Multi-mode wireless power transmission method and device for same

A wireless power transmitter supporting a plurality of wireless power transmission modes, comprising:

• a first transmitter configured to transmit a first power signal corresponding to a first wireless power transmission mode;
• a second transmitter configured to transmit a second power signal corresponding to a second wireless power transmission mode;
• and
• a first power interruption circuit coupled to the first transmitter to interrupt introduction of the second power signal and to pass the first power signal.

A wireless power transmitter comprising:

• a controller;
• first to k-th wireless power transmission blocks each comprising an interference power interruption unit configured to prevent the power signal from being coupled through a coil provided with a power signal sent by another wireless power transmission block and introduced into an internal circuit;
• and
• a block selection switch configured to supply power to at least one of the first to k-th wireless power transmission blocks according to a control signal of the controller.

A method for wireless power transmission in a wireless power transmitter having first and second transmitters, the method comprising:

• sensing a position of a wireless power receiver in a charging area;
• transmitting a first power signal using the first transmitter corresponding to the sensed position;
• and
• interrupting the first power signal introduced into the second transmitter.