Design and realization of high-precision digital control direct current power supply

Haixia Jing, Zhengguo Liu, Haiyan Wang, Xiaohong Shen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

A high-precision digital control DC power supply based on singlechip STC89C52, A/D converter AD7705, D/A converter DAC7512 and three terminal adjustable regulator LM317 is designed and realized, which uses MCU as the center, and adopts 12 DAC DA7512 to realize digital control and 16 ADC AD7705 and LCD to the measurement and display of output voltage. The voltage adjustment range of this system is 0-13V, and the deviation of display value and set value is not more than 1%, voltage step value is 0.01 V. The experimental result shows that the system can well solve the accuracy of output adjustable voltage, and is characterized by high precision, easy to use and simple circuit.

Original languageEnglish
Title of host publication2011 International Conference on Consumer Electronics, Communications and Networks, CECNet 2011 - Proceedings
Pages4894-4897
Number of pages4
DOIs
StatePublished - 2011
Event2011 International Conference on Consumer Electronics, Communications and Networks, CECNet 2011 - XianNing, China
Duration: 16 Apr 201118 Apr 2011

Publication series

Name2011 International Conference on Consumer Electronics, Communications and Networks, CECNet 2011 - Proceedings

Conference

Conference2011 International Conference on Consumer Electronics, Communications and Networks, CECNet 2011
Country/TerritoryChina
CityXianNing
Period16/04/1118/04/11

Keywords

  • AD7705
  • DAC7512
  • DC power supply
  • digital control powe
  • voltage regulation

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