摘要
给出了几种相对较新的变频器检测与保护电路 ,包括电流、电压、过热、电源缺相和接地故障等的检测电路。其中基于线性光耦的检测电路因具有线性度好、便于隔离和灵敏度高的特点而引人注目 ,应用前景广阔。这些检测与保护电路可直接用于变频器的设计和实现 。
Some comparatively new circuits are shown in this paper, including the detection circuit for current, voltage, overheat conditions, power phase failure and ground fault, which can be directly applied in the design and realization of inverter and have good application result. In virtue of good degree of linearity, easy isolation and high sensitivity, the detection circuit based on the linear optical coupler comes to the front and has a wide application.
出处
《电气传动》
北大核心
2005年第3期16-19,29,共5页
Electric Drive
