{"title":"Design of Low Power High Stability Constant Current Source System","authors":"Wenjie Wang, Xinding Zhang","doi":"10.1109/EEI59236.2023.10212648","DOIUrl":null,"url":null,"abstract":"In this paper, a high stability constant current source system is designed, and its output current range is - 100mA~100mA. Firstly, based on the series negative feedback circuit to achieve steady current design, external DAC to realize the adjustment function, then, made a precision sampling resistor to achieve high stability, designed and tested a high stability voltage reference source, and developed STM32 peripheral resources to Its functions are enriched, and finally after long-term measurement, the current stability is better than 2ppm. This design has the advantages of simple structure, strong operability, and high stability.","PeriodicalId":363603,"journal":{"name":"2023 5th International Conference on Electronic Engineering and Informatics (EEI)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2023 5th International Conference on Electronic Engineering and Informatics (EEI)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/EEI59236.2023.10212648","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
In this paper, a high stability constant current source system is designed, and its output current range is - 100mA~100mA. Firstly, based on the series negative feedback circuit to achieve steady current design, external DAC to realize the adjustment function, then, made a precision sampling resistor to achieve high stability, designed and tested a high stability voltage reference source, and developed STM32 peripheral resources to Its functions are enriched, and finally after long-term measurement, the current stability is better than 2ppm. This design has the advantages of simple structure, strong operability, and high stability.