title: Note: Development of 9 A current source for precise resistance measurement method.
abstract: In this Note, design of voltage controlled current source intended to be used in precise resistance measurement system in the range from 0.1 mΩ to 10 Ω is presented. The design specifications of current source include gross-tuning of current in the range from 0.1 mA to 9 A, low noise, low temperature coefficient, and short term stability better than 50 ppm. The realized current source has achieved better short term stability than comparable commercial devices.
authors.affiliation: Faculty of Electrical Engineering and Computing (FER), University of Zagreb, Zagreb, Croatia.
authors.forename: Igor
authors.initials: I
authors.lastname: Štambuk
authors.forename: Roman
authors.initials: R
authors.lastname: Malarić