Patents by Inventor Joseph C. Paulakonis
Joseph C. Paulakonis 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: 7082040Abstract: An uninterrupted power supply (UPS) device with uninterrupted neutral from input to output utilizes the same converter for converting rectified AC power and battery power to positive and negative high voltage (HV) rails. A simple circuit is utilized for connecting the battery to the conversion components of the PFC circuit without adverse affect on the performance of the PFC circuit, and while holding the battery substantially connected to neutral. In a first embodiment, the circuit comprises a simple combination of four diodes and a pair of high pass capacitors arranged so that in both power line and battery supply modes the battery is balanced around neutral. In a second, preferred embodiment, one terminal of the battery is connected directly to neutral.Type: GrantFiled: March 25, 2004Date of Patent: July 25, 2006Assignee: Eaton Power Quality CorporationInventors: William J. Raddi, Joseph C. Paulakonis, Robert W. Johnson, Jr.
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Patent number: 6944035Abstract: An uninterrupted power supply (UPS) device with uninterrupted neutral from input to output utilizes the same converter for converting rectified AC power and battery power to positive and negative high voltage (HV) rails. A simple circuit is utilized for connecting the battery to the conversion components of the PFC circuit without adverse affect on the performance of the PFC circuit, and while holding the battery substantially connected to neutral. In a first embodiment, the circuit comprises a simple combination of four diodes and a pair of high pass capacitors arranged so that in both power line and battery supply modes the battery is balanced around neutral. In a second, preferred embodiment, one terminal of the battery is connected directly to neutral.Type: GrantFiled: March 3, 2003Date of Patent: September 13, 2005Assignee: Eaton Power Quality CorporationInventors: William J. Raddi, Joseph C. Paulakonis, Robert W. Johnson, Jr.
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Patent number: 6856524Abstract: An uninterrupted power supply (UPS) device with uninterrupted neutral from input to output utilizes the same converter for converting rectified AC power and battery power to positive and negative high voltage (HV) rails. A simple circuit is utilized for connecting the battery to the conversion components of the PFC circuit without adverse affect on the performance of the PFC circuit, and while holding the battery substantially connected to neutral. In a first embodiment, the circuit comprises a simple combination of four diodes and a pair of high pass capacitors arranged so that in both power line and battery supply modes the battery is balanced around neutral. In a second, preferred embodiment, one terminal of the battery is connected directly to neutral.Type: GrantFiled: March 3, 2003Date of Patent: February 15, 2005Assignee: Powerware CorporationInventors: William J. Raddi, Joseph C. Paulakonis, Robert W. Johnson, Jr.
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Publication number: 20040213022Abstract: An uninterrupted power supply (UPS) device with uninterrupted neutral from input to output utilizes the same converter for converting rectified AC power and battery power to positive and negative high voltage (HV) rails. A simple circuit is utilized for connecting the battery to the conversion components of the PFC circuit without adverse affect on the performance of the PFC circuit, and while holding the battery substantially connected to neutral. In a first embodiment, the circuit comprises a simple combination of four diodes and a pair of high pass capacitors arranged so that in both power line and battery supply modes the battery is balanced around neutral. In a second, preferred embodiment, one terminal of the battery is connected directly to neutral.Type: ApplicationFiled: March 25, 2004Publication date: October 28, 2004Inventors: William J. Raddi, Joseph C. Paulakonis, Robert W. Johnson
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Patent number: 6661678Abstract: An uninterrupted power supply (UPS) device with uninterrupted neutral from input to output utilizes the same converter for converting rectified AC power and battery power to positive and negative high voltage (HV) rails. A simple circuit is utilized for connecting the battery to the conversion components of the PFC circuit without adverse affect on the performance of the PFC circuit, and while holding the battery substantially connected to neutral. In a first embodiment, the circuit comprises a simple combination of four diodes and a pair of high pass capacitors arranged so that in both power line and battery supply modes the battery is balanced around neutral. In a second, preferred embodiment, one terminal of the battery is connected directly to neutral.Type: GrantFiled: May 20, 2002Date of Patent: December 9, 2003Assignee: Powerware CorporationInventors: William J. Raddi, Joseph C. Paulakonis, Robert W. Johnson, Jr.
