Transistor Devices, Inc.

Astrodyne Tdi

Gary Mulcahy

Tunc Icoz

John Santini

Matthew Joseph Fuhrmann

William Koehler

Thomas A Hansen

Vincent G Keiper, Iii

James Feely

Joseph Mancuso

Ruben Cobo Marzal

A filter device, method of manufacture and use thereof. The filter device comprises a foil-wound inductor formed by a first conductive foil strip having a first terminal and a second terminal, the first conductive foil strip wound around a core to form a plurality of winding layers such that the first terminal is proximate the core and the second terminal is located at the outermost winding layer, and a continuous dielectric insulating layer between the plurality of layers of the first conductive foil strip; and, a tunable capacitor formed by a second conductive foil strip at least partially encircling the outermost layer of the foil-wound inductor and a dielectric insulating layer disposed therebetween, the second conductive foil strip having a portion that can be trimmed to alter a capacitance between the second conductive foil strip and the first or second terminal of the foil-wound inductor. When used in a circuit, the tunable capacitor can be trimmed to compensate for parasitic capacitance associated with the foil-wound inductor.

Filter device having tunable capacitance, method of manufacture and use thereof

A power system and method of operating the same. In one embodiment, the power system includes a plurality of power converters configured to power a host system. The power system also includes a power converter controller configured to provide a status of and control the plurality of power converters and at least one system element of the host system responsive to a plurality of host system signals. The control includes a scripted sequence of events as function of a change of an operational condition of at least one of the plurality of power converters and the host system.

Highly adaptable power system

A power module and method of forming the same. The power module includes an extruded tube with internal and external fins, first and second opposing surfaces defining ends thereof, and an internal slot for housing a power converter. The power module includes a bottom plate having a first depression to receive a first O-ring to provide a first liquid-tight fluid seal at the first opposing surface for an electrically insulting oil encapsulating the power converter. The power module includes a cable interface plate having a second depression to receive a second O-ring to provide a second liquid-type fluid seal at the second opposing surface for the electrically insulting oil encapsulating the power converter. The power module includes an end cap to mate with the cable interface plate and accept a conduit fitting to enable an electrical cable to be routed from within the end cap to an external connection point.

Power module operable in a hazardous environment

A scalable liquid cooled power system using a number of modularized, hot-plug, hot-swap, and scalable liquid-cooled power conversion modules mounted on mating mounting assemblies. A modularized, scalable liquid coolant manifolds and liquid cooling management system provides coolant circulation through the power conversion modules. The system optionally includes a highly scalable system control and administration system, and optionally provides the facility for on-board liquid-to-air heat exchanger system, or off-board cooling using an external heat exchanger system.

Modular scalable liquid cooled power system

In some embodiments, an ICCP system includes an AC-DC rectifier receiving AC power from an AC power source and providing a DC output having a constant voltage or a constant current, a cathode connection electrically coupling the AC-DC rectifier to a structure to be protected by the ICCP system, current-emitting anodes arranged in parallel and receiving the DC output from the AC-DC rectifier, and a controller communicating with the AC-DC rectifier to set a maximum value for the constant voltage or constant current of the DC output. In other embodiments, an ICCP system includes a converter assembly including an AC-DC rectifier and a rectifier chassis enclosing and environmentally sealing the AC-DC rectifier. The ICCP system also includes an environmentally-sealed controller communicating with the AC-DC rectifier and an environmentally-protected Input-Output connection assembly. Junctions electrically connect the converter assembly, the environmentally-sealed controller, and the environmentally-protected connection assembly.

Systems and methods for impressed current cathodic protection

A functional heat exchanger structure provides a hermetic seal for the power electronics. The heat exchanger includes one or more features built into the design. The features include a closed loop liquid circuit, air, or extended surfaces built-in to the design to transfer heat from the heat generating devices, spring clips snapped in built-in slots to mount heat-generating devices, preformed threaded rails to mount the printed circuit board (PCB), electrical isolation between the heat sink/cold plate and the electrical components, a sealed enclosure to provide environmental protection for the electronic components, a mounting feature to mount the sealed enclosure onto an external surface, an opening to accept a snap-in style cover, a stackable design, and an easily manifoldable configuration.

Sealed enclosure for power electronics incorporating a heat exchanger

A circuit for connecting lower AC voltage-rated AC-DC power supplies with higher voltage power sources. A power line matching transformer connecting the source to the power supplies needs only to support the self-dissipation and output current mismatch between supplies. The circuit can also protect the line matching transformer from overheating in various fault scenarios.

Voltage adaptor for AC-DC power supply modules

Embodiments of the present invention relate to a low-output voltage converter, delivering voltage power less than 1 VDC, utilizing distributed secondary circuits. In one embodiment of the present invention, there is provided a voltage converter comprises a primary circuit for receiving an input voltage, comprising a plurality of primary windings arranged in series, a plurality of secondary circuits, each comprising a secondary winding for aligning with a primary winding to form a transformer, and each of the secondary circuits arranged in parallel, and an output for providing an output voltage down to, or less than 1 VDC.

Growing community of inventors

Flanders, NJ, United States of America

Gary Mulcahy