About 59 results
https://drivepatents.com/patents/948643 · 30 Sep 2015
A power supply device is capable of transferring AC power in a noncontact manner to a secondary coil of a power receiving device. The power supply device includes an AC power supply that outputs the AC power. The AC power supply includes a DC/AC conversion...
https://drivepatents.com/patents/957784 · 9 Sep 2015
Provided is a power transmission system that can prevent a plunge in power transmission efficiency even when there is a positional shift of a power reception antenna with respect to a power transmission antenna. A power transmission system 100 of the prese...
https://drivepatents.com/patents/949230 · 26 Aug 2015
The invention relates to an inductive charging device (1) for charging an electrical energy storage device (3) of a vehicle (2), comprising a primary coil (4) and an inverter (5) upstream of the primary coil (4) for converting a direct voltage into an alte...
https://drivepatents.com/patents/949540 · 12 Aug 2015
A power receiving device capable of receiving alternating-current power in a wireless manner from a power supply device includes a secondary side coil, a fluctuating load, an impedance conversion unit, and a grasping unit. The secondary side coil is able t...
https://drivepatents.com/patents/958505 · 5 Aug 2015
When a power supply ECU (800) receives a signal requesting test electric power transmission, the power supply ECU (800) has a plurality of electric power transmission portions (700A, 700B) start transmission of electric power for positioning, and determine...
https://drivepatents.com/patents/958890 · 29 Jul 2015
A power-receiving device (21) includes a secondary coil (23a), which wirelessly receives AC power from a power-supply device (11) having a primary coil (13a), a variable load (22), in which an impedance changes in accordance with the power value of the inp...
https://drivepatents.com/patents/959959 · 17 Jun 2015
A power feeding coil unit includes a power feeding coil, and an auxiliary coil. The auxiliary coil is arranged not to interlink with a magnetic flux that interlinks with a power receiving coil that is arranged to face the power feeding coil during power fe...
https://drivepatents.com/patents/960548 · 20 May 2015
A power-receiving device includes a secondary-side coil which can receive a first alternating current power without contact from a power-sending device having a primary side coil into which first alternating current power is input. The power-receiving devi...
https://drivepatents.com/patents/950996 · 6 May 2015
A method for controlling the energy transmitted between two resonators of a system for contactless energy transmission comprises controlling the transmission power of a transmitter resonator contained in a primary part of the system. This is excited to osc...
https://drivepatents.com/patents/951402 · 8 Apr 2015
A power reception device includes a coil (22) and a core (21) having the coil (22) wound therearound, the core (21) including a stem portion (33) extending in a direction in which the winding axis (O1) extends, and having the coil (22) wound therearound, a...