Patents by Inventor Zeljko Arbanas

Zeljko Arbanas 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).

  • Patent number: 6147885
    Abstract: A method and apparatus for controlling the providing of conditioned AC power, with the conditioned AC power being capable of being provided on a continuous basis. Unconditioned AC voltage is received by transverters. The transverters convert the unconditioned AC voltage into a transverter AC output voltage. The transverter AC output voltage is monitored by current and voltage sensors. A transverter control signal is developed in response to changes in the current and voltage sensing in comparison with a reference signal. The transverter control signal then regulates conversion of the transverter AC output voltage into the desired conditioned AC output voltage. In multi-phase AC voltage systems conditioned AC voltages for each phase are provided.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: November 14, 2000
    Assignee: Digital Equipment Corporation
    Inventors: Gerald J. Brand, Don L. Drinkwater, James M. Simonelli, Zeljko Arbanas
  • Patent number: 5889666
    Abstract: A method and apparatus for controlling the providing of conditioned AC power, with the conditioned AC power being capable of being provided on a continuous basis. Unconditioned AC voltage is received by transverters. The transverters convert the unconditioned AC voltage into a transverter AC output voltage. The transverter AC output voltage is monitored by current and voltage sensors. A transverter control signal is developed in response to changes in the current and voltage sensing in comparison with a reference signal. The transverter control signal then regulates conversion of the transverter AC output voltage into the desired conditioned AC output voltage. In multi-phase AC voltage systems conditioned AC voltages for each phase are provided.
    Type: Grant
    Filed: December 3, 1997
    Date of Patent: March 30, 1999
    Assignee: Digital Equipment Corporation
    Inventors: Gerald J. Brand, Don L. Drinkwater, James M. Simonelli, Zeljko Arbanas
  • Patent number: 5764503
    Abstract: A method and apparatus for controlling the providing of conditioned AC power, with the conditioned AC power being capable of being provided on a continuous basis. Unconditioned AC voltage is received by transverters. The transverters convert the unconditioned AC voltage into a transverter AC output voltage. The transverter AC output voltage is monitored by current and voltage sensors. A transverter control signal is developed in response to changes in the current and voltage sensing in comparison with a reference signal. The transverter control signal then regulates conversion of the transverter AC output voltage into the desired conditioned AC output voltage. In multi-phase AC voltage systems conditioned AC voltages for each phase are provided.
    Type: Grant
    Filed: November 30, 1994
    Date of Patent: June 9, 1998
    Assignee: Digital Equipment Corporation
    Inventors: Gerald J. Brand, Don L. Drinkwater, James M. Simonelli, Zeljko Arbanas
  • Patent number: 5388028
    Abstract: A low impedance interconnection assembly for use with high frequency switching power semiconductor devices includes a low inductance modular capacitor, multi-layer planar bus structure and semiconductor switching devices assembled as a laminated unitary structure. Terminals electrically and physically connect the positive electrode of the modular capacitor to the positive DC voltage potential carried by the bus structure and the positive DC input of the semiconductor switch and other terminals electrically and mechanically couple the negative electrode of the modular capacitor to the negative DC voltage potential layer of the bus structure and the negative DC input of the switching device. The low inductance modular capacitor is made of a number of capacitor elements having their respective positive electrodes bonded to a copper foil pattern strip to define a positive electrode and their respective negative electrode terminals to a second copper foil strip to define the negative electrode.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: February 7, 1995
    Assignee: Kaman Electromagnetics Corporation
    Inventor: Zeljko Arbanas
  • Patent number: 5313363
    Abstract: A low impedance interconnection assembly for use with high frequency switching power semiconductor devices includes a modular capacitor, multi-layer bus structure and semiconductor switching devices assembled as a laminated unitary structure. Terminals electrically and physically connect the positive electrode of the modular capacitor to the positive DC voltage potential carried by the bus structure and the positive DC input of the semiconductor switch and other terminals electrically and mechanically couple the negative electrode of the modular capacitor to the negative DC voltage potential layer of the bus structure and the negative DC input of the switching device. The modular capacitor is made of a number of capacitor elements having their respective positive electrodes bonded to a copper foil pattern strip to define a positive electrode and their respective negative electrode terminals to a second copper foil strip to define the negative electrode.
    Type: Grant
    Filed: July 28, 1993
    Date of Patent: May 17, 1994
    Assignee: EML Research, Inc.
    Inventor: Zeljko Arbanas
  • Patent number: 5260864
    Abstract: An inverter circuit configurable between 120 VAC output and 240 VAC output using the same components. The inverter is configured as two half bridges in parallel for 120 VAC and as a single full bridge for 240 VAC operation.
    Type: Grant
    Filed: June 10, 1992
    Date of Patent: November 9, 1993
    Assignee: Digital Equipment Corporation
    Inventors: James M. Simonelli, Zeljko Arbanas
  • Patent number: 5184281
    Abstract: This invention relates to a heat dissipation apparatus for cooling a number of heat generating electrical components mounted on a printed circuit board, some of which components are arranged in pairs, each pair being separated by a space. The apparatus includes two heatsinks positioned such that the parallel, thermally conductive walls of the heatsinks are adjacent to the heat transfer surfaces of the components. Disposed within the space separating a given component pair is a pressing fastener which has a yoke with a V-shaped recess into which is positioned a wedge. The positioning of the wedge in the recess is adjusted by means of a screw, resulting in the tines of the yoke spreading as the wedge is drawn within the recess. As the tines spread, they engage the paired components pressing them in contact with the heatsink walls.
    Type: Grant
    Filed: March 3, 1992
    Date of Patent: February 2, 1993
    Assignee: Digital Equipment Corporation
    Inventors: Victor M. Samarov, Zeljko Arbanas