线圈回路中串接有由电容和电流放大器组成的控制电路。
A control circuit which is composed of a capacitor and a current amplifier is connected in a coil circuit in series.
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.
自行设计的控制电路解决了单线圈永磁机构的分、合闸拉制问题。
Self-developing control circuit solve open and close control questions in permanent magnetic actuator with one coil.
本实用新型涉及一种电磁铁，有轭铁、衔铁、推杆、拉杆、启动线圈、维持线圈、控制电路和端盖。
The utility model relates to an electromagnet, which is composed of a yoke iron, an armature iron, a push rod, a pull rod, a starting coil, a sustain coil, a controlling circuit and an end cover.
激励电流控制电路产生激励线圈的脉冲电流，并对脉冲电流进行调频和调幅控制。
The exciting current control circuit also can modulate frequency and modulate amplitude for the pulsed current.
激励电流控制电路产生激励线圈的脉冲电流，并对脉冲电流进行调频和调幅控制。
The exciting current control circuit also can modulate frequency and modulate amplitude for the pulsed current.
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