Patents by Inventor Gerald W. Droppo
Gerald W. Droppo 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: 6979916Abstract: A single- or multi-phase step wave power converter includes multiple transformers configured to receive DC voltage from one or more power sources. Each of the transformers includes a primary winding and a secondary winding. The transformers are each configured to supply a step for a step wave AC output. Bridge circuits are supplied for controlling input of DC voltage into the primary windings of the transformers. Steps for the step wave AC output are output from the secondary windings based upon the input provided to the primary windings. DC source management circuitry manages which DC power source(s) supplies DC voltage input to each of the bridge circuits. The management circuitry provides seamless power switching between the plurality of DC power sources based on each power source's performance characteristics. A pulse-width modulator can also be provided to the step wave power converter to modulate the input into a selected primary winding.Type: GrantFiled: June 19, 2003Date of Patent: December 27, 2005Assignee: International Power Systems, Inc.Inventors: Lawrence A. Schienbein, Gerald W. Droppo, Matthew K. Donnelly, Brent Earle Harris
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Patent number: 6882063Abstract: A DC to DC Converter includes an electrical circuit that allows batteries and other electrical energy storage devices to be charged from or to discharge to a variable voltage DC bus. This electrical circuit also enables seamless integration with other energy storage devices and/or DC power sources, such as fuel cells, to provide DC power for a Power Management System. A Power Management System preferably provides both full power source management and power conditioning. The Power Management System is able to manage power flow to and from multiple, isolated power sources and energy storage devices to deliver high quality alternating current (“AC”) power to a load.Type: GrantFiled: May 27, 2003Date of Patent: April 19, 2005Assignee: International Power Systems, Inc.Inventors: Gerald W. Droppo, Lawrence A. Schienbein, Brent Earle Harris, Donald J. Hammerstrom
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Patent number: 6738692Abstract: A power conversion and energy management system preferably includes a controller, one or more standard modules, and a custom (or semi-custom) backplane. The backplane preferably accommodates one or more modules and uses the modules to control power quality and/or flow to one or more input and/or output connections. The standard modules are preferably power modules such as an inverter module, converter module, or grid connect module. In addition to accommodating the modules, the backplane can include system components other than power electronics. The backplane can, for example, include external connectors, disconnects, fusing, and so forth, for a given application. The backplane can further include internal DC and AC buses to interconnect the modules. The backplane can also include a communications module, a user interface, a socket for control firmware, and slots for accommodating the standard modules.Type: GrantFiled: June 24, 2002Date of Patent: May 18, 2004Assignee: Sustainable Energy TechnologiesInventors: Lawrence A. Schienbein, Donald J. Hammerstrom, Gerald W. Droppo, Brent Earle Harris
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Publication number: 20040004403Abstract: A single- or multi-phase step wave power converter includes multiple transformers configured to receive DC voltage from one or more power sources. Each of the transformers includes a primary winding and a secondary winding. The transformers are each configured to supply a step for a step wave AC output. Bridge circuits are supplied for controlling input of DC voltage into the primary windings of the transformers. Steps for the step wave AC output are output from the secondary windings based upon the input provided to the primary windings. DC source management circuitry manages which DC power source(s) supplies DC voltage input to each of the bridge circuits. The management circuitry provides seamless power switching between the plurality of DC power sources based on each power source's performance characteristics. A pulse-width modulator can also be provided to the step wave power converter to modulate the input into a selected primary winding.Type: ApplicationFiled: June 19, 2003Publication date: January 8, 2004Applicant: International Power Systems, Inc.Inventors: Lawrence A. Schienbein, Gerald W. Droppo, Matthew K. Donnelly, Brent Earle Harris
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Publication number: 20030201674Abstract: A DC to DC Converter includes an electrical circuit that allows batteries and other electrical energy storage devices to be charged from or to discharge to a variable voltage DC bus. This electrical circuit also enables seamless integration with other energy storage devices and/or DC power sources, such as fuel cells, to provide DC power for a Power Management System. A Power Management System preferably provides both full power source management and power conditioning. The Power Management System is able to manage power flow to and from multiple, isolated power sources and energy storage devices to deliver high quality alternating current (“AC”) power to a load.Type: ApplicationFiled: May 27, 2003Publication date: October 30, 2003Applicant: International Power System, Inc.Inventors: Gerald W. Droppo, Lawrence A. Schienbein, Brent Earle Harris, Donald J. Hammerstrom
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Patent number: 6628011Abstract: A DC to DC Converter includes an electrical circuit that allows batteries and other electrical energy storage devices to be charged from or to discharge to a variable voltage DC bus. This electrical circuit also enables seamless integration with other energy storage devices and/or DC power sources, such as fuel cells, to provide DC power for a Power Management System. A Power Management System preferably provides both full power source management and power conditioning. The Power Management System is able to manage power flow to and from multiple, isolated power sources and energy storage devices to deliver high quality alternating current (“AC”) power to a load.Type: GrantFiled: July 27, 2001Date of Patent: September 30, 2003Assignee: International Power System, Inc.Inventors: Gerald W. Droppo, Lawrence A. Schienbein, Brent Earle Harris, Donald J. Hammerstrom
