Interface switching apparatus for switching between a plurality of power supply pins and input/output terminals

An interface switching apparatus comprising:

• a signal source comprising a first power supply output terminal and a data output terminal;
• a display unit comprising a first power supply input terminal and a data input terminal;
• a control unit comprising a switching chip;
• the switching chip comprises a control signal input terminal, a first data pin, a second data pin, and a third data pin;
• and
• a connector comprising a second power supply input terminal, a second power supply output terminal, and a data input output terminal;
• wherein the first data pin is electrically coupled to the data output terminal;
• the second data pin is electrically coupled to the data input output terminal;
• the third data pin is electrically coupled to the data input terminal;
• the control signal input terminal is configured to receive a switching signal;
• the switching chip is configured to switch the second data pin communicated with the first data pin or the third data pin according to the switching signal;
• wherein when the second data pin is switched to communicate with the first data pin according to the switching signal, the first power supply output terminal is electrically coupled to the second power supply input terminal, the signal source provides power supply for an electronic device connected with the connector, the signal source outputs data to the electronic device connected with the connector;
• and
• wherein when the second data pin is switched to communicate with the third data pin according to the switching signal, the first power supply input terminal is electrically coupled to the second power supply output terminal, the electronic device connected with the connector provides power supply for the display unit, the electronic device connected with the connector outputs data to the display unit.

An interface switching apparatus comprising:

• a signal source comprising a first power supply output terminal and a data output terminal;
• a display unit comprising a first power supply input terminal and a data input terminal;
• a connector comprising a second power supply input terminal, a second power supply output terminal, and a data input/output terminal;
• a control unit comprising a switch, the switch including:
• a control signal input terminal configured to receive a switching signal;
• a first data pin electrically coupled to the data output terminal;
• a second data pin electrically coupled to the data input/output terminal;
• and
• a third data pin electrically coupled to the data input terminal;
• wherein the switch is configured to selectively connect the second data pin to the first data pin or the third data pin according to the switching signal;
• wherein when the switch places the second data pin in communication with the first data pin, the signal source provides power for an electronic device connected with the connector through the first power supply output terminal and the second power supply input terminal;
• and
• wherein when the switch places the second data pin in communication with the third data pin, the electronic device provides power supply for the display unit through the first power supply input terminal and the second power supply output terminal.