Patents by Inventor Petre Minciunescu
Petre Minciunescu 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: 11940476Abstract: A three-phase power meter can monitor power on both 3-wire and 4-wire power lines. The power meter measures at least two voltages between phase conductors of the power line, and at least one voltage between a phase conductor and a neutral conductor of the power line when the neutral conductor is available. Using at least some of the measured voltages, the power meter can then operate in a first mode when coupled to a 3-wire power line to determine power on the power line based on the measured voltages, or operate in a second mode when coupled to a 4-wire power line to determine power on the power line based on the measured voltages.Type: GrantFiled: June 17, 2021Date of Patent: March 26, 2024Assignee: Analog Devices International Unlimited CompanyInventors: Petre Minciunescu, Seyed Amir Ali Danesh
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Patent number: 11675011Abstract: This disclosure relates to monitoring the condition of electrical/electronic switches over time by monitoring the impedance of the switch. The condition of switches can degrade as they age, which can reduce their performance and may ultimately lead to failure. In many applications, particularly high-voltage applications, the reliable operation of switches may be very important and failures can present a safety risk and cause costly unscheduled system downtime for repairs. It has been realised that as the condition of switches change, their impedance changes, so monitoring the impedance can give a good indication of the condition of the switch, enabling potential faults/failures to be identified early and acted upon pre-emptively.Type: GrantFiled: August 15, 2019Date of Patent: June 13, 2023Assignee: Analog Devices International Unlimited CompanyInventors: Seyed Amir Ali Danesh, Jonathan Ephraim David Hurwitz, William Michael James Holland, Petre Minciunescu
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Publication number: 20210382097Abstract: A three-phase power meter can monitor power on both 3-wire and 4-wire power lines. The power meter measures at least two voltages between phase conductors of the power line, and at least one voltage between a phase conductor and a neutral conductor of the power line when the neutral conductor is available. Using at least some of the measured voltages, the power meter can then operate in a first mode when coupled to a 3-wire power line to determine power on the power line based on the measured voltages, or operate in a second mode when coupled to a 4-wire power line to determine power on the power line based on the measured voltages.Type: ApplicationFiled: June 17, 2021Publication date: December 9, 2021Inventors: Petre Minciunescu, Seyed Amir Ali Danesh
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Patent number: 11131695Abstract: The present disclosure is concerned with measuring the amount of electrical energy consumed even when the electric meter has been tampered with. Electric meters may be fraudulently tampered with by connecting a bypass element, such as a conductive wire or cable, across the terminals of the meter in order to bypass the electric meter. This means that only part of the consumed electrical current passes through the electric meter for measurement, resulting in some of the consumed electrical energy not being measured and therefore not being billed for. However, in the present invention a technique has been developed to enable the electric meter to determine the amount of electrical current that bypasses the meter and therefore measure the amount electrical energy consumed even when the electric meter has been tampered with.Type: GrantFiled: August 15, 2019Date of Patent: September 28, 2021Assignee: Analog Devices, Inc.Inventor: Petre Minciunescu
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Patent number: 11061055Abstract: A three-phase power meter can monitor power on both 3-wire and 4-wire power lines. The power meter measures at least two voltages between phase conductors of the power line, and at least one voltage between a phase conductor and a neutral conductor of the power line when the neutral conductor is available. Using at least some of the measured voltages, the power meter can then operate in a first mode when coupled to a 3-wire power line to determine power on the power line based on the measured voltages, or operate in a second mode when coupled to a 4-wire power line to determine power on the power line based on the measured voltages.Type: GrantFiled: March 15, 2019Date of Patent: July 13, 2021Assignee: Analog Devices International Unlimited CompanyInventors: Petre Minciunescu, Seyed Amir Ali Danesh
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Publication number: 20210048461Abstract: The present disclosure is concerned with measuring the amount of electrical energy consumed even when the electric meter has been tampered with. Electric meters may be fraudulently tampered with by connecting a bypass element, such as a conductive wire or cable, across the terminals of the meter in order to bypass the electric meter. This means that only part of the consumed electrical current passes through the electric meter for measurement, resulting in some of the consumed electrical energy not being measured and therefore not being billed for. However, in the present invention a technique has been developed to enable the electric meter to determine the amount of electrical current that bypasses the meter and therefore measure the amount electrical energy consumed even when the electric meter has been tampered with.Type: ApplicationFiled: August 15, 2019Publication date: February 18, 2021Inventor: Petre Minciunescu
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Publication number: 20210048478Abstract: This disclosure relates to monitoring the condition of electrical/electronic switches over time by monitoring the impedance of the switch. The condition of switches can degrade as they age, which can reduce their performance and may ultimately lead to failure. In many applications, particularly high-voltage applications, the reliable operation of switches may be very important and failures can present a safety risk and cause costly unscheduled system downtime for repairs. It has been realised that as the condition of switches change, their impedance changes, so monitoring the impedance can give a good indication of the condition of the switch, enabling potential faults/failures to be identified early and acted upon pre-emptively.Type: ApplicationFiled: August 15, 2019Publication date: February 18, 2021Inventors: Seyed Amir Ali Danesh, Jonathan Ephraim David Hurwitz, William Michael James Holland, Petre Minciunescu