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Publication number: 20030137197Abstract: An uninterrupted power supply (UPS) device with uninterrupted neutral from input to output utilizes the same converter for converting rectified AC power and battery power to positive and negative high voltage (HV) rails. A simple circuit is utilized for connecting the battery to the conversion components of the PFC circuit without adverse affect on the performance of the PFC circuit, and while holding the battery substantially connected to neutral. In a first embodiment, the circuit comprises a simple combination of four diodes and a pair of high pass capacitors arranged so that in both power line and battery supply modes the battery is balanced around neutral. In a second, preferred embodiment, one terminal of the battery is connected directly to neutral.Type: ApplicationFiled: March 3, 2003Publication date: July 24, 2003Inventors: William J. Raddi, Joseph C. Paulakonis, Robert W. Johnson
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Publication number: 20020130648Abstract: An uninterrupted power supply (UPS) device with uninterrupted neutral from input to output utilizes the same converter for converting rectified AC power and battery power to positive and negative high voltage (HV) rails. A simple circuit is utilized for connecting the battery to the conversion components of the PFC circuit without adverse affect on the performance of the PFC circuit, and while holding the battery substantially connected to neutral. In a first embodiment, the circuit comprises a simple combination of four diodes and a pair of high pass capacitors arranged so that in both power line and battery supply modes the battery is balanced around neutral. In a second, preferred embodiment, one terminal of the battery is connected directly to neutral.Type: ApplicationFiled: May 20, 2002Publication date: September 19, 2002Inventors: William J. Raddi, Joseph C. Paulakonis, Robert W. Johnson
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Patent number: 6400586Abstract: An uninterrupted power supply (UPS) device with uninterrupted neutral from input to output utilizes the same converter for converting rectified AC power and battery power to positive and negative high voltage (HV) rails. A simple circuit is utilized for connecting the battery to the conversion components of the PFC circuit without adverse affect on the performance of the PFC circuit, and while holding the battery substantially connected to neutral. In a first embodiment, the circuit comprises a simple combination of four diodes and a pair of high pass capacitors arranged so that in both power line and battery supply modes the battery is balanced around neutral. In a second, preferred embodiment, one terminal of the battery is connected directly to neutral.Type: GrantFiled: March 20, 2001Date of Patent: June 4, 2002Assignee: Powerware CorporationInventors: William J. Raddi, Joseph C. Paulakonis, Robert W. Johnson, Jr.
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Publication number: 20010012209Abstract: An uninterrupted power supply (UPS) device with uninterrupted neutral from input to output utilizes the same converter for converting rectified AC power and battery power to positive and negative high voltage (HV) rails. A simple circuit is utilized for connecting the battery to the conversion components of the PFC circuit without adverse affect on the performance of the PFC circuit, and while holding the battery substantially connected to neutral. In a first embodiment, the circuit comprises a simple combination of four diodes and a pair of high pass capacitors arranged so that in both power line and battery supply modes the battery is balanced around neutral. In a second, preferred embodiment, one terminal of the battery is connected directly to neutral.Type: ApplicationFiled: March 20, 2001Publication date: August 9, 2001Inventors: William J. Raddi, Joseph C. Paulakonis, Robert W. Johnson
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Patent number: 6262899Abstract: An uninterrupted power supply (UPS) device with uninterrupted neutral from input to output utilizes the same converter for converting rectified AC power and battery power to positive and negative high voltage (HV) rails. A simple circuit is utilized for connecting the battery to the conversion components of the PFC circuit without adverse affect on the performance of the PFC circuit, and while holding the battery substantially connected to neutral. In a first embodiment, the circuit comprises a simple combination of four diodes and a pair of high pass capacitors arranged so that in both power line and battery supply modes the battery is balanced around neutral. In a second, preferred embodiment, one terminal of the battery is connected directly to neutral.Type: GrantFiled: May 2, 2000Date of Patent: July 17, 2001Assignee: Powerware CorporationInventors: William J. Raddi, Joseph C. Paulakonis, Robert W. Johnson, Jr.
