Patents by Inventor Evgeny N. Holmansky
Evgeny N. Holmansky has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10727757Abstract: A power converter includes an outer housing formed of dielectric material and including a low voltage compartment and a high voltage compartment is disclosed. The power converter also includes a low voltage DC-to-AC converter disposed in the low voltage compartment, a first coil in the low voltage compartment, a first conductive shield element lining an outer wall of the low voltage compartment, the first conductive shield element being electrically coupled to an electrical input of the DC-to-AC converter and a second conductive shield element lining an outer wall of the high voltage compartment.Type: GrantFiled: March 7, 2019Date of Patent: July 28, 2020Assignee: RAYTHEON COMPANYInventors: Boris S. Jacobson, Evgeny N. Holmansky, Lev Volfson
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Publication number: 20190207529Abstract: A power converter includes an outer housing formed of dielectric material and including a low voltage compartment and a high voltage compartment is disclosed. The power converter also includes a low voltage DC-to-AC converter disposed in the low voltage compartment, a first coil in the low voltage compartment, a first conductive shield element lining an outer wall of the low voltage compartment, the first conductive shield element being electrically coupled to an electrical input of the DC-to-AC converter and a second conductive shield element lining an outer wall of the high voltage compartment.Type: ApplicationFiled: March 7, 2019Publication date: July 4, 2019Inventors: Boris S. Jacobson, Evgeny N. Holmansky, Lev Volfson
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Patent number: 10270356Abstract: A power converter includes an outer housing formed of dielectric material and including a low voltage compartment and a high voltage compartment is disclosed. The power converter also includes a low voltage DC-to-AC converter disposed in the low voltage compartment, a first coil in the low voltage compartment, a first conductive shield element lining an outer wall of the low voltage compartment, the first conductive shield element being electrically coupled to an electrical input of the DC-to-AC converter and a second conductive shield element lining an outer wall of the high voltage compartment.Type: GrantFiled: August 9, 2016Date of Patent: April 23, 2019Assignee: RAYTHEON COMPANYInventors: Boris S. Jacobson, Evgeny N. Holmansky, Lev Volfson
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Publication number: 20180048244Abstract: A power converter includes an outer housing formed of dielectric material and including a low voltage compartment and a high voltage compartment is disclosed. The power converter also includes a low voltage DC-to-AC converter disposed in the low voltage compartment, a first coil in the low voltage compartment, a first conductive shield element lining an outer wall of the low voltage compartment, the first conductive shield element being electrically coupled to an electrical input of the DC-to-AC converter and a second conductive shield element lining an outer wall of the high voltage compartment.Type: ApplicationFiled: August 9, 2016Publication date: February 15, 2018Inventors: Boris S. Jacobson, Evgeny N. Holmansky, Lev Volfson
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Patent number: 8227939Abstract: A reconfigurable multi-cell power converter and method wherein a set of cells are connected between an input bus and a load in an input series output parallel configuration or in an input parallel output series configuration. Each cell includes a primary side reconfigurable between series and parallel operation and a secondary side also reconfigurable between series and parallel operation. Switching circuitry is configured to reconfigure the primary side of each cell between series and parallel operation and vice versa and also to reconfigure the secondary side of each cell between series and parallel operation and vice versa. A controller is configured to actuate the switching circuitry depending a voltage on the input bus and/or cell condition to reconfigure all the cell primary sides and/or secondary sides while maintaining a desired input series output parallel or input parallel output series connection for the set of cells.Type: GrantFiled: September 16, 2009Date of Patent: July 24, 2012Assignee: Raytheon CompanyInventors: Boris S. Jacobson, Evgeny N. Holmansky
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Patent number: 7986535Abstract: A method of providing power to a load is provided. A first series resonant converter is provided. A second SRC is operably coupled to the first SRC in a cascade connected arrangement. First and second zero voltage switching (ZVS)-assistance networks are operably coupled between the first SRC and the second SRC, such that the first and second ZVS-assistance networks are providing first and second ZVS-assistant currents flowing from each ZVS-assistance network to the cascade connected arrangement of SRCs. Power from a power source is received at the cascade connected arrangement of first and second SRCs, power from a power source. The cascade connected arrangement of first and second SRCs supplies an output voltage to the load in response to receiving power from the power source.Type: GrantFiled: July 10, 2008Date of Patent: July 26, 2011Assignee: Raytheon CompanyInventors: Boris S. Jacobson, Evgeny N. Holmansky
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Publication number: 20100314937Abstract: A reconfigurable multi-cell power converter and method wherein a set of cells are connected between an input bus and a load in an input series output parallel configuration or in an input parallel output series configuration. Each cell includes a primary side reconfigurable between series and parallel operation and a secondary side also reconfigurable between series and parallel operation. Switching circuitry is configured to reconfigure the primary side of each cell between series and parallel operation and vice versa and also to reconfigure the secondary side of each cell between series and parallel operation and vice versa. A controller is configured to actuate the switching circuitry depending a voltage on the input bus and/or cell condition to reconfigure all the cell primary sides and/or secondary sides while maintaining a desired input series output parallel or input parallel output series connection for the set of cells.Type: ApplicationFiled: September 16, 2009Publication date: December 16, 2010Inventors: Boris S. Jacobson, Evgeny N. Holmansky