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Patent number: 6608404Abstract: A single- or multi-phase step wave power converter includes multiple transformers configured to receive DC voltage from one or more power sources. Each of the transformers includes a primary winding and a secondary winding. The transformers are each configured to supply a step for a step wave AC output. Bridge circuits are supplied for controlling input of DC voltage into the primary windings of the transformers. Steps for the step wave AC output are output from the secondary windings based upon the input provided to the primary windings. DC source management circuitry manages which DC power source(s) supplies DC voltage input to each of the bridge circuits. The management circuitry provides seamless power switching between the plurality of DC power sources based on each power source's performance characteristics. A pulse-width modulator can also be provided to the step wave power converter to modulate the input into a selected primary winding.Type: GrantFiled: December 19, 2000Date of Patent: August 19, 2003Assignee: International Power Systems, Inc.Inventors: Lawrence A. Schienbein, Gerald W. Droppo, Matthew K. Donnelly, Brent Earle Harris
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Publication number: 20030036806Abstract: A power conversion and energy management system preferably includes a controller, one or more standard modules, and a custom (or semi-custom) backplane. The backplane preferably accommodates one or more modules and uses the modules to control power quality and/or flow to one or more input and/or output connections. The standard modules are preferably power modules such as an inverter module, converter module, or grid connect module. In addition to accommodating the modules, the backplane can include system components other than power electronics. The backplane can, for example, include external connectors, disconnects, fusing, and so forth, for a given application. The backplane can further include internal DC and AC buses to interconnect the modules. The backplane can also include a communications module, a user interface, a socket for control firmware, and slots for accommodating the standard modules.Type: ApplicationFiled: June 24, 2002Publication date: February 20, 2003Inventors: Lawrence A. Schienbein, Donald J. Hammerstrom, Gerald W. Droppo, Brent Earle Harris
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Publication number: 20020047309Abstract: A DC to DC Converter includes an electrical circuit that allows batteries and other electrical energy storage devices to be charged from or to discharge to a variable voltage DC bus. This electrical circuit also enables seamless integration with other energy storage devices and/or DC power sources, such as fuel cells, to provide DC power for a Power Management System. A Power Management System preferably provides both full power source management and power conditioning. The Power Management System is able to manage power flow to and from multiple, isolated power sources and energy storage devices to deliver high quality alternating current (“AC”) power to a load.Type: ApplicationFiled: July 27, 2001Publication date: April 25, 2002Inventors: Gerald W. Droppo, Lawrence A. Schienbein, Brent Earle Harris, Donald J. Hammerstrom
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Publication number: 20010004170Abstract: A single- or multi-phase step wave power converter includes multiple transformers configured to receive DC voltage from one or more power sources. Each of the transformers includes a primary winding and a secondary winding. The transformers are each configured to supply a step for a step wave AC output. Bridge circuits are supplied for controlling input of DC voltage into the primary windings of the transformers. Steps for the step wave AC output are output from the secondary windings based upon the input provided to the primary windings. DC source management circuitry manages which DC power source(s) supplies DC voltage input to each of the bridge circuits. The management circuitry provides seamless power switching between the plurality of DC power sources based on each power source's performance characteristics. A pulse-width modulator can also be provided to the step wave power converter to modulate the input into a selected primary winding.Type: ApplicationFiled: December 19, 2000Publication date: June 21, 2001Inventors: Lawrence A. Schienbein, Gerald W. Droppo, Matthew K. Donnelly, Brent Earle Harris
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Patent number: 6198178Abstract: A single- or multi-phase step wave power converter includes multiple transformers configured to receive DC voltage from one or more power sources. Each of the transformers includes a primary winding and a secondary winding. The transformers are each configured to supply a step for a step wave AC output. Bridge circuits are supplied for controlling input of DC voltage into the primary windings of the transformers. Steps for the step wave AC output are output from the secondary windings based upon the input provided to the primary windings. DC source management circuitry manages which DC power source(s) supplies DC voltage input to each of the bridge circuits. The management circuitry provides seamless power switching between the plurality of DC power sources based on each power source's performance characteristics. A pulse-width modulator can also be provided to the step wave power converter to modulate the input into a selected primary winding.Type: GrantFiled: December 21, 1999Date of Patent: March 6, 2001Assignee: International Power Systems, Inc.Inventors: Lawrence A. Schienbein, Gerald W. Droppo, Matthew K. Donnelly, Brent Earle Harris