Adjustable constant current source

Dilshan Jayakody has published a new build: The current source introduced in this article is capable to handle current up to 6A with maximum input voltage of 50V. This is an operational amplifier based adjustable current source and it uses LM358 in a general voltage follower configuration. To handle large currents we use four 0.1Ω […]

MicroCC microamp-range constant current source

MicroCC is a constant current source, but focused on the low current microamp range. It uses the Touchstone Semiconductor TSM6025 voltage reference, a drop in replacement for the MAX3025 with better than 15PPM stability. The TSM6025 used both as the reference voltage and regulator for a TS1001 op-amp (previously covered here) powered by a single 3volt CR2032 coin cell. […]