1 ohm rresistorrrr expeiment

• Nov 11, 2007

• #1

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toked323

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i just wanted tO share somE info , i used a 1.2 ohm resistorr with 2 AAA bats and it came out with a steady 310ma at 2.7 volts`, and 205ma with a 2.7ohm resistor

 

• Nov 11, 2007

• #2

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Zarniwoop

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This is with a GB diode?
Keep in mind if you just use a resistor, the current you get will be totally different with a different battery type, will drop as the battery discharges, and will change with temperature.

 

• Nov 11, 2007

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a_pyro_is

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Even cells from the same lot could have different inital voltages and different discharge curves.

 

• Nov 11, 2007

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toked323

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this was a resistor only on a gb diode

 

• Nov 11, 2007

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Zarniwoop

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I hope you didn't run it long at 310mA!

 

• Nov 11, 2007

• #6

Gazoo

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a_pyro_is said:

Even cells from the same lot could have different inital voltages and different discharge curves.

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Exactly...I will never use this method again for that very reason. I like to run my diodes with current limiting that stays constant no matter what the input voltage to the driver is.