NASA NTRS · 19920000068
Differential Current Source
Abstract
Circuit acts as voltage-controlled current source having high-impedance floating differential output. Maintains commanded current in load, regardless of changes in load impedance and regardless of any common-mode voltages on load. Provides constant excitation current to germanium resistance thermometer or other transducer, output voltage of which sensed by differential voltage amplifier.
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Sutton, John F.. 1992-02-01. Differential Current Source. https://ntrs.nasa.gov/citations/19920000068
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