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Patent number: 7839023Abstract: Methods and apparatus for a circuit including first and second energy sources, a rectifier coupled to the first and second energy sources, first and second energy storage devices coupled end-to-end across the positive and negative rails, and a single three-level inverter coupled to the rectifier for providing three-phase sinusoidal output voltages.Type: GrantFiled: November 8, 2007Date of Patent: November 23, 2010Assignee: Raytheon CompanyInventors: Boris S. Jacobson, Evgeny N. Holmansky
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Publication number: 20090021081Abstract: Methods and apparatus for a circuit including first and second energy sources, a rectifier coupled to the first and second energy sources, first and second energy storage devices coupled end-to-end across the positive and negative rails, and a single three-level inverter coupled to the rectifier for providing three-phase sinusoidal output voltages.Type: ApplicationFiled: November 8, 2007Publication date: January 22, 2009Inventors: Boris S. Jacobson, Evgeny N. Holmansky
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Publication number: 20090021966Abstract: A method of providing power to a load is provided. A first series resonant converter is provided. A second SRC is operably coupled to the first SRC in a cascade connected arrangement. First and second zero voltage switching (ZVS)-assistance networks are operably coupled between the first SRC and the second SRC, such that the first and second ZVS-assistance networks are providing first and second ZVS-assistant currents flowing from each ZVS-assistance network to the cascade connected arrangement of SRCs. Power from a power source is received at the cascade connected arrangement of first and second SRCs, power from a power source. The cascade connected arrangement of first and second SRCs supplies an output voltage to the load in response to receiving power from the power source.Type: ApplicationFiled: July 10, 2008Publication date: January 22, 2009Inventors: Boris S. Jacobson, Evgeny N. Holmansky
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Patent number: 6634421Abstract: A fluid cooling device, and a method for manufacturing the fluid cooling device, are disclosed. The fluid cooling device includes a plurality of cold plate members, each having a plurality of imperforate plate portions and perforate portions arranged in a line; and, at least one connector for connecting the plate portions together at one end thereof. The cold plate members are arranged in a stack, wherein respective plate portions of each cold plate member are in registration with perforate portions formed in its adjacent cold plate members in the stack. The fluid cooling device can provide very high heat transfer by close clearance laminar developing flow, thereby increasing the thermal performance of the fluid cooling device while maintaining low pressure drop.Type: GrantFiled: March 9, 2001Date of Patent: October 21, 2003Assignee: SatCon Technology CorporationInventors: Edward J. Ognibene, Evgeny N. Holmansky, Douglas L. Johnson, Kevin J. Donegan
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Patent number: 6452289Abstract: A grid-linked power supply is described. An inverter, at least one distributed energy source to meet normal, non-peak power demand, a connection to a public utility grid to meet peak power demand requirements, and a converter for regulating delivery of power from the distributed energy source or the public utility grid are connected by bus lines. A topology for the grid-linked power supply has an inverter and a DC/DC converter that is connected to the distributed energy source. The inverter and converter are connected by bus lines, and a bias voltage is provided to select drawing power from the distributed energy source or the public utility grid.Type: GrantFiled: July 10, 2000Date of Patent: September 17, 2002Assignee: SatCon Technology CorporationInventors: Geoffrey B. Lansberry, Evgeny N. Holmansky
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Publication number: 20010035285Abstract: A fluid cooling device, and a method for manufacturing the fluid cooling device, are disclosed. The fluid cooling device includes a plurality of cold plate members, each having a plurality of imperforate plate portions and perforate portions arranged in a line; and, at least one connector for connecting the plate portions together at one end thereof. The cold plate members are arranged in a stack, wherein respective plate portions of each cold plate member are in registration with perforate portions formed in its adjacent cold plate members in the stack. The fluid cooling device can provide very high heat transfer by close clearance laminar developing flow, thereby increasing the thermal performance of the fluid cooling device while maintaining low pressure drop.Type: ApplicationFiled: March 9, 2001Publication date: November 1, 2001Inventors: Edward J. Ognibene, Evgeny N. Holmansky, Douglas L. Johnson, Kevin J. Donegan
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Patent number: 6273186Abstract: A high-density, staggered pin fin array, and a method for manufacturing the pin fin array, are disclosed. The pin fin array includes a plurality of fin members, each having a plurality of elongated, pin-shaped fins arranged in a row; and, at least one connector for connecting the fins together, each at one end thereof. The plurality of fin members is arranged in a stack, wherein respective fins of each fin member are in registration with slots formed in its adjacent fin members in the stack. The method for manufacturing the pin fin array includes forming a plurality of fin members from a raw planar, tape, or thin layer stock, positioning the fin members relative to each other so that the respective fins of each fin member are in registration with the slots formed in adjacent fin members, and joining each fin member with the adjacent fin members.Type: GrantFiled: March 13, 2000Date of Patent: August 14, 2001Assignee: SatCon Technology CorporationInventors: Edward J. Ognibene, Evgeny N. Holmansky, Douglas L. Johnson