There is disclosed a system and method for transferring power without
requiring direct electrical conductive contacts. There is provided a
primary unit having a power supply and a substantially laminar charging
surface having at least one conductor that generates an electromagnetic
field when a current flows therethrough and having an charging area
defined within a perimeter of the surface, the at least one conductor
being arranged such that electromagnetic field lines generated by the at
least one conductor are substantially parallel to the plane of the
surface or at least subtend an angle of 45.degree. or less to the surface
within the charging area; and at least one secondary device including at
least one conductor that may be wound about a core. Because the
electromagnetic field is spread over the charging area and is generally
parallel or near-parallel thereto, coupling with flat secondary devices
such as mobile telephones and the like is significantly improved in
various orientations thereof.