Intelligent electric saver for motor

Abstract

The invention discloses an intelligent electric saver for a motor, which comprises a DC voltage-stabilizing circuit, a pulse width modulation circuit, a half bridge driving circuit and a high-frequency isolation transformer circuit, wherein the DC voltage-stabilizing circuit comprises a transformer, a bridge rectifier circuit, a filter capacitor, a current-limiting resistor and a voltage-stabilizing diode; the pulse width modulation circuit comprises a chip TL494CN; the eighth pin of the chip TL494CN is connected with the positive electrode of the voltage-stabilizing diode; the ninth pin and the tenth pin of the chip TL494CN are driving signal output ends; the half bridge driving circuit comprises a field effect transistor and a field effect transistor; the G electrode of the field effect transistor is connected with the ninth pin of the chip TL494CN; the G electrode of the field effect transistor Q2 is connected with the tenth pin of the chip TL494CN; and the D electrode of the field effect transistor and the D electrode of the field effect transistor are respectively connected with the input end of the high-frequency isolation transformer circuit.

Description

technical field [0001] The invention relates to a power saver, more specifically, the invention relates to a motor intelligent power saver. Background technique [0002] Motor saver is to adjust the input power of the motor at any time according to the load rate of the motor without changing the rated speed of the motor, so as to ensure the stable operation of the motor at the optimal load rate and reduce the copper loss, iron loss and stray energy of the motor. Loss and additional loss, so that the life of the motor is extended, but also greatly improve the operating efficiency of the motor, thereby achieving the purpose of saving electricity. At present, compared with developed countries, domestic motors generally have lower operating efficiency. This is because considering factors such as grid voltage fluctuations, equipment overload, and mechanical wear, 30% of the power margin is generally reserved when selecting motor equipment. . However, these devices rarely reach ...

AI Technical Summary

Problems solved by technology

These devices often have a low load rate, low operating efficiency, and the waste of electric energy is staggering.