Eaton Corporation

Eaton Intelligent Power Limited

Eaton Capital Unlimited Company

Cooper Technologies Company

Eaton Coroporation

Eaton Capital

Birger Pahl

Jerome Kenneth Hastings

Steven Christopher Schmalz

Charles John Luebke

James E Hansen

Joseph Charles Zuercher

Chaitanya Bhalwankar

Dale Louis Gass

Xin Zhou

Tiefu Zhao

Archit Agarwal

David Kolker

Jun Xu

Davin Robert Lee

Yahan Hua

Robert Yanniello

Yilei Gu

Galen Chui

Prasanna S Nirantare

Tangshun Wu, Jr

Brian Thomas Pier

Milind Suresh Kothekar

William Edward Berkopec

Steve Schmalz

John Joseph Shea

Mark Allan Juds

James Jeffery Benke

Paul Jason Rollmann

Kevin Lynn Parker

David J Gritter

Edward Louis Wellner

Francois Jean Marchand

Vijay Bhavaraju

William J Janutka

Xiaojun Wang

Thomas J Schoepf

Slobodan Krstic

John Albert Kovacich

Jack Gu

Engelbert Hetzmannseder

John Brian Schneider

Mark G Solveson

Scott A Reid

Zelin Xu

Gerald Zheng

Lian Q Zou

Traver B Gumaer

Matthew F Planning

Peter J McGinnis

Bobby Leonard Compton

Bruce Wu

Edward Francis Buck

John Edmund Dunne

David L McClanahan

Edward T Gisske

B Thomas Pier

Victor E Shtaida

Wayne Scott Kaboord

Ronald R Jahn

Richard G Bernhard

Fred Joseph Begale

Qingjie Zheng

Gerson Nojima

Zhichao Wu

Guangqi Zhu

Susan A Glowinska

James R Sumara

Gilbert G Jones

Qinjie Zheng

Robert H Mathews

Robert R Brzycki

Karen Sjaarda Bland

Thomas Edward Strunsee

Prasanna Sharadchandra Nirantare

Dale L Gass

John B Schneider

Milind Kothekar

Ronald Richard Jahn

An apparatus includes a first coil, a second coil having a first side facing a first side of the first coil, a first radial array of magnetic material bodies disposed on a second side of the first coil, and a second radial array of magnetic material bodies disposed on a second side of the second coil such that respective magnetic material bodies of the second radial array overlap respective magnetic material bodies of the first radial array. The apparatus may be included in a wireless power transfer system.

Wireless power transfer apparatus with radially arrayed magnetic structures

An electrical device includes a first terminal structured to electrically connect to a power source; a second terminal structured to electrically connect to a load; a voltage sensor electrically connected to a point between the first and second terminals and being structured to sense a voltage at the point between the first and second terminals; a switch electrically connected between the first terminal and the second terminal; and a control unit structured to detect a power quality event in the power flowing between the first and second terminals based on the sensed voltage and to control a state of the switch based on the detected power quality event.

Electrical device with power quality event protection and associated method

A method of monitoring an electrical system may include providing a ground fault detection unit, operating a transformer rectifier unit to provide DC power to a load, sensing, via a current sensor, a ground current at or about an output of the transformer rectifier, and/or monitoring a sensor output from the current sensor via the ground fault detection circuit. The ground fault detection circuit may be configured to detect ground faults at frequencies of at least 30 kHz.

Electrical system

An electrical system includes a ground fault detection unit including a low frequency ground fault detection circuit and a high frequency ground fault detection circuit, and/or a ground fault control unit connected to the low frequency ground fault detection circuit and the high frequency ground fault detection circuit. The ground fault unit may be configured to detect a ground fault according to an output of the low frequency ground fault detection circuit and/or an output of the high frequency ground fault detection circuit. The electrical system may include a first current sensor connected to the low frequency ground fault detection circuit and/or a second current sensor connected to the high frequency ground fault detection circuit.

The present invention provides a receiving circuit for magnetic coupling resonant wireless power transmission comprising: a resonant circuit, which comprises a resonant coil and a resonant capacitor; a rectifying circuit, the input of which is electrically connected to the two terminals of the resonant capacitor; a storage capacitor, the two terminals of which are electrically connected to the output of rectifying circuit; and a DC-DC converter, the input of which is electrically connected to the two terminals of the storage capacitor and the output of which is electrically connected to a rechargeable battery. The receiving circuit for magnetic coupling resonant wireless power transmission of the present invention can save energy and has high charge efficiency.

