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Development of Programmable Multi-channel Precision Current Source
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DOI：10.1109/cpem49742.2020.9191732.png)
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Abstract
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This paper introduces the development of programmable multi-channel precise current source. Through unique circuit design and optimization, a 16-channel programmable multiple-channel precise current source is realized, which can be supplied by battery or 220V AC. Each channel can achieve DC current output from - 27 mA to 27 mA with a resolution of 2 mu A. The accuracy of current output is better than I-set +/- (0.01%x I-set + 1 mu A), and the noise is lower than 1 mu A RMS. This device will be used for the programmble quantum voltage applications
Keywords:
Current Source
Multichannel
Voltage standard
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