Members Only

Article

Constant Current Source Adjustable Down to 0 mA

The simplest way to make an adjustable constant current source is to use a voltage regulator in a suitable configuration: an example of what is needed is given in the LM317 datasheet. However, this design does not allow the current to be adjusted down to zero. The design given here gets around that limitation.

Log in here as a subscriber to read the article.

Continue reading this Elektor article?

Try a digital membership (Green) for 6 months for only €5.33 per month.

Unlimited access to online Member Only articles
3 new editions Elektor Magazine (digital)
More than 5000 Gerber files
20% member discount on e-books (at elektor.com)
10% member discount on Products (at elektor.com)

Try for 6 months.
Stops Automatically.

What is Elektor Exclusive?

Extra info / Update

Correction

Issued: June 28, 2011.

Transistor T1 should be labelled: BC557B.

Discussion (0 comments)

Embed Code