一种新型数字移相电路的设计  

DESIGN OF A NEW DIGITAL PHASE TRANSFER CIRCUIT

作　　者：李莹[1] 李树德[1] 杜瑞林[1] 赵凤花[1] 夏界宁[1] 

机构地区：[1]中国地震局地震研究所,武汉430071

出　　处：《大地测量与地球动力学》2009年第2期143-145,148,共4页Journal of Geodesy and Geodynamics

基　　金：国家自然科学基金(40575011;40674009);国家科技支撑计划(2006BAC01B1-02-02);中国地震局地震研究所科技发展基金(IS200761365)

摘　　要：用反相器、计数器和触发器等一些简单的芯片设计了一种新型的数字移相电路,移相范围0°～360°。同时将一种晶体振荡电路分频后对所设计的数字移相电路进行实验分析,结果表明,其精度可达2.8°,且稳定、可靠。By use of inverter, counter, trigger and some other simple chips, a kind of digital phase transfer circuit was designed. The range of phase angle which can be transfered is from 0° to 360°. In the same time, the digital phase transfer circuit was tested and analyzed with a crystal oscillator circuit after frequency division. The resuits show that this phase transfer circuit is stable and reliable, the accuracy can reach to 2.8°.

关 键 词：移相电路 分频 晶体振荡 触发器 计数器 

分 类 号：TH762[机械工程—仪器科学与技术]