About 40 results
https://drivepatents.com/patents/971956 · 30 Jul 2014
A power supply device (2) is provided with a push-type power generator (4). When a pushbutton (5) on the push-type power generator (4) is pushed, a variable voltage is generated by a piezoelectric element (6) that excites a primary coil (L1). A high-freque...
https://drivepatents.com/patents/978304 · 19 Feb 2014
A wireless power supply system (101) transmits power as magnetic field energy from a power supplying resonance coil (105) to a power receiving resonance coil (108) by resonating the power supplying resonance coil (105) and the power receiving resonance coi...
https://drivepatents.com/patents/979290 · 29 Jan 2014
An in-vehicle charger includes a case (7) whose one face having an opening, a lid (8) that covers the opening (6) of the case (7) in an openable and closable manner, a charging coil (9) that is provided in an inner portion of the case (7) facing the lid (8...
https://drivepatents.com/patents/979394 · 22 Jan 2014
A cordless charging apparatus is provided. The cordless charging apparatus includes a cordless power reception resonator including a feeding connector for electric feeding, and a ground connector for grounding. The ground connector is spaced apart from a c...
https://drivepatents.com/patents/979617 · 15 Jan 2014
The present invention relates to an apparatus and method for detecting foreign objects in a wireless power transmission system. This specification provides a wireless power reception apparatus for detecting foreign objects, including a power measurement un...
https://drivepatents.com/patents/980137 · 1 Jan 2014
A wireless charging apparatus provided in an electronic device is provided. The wireless charging apparatus includes a charging resonance unit for wireless charging; a driving circuit unit to which the charging resonance unit is connected and to which an i...
https://drivepatents.com/patents/984159 · 4 Sep 2013
Disclosed is a method for controlling a wireless power receiver including a charging unit. The method includes receiving wireless power, rectifying the received wireless power and outputting Direct Current (DC) wireless power, and determining whether the v...
https://drivepatents.com/patents/984714 · 3 Jul 2013
To reliably detect the setting down of a foreign object on a charging platform using a simple circuit configuration. To efficiently transmit power from a power transmission coil to a power receiving coil while charging a device. In this non-contact chargin...
https://drivepatents.com/patents/991227 · 1 May 2013
Provided is a received power conversion device for a resonant wireless charging system, including a wireless power receiver for receiving wireless power from a wireless power transmission device, a rectifier for rectifying power in an Alternating Current (...
https://drivepatents.com/patents/985045 · 17 Apr 2013
A wireless power transmitter according to an embodiment includes a coil and a capacitor which resonate with a wireless power receiver. The coil includes a plurality of cell groups and a core which connects the cell groups with each other. Each of the cell ...