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            Energy-saving vibration plate control circuit which are the main links

            Release time: 2017-09-08 13:43:57

            Source: Ningbo Eagle Intelligent Technology Co., Ltd

            Saving energy vibration plate control line, the general use of continuous current diode half-wave thyristor rectifier circuit. It contains many of the following links.


                A given voltage link
            The bridge rectifier RC filter circuit and the regulator output a continuous DC voltage as a given voltage. Adjust the master potentiometer, can change the size of a given voltage, and then achieve the motor speed deceleration.


                Second, the speed of negative feedback link

                Speed ​​feed and load coaxial, it will change the speed of three sets of communication and communication voltage, the three-phase bridge rectifier and capacitor filter output negative feedback DC signal. After the speed feedback negative feedback potentiometer, can adjust the amount of feedback. The goal of using the negative feedback of the speed is to enhance the hardness of the mechanical characteristics of the motor, so that the energy saving vibration plate does not change due to the change of the load.

                Third, phase shift and trigger links
            The use of synchronous voltage for the sawtooth wave of a single transistor or synchronous voltage for the trapezoidal wave of the single junction of the trigger circuit.

                If the boost voltage is increased, the trigger voltage of the clutch is increased and the rotational speed of the clutch is increased. Therefore, the rotational speed of the clutch is increased, Conversely, if a given voltage is reduced, the speed is reduced.

                Four, comparison and amplification links
            Given the voltage and feedback signal comparison (subtraction) after the transistor into the amplification, the amplified control signal into the trigger (before the positive and reverse load).

             

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