µCurrent device for getting more accurate current readings

[plexus]

I thought this might be of use to some of you. seems like a useful device if you really want to accurately set current.

EEVblog uCurrent - Precision nA Current Measurement Assistant [v3] ID: 882 - $59.95 : Adafruit Industries, Unique & fun DIY electronics and kits

I follow his channel on youtube and he has a 40 min video describing the whole product design for this: https://www.youtube.com/watch?v=g7b5YZENvjY

Blog posting: µCurrent | EEVblog - The Electronics Engineering Video Blog

 

[lasersbee]

That is for setting sub microAmp currents. Below 1 microAmp
or (1/1000) 1/1,000,000 of an Amp. Not really what you need
to set LD driver currents.


Jerry

 

[plexus]

I thought he would have spec'ed out the mA range to be wider than it is. i should have checked that first. its only +/- 300mA. so that doesn't make it that useful to us. but its still a cool device.

 

[Jacob32123]

That is for setting sub microAmp currents. Below 1 microAmp
or 1/1000 of an Amp. Not really what you need to set LD
driver currents.


Jerry

That doesn't make sense to me.
1/1,000 of an amp is a milliamp, not a microamp.
1/1,000,000 is a microamp

 

[plexus]

That doesn't make sense to me.
1/1,000 of an amp is a milliamp, not a microamp.
1/1,000,000 is a microamp

Jerry just made a simple typo. its hard to keep all the SI units organized in our heads. it allows more accurate measurement of nA (10^-9), µA (10^-6) and mA (10^-3). but the mA range is only up to +300mA.

 

[lasersbee]

That doesn't make sense to me.
1/1,000 of an amp is a milliamp, not a microamp.
1/1,000,000 is a microamp

... Brain Fart..

I must have subconsciously read milliamps in the
article... :yabbem:
Of course you are right...

(Corrected the Post Data)


Jerry