Intelligent permanent magnet switch controller

Abstract

The invention relates to an intelligent permanent magnet switch controller. The controller comprises a single-chip microcomputer system, a battery emergency power supply circuit, a power supply detector, a Bluetooth communication module, a pulse switch charging circuit, a voltage sampling circuit, a clock circuit, an EEPROM, a battery, a manual button switch and the like. The manual button switchis operated to control a battery to generate an emergency power supply through the battery emergency power supply circuit; the single-chip microcomputer system monitors external power supply and an energy storage capacitor voltage; PWM pulse signals are output, an energy storage capacitor is charged through the pulse switch charging circuit, a voltage change speed is monitored, and function abnormity of related circuits can be judged; a pulse width control signal is output, an energy storage capacitor and an excitation coil are controlled to be connected for discharging through a bridge type driving circuit, an excitation current drives a permanent magnetic mechanism to act, the change of the discharge voltage of the energy storage capacitor is monitored, and overcurrent protection is triggered in case of abnormality; and wireless operation of a smart phone is achieved through the Bluetooth communication module, and real-time event information can be accessed through the clock circuitand the EEPROM.

Description

technical field [0001] The invention relates to an intelligent permanent magnet switch controller, which is an intelligent improvement of a permanent magnet high and low voltage circuit breaker and a contactor drive circuit, and belongs to the technical field of electric equipment control and protection. Background technique [0002] The permanent magnet high and low voltage circuit breakers and contactors that have appeared in recent years use the controller of the permanent magnet switch to drive the moving iron core in the permanent magnet mechanism to move up and down to realize the basic operation functions of closing and opening; , supercapacitor or battery energy storage, pulse excitation circuit control drive, there are still some problems in actual use. For example, the switch cannot be opened and closed during a power failure; the three-terminal voltage regulator circuit is used to charge the energy storage capacitor, which is large in size and slow in speed, and t...

AI Technical Summary

Problems solved by technology

For example, the switch cannot be opened and closed during a power failure; the three-terminal voltage regulator circuit is used to charge the energy storage capacitor, which is large in size and slow in speed, and the energy storage voltage of the energy storage capacitor is directly affected by the external power supply voltage; the high-voltage power supply circuit and the low-voltage power supply circuit are not connected Isolation, easy to interfere with each other, easy to damage components, etc.

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