Electrical feed line integrated filtering for inductive power transfer systems

A wireless power transmitter system for filtering unwanted frequencies in a wireless power transfer system, the wireless power transmitter comprising:

• a power source that generates a driving signal having a driving signal frequency;
• and
• a feed line connected to the power source at a first end, the feed line comprising:
• at least one conductor core;
• an integrated filter configured to attenuate at least one frequency generated by the wireless power transfer system when a wireless power transfer element is coupled to a second end of the feed line, wherein the integrated filter comprises at least one inductor and at least one capacitor;
• and
• a plurality of segments including:
• a first segment comprising the integrated filter, and
• a second segment comprising a second integrated filter configured to attenuate at least one second frequency generated by the wireless power transfer system, wherein the second integrated filter comprises a second inductor and a second capacitor.

A wireless power receiver system for filtering unwanted frequencies in a wireless power transfer system, the wireless power receiver system comprising:

• a wireless power transfer element configured to wirelessly transmit power when driven by a power source that generates a driving signal having a driving signal frequency;
• and
• a feed line connected to the wireless power transfer element at a first end, the feed line comprising:
• at least one conductor core;
• an integrated filter configured to attenuate at least one frequency generated by the wireless power transfer system, wherein the integrated filter comprises a first inductor and a first capacitor;
• and
• a plurality of segments including:
• a first segment comprising the integrated filter;
• and
• a second segment comprising a second integrated filter configured to attenuate at least one second frequency generated by the wireless power transfer system, wherein the second integrated filter comprises a second inductor and a second capacitor.