Smart connect device, start power supply and battery clamp

Abstract

The application provides a smart connection device, a starting power supply and a battery clamp. The smart connection device comprises a switching circuit, a key control module, a controller and a reverse connection detection module. When the reverse connection detection module detects that an external load is reversely connected to a load connection end, a first control signal is output to switch the key control module to an invalid state, so that the key control module cannot generate a key instruction to force the controller to output a driving signal, so that the switching circuit remains in an open state, and the battery assembly connected to the power supply connection end is prohibited from discharging output to the external load. The smart connection device directly controls the validity of the key control module through the reverse connection detection module, so that the user can be prohibited from inputting the key instruction to force the controller to output the driving signal to turn on the switching circuit when the external load is reversely connected. In this way, the discharging output of the battery assembly to the external load can be quickly disconnected in response to the reverse connection state of the external load, and the detection speed and validity of the related protection function are improved.

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