Patents by Inventor Ravindranath Naiknaware
Ravindranath Naiknaware 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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Publication number: 20150194927Abstract: A method for testing a photovoltaic (PV) module having an integrated power converter includes: obtaining a reference output signature of a PV module design in response to a flash pattern; applying the flash pattern to a PV module under test; acquiring an observed output signature of the PV module under test in response to the flash pattern; and comparing the observed output signature of the PV module under test to the reference output signature. Second reference output and observed output signatures may be obtained in response to a second flash pattern. The output signatures may be combined using various techniques. One or more parameters of the integrated power converter may be preset to one or more predetermined states prior to applying a flash pattern.Type: ApplicationFiled: March 20, 2015Publication date: July 9, 2015Applicant: SunPower CorporationInventor: Ravindranath Naiknaware
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Publication number: 20150163074Abstract: In some embodiments, a system includes a power system coupled to a power bus, and a power line communication (PLC) gateway coupled in series with the power bus. In other embodiments, a system includes first and second power circuits coupled in series with a power bus, and first and second power-line communication circuits coupled in series with the power bus. In additional embodiments, a system includes a power converter coupled to a power bus and having one or more switching frequencies, and a power-line communication circuit coupled to the power bus and having one or more communication frequencies, where at least one of the switching frequencies is substantially greater than at least one of the communication frequencies.Type: ApplicationFiled: October 14, 2014Publication date: June 11, 2015Inventors: Henry F. Pruett, Vincenzo DiTommaso, Ravindranath Naiknaware, Jorell A. Olson
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Patent number: 9035633Abstract: A method of operating a switching power converter may include determining an average value of a measured parameter for substantially each switching cycle, and adjusting a control parameter during substantially each switching cycle in response to a corresponding one of the average values. In one embodiment, the control parameter comprises a switch duty cycle, and the measured parameter comprises an output current. Determining the average value of the measured parameter may include obtaining a first sample of the measured parameter during a switching cycle, and calculating the average value of the measured parameter during the switching cycle in response to the first sample.Type: GrantFiled: August 25, 2010Date of Patent: May 19, 2015Assignee: SunPower CorporationInventors: Keith Slavin, Ravindranath Naiknaware
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Patent number: 8988096Abstract: A method for testing a photovoltaic (PV) module having an integrated power converter includes: obtaining a reference output signature of a PV module design in response to a flash pattern; applying the flash pattern to a PV module under test; acquiring an observed output signature of the PV module under test in response to the flash pattern; and comparing the observed output signature of the PV module under test to the reference output signature. Second reference output and observed output signatures may be obtained in response to a second flash pattern. The output signatures may be combined using various techniques. One or more parameters of the integrated power converter may be preset to one or more predetermined states prior to applying a flash pattern.Type: GrantFiled: November 18, 2011Date of Patent: March 24, 2015Assignee: SunPower CorporationInventor: Ravindranath Naiknaware
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Patent number: 8860242Abstract: In some embodiments, a system includes a power system coupled to a power bus, and a power line communication (PLC) gateway coupled in series with the power bus. In other embodiments, a system includes first and second power circuits coupled in series with a power bus, and first and second power-line communication circuits coupled in series with the power bus. In additional embodiments, a system includes a power converter coupled to a power bus and having one or more switching frequencies, and a power-line communication circuit coupled to the power bus and having one or more communication frequencies, where at least one of the switching frequencies is substantially greater than at least one of the communication frequencies.Type: GrantFiled: October 19, 2010Date of Patent: October 14, 2014Assignee: SolarBridge Technologies, Inc.Inventors: Henry F. Pruett, Vincenzo DiTommaso, Ravindranath Naiknaware, Jorell A. Olson
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Patent number: 8824178Abstract: A power converter may include a first power path having no energy storage and a second power path having substantial energy storage. The first and second power paths have first and second input waveforms that are complementary with respect to a source waveform. The first power path, which may be more efficient than the second path, may transfer as much power as possible from the input to the output. The energy storage enables the second power path to make up the difference between the power available from the source and the power drawn by the first power path, and to make up the difference between the power demanded by a load and the power supplied by the first path.Type: GrantFiled: December 30, 2010Date of Patent: September 2, 2014Assignee: SolarBridge Technologies, Inc.Inventors: Gary B. Baker, Robert Batten, Keith Slavin, Triet Tu Le, Vincenzo DiTommaso, Ravindranath Naiknaware
