The power receiving apparatus and method

The present invention describes for the detection region between a wireless power transmission apparatus and the power receiving apparatus in undesirable methods and apparatus of some foreign matter. Detection methods based on the first and second detection method different detection schemes can be used to detect the presence of misalignment and the foreign substance area during the power transmission operation separately. The first detection method can be used in the power transfer to the load before the power receiving apparatus, and the second detection method used may be supplied to the load while the power.