用该方法构成的PWM控制电路结构简单，性能可靠，具有良好的系统运行效果。
The method of using a PWM control circuit is simple, reliable, has a good system operating results.
双电磁系统控制电路确保两台并联接触器的同步闭合和无声节电运行。
Its control circuit with double electromagnetic system can ensure synchronous closing, silent and energy saving operation of two contactors in parallel.
本实用新型涉及的是一种自转无声节电线圈，用于低压控制电路中的交流接触器上，并实现无声节电运行。
The utility model relates to an autorotation silent electricity-saving coil, used on the ac contactor in the low-voltage controlling circuit, realizing the silent electricity-saving running.
应用推荐