Research on One Kind of Intellectualization High Accuracy Digital Adjustment Direct Source

Yan Hui Xu; Dan Tong Zhang

doi:10.4028/www.scientific.net/AMM.599-601.608

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 599-601Research on One Kind of Intellectualization High...

Research on One Kind of Intellectualization High Accuracy Digital Adjustment Direct Source

Abstract:

The power source uses the digital adjustment, the closed loop real-time monitoring.The output precision is vary high. It also has both the dual over-load protection and alarm, which is suitable especially in each kind situation of the high accuracy request.This design intellectualization direct-current power supply uses the self-restraint keyboard entry. The system of intellectualization high accuracy digital adjustmen direct source contains D/A module and A/D module . D/A module adopts low-priced 8 bits DA chip. DAC0832 is a electric current exports type 8 bits D/A converter , adopting to reversing T type resistor network. The ADC0809 chip,with 8 bits AD changes ,accomplishes the data collect function and makes up into the closed cycle circuit. The inside of ADC0809 has output lock-memory implement , it can link up with AT89C51 monolithic machine directly. The stabilivolt outputed and over-stream protection module adopts the in-line stabilivolt circuit which has used three end integrated stabilivolt chip , adopting LM317 and LM337 series three hold adjustable stabilivolt tube., LM317 is a three end adjustable voltage stabilizer integrated circuit of USA country semiconductor company.The single-chip microcomputer receives voltage value information of keyboard input, and carries on processing.

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Periodical:

Applied Mechanics and Materials (Volumes 599-601)

Pages:

608-611

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.599-601.608

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Online since:

August 2014

Authors:

Yan Hui Xu*, Dan Tong Zhang

Keywords:

Direct Source, High Accuracy, Single-Chip Microcomputer

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* - Corresponding Author

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