multiply it out:

1.25mAp x 6Vp x 0.38 = 2.85mW. Add our 78uW for the 50 Ohm, and we have 2.93mW for Pin.

WARNING!

Keep in mind that scopes exhibit terrible accuracy (and resolution or precision) down in these low millivolt levels. The offsets in the inputs is often 5mV (or more), so there could be 100% or more error here.
question everything, double check the facts, THEN decide your path...

Simple Cheap Low Power Oscillators V2.0
http://www.overunity.com/index.php?action=downloads;sa=view;down=248
Towards Realizing the TPU V1.4: http://www.overunity.com/index.php?action=downloads;sa=view;down=217
Capacitor Energy Transfer Experiments V1.0: http://www.overunity.com/index.php?action=downloads;sa=view;down=209

MarkE

#13
September 15, 2014, 11:06:54 PM
Quote from: poynt99 on September 15, 2014, 10:39:44 PM
I don't think OUR is blocked to read, is it? Let me know if it is.

QuoteWarning!
The topic or board you are looking for appears to be either missing or off limits to you.
Please login below or register an account with OverUnity Research.

gyulasun

#14
September 16, 2014, 05:59:23 AM
Quote from: poynt99 on September 15, 2014, 10:22:45 PM
Mark,

This is what I did.

Hi poynt99,

I also have problem to read your post at your above link.  After login I receive this message :

" An error has occured!  The topic or board you are looking for appears to be either missing or off limits to you."

Why is that I wonder?

Gyula
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