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Patent number: 8796884Abstract: In one embodiment, a power conversion system includes a controller to provide power control to a converter, and a distortion mitigation circuit. In another embodiment, a system includes a converter to transfer power between a power source and a load having fluctuating power demand, and a controller to provide power control, where the controller may selectively disable the power control. In another embodiment, a power conversion system includes a controller to generate a drive signal to provide power control to a power path in response to a sense signal from the power path, where the sense signal is taken from other than the input of the power path, or the drive signal is applied to the power path at other than a first power stage.Type: GrantFiled: February 10, 2009Date of Patent: August 5, 2014Assignee: SolarBridge Technologies, Inc.Inventors: Ravindranath Naiknaware, Vincenzo DiTommaso, Triet Tu Le, Robert D. Batten, Terri Shreeve Fiez
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Patent number: 8737093Abstract: A power converter is disclosed including a switching converter having a switching node, a first quasi-resonant multiplier stage having a resonant input coupled to the switching node, and a second quasi-resonant multiplier stage having a resonant input coupled to the switching node. In another embodiment, a power converter includes a switching converter having a switching node, a first quasi-resonant multiplier stage having a boost input coupled to the switching node, and a first clamp coupled to the first multiplier stage.Type: GrantFiled: August 2, 2011Date of Patent: May 27, 2014Assignee: SolarBridge Technologies, Inc.Inventors: Gary B. Baker, Ravindranath Naiknaware, Triet Tu Le
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Publication number: 20120089409Abstract: Embodiments herein describe an apparatus, method, and system to track goods and services. The tracked information is provided dynamically and in real-time to an end-user of the tracking system. The tracked information can be centrally managed by a server, or can be managed in a distributed network (e.g., cloud), or by a smart device (e.g., smart-phone, tablet PC). The method comprises: storing information in a database, the information corresponding to the good or service being tracked for an end-user; determining an update to the information stored in the database; determining whether a time attribute associated with the good or service exceeds a predetermined threshold; and generating an electronic message for the end-user of the good or service in response to determining the update or when the predetermined threshold exceeds the time attribute.Type: ApplicationFiled: September 30, 2011Publication date: April 12, 2012Inventors: Uttam Pawar, Ravindranath Naiknaware
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Publication number: 20110055445Abstract: A signal processing system may include a multiply-accumulate (MAC) unit to generate output data by performing multiply-accumulate operations on first and second input data in response to a stream of MAC instruction words, where the MAC unit is pipelined to enable it to perform a multiply-accumulate operation in response to each MAC instruction word. The system may also include an instruction generator to generate the stream of MAC instruction words by performing loop expansion on a stream of intermediate instruction words, where one intermediate instruction word may comprise a group of fields to set up the MAC unit to execute in response to the one intermediate instruction word.Type: ApplicationFiled: March 15, 2010Publication date: March 3, 2011Applicant: AZURAY TECHNOLOGIES, INC.Inventors: Edward Gee, Keith Slavin, Robert Batten, Vincenzo DiTommaso, Ravindranath Naiknaware, Triet Tu Le, Adam Heiberg, Dennis Morel
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Publication number: 20100157632Abstract: In one embodiment, a power conversion system may include a controller to cause a power stage to control power to or from an energy storage device. In another embodiment, a power conversion system may include a push-pull stage and an energy storage device following the push-pull stage. In another embodiment, an integrated circuit may include power control circuitry to provide power control to a power converter, and a power switch coupled to the power control circuitry to operate the power converter. In another embodiment, a power conversion system may include two or more power converters having power control.Type: ApplicationFiled: February 10, 2009Publication date: June 24, 2010Applicant: AZURAY TECHNOLOGIES, INC.Inventors: Robert D. Batten, Triet Tu Le, Vincenzo DiTommaso, Ravindranath Naiknaware, Terri Shreeve Fiez
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Publication number: 20100157638Abstract: In one embodiment, a power conversion system includes a controller to provide power control to a converter, and a distortion mitigation circuit. In another embodiment, a system includes a converter to transfer power between a power source and a load having fluctuating power demand, and a controller to provide power control, where the controller may selectively disable the power control. In another embodiment, a power conversion system includes a controller to generate a drive signal to provide power control to a power path in response to a sense signal from the power path, where the sense signal is taken from other than the input of the power path, or the drive signal is applied to the power path at other than a first power stage.Type: ApplicationFiled: February 10, 2009Publication date: June 24, 2010Applicant: AZURAY TECHNOLOGIES, INC.Inventors: Ravindranath Naiknaware, Vincenzo DiTommaso, Triet Tu Le, Robert D. Batten, Terri Shreeve Fiez
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Publication number: 20090160259Abstract: A distributed energy conversion system may include one or more DC power sources and two or more inverters to convert DC power from the power sources to AC power. The AC power from the two or more inverters may be combined to provide a single AC output. A module may include one or more photovoltaic cells and two or more inverters. An integrated circuit may include power electronics to convert DC input power to AC output power and processing circuitry to control the power electronics. The AC output power may be synchronized with an AC power distribution system.Type: ApplicationFiled: December 20, 2008Publication date: June 25, 2009Applicant: WI-CHI, INC.Inventors: Ravindranath Naiknaware, Triet Tu Le, Terri Shreeve Fiez, Kartikeya Mayaram