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GDuP @ 350mA?

datiLED

Flashlight Enthusiast
Joined
May 9, 2006
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2,022
Location
Atlanta, GA
I would like to mod one of my GDuP boards to output 350mA on high, as opposed to the stock setting of 700mA. What value resistor would I need to alter this? I see a 0.10 Ohm current sense resistor on the board... Would I need to change this to a 0.20 Ohm, or is there another resistor involved?

Thanks!
 

Blindasabat

Flashlight Enthusiast
Joined
Jan 24, 2006
Messages
2,204
Location
Michigan
Sounds about right based on what I have seen on SS regarding boards & resistors for setting levels. If there is another place for a second resistor, you might be able to add a second 0.1.

But don't take my word for it. I am used to DD everything!
 

darkzero

Flashaholic* ,
Joined
Oct 7, 2003
Messages
4,459
Location
SoCal
.2 sounds about right assuming the sense resistor is for high. Measure the voltage across the sense resistor & see if you get around .07v?
 

AlecGold

Enlightened
Joined
Oct 17, 2003
Messages
484
Location
Netherlands
.2 sounds about right assuming the sense resistor is for high. Measure the voltage across the sense resistor & see if you get around .07v?

so you need to replace the 0.10 with a 0.20?
Not add 0.10 on the free place?
I want to do this as well, so I can get a 350mAh max.
 

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