James Sweet schreef in berichtnieuws
d1M6d.9728$me5.4783@trnddc06...

"Bianca" wrote in message
...
For a project I need to have a controlled current of 20mA (tolerance
abt
10
%) for connection at the output of an IC that is giving a 1 Hz pulse,
voltage between 5 and 12 VDC, as low-cost and easy as possible...

The next component connected to that output will die if it must eat more
than those 20mA.

Some links or ideas would be helpful.





Have you bothered to type something like Constant Current Source into
Google?



Yupz.
I always try my fiance first. ;o)
All too complicated or not working.