General Electric Company

Andrew David McArthur

Mark Eugene Shepard

Qin Chen

Alan Carroll Lovell

Todd David Greenleaf

Benjamin David Laskowski

Ahmed My Cheta

Seth Andrew Hendrickson

Patrick Nkrumah Adasa

Mohamed Ahmed Aljahmi

A device includes a printed circuit board (PCB). The device may also include a high voltage coil disposed on the PCB and a low voltage coil disposed on the PCB. Further, a conductive shield forms a three-dimensional enclosure around the high voltage coil and confines an electric field generated by the device to the PCB.

System and method for reducing partial discharge in high voltage planar transformers

A system may include a controller that may control operations of a device according to a control loop and characterize a frequency response of the device while the device is operating. The controller may characterize the frequency response by adding a perturbation signal to any signal in the control loop. The controller may then determine a first transformed signal by performing a first discrete Fourier transform on a first signal in the control loop at a frequency of the perturbation signal and determine a second transformed signal by performing a second discrete Fourier transform on a second signal in the control loop at the frequency of the perturbation signal. The controller may then determine the frequency response at the frequency by comparing a first amplitude and a first phase of the first transformed signal to a second amplitude and a second phase of the second transformed signal.

Online frequency response characterization system and method

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Salem, VA, United States of America

Andrew David McArthur