APPARATUS AND METHOD FOR POWER SUPPLY OF DIGITAL DOOR LOCK

摘要

An apparatus and a method for supplying power to a digital door lock are provided to facilitate power supply to the digital door lock by using a mobile terminal without a separate cable. A digital door lock apparatus opens/closes a door lock by using an internal power supply and includes an interface part(211) and a constant voltage supply part(201). The interface part is connected to an I/O terminal of a mobile terminal and receives power from a battery in the mobile terminal. The constant voltage supply part converts the power supplied from the interface part to a voltage, which is used in the digital door lock.