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An Implementation of Efficient Error-reducing Method Using DSP for LED I-V Source and Measurement System
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 Title & Authors
An Implementation of Efficient Error-reducing Method Using DSP for LED I-V Source and Measurement System
Park, Chang Hee; Cho, Sung Ho;
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 Abstract
In this paper, we proposed error-reducing method to source or measure a current or voltage for LED in the I-V characteristic analysis system using a digital signal processor (DSP). this method has the advantage of reducing a non-linear circuit error and random error. random error can be reduced using recursive averaging technique and non-linear circuit error can be reduced using 2rd polynomial regression calibration parameters fitting with measured sample data. it corrects measured error of IR, VR, VF1, VF2, VF3 of LED using calibration parameters. experimental results show that can be performed with about 0.017~0.043% accuracy.
 Keywords
LED;DSP;calibration;measurement;error correction;averaging;polynomial;
 Language
Korean
 Cited by
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