tail cap amp measurement

• Feb 1, 2013

• #1

cheech226

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if i'm using a buck driver will the measured current across the battery neg and case be lower than the actual current drawn by the diode? seems this would be so.

 

• Feb 1, 2013

• #2

awillis2589

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I believe this is correct. With linear drivers you would be able to see current draw as current output.

 

• Feb 1, 2013

• #3

Blord

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That is right, buck driver are more efficient than a linear drivers. The buck driver converts the excess voltage into current.

 

• Feb 1, 2013

• #4

cheech226

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thanks, i know it works the other way with boosts. i just did a measurement of an m140 build and it was much less than i thought it should be.