Practice has proved that the hardware circuit of this control system has been simplified, the work is more valuable, and the working efficiency is so improved after PLC technological transformation.
实践证明，在应用PLC进行技术改造后，该控制系统的硬件电路得到了简化，工作更加可靠，提高了机床工作效率。
For isolated-type symmetry half-bridge bidirectional converter with phase-shifted control, a simplified circuit under 4 modes using the primary windings of transformer as reference object is built.
以隔离型对称半桥双向变换器为对象，建立了以原边为参考的4种模式下的简化电路，提出了结合开关函数的状态空间平均模型的建立方法。
The third chapter introduces the principle of ASVG and gets the indirect current control according to the simplified circuit model of ASVG.
第三章介绍了ASVG的基本原理，根据简单AS VG电路模型得出电流间接控制策略。
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