Hamilton Sundstrand Corporation

Bourns Incorporated

Ernest Thompson

Adam Michael White

Mark W Metzler

Dwight D Schmitt

Jef William Good

John Huss

Ken McDonald

A dual feeder circuit system for supplying electrical power can include one or more feeder groups, each feeder having a first wire and a second wire connected between a source terminal and a load terminal to carry the same electrical signal on both wires. The system can include one or more current transformers disposed on one or more of the feeders groups such that the current transformer is disposed around both the first wire and the second wire. The first wire can be passed directly through a first side of the current transformer to allow current to travel through the current transformer in a first direction, and the second wire can include a loop and be passed through a second side of the current transformer to allow current to travel through the current transformer in an second direction opposite the first direction.

Dual feeder systems having current transformers

Embodiments of the invention provide for a system, method, and controller for operating a harmonic regulator with loop delay compensation. Some embodiments include receiving, at a controller, voltage feedback from a power system, and applying a harmonic regulator to each distortion frequency to be compensated. Embodiments also include applying a predetermined delay to an output of the harmonic regulator, scaling the delayed output and adding it to a power source voltage reference waveform, and providing condition power to a load, using the conditioned power source voltage reference waveform.

Harmonic regulator with loop delay compensation

A method of controlling an inverter includes generating a neutral-phase reference waveform, generating a neutral-phase midpoint compensation waveform using the neutral-phase reference waveform, and generating a neutral-phase compensated duty cycle waveform using the neutral-phase midpoint compensation waveform. Neutral-phase switch command signals are generated for switches of a neutral-phase of the inverter using the neutral-phase compensated duty cycle waveform. Inverters and computer program products are also described.

Multilevel inverters and methods of controlling multilevel inverters

An immersion cooling arrangement includes a housing containing a liquid coolant. An electrical device is submerged within the liquid coolant. A printed wiring board is seated on the housing and separates the coolant from the environment external to the housing to provide penetration-free electrical communication between a power source and the electrical device.

Immersion cooling arrangements

A clockspring device that includes an outer housing with a circumferential wall that defines a chamber. The circumferential wall includes a vertically-oriented track. A rotor having a keyway is configured to fit at least partially within the outer housing. A coil of cable is positioned within the chamber and has a first end and a second end. The first end of the coil of cable is attached to the rotor and the second end of the coil of cable is attached to the outer housing. A clip having a first end, a second end, and a middle portion is configured to fit within the vertically-oriented track. The middle portion of the clip has two flexible tabs. Each flexible tab has a portion that extends away from the middle portion. The flexible tabs are compressed or bent in order to insert the clip in the track and slide it along the track and into an engaged position. When the clip is in the engaged position, the position of the rotor is fixed with respect to the outer housing. The clip may be moved to a disengaged position where it is still positioned partly within the track. When the clip is in the disengaged position, the rotor is free to move relative to the outer housing. The circumferential wall of the housing may also include one or more ribs and two spring clips to help center the clockspring device when it is installed in an assembly, such as a steering gear assembly.

Growing community of inventors

Janesville, WI, United States of America

Ernest Thompson