系统采用积分分离式变参数PID调节器，在焊接电流调节范围内，具有良好的响应速度和调节性能。
The PID adjuster of integration separation mode has been used in this system, which have good responsive speed and adjust property in the range of welding current.
温控电路采用比例积分调节器，通过半导体制冷器，使激光器工作在恒温状态下，同时引入积分分离思想，进而抑制积分饱和。
Temperature control was realized by PI adjustor based on semiconductor cooler. At the same time, integral separation was introduced to inhibit integral saturation.
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