About 151 results
https://drivepatents.com/patents/960735 · 13 May 2015
A wireless power supply system is a system wirelessly supplying electric power through electromagnetic waves. The wireless power supply system includes a power transmitter (1) transmitting an electromagnetic wave (2), and a plurality of power receivers (3)...
https://drivepatents.com/patents/952653 · 14 Jan 2015
A primary coil (L1) is excited by selectively using: a first resonance frequency (AL) near a frequency determined by the primary coil (L1) and a primary-side capacitor(C), said primary coil (L1) being placed in a power-supply area (AR); and a second resona...
https://drivepatents.com/patents/966952 · 26 Nov 2014
The present invention relates to a method (400) for transfer of power and data, in an arrangement comprising a first circuit (102) comprising a first inductor (106) and a second circuit (104) comprising a second inductor (108), wherein the circuits (102, 1...
https://drivepatents.com/patents/967646 · 5 Nov 2014
A control method of a wireless power transmitting unit transmitting charging power to a wireless power receiving unit is provided. The control method includes receiving first signals from one or more wireless power receiving units; classifying wireless pow...
https://drivepatents.com/patents/967559 · 5 Nov 2014
A control method for transmitting charging power to a wireless power receiver in a wireless power transmitter is provided. The control method includes receiving a Power Transmission Unit (PTU) searching signal for searching for a wireless power transmitter...
https://drivepatents.com/patents/967948 · 29 Oct 2014
Power transfer system comprising a transfer pick-up circuit for inductively picking up power from a cable carrying an alternating supply current. The power transfer system comprises a first circuit comprising the secondary winding of a transformer for prov...
https://drivepatents.com/patents/968577 · 22 Oct 2014
The present disclosure relates to a wireless power transmission apparatus, which enables bidirectional communication with electronic devices without the implementation of additional elements through the wireless power transmission apparatus modulating a wi...
https://drivepatents.com/patents/969008 · 8 Oct 2014
A power transmitting apparatus that performs power transmission to a power receiving apparatus includes an amplifier including a switching element, receives a load power amount from the power receiving apparatus, detects a value for evaluating the efficien...
https://drivepatents.com/patents/969667 · 24 Sep 2014
A control method of a wireless power receiving unit receiving charging power from a wireless power transmitting unit to perform wireless charging is provided. The control method includes receiving the charging power from the wireless power transmitting uni...
https://drivepatents.com/patents/970022 · 17 Sep 2014
A method for controlling a wireless power transmitter that transmits charging power to a wireless power receiver is provided. The method includes driving the wireless power transmitter; determining whether latch fault mode entry conditions are met, in whic...