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Go Back   Laser Pointers > Lasers > Drivers, Test-load, Power Supply, & Batteries



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Old 02-04-2012, 10:10 PM   #1
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Default test load question

i am the proud owner of one of jufran88's test loads and i've noticed with some drivers, switching the number of diodes say from 3 to 6 makes no difference in the volts i read across the resistor. i'm not sure why...
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Old 02-04-2012, 11:30 PM   #2
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Default Re: test load question

That must be a boost driver. It will boost the voltage in order to met the current setting.
The driver is capable to overcome the forward voltage of the diodes. 3 or 6 diodes makes no difference ( to the driver maximum voltage limit of course ).
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Old 02-12-2012, 06:39 AM   #3
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Default Re: test load question

Yes, hence the constant currentz!
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