Receiving circuit for magnetic coupling resonant wireless power transmission

A wirelessly powered airfield lighting device includes a base can and a wireless power transmitter disposed in the base can. The wireless power transmitter can wirelessly transmit power. The lighting device further includes an isolation transformer disposed inside the base can. The isolation transformer is electrically coupled to and between the wireless power transmitter and a power source. The lighting device also includes a light fixture that includes a base disposed on and sealing the top end of the base can and that includes an electronics compartment. The light fixture further includes a wireless power receiver disposed in the electronics compartment and that wirelessly receives power from the wireless power transmitter. The light fixture also includes a light source that receives power from the wireless power receiver.

Wireless power for airfield lighting

A method of operating an AC to DC converter circuit can be provided by changing a configuration of a DC output filter circuit to reshape a current waveform in a rectifier circuit, included in the AC to DC converter circuit, based on an operating efficiency of the AC to DC converter circuit. Related circuits and articles of manufacture are also disclosed.

Methods, circuits and articles of manufacture for configuring DC output filter circuits

An apparatus includes an enclosure and a coil assembly in the enclosure. The coil assembly includes a magnetic core and a coil disposed on the magnetic core. The magnetic core is positioned adjacent a wall of the enclosure such that a direction of a main flux path in the magnetic core is through at least one portion of the wall having a magnetic permeability greater than air. Such an arrangement may be used for a wireless power receiver unit configured to be installed in an equipment rack in data center applications.

Wireless power transfer apparatus using enclosures with enhanced magnetic features and methods of fabricating the same

A wireless power transfer circuit can include an input port that can be configured to couple to a power source, an ac excitation circuit having a port coupled to the input port, a resonant circuit coupled to the ac excitation circuit, and a controller circuit that can be configured to operate the ac excitation circuit. The wireless power transfer circuit can operate to inductively transfer power from the resonant circuit and the controller circuit can be configured to change an operating frequency of the ac excitation circuit and change a configuration of the resonant circuit responsive a change in indicated efficiency of the wireless power transfer.

Methods, circuits and articles of manufacture for controlling wireless power transfer responsive to controller circuit states

A method of providing wireless power transfer can include receiving multi-phase power at a transmitter portion of a multi-phase wireless power transfer system that is associated with an electrical equipment rack that is configured to house a plurality of electrical components and wirelessly transferring the multi-phase power from the transmitter portion to a receiver portion of the multi-phase wireless power transfer system at a power level that is configured to operate the plurality of electrical components.

Methods and circuits configured to provide for multi-phase wireless power transfer

An AC arc fault detection module includes an LF current section, an LF voltage section, and an HF current section having a plurality of outputs, each output being associated with a respective one of a plurality of frequency sub-bands. The HF current section is structured to, for each of the frequency sub-bands, (i) detect a rise in energy of the frequency sub-band above a first predetermined threshold level for at least a certain amount of time and (ii) cause the associated output to indicate a rise in energy detection in response to detecting the rise in energy above the associated threshold level for at least the associated certain amount of time. The module includes a processing device structured to determine whether an AC arc fault has occurred based on the outputs from the LF and HF current and LF voltage sections.

Arc fault detection system and method and circuit interrupter employing same

A DC arc fault detection module includes an LF current section, an LF voltage section, and an HF current section having a plurality of outputs, each output being associated with a respective one of a plurality of frequency sub-bands. The HF current section is structured to, for each of the frequency sub-bands, (i) detect a rise in energy of the frequency sub-band above a first predetermined threshold level for at least a certain amount of time and (ii) cause the associated output to indicate a rise in energy detection in response to detecting the rise in energy above the associated threshold level for at least the associated certain amount of time. The module includes a processing device structured to determine whether a DC arc fault has occurred based on the outputs from the LF and HF current and LF voltage sections.

A DC arc fault detection module includes a current detecting section having at least one output, wherein the current detecting section is structured to determine whether at least one signal based on a current measured from a DC supply line exceeds at least one corresponding predetermined threshold level and cause the at least one output to indicate that the threshold level has been exceeded. The module also includes a processing device structured to: (i) receive the at least one output, (ii) determine whether an arc fault in the DC electrical system has occurred based on at least the at least one output, (iii) determine an estimation of background noise based on at least one signal indicative of a current on the DC supply line, and (iv) adjust the at least one corresponding predetermined threshold level based on the estimation of background noise.

Growing community of inventors

Milwaukee, WI, United States of America

Birger Pahl