The SPLL consists of calculation frequency error, updating loop middle variable, and output control signal.
该锁相环由计算频率误差、更新环路中间变量、输出控制信号组成。
The output signal of the boiler host controls was delivered to the fuel oil control loop and the amount of wind control loop as given value.
锅炉主控输出信号送燃油控制回路及风量控制控制回路，作为给定值。
Double closed loop control is implemented with increment encoder through signal of speed and position.
采用增量式编码器，通过速度及位置信号进行双闭环控制。
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