Intelligent control module for permanent magnet contactor
A control module and contactor technology, applied in relays, automatic disconnection emergency protection devices, electrical components, etc. It can improve the charging efficiency, widen the closing voltage, and ensure safety.
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[0036] Such as figure 1 As shown, the permanent magnetic contactor intelligent control module of the present invention mainly includes a microprocessor 1, a rectifier filter circuit 2, an internal working power supply circuit 3, a rechargeable battery control circuit 4, a closing operation module 5, an opening operation module 6, Energy storage capacitor voltage detection circuit 7, control voltage detection circuit 8, power failure detection circuit 9, and button setting and display control circuit 10. The closing operation module 5 is composed of a first MOSFET driving protection circuit 51 and a first MOSFET 52, and the opening operation module 6 is composed of a second MOSFET driving protection circuit 61 and a second MOSFET 62.
[0037]The external AC power input 11 first passes through the internal working power circuit 3 to provide two +5V working power sources for the entire working circuit. Among them, the first +5V power supply is mainly used as the working power supply...
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