Triune Systems, LLC

Triune Ip, LLC

National Semiconductor Corporation

Texas Instruments Corporation

Jonathan Robert Knight

Ross Eliot Teggatz

Wayne T Chen

Amer H Atrash

Brett E Smith

James Allen Kohout

Narasimhan Trichy

Andrew Blaszczak

Patrick Kawamura

Michael Sullivan

Luan Minh Vu

Bruno Kranzen

Jayendar Rajagopalan

Akihiko Miyanohara

Larry Bradley

Ken Moore

Emanuel Stingu

Yasushi Kitamura

Trichy Narasimhan

A resonant circuit dynamic optimization system is described herein that can exhibit improved system charging functionality, can have multi-input charging functionality, and can improve the efficiency and speed of charging electronic devices. The resonant circuit dynamic optimization system can comprise at least one antenna configured to receive or transmit an electromagnetic signal, at least one variable component, and at least one dynamic adjustment circuit. The dynamic adjustment circuit can adjust the variable component to thereby modify the power transfer efficiency of the electromagnetic signal.

Resonant circuit dynamic optimization system and method

Coupled inductor signal transfer systems are disclosed in which transmitter and receiver coils are inductively coupled in a configuration for wirelessly transferring power and/or data signals. In preferred implementations, the systems may be used for transmitting both power and data. Preferred embodiments of the invention have at least one multi-tap coil on the primary side and/or secondary side of the system. The selection of taps enables the effective size and/or number of coils to be dynamically changed according to operational needs.

Coupled inductor system having multi-tap coil

A wireless power transfer foreign object detector having, at least one secondary receiver coil, an adjustable load electrically coupled to the at least one secondary receiver coil, and at least one temperature sensor providing at least one temperature detection signal, wherein the at least one temperature sensor responsive to at least one thermal state of the at least one secondary receiver coil, and wherein foreign object detection is based at least in part upon the at least one temperature detection signal.

Method and system of wireless power transfer foreign object detection

Multiple coil systems and methods are disclosed in which transmitter and receiver inductors, or coils, are coupled in a configuration for wirelessly transferring data and/or power among them. In preferred implementations, the systems and methods are used for transmitting data using pairs of coupled coils. One preferred aspect of the invention is that the coils are not permanently affixed in physical proximity to one another, but can be moved and/or interchanged.

Multiple coil data transmission system

Data transmission systems and methods are disclosed in which a transmitter and a receiver, each having an inductor, are configured for wirelessly transferring data and power between them. Error detection is implemented for implementing error correction techniques by making corrections at the receiver, at the transmitter, or both. In preferred embodiments of the invention, error correction approaches include oversampling, power adjustments, and frequency adjustments. In preferred implementations, the systems and methods are used for transmitting both power and data using a single pair of inductors.

Inductive data communication

A remote energy transfer system is provided that is capable of wirelessly transmitting data and power through barriers. Generally, the remote energy transfer system comprises at least one power antenna, at least one data antenna, and at least one link controller operatively coupled to the power antenna and the data antenna. The link controller can be configured to at least partially control the energy transfer from the power antenna and the data transfer of the data antenna.

Remote energy transfer system

The invention provides advances in the arts with useful and novel driver methods. The invention provides circuit driver and control methods for relatively high-current drivers, usable with relatively low-voltage battery power sources. Preferred embodiments include one or more high series resistance capacitors electrically connected with a power source. A low resistance driver circuit regulates power supplied from the capacitors to the load.

Driver method

A system for power transfer is provided. In one exemplary embodiment, the system includes an inductive power device, such as a device that transmits or receives power over an inductive coupling. For example, an adjustable impedance is coupled to the inductive power device, where the adjustable impedance is used for dynamically controlling the power gain in the inductive power device, such as by damping power generated by circuit impedances, such as inductances, capacitances or resistances, and combinations thereof.

Tunable synchronous rectifier

A wireless power transfer foreign object detector having, at least one secondary receiver coil, an adjustable load electrically coupled to the at least one secondary receiver coil, and at least one temperature sensor providing at least one temperature detection signal, wherein the at least one temperature sensor is responsive to at least one thermal state of the at least one secondary receiver coil, and wherein foreign object detection is based at least in part upon the at least one temperature detection signal.

The invention provides integrated power supplies, circuit drivers, and control methods for relatively high-current drivers, usable with common battery power sources. Preferred embodiments include one or more high series resistance super-capacitors electrically connected with a power. A low resistance driver circuit regulates power supplied from the super-capacitors to the load.

Flash LED controller

A synchronous rectifier is arranged to rectify inductively coupled power using FETs (field effect transistors) to minimize the voltage drop of the rectifier, which minimizes power loss. Power loss is an important consideration in applications where fairly significant power is coupled to a device (such as a battery charger or other energy storage device) for a fairly short time (such as less than one hour) at a fairly low voltage (such as around 2.5 to 4.5 volts). Body diodes of the FETs can be used to supply power for bootstrapping and control logic for controlling the FETs.

Growing community of inventors

Tokyo, Japan

Jonathan Robert Knight