相位可调可编程数字移相器的设计

Design of Programmable Digital Phase Shifter with Adjustable Phase

以单片机控制为核心,设计了一种相位可调程的控数字移相器。应用CC4046锁相环,将其输出信号频率设置为输入参考信号的360倍频率。采用比较器、计数器、触发器、电子开关等器件设计出了一种能够实现程控的数字式移相器。相对于参考相位,移相器可达到0°-360°任意移相,相位步进1°。

A new programmable digital phase shifter with adjustable phase has been successfully designed using microcomputer on single-chip as the control core. The frequency of output signal was set to 360 times of input value with the technology of phase locking CC4046. By using comparator,counter and trigger,a novel digital phase shifter with remote control function,adjustable phase was designed and fabricated. Compared with the reference phase,any phase shift between 0-360° can be realized with phase step of 1.