Precision multiple-current source

Details Precision multiple-current source Precision multiple-current source

G - Physics

05

F

323/11

G05F 1/56 (2006.01) G05F 3/26 (2006.01) H03M 1/00 (2006.01)

Patent

CA 1039353

ABSTRACT OF THE DISCLOSURE A precision current source arrangement with a multiple current source which supplies a number of currents which are identical in a first approximation. These currents are each individually applied to one of the input terminals of a coupling circuit which has an equal number of input and output terminals. By means of a periodic control signal this coupling circuit realizes such a connection pattern between the input and output ter- minals in a cyclically permuting fashion, that each of the output terminals is coupled to each of the input terminals within a constant cycle time dur- ing identical time intervals. By subjecting the currents which appear at these output terminals to a low-pass filter action a number of very accu- rately identical currents are obtained.

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