Patents by Inventor William R. Kranz
William R. Kranz 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: 11394290Abstract: A methods and systems for generating rectified signals are disclosed. For example, a system performing the methods includes a current source rectifier which has a plurality of switches configured to receive an input current from an AC voltage source and to receive a plurality of control signals. The switches are configured to produce a rectified output current based on the input current and the control signals. The system also includes a rectifier controller configured to receive a current sense signal indicative of the rectified output current and to generate the control signals based at least in part on the current sense signal, where the control signals cause the current source rectifier to attenuate at least one of a plurality of harmonic frequencies in the rectified output current.Type: GrantFiled: April 8, 2021Date of Patent: July 19, 2022Assignee: DRS Naval Power Systems, Inc.Inventors: Robert M. Cuzner, Ashish R. Bendre, William R. Kranz
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Publication number: 20210257900Abstract: A methods and systems for generating rectified signals are disclosed. For example, a system performing the methods includes a current source rectifier which has a plurality of switches configured to receive an input current from an AC voltage source and to receive a plurality of control signals. The switches are configured to produce a rectified output current based on the input current and the control signals. The system also includes a rectifier controller configured to receive a current sense signal indicative of the rectified output current and to generate the control signals based at least in part on the current sense signal, where the control signals cause the current source rectifier to attenuate at least one of a plurality of harmonic frequencies in the rectified output current.Type: ApplicationFiled: April 8, 2021Publication date: August 19, 2021Inventors: Robert M. Cuzner, Ashish R. Bendre, William R. Kranz
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Patent number: 11011973Abstract: A methods and systems for generating rectified signals are disclosed. For example, a system performing the methods includes a current source rectifier which has a plurality of switches configured to receive an input current from an AC voltage source and to receive a plurality of control signals. The switches are configured to produce a rectified output current based on the input current and the control signals. The system also includes a rectifier controller configured to receive a current sense signal indicative of the rectified output current and to generate the control signals based at least in part on the current sense signal, where the control signals cause the current source rectifier to attenuate at least one of a plurality of harmonic frequencies in the rectified output current.Type: GrantFiled: March 23, 2020Date of Patent: May 18, 2021Assignee: DRS Naval Power Systems, Inc.Inventors: Robert M. Cuzner, Ashish R. Bendre, William R. Kranz
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Publication number: 20200227999Abstract: A methods and systems for generating rectified signals are disclosed. For example, a system performing the methods includes a current source rectifier which has a plurality of switches configured to receive an input current from an AC voltage source and to receive a plurality of control signals. The switches are configured to produce a rectified output current based on the input current and the control signals. The system also includes a rectifier controller configured to receive a current sense signal indicative of the rectified output current and to generate the control signals based at least in part on the current sense signal, where the control signals cause the current source rectifier to attenuate at least one of a plurality of harmonic frequencies in the rectified output current.Type: ApplicationFiled: March 23, 2020Publication date: July 16, 2020Applicant: DRS Power & Control Technologies, Inc.Inventors: Robert M. Cuzner, Ashish R. Bendre, William R. Kranz
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Patent number: 10630162Abstract: A system includes a current source rectifier which has a plurality of switches configured to receive an input current from an AC voltage source and to receive a plurality of control signals. The switches are configured to produce a rectified output current based on the input current and the control signals. The system also includes a rectifier controller configured to receive a current sense signal indicative of the rectified output current and to generate the control signals based at least in part on the current sense signal, where the control signals cause the current source rectifier to attenuate at least one of a plurality of harmonic frequencies in the rectified output current.Type: GrantFiled: July 6, 2018Date of Patent: April 21, 2020Assignee: DRS Power & Control Technologies, Inc.Inventors: Robert M. Cuzner, Ashish R. Bendre, William R. Kranz
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Publication number: 20180316257Abstract: A system includes a current source rectifier which has a plurality of switches configured to receive an input current from an AC voltage source and to receive a plurality of control signals. The switches are configured to produce a rectified output current based on the input current and the control signals. The system also includes a rectifier controller configured to receive a current sense signal indicative of the rectified output current and to generate the control signals based at least in part on the current sense signal, where the control signals cause the current source rectifier to attenuate at least one of a plurality of harmonic frequencies in the rectified output current.Type: ApplicationFiled: July 6, 2018Publication date: November 1, 2018Applicant: DRS Power & Control Technologies, Inc.Inventors: Robert M. Cuzner, Ashish R. Bendre, William R. Kranz
