1、

A basic construction and operation principle of thyristor trigger circuit which consists of integrated operational amplifier is described and the application of the thyristor trigger circuit in speed control of direct current low power motor is introduced.

叙述了由运算放大器组成的晶闸管触发电路的基本结构、工作原理,并介绍了该触发电路在小功率晶闸管直流调速系统中的应用。

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2、

Induction motor. This system consists of such functions as digital comparision, digital regulation, digital timing control, pulse trigger for thyristors, logical change of the rotation direction of the motor, automatical display of the trouble locations and alarm making.

该系统包括数字比较、数字调节、数字定时控制、对可控硅的脉冲触发、对电动机实现逻辑换向、自动显示故障和报警等多种功能。

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3、

the two variable resistors in the center are for controlling motor speed and trigger level.

两个可变电阻的中心控制电机转速和触发电平。

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4、

application of phase-shift trigger circuit in closed loop speed regulating system of torque motor

移相触发电路在力矩电机闭环调速系统中的应用

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5、

Built-in heat-triggered protector prevents motor damage and extends pump life.

内设过热自动保护装置防止电机损坏,延长泵的寿命.

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