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Publication number: 20200292597Abstract: A three-phase power meter can monitor power on both 3-wire and 4-wire power lines. The power meter measures at least two voltages between phase conductors of the power line, and at least one voltage between a phase conductor and a neutral conductor of the power line when the neutral conductor is available. Using at least some of the measured voltages, the power meter can then operate in a first mode when coupled to a 3-wire power line to determine power on the power line based on the measured voltages, or operate in a second mode when coupled to a 4-wire power line to determine power on the power line based on the measured voltages.Type: ApplicationFiled: March 15, 2019Publication date: September 17, 2020Inventors: Petre Minciunescu, Seyed Amir Ali Danesh
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Patent number: 10416195Abstract: The present disclosure provides an improved Rogowski-type current sensor. In order to allow the sensing coil and the compensation wire to overlap, the sensor is produced using two boards. The current sensing coil is provided on one board, and the compensation wire is provided on another board. The coil and the wire are arranged such that they at least partially overlap, and ideally the compensation wire is formed entirely within the area defined by the coil, albeit in a different plane. This arrangement makes the current sensor far better at rejecting interference than prior art PCB arrangements. In addition, the coil may be formed on a two-sided board. The board has upper radial elements formed on an upper surface, and lower radial elements formed on lower surface. The radial elements are connected using vias formed in the board. The upper radial elements are arranged in a first plane, and the lower radial elements are formed in a second parallel plane.Type: GrantFiled: June 10, 2016Date of Patent: September 17, 2019Assignee: Analog Devices GlobalInventors: Jonathan Ephraim David Hurwitz, David S. Yaney, Petre Minciunescu, David P. Smith
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Publication number: 20170356934Abstract: The present disclosure provides an improved Rogowski-type current sensor. In order to allow the sensing coil and the compensation wire to overlap, the sensor is produced using two boards. The current sensing coil is provided on one board, and the compensation wire is provided on another board. The coil and the wire are arranged such that they at least partially overlap, and ideally the compensation wire is formed entirely within the area defined by the coil, albeit in a different plane. This arrangement makes the current sensor far better at rejecting interference than prior art PCB arrangements. In addition, the coil may be formed on a two-sided board. The board has upper radial elements formed on an upper surface, and lower radial elements formed on lower surface. The radial elements are connected using vias formed in the board. The upper radial elements are arranged in a first plane, and the lower radial elements are formed in a second parallel plane.Type: ApplicationFiled: June 10, 2016Publication date: December 14, 2017Inventors: Jonathan Ephraim David Hurwitz, David S. Yaney, Petre Minciunescu, David P. Smith
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Patent number: 8892933Abstract: The present invention may provide a system including a controller and a plurality of integrated circuits. The controller may control synchronization operations of the system, the controller may include a master timing counter and a controller data interface. Each integrated circuit may include a timing counter and an IC data interface. Further, each integrated circuit may synchronize its respective timing counter based on synchronization command received from the controller via the data interfaces. Hence, the system may provide synchronization between the controller and the integrated circuits without an extraneous designated pin(s) for a designated common time-based signal.Type: GrantFiled: April 23, 2012Date of Patent: November 18, 2014Assignee: Analog Devices, Inc.Inventors: Lawrence Getzin, Petre Minciunescu
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Publication number: 20130278312Abstract: The present invention may provide a system including a controller and a plurality of integrated circuits. The controller may control synchronization operations of the system, the controller may include a master timing counter and a controller data interface. Each integrated circuit may include a timing counter and an IC data interface. Further, each integrated circuit may synchronize its respective timing counter based on synchronization command received from the controller via the data interfaces. Hence, the system may provide synchronization between the controller and the integrated circuits without an extraneous designated pin(s) for a designated common time-based signal.Type: ApplicationFiled: April 23, 2012Publication date: October 24, 2013Applicant: ANALOG DEVICES, INC.Inventors: Lawrence GETZIN, Petre MINCIUNESCU
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Publication number: 20030210009Abstract: Drive systems and methods for energizing electronically commutated motors are provided. A drive system includes an inverter for providing pulse width modulated drive signals for energizing an electronically commutated motor in response to control signals and a controller for generating the control signals and for applying the control signals to the inverter such that winding pairs of the electronically commutated motor are energized in a selected sequence. The pulse width modulated drive signals include first and second pulses having first and second pulse widths, respectively, that are unequal. The average voltage applied to the energized winding pair is a function of the time difference between the first and second pulse widths.Type: ApplicationFiled: May 10, 2002Publication date: November 13, 2003Applicant: Analog Devices, Inc.Inventor: Petre Minciunescu