System and method for inductance compensation in wireless power transfer

An apparatus for wirelessly transferring power from a charging power source to a device, the apparatus comprising:

• a first strand wound in one or more turns and operationally coupled to the charging power source;
• a second strand wound together with the first strand in one or more turns and operationally coupled to the charging power source;
• a first transformer connected to the first strand and disconnected from the second strand;
• and
• a second transformer connected to the second strand and disconnected from the first strand, the first transformer and the second transformer configured to collectively reduce a current difference between a first current flowing through the first strand and a second current flowing through the second strand.

A method of wirelessly power transfer from a charging power source to a device, the method comprising:

• transmitting power via a first strand wound in one or more turns and operationally coupled to the charging power source;
• transmitting power via a second strand wound together with the first strand in one or more turns and operationally coupled to the charging power source;
• providing power via an inductor circuit to the first strand, the inductor circuit connected to the first strand and disconnected from the second strand;
• and
• reducing a current difference between a first current flowing through the first strand and a second current flowing through the second strand.

A method of wirelessly power transfer from a charging power source to a device, the method comprising:

• transmitting power via a first strand wound in one or more turns and operationally coupled to the charging power source;
• transmitting power via a second strand wound together with the first strand in one or more turns and operationally coupled to the charging power source;
• providing power via a first transformer connected to the first strand, the first transformer disconnected from the second strand;
• providing power via a second transformer connected to the second strand, the second transformer disconnected from the first strand;
• and
• reducing a current difference between a first current flowing through the first strand and a second current flowing through the second strand.

An apparatus for wirelessly transferring power from a charging power source to a device, the apparatus comprising:

• first means for transmitting wireless power to the device;
• second means for transmitting wireless power to the device;
• and
• means for reducing a current difference between a first current flowing through the first means for transmitting and a second current flowing through the second means for transmitting, the means for reducing connected to the first means for transmitting and disconnected from the second means for transmitting.

An apparatus for wirelessly transferring power from a charging power source to a device, the apparatus comprising:

• first means for transmitting wireless power to the device;
• second means for transmitting wireless power to the device;
• first means for reducing a current difference between a first current flowing through the first means for transmitting and a second current flowing through the second means for transmitting, the first means for reducing connected to the first means for transmitting and disconnected from the second means for transmitting;
• and
• second means for reducing the current difference connected to the second means for transmitting and disconnected from the first means for transmitting.