【摘要】 介绍了一种应用于电度表校表系统中的高精度的可调频调相正弦信号源的实现方法 .以单片机作为控制器件 ,EPROM存储数据 ,利用大规模可编程逻辑器件设计实现大部分外围电路 ,通过D/A转换器实现两路正弦波形的输出 ,达到校表系统对频率和相位差调节的要求更多还原

【Abstract】 A method of design and realization of high-precise sinusoid function generator with tunable frequency and phase is present,which applied in regulator system for ammeter.The single-chip microcomputor works as controller.The sinusoid table is stored in the electrically programmable read-only memory(EPROM).In-system programmable logic device is used to build the peripheral circuit.The two signals are output by (D/A) convertors.The outputs meet the need of regulator system for ammeter.更多还原