Wireless Advanced Vehicle Electrification, Inc.

Ryan Calder

Patrice R Lethellier

Marcellus Harper

Michael Masquelier

Steve Ball

Evans Griego

An apparatus for multi-pad wireless charging is disclosed. The apparatus includes a plurality of primary pad apparatuses. Each primary pad apparatus is positioned to transmit power to a secondary pad apparatus of a vehicle. The primary transmitter pad apparatuses are spaced apart sufficient for each of a plurality of vehicles to be positioned over one primary pad apparatus of the plurality of primary pad apparatuses. The apparatus includes a power converter apparatus connected to each of the plurality of primary pad apparatuses, a power feed that provides power to the power converter apparatus and a sharing controller that selectively controls which of the plurality of primary pad apparatuses transmits power to a secondary pad apparatus and/or controls power sharing between the primary pad apparatuses.

Single feed multi-pad wireless charging

A vault apparatus for wireless power transfer includes a vault comprising an opening for a wireless power transfer ('WPT') pad. The opening is located on a top of the vault. The vault apparatus includes a junction box formed into the vault. The junction box includes an opening oriented toward the top of the vault. The vault apparatus includes a sealing ring that maintains a WPT pad fixed in the vault where a portion of the sealing ring covers the junction box.

Vault for wireless power transfer pad with integrated junction box

A transmission cable to reduce radiated electromagnetic radiation includes a first conductor with current flowing in a positive direction, a second conductor with a current flowing in a negative direction, where the negative direction is opposite the positive direction and the current in the first conductor equal to the current in the second conductor, a third conductor with current flowing in the positive direction and a fourth conductor with a current flowing in the negative direction. The current in the third conductor is equal to the current in the fourth conductor. The first conductor, the second conductor, the third conductor, and the fourth conductor are arranged in a symmetrical square pattern and the conductors are each on a corner of the square pattern. The first conductor is opposite the third conductor and adjacent to the second conductor and the fourth conductor.

Cable configured to reduce a radiated electromagnetic field

A resonant AC-to-DC converter apparatus includes an inductance circuit comprising an inductor with a first and connected in series with each phase of an AC power source comprising a fundamental frequency, and a capacitance circuit that includes a capacitance for each phase. Each capacitance is connected between a second end of the inductor of a phase and a neutral connection, and the capacitance and the inductor of the connected phase form a resonant frequency. The apparatus includes a rectification circuit with an input and an output, the input connected, for each phase, in series with the second end of the inductor of the phase. The resonant frequency is related to the fundamental frequency to provide a gain at the fundamental frequency, the gain boosting a voltage of the input to the rectification circuit at the fundamental frequency above an output voltage of the AC source.

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Saratoga Springs, UT, United States of America

Ryan Calder