关键词：单片机AT89C51；信号发生器；D／A转换器；调频算法 [gap=1107]Keywords：Single chip microcomputer AT89C51；signal generator；D／A converter；frequency modulation algorithm ..
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毕业论文 格式范文-吾爱文库网 关键词：单片机 AT89C51 数字时钟 [gap=1402]Keywords: Single Chip Microcomputer AT89C51；digital clock；LED digitron monitor
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The control core of frequency converter composed of the single chip microcomputer AT89C51 and sine PWM chip SLE4520, the main circuits and flow charts are given also.
使用AT 89 C 51单片机和SLE4520正弦pwm信号专用芯片作为变频部分的控制核心，给出了主要部分电路原理图和软件流程图。
The control core of frequency converter composed of the single chip microcomputer AT89C51 and sine PWM chip HEF4752, the main circuits and flow charts are given also.
使用AT 89 C 51单片机和HEF4752正弦pwm信号专用芯片作为变频部分的控制核心，给出了主要部分电路原理图和软件流程图。
It takes the single chip microcomputer AT89C51 as the control nucleus, USES digit controlled current to control running of weighbeam, adopts infrared technology to check the balance of weighbeam.
测量仪以单片机at89c51为控制核心，使用数控电流源控制秤杆的转动，采用红外监控技术检测秤杆的平衡位置。
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