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Thank you for your help
Basically, the problem is to manage the current being the same as it was with the current mirror (0-150µA) and have the exponential curve on the whole 0-28V zone
Is there a way to have almost the two of them combined ?
Hello,
I am currently trying to change the output from my current mirror, which is linear, to a more exponential one.
The picture below shows the current mirror i'm using, which is intended to work from 8V to 28V.
What i would like is for the current to act like the graph below :
What changes...
No worries I explained my problem extremely bad.
As for the Transistors, i have been looking in that direction, but I would need to create a lot of parallel branches to make it work the way I intend to.
Thanks for your answer
As I said in my answer to Klaus, my analog signal has a 0-28V range, and I would need my output current to range from at least 8mA to 35mA
Now, if my pre-programmed K is equal to 512, then i would need a maximum of 70µA to achieve 35mA in the output (assuming my...
Hi, first of all thank you for your answer.
Yes, when I said "control the pin" I meant control the current to the REF pin.
What i am trying to do is to set the current output with an analog signal, so changing the resistance is a no go.
As for my recquirements :
- the analog signal vary from...
Hello
I am trying to find a solution to control the REF pin of the TPS929160-Q1. The datasheets explains that the output current can be set with the Rref resistance, and I would like to know if anyone would have an idea to control this pin and by doing so control the output current ?
Would it...
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