About 111 results
https://drivepatents.com/patents/993069 · 6 Feb 2013
As an aspect of the present invention, a noncontact power feeding apparatus includes: a power transmission resonator; and a power reception resonator configured to be magnetically coupled with the power transmission resonator by magnetic field resonance. T...
https://drivepatents.com/patents/993754 · 16 Jan 2013
An electrical charging system (ECS) to electrically charge a battery includes a power transmitter, an energy coupling arrangement, at least one electrical signal shaping device (ESSD) including a controller, and an alignment means. The arrangement includes...
https://drivepatents.com/patents/995729 · 28 Nov 2012
Provided is a reactor including a coil, and a core having an inner core portion arranged inside the coil and an outer core portion covering the outside of the coil. The inner core portion of the reactor has a higher saturation magnetic flux density than th...
https://drivepatents.com/patents/995853 · 21 Nov 2012
The device has a registration unit for localization of electric motor vehicle on charging section. A switching unit (5) is provided to electrically connect a power source (3) to primary conductor loops of the charging section through a power supply line (4...
https://drivepatents.com/patents/996190 · 7 Nov 2012
The present invention relates to a wireless power transmission method for preventing frequency interference, and more particularly, to a wireless power transmitter and a wireless power transmission method for preventing frequency interference that flexibly...
https://drivepatents.com/patents/996842 · 24 Oct 2012
A shield (115) for a coil unit (400) to carry out non-contact power feeding by a resonance method includes a magnetic sheet (192) capable of reducing a magnetic field, and a copper shield (191) capable of reducing both an electric field and magnetic field....
https://drivepatents.com/patents/1000451 · 11 Jul 2012
In this non-contact power feeding apparatus 15, a power feeding side circuit 6 is provided with a power transmission coil 3 and a parallel capacitor 11 to provide a parallel resonance circuit, while a power receiving side circuit 7 is provided with a power...
https://drivepatents.com/patents/1000421 · 11 Jul 2012
A primary coil (12), a primary resonance coil (13), a secondary resonance coil (14), a secondary coil (15), and a load (16) form a resonant system (20). A frequency matching section (24; 24, 30, 31) is configured to match the resonant frequency of a resona...
https://drivepatents.com/patents/1003924 · 28 Mar 2012
Embodiments of the invention are directed to a system for recharging a mobile robot (102) as a power source. In one embodiment the system comprises a power transmission link having a first end positioned at a selectively located charging station (106) and ...
https://drivepatents.com/patents/1005559 · 8 Feb 2012
Power is contactlessly supplied from a power transmitting portion (12) to a power receiving portion (14). A transmitting efficiency detecting portion (18) detects the transmitting efficiency, and a determining portion (20) determines whether the transmitti...