About 151 results
https://drivepatents.com/patents/1388117 · 3 Jun 2026
Provided are a device and method for performing authentication in a wireless power transfer system. Provided is an authentication method in a wireless power transfer system including receiving a first packet including indication information on whether a ta...
https://drivepatents.com/patents/1114902 · 28 May 2026
An example wireless power receiving device may include a receiving coil, a rectifier, a converter, a battery, and a processor. The processor may be configured to control the converter such that an input voltage provided from the rectifier to the converter ...
https://drivepatents.com/patents/1114903 · 28 May 2026
A system and method for inductively providing electrical power at a plurality of power levels to electrical devices. The system may include an inductive power outlet unit conductively coupled to a power supply and an inductive power receiver unit associate...
https://drivepatents.com/patents/1114901 · 28 May 2026
In an embodiment, a semiconductor device is disclosed that includes a buffer circuit that is configured to selectively output a charge signal to an inductor-capacitor node of a power driver to charge the inductor-capacitor node to a predetermined voltage l...
https://drivepatents.com/patents/964997 · 26 May 2026
A power supply device that wirelessly transmits power includes: a DC power source; an inverter circuit connected to the DC power source; a resonance circuit connected to the inverter circuit and including a power transmission coil; sensors that detect a cu...
https://drivepatents.com/patents/964996 · 26 May 2026
A power transmitter () provides power to a power receiver () via a power transfer signal generated by a drive signal fed to a transmitter coil (). A first controller () of the power transmitter () controls a parameter of the drive signal in accordance with...
https://drivepatents.com/patents/1387730 · 20 May 2026
Method for energy management of a battery-operated radio node for bidirectional data transmission in a Long Range Wide Area Network (LoRaWAN) between the radio node and a network server and/or an application server via at least one gateway, wherein the rad...
https://drivepatents.com/patents/1381968 · 30 Apr 2026
Polyphase wireless power transfer systems are provided. The transfer system may be used for charging hybrid and electric vehicles. The systems are capable of transferring over 50 KW over an air gap of 15 cm. The systems use a rotating magnetic field to tra...
https://drivepatents.com/patents/1381528 · 23 Apr 2026
A power distribution device that couples to storage units is provided. The power distribution device a battery charger that indirectly charges batteries, such as for personal electronic devices. The device includes a top panel with a recess that receives t...
https://drivepatents.com/patents/1381211 · 16 Apr 2026
A power transmitter () provides power to a power receiver () via an inductive power transfer signal which is also used by the power receiver () for communication by load modulation. The power transmitter () comprises a load detector () detecting load varia...