Doorbell conversion device and doorbell assembly

A doorbell assembly, comprising:

• a power input terminal for receiving an input power;
• a power output terminal;
• two doorbell trigger terminals;
• a power conversion unit coupled between the power input terminal and the power output terminal for generating a sensing signal in response to an electric potential of the power output terminal, wherein while the electric potential of the power output terminal is grounded, the power input terminal and the power output terminal are disconnected;
• wherein while the electric potential of the power output terminal is not grounded, the power input terminal and the power output terminal are connected to have the power output terminal output an output power based upon the input power;
• a trigger signal unit coupled between the power conversion unit and the two doorbell trigger terminals for controlling the two doorbell trigger terminals to be opened or shorted based upon the sensing signal, wherein while the electric potential of the power output terminal is grounded, the two doorbell trigger terminals are shorted;
• wherein while the electric potential of the power output terminal is not grounded, the two doorbell trigger terminals are opened;
• a doorbell unit coupled between the power input terminal and the two doorbell trigger terminals for outputting a doorbell sound while the two doorbell trigger terminals are shorted, and not outputting the doorbell sound while the two doorbell trigger terminals are opened.