数控直流稳压电源设计学位论文.doc

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6、cccccccccccccccccccccccccccccccormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraSelec无线电爱好者协会电源研究小组数控直流稳压电源摘要:本系统以实现直流稳压电源的模拟、数字双线控制为目的,用AT89S52单片机作为主控制芯片,以ICL7107作为数显转换核心，实现对电源输出电压的数字控制及数字显示。关键词：直流稳压，数字电位器，数控一、作品介绍本系统电路主要包括五大部

7、分:l整流滤波保护电路l+5V稳压电路l可调稳压电路l数控电位器l单片机系统l数字显示电路本系统主要特点：l采用负反馈截流式过流保护方案，电源使用更安全。l输出电压范围大，可输出1.25-22Vl采用分立元件搭建分压电阻网络，由单片机控制l基于ICL7107的独立数字显示电路，显示精度高达0.01VSelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraaa

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