Power supply of docking system and power failure safe docking system

A computer having a docking station that receives a notebook computer, comprising:

• a plurality of extension peripheral devices in said docking station;
• an AC-to-DC converter located in said docking station receiving an external AC power supply to convert the received AC power supply to a DC power supply for said notebook computer;
• a docking interrupt switch generating a docking interrupt control signal when either no more power is supplied from the AC-to-DC converter and no more power is supplied from the notebook computer, or it is determined that docking connection between said notebook computer and said docking station is imperfect;
• an analog switch receiving power from the AC-to-DC converter, and disconnecting a peripheral device controller of said notebook computer from said plurality of extension peripheral devices of said docking station depending upon whether said docking interrupt control signal is generated;
• a docking power supply control switch cutting off power of the AC-to-DC converter supplied to the said plurality of extension peripheral devices when said docking interrupt control signal is generated;
• and
• a docking connector selectively electrically connecting and separating said notebook computer to or from said docking station.

A method of protecting a plurality of peripheral devices inside a docking station of a computer from power glitches, comprising the steps of:

• providing a notebook computer that connects to said docking station;
• providing an AC to DC power converter inside said docking station;
• determining whether power is being supplied to said docking station from an AC power supply;
• determining whether said notebook computer is docked onto said docking station;
• determining whether said notebook computer is correctly installed onto said docking station if said notebook computer is docked onto said docking station;
• determining if said notebook computer can power said docking station if said notebook computer is correctly installed onto said docking station;
• and
• cutting power to said plurality of peripheral devices if said notebook computer is not correctly installed onto said docking station or both no AC power is being supplied to said docking station and said notebook computer cannot power said docking station.