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Patent number: 10056820Abstract: A system includes a current source rectifier which has a plurality of switches configured to receive an input current from an AC voltage source and to receive a plurality of control signals. The switches are configured to produce a rectified output current based on the input current and the control signals. The system also includes a rectifier controller configured to receive a current sense signal indicative of the rectified output current and to generate the control signals based at least in part on the current sense signal, where the control signals cause the current source rectifier to attenuate at least one of a plurality of harmonic frequencies in the rectified output current.Type: GrantFiled: November 5, 2015Date of Patent: August 21, 2018Assignee: DRS POWER & CONTROL TECHNOLOGIES, INC.Inventors: Robert M. Cuzner, Ashish R. Bendre, William R. Kranz
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Publication number: 20160126824Abstract: A system includes a current source rectifier which has a plurality of switches configured to receive an input current from an AC voltage source and to receive a plurality of control signals. The switches are configured to produce a rectified output current based on the input current and the control signals. The system also includes a rectifier controller configured to receive a current sense signal indicative of the rectified output current and to generate the control signals based at least in part on the current sense signal, where the control signals cause the current source rectifier to attenuate at least one of a plurality of harmonic frequencies in the rectified output current.Type: ApplicationFiled: November 5, 2015Publication date: May 5, 2016Applicant: DRS Power & Control Technologies, Inc.Inventors: Robert M. Cuzner, Ashish R. Bendre, William R. Kranz
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Patent number: 9240732Abstract: A system includes a current source rectifier which has a plurality of switches configured to receive an input current from an AC voltage source and to receive a plurality of control signals. The switches are configured to produce a rectified output current based on the input current and the control signals. The system also includes a rectifier controller configured to receive a current sense signal indicative of the rectified output current and to generate the control signals based at least in part on the current sense signal, where the control signals cause the current source rectifier to attenuate at least one of a plurality of harmonic frequencies in the rectified output current.Type: GrantFiled: May 22, 2013Date of Patent: January 19, 2016Assignee: DRS Power & Control Technologies, Inc.Inventors: Robert M. Cuzner, Ashish R. Bendre, William R. Kranz
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Publication number: 20130314953Abstract: A system includes a current source rectifier which has a plurality of switches configured to receive an input current from an AC voltage source and to receive a plurality of control signals. The switches are configured to produce a rectified output current based on the input current and the control signals. The system also includes a rectifier controller configured to receive a current sense signal indicative of the rectified output current and to generate the control signals based at least in part on the current sense signal, where the control signals cause the current source rectifier to attenuate at least one of a plurality of harmonic frequencies in the rectified output current.Type: ApplicationFiled: May 22, 2013Publication date: November 28, 2013Applicant: Engineered Electric Company d/b/a DRS FremontInventors: Robert M. Cuzner, Ashish R. Bendre, William R. Kranz
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Publication number: 20040070278Abstract: A dual feed power supply system provides the high reliability of a dual utility feed, with minimization of interruptions in the power supplied to critical loads during switching, and compensation for voltage sags occurring on the primary power feed. First and second AC input buses are connected through a transfer switching apparatus to each of the phase lines of a distribution bus. The transfer switching apparatus has a first input terminal connected to one of the phase lines of the first input bus and a second input terminal connected to one of the phase lines of the second input bus, and an output terminal connected to one of the phase lines of the distribution bus. Input switches allow switching from one or the other of the AC input buses to the distribution bus, with a fast transfer switch used to interrupt the supply of power from the input buses to the distribution bus during switching of the input switches.Type: ApplicationFiled: October 15, 2002Publication date: April 15, 2004Inventors: Deepakraj M. Divan, Robert Schneider, William R. Kranz
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Patent number: 6118676Abstract: A low cost, small size, light weight, and highly effective system and method for providing dynamic power line voltage sag correction is provided. A dynamic voltage sag corrector includes a static bypass switch and a regulator/storage module connected together in parallel between input terminals and output terminals. Under normal operating conditions, the static bypass switch is closed, and a normal line voltage level is provided directly from the input terminals to the output terminals via the static bypass switch. When a voltage sag condition is indicated, the static bypass switch is opened, and the regulator/storage module is controlled to provide a near normal output voltage signal to the output terminals. The regulator/storage module includes a power conversion circuit which is controlled to provide the desired output voltage signal by adding a voltage level on storage capacitors to the available input line voltage signal.Type: GrantFiled: November 4, 1999Date of Patent: September 12, 2000Assignee: Soft Switching Technologies Corp.Inventors: Deepakraj M. Divan, Glen Luckjiff, Robert Schneider, William E. Brumsickle, William R. Kranz