Author Topic: Max current when setup for low power  (Read 1968 times)

Offline zwiller

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Max current when setup for low power
« on: January 15, 2014, »
I just noticed the manual states the max current per channel is 100ma when setup for CC/low power.  I think I got my led figures mixed up.  I am looking to go 300-350ma per channel.  Is there any way to achieve this? 
Sam, who is happy he flashed his etherdongle with newest firmware!

"Now, I had heard that word at least ten times a day from my old man. He worked in profanity the way other artists might work in oils or clay. It was his true medium; a master."

Offline RJ

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Re: Max current when setup for low power
« Reply #1 on: January 15, 2014, »
Put the mosfets back in.
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Offline zwiller

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Re: Max current when setup for low power
« Reply #2 on: January 16, 2014, »
Thanks.  So, set it up for low power with appropriate resistor for 350ma but add the mosfets?

I should have provided more info.  Looking to power some 1W leds as strobes with the MR16 setup for constant current so I am concerned we're on the same page about adding the mosfets. 
Sam, who is happy he flashed his etherdongle with newest firmware!

"Now, I had heard that word at least ten times a day from my old man. He worked in profanity the way other artists might work in oils or clay. It was his true medium; a master."

Offline RJ

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Re: Max current when setup for low power
« Reply #3 on: January 16, 2014, »
To get that kinda of current it will need to built with the mosfets in normal high current setup. It is not current controlled like this so it is up to you add a current limited of some type such as a resistor.

RJ
Innovation beats imitation - and it's more satisfying

Offline zwiller

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Re: Max current when setup for low power
« Reply #4 on: January 16, 2014, »
Thanks.  That's what I wondered/feared  ;D 

Seems odd that there aren't any higher current diy CCR controllers with the led prices being as low as they are.  I got some 1w watt white for a quarter shipped...
Sam, who is happy he flashed his etherdongle with newest firmware!

"Now, I had heard that word at least ten times a day from my old man. He worked in profanity the way other artists might work in oils or clay. It was his true medium; a master."

Offline tbone321

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Re: Max current when setup for low power
« Reply #5 on: January 16, 2014, »
You don't see it because there really isn't much need for it.  When you are drawing this much power, a small current incease will be absorbed by the equipment with litte to no noticeable affect.  A 10 mill current change on a singe small LED could blow it up but that same change on a 1 watt version would probably not even be noticed unless you were driving it to it's max.
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