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How to increase the digital output logic level in NI USB 6341

Hi

 

I WANT TO INCREASE THE DIGITAL OUTPUT LEVEL IN NI 6341. I AM TRYING TO DRIVE AN LED BUT THE CURRENT OUTPUT IS 2.7 V HENCE THE BRIGHTNESS OF THE LED IS LESS. HOW CAN I CHANGE THE DIGITAL OUTPUT LEVEL HERE.

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There's no need to yell (all caps in your post).

 

What you need to do is put in a digital buffer that can drive enough current for your LED.  DIO typically do no put out that much current.  I'm actually surprised that unit can put out 24mA (seems to be a USB power limitation).


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Thansk for the response. Actually I am using DAQ Assistant to generate digital output to turn LED on and off. What i understand is that DAQ Assistant automatically generate buffer but still the brightness of the LED is low. OR may be as I am new in LAB VIEW so I do not understand your post properly.

 

Thanks

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Wrong kind of buffer.  DAQ Assistant takes care of a memory buffer.  I've talking about a Digital Logic Buffer, a separate IC.  You need to be able to drive more current than the USB DAQ can output.  That's why the output voltage is low.  Do a search on digikey.  Here, I already started the search for you:http://www.digikey.com/scripts/dksearch/dksus.dll?pv247=43&FV=fff40027%2Cfff80194&k=buffer&mnonly=0&...


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Thanks. I will try this

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