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Patent number: 6121756Abstract: An uninterruptible power supply (UPS) comprises a low voltage converter (02); a coupled inductor (60) comprising a first inductor (63) coupled to the battery, a second inductor (61) coupled to a first output terminal of a rectifier, and a third inductor (62) coupled to a second output terminal of the rectifier; a snubber circuit; and a high voltage inverter (01).Type: GrantFiled: October 25, 1999Date of Patent: September 19, 2000Assignee: Powerware CorporationInventors: Robert William Johnson, Jr., Steven R. Widener, Joseph C. Paulakonis, Jeff Gucyski
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Patent number: 6069412Abstract: An uninterrupted power supply (UPS) device with uninterrupted neutral from input to output utilizes the same converter for converting rectified AC power and battery power to positive and negative high voltage (HV) rails. A simple circuit is utilized for connecting the battery to the conversion components of the PFC circuit without adverse affect on the performance of the PFC circuit, and while holding the battery substantially connected to neutral. In a first embodiment, the circuit comprises a simple combination of four diodes and a pair of high pass capacitors arranged so that in both power line and battery supply modes the battery is balanced around neutral. In a second, preferred embodiment, one terminal of the battery is connected directly to neutral.Type: GrantFiled: March 29, 1993Date of Patent: May 30, 2000Assignee: Powerware CorporationInventors: William J. Raddi, Joseph C. Paulakonis, Robert W. Johnson, Jr.
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Patent number: 5399913Abstract: A gate-drive circuit (10) is an interface between a clock (12) and control circuit (14) and a circuit (16) comprising an isolated gate bipolar transistor (IGBT) devices. The clock (12) provides two complementary clock signals (CLK1, CLK2) to the gate-drive circuit (10); the control circuit provides a signal (ENABLE) for turning the gate-drive circuit on and off, and the gate-drive circuit outputs isolated supply voltages (+RAIL, -RAIL), a drive signal (GATE), and a common reference signal (EMITTER). The control signal is sent across an isolation boundary via a 2-MHz push-pull converter in the gate-drive circuit (10). A transformer (T1) in the gate-drive circuit provides the isolation boundary. The power required to switch the IGBT device (16) is sent through the same 2-MHz converter. The secondary of the 2-MHz push-pull transformer (T1) is referenced to the IGBT emitter.Type: GrantFiled: September 2, 1992Date of Patent: March 21, 1995Assignee: Exide Elecronics Corp.Inventors: Steven Widener, Eric Menzel, Joseph C. Paulakonis, George W. Oughton, Jr.
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Patent number: 5185536Abstract: An UPS apparatus with a back-up battery and successively coupled rectifier, inverter and output filter circuits, having an improved battery charging circuit. The charging circuit has a transformer with its primary winding being part of the output filter, and its secondary winding driving a second rectifier circuit which produces the charging current. The charging circuit contains an impedance preferably connected between the transformer secondary winding and the second rectifier circuit, for capturing only a high frequency portion of the signal from the inverter stage, thereby enabling the utilization of smaller charger circuit elements.Type: GrantFiled: September 27, 1991Date of Patent: February 9, 1993Assignee: Exide ElectronicsInventors: Robert W. Johnson, Jr., Joseph C. Paulakonis
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Patent number: 4980812Abstract: An uninterrupted power supply (UPS) system is provided with a power factor correction circuit. The UPS system includes a rectifier having input terminals for connection to an AC utility power source and output terminals. The power factor correction circuit is operatively connected to the input and output terminals of the rectifier to cause the UPS system to exhibit substantially unity power factor to the AC utility power source.Type: GrantFiled: November 9, 1989Date of Patent: December 25, 1990Assignee: Exide ElectronicsInventors: Robert W. Johnson, Jr., Joseph C. Paulakonis