公开(公告)号：US20130033331A1

公开(公告)日：2013-02-07

申请号：US13204401

申请日：2011-08-05

申请人： Ashwin RAGHUNATHAN ,  Marzio Pedrali-Noy ,  Sameer Wadhwa

发明人： Ashwin RAGHUNATHAN ,  Marzio Pedrali-Noy ,  Sameer Wadhwa

IPC分类号： H03B5/12

CPC分类号： H03K3/0315 ,  H03B2200/0074

摘要： An injection-locked oscillator circuit includes a master oscillator, a slave oscillator, and an injection lock control circuit. The slave oscillator is decoupled from the master oscillator (for example, due to an unlock condition). When the slave is free running, its oscillating frequency is adjusted (for example, as a function of a supply voltage). After an amount of time, the slave is to be relocked to the master (for example, due the unlock condition no longer being present). The slave oscillating frequency is made to be slightly lower than the master oscillating frequency. The slave is then only recoupled to the master upon detection of an opposite-phase condition between the master oscillator output signal and the slave oscillator output signal. By only recoupling the slave to the master during opposite-phase conditions, frequency overshoots in the slave oscillating frequency are avoided that may otherwise occur were the recoupling done during in-phase conditions.

摘要翻译： 注入锁定振荡器电路包括主振荡器，从振荡器和注入锁定控制电路。 从振荡器与主振荡器分离（例如，由于解锁状态）。 当从机自由运行时，其振荡频率被调整（例如，作为电源电压的函数）。 在一段时间之后，奴隶将被重新锁定到主人（例如，由于解锁条件不再存在）。 从振荡频率略低于主振荡频率。 在主振荡器输出信号和从振荡器输出信号之间检测到相位相位条件时，从器件仅被重新耦合到主器件。 通过在相位相位条件下仅将从机重新耦合到主机，避免了从动振荡频率中的频率过冲，否则在同步状态期间进行重新耦合可能会发生。