Patents Examined by Gary A Nash
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Patent number: 12224660Abstract: The electronic apparatus including a power factor correction (PFC) circuit and a control circuit configured to control an operation of the PFC circuit is provided. The PFC circuit includes a first inductor part connected to one end of an AC voltage part and a first switch connected to a first inductor in series; a second inductor part connected to another end of the AC voltage part and a second switch connected to a second inductor in series; an output part connected to the first inductor part and the second inductor part; and a switching part, and the control circuit identically applies a switch on/off signal to the first switch and the second switch, and selectively applies a switch on/off signal to the third switch or the fourth switch based on a magnitude of an input voltage input through the AC voltage part.Type: GrantFiled: January 9, 2023Date of Patent: February 11, 2025Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Duhee Jang, Wonmyung Woo, Jeongil Kang, Sanghoon Lee
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Patent number: 12212222Abstract: A switching bridge for the DC-DC stage of a power converter, the switching bridge having one or more sets of upper and lower series-connected switches (S1, S2) connected across a DC bus and arranged to be switched to provide an output AC voltage, the switching bridge further comprising a voltage divider (C1) arranged to vary the output AC voltage level according to the switching state of the switches.Type: GrantFiled: September 16, 2022Date of Patent: January 28, 2025Assignee: Hamilton Sundstrand CorporationInventors: Rodrigo Fernandez-Mattos, Andrew Mclean, Jiewen Hu, Rolando Burgos, Bo Wen
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Patent number: 12206340Abstract: A method for arranging a generalized multilevel converter switching topology with switched capacitors for converting DC current into AC current, wherein the arrangement can be configured with regard to predetermined output voltage levels. With the same number of semiconductor switches, a higher number of voltage levels can be achieved in comparison to previous methods. Depending on the given problem, a maximum output voltage of the AC current may vary from significantly lower values than the input voltage of the DC current up to a multiple of these values. The generalized circuit topology may be adapted to a desired number of voltage levels by a repeatable arrangement of voltage level units that can be arranged in a row and to a multiphase load by a corresponding selection of a number of sub-modules. Furthermore, a modular multilevel converter configured with the circuit topology is described.Type: GrantFiled: February 13, 2023Date of Patent: January 21, 2025Assignee: Dr. Ing. h.c. F. Porsche AktiengesellschaftInventors: Stefan Götz, Nima Tashakor, Farzad Iraji
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Patent number: 12199496Abstract: A capacitor has a known capacitance value for filtering the ripple current of the DC voltage bus. A first modulation index estimator is configured to estimate a first modulation index of the first inverter. A second modulation index estimator configured to estimate a second modulation index of the second inverter. A current estimator is configured to estimate an interleaving phase shift angle associated with a respective one of a set of inverters based on the known capacitance value of the capacitor, the estimated first modulation index, the estimated second modulation index, the first control input and the second control input.Type: GrantFiled: March 1, 2023Date of Patent: January 14, 2025Assignee: DEERE & COMPANYInventors: Lav Thyagarajan, Morgan E. Schlichtmann, Christopher J. Tremel, David M. Loken
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Patent number: 12199484Abstract: A slot-less motor includes a rotor and a stator which is equipped with a coil assembly made of a combination of a plurality of coils. Each of the coils is designed as an air core coil which includes a pair of effective coil portions and a pair of coil ends. The coils assembly has the effective coil portions each of which is disposed in air cores of the respective adjacent coils. The coils include first coils each of which is not located between a center line and each of outer outlines of a respective adjacent one of the first coils.Type: GrantFiled: September 1, 2022Date of Patent: January 14, 2025Assignee: DENSO CORPORATIONInventor: Yuuji Yamashita
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Patent number: 12191760Abstract: A pulse width modulation (PWM) system includes a PWM circuit and a controller. The PWM circuit includes a counter, a period register, and a duty cycle register. The controller is coupled to the PWM circuit. The controller is configured to calculate a period value and a duty cycle value. The controller is also configured to load the duty cycle value into the duty cycle register responsive to a count value of the counter being equal to a value of the duty cycle register and the duty cycle value being less than the period value.Type: GrantFiled: October 17, 2022Date of Patent: January 7, 2025Assignee: TEXAS INSTRUMENTS INCORPORATEDInventor: Huihuang Chen
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Patent number: 12191779Abstract: An AC/DC converter stage for a converter system with an input series structure. The AC/DC converter stage includes two input terminals for inputting an AC input voltage and at least a first circuit branch with at least two switches that are electrically connected in series at a first connection point, where a first input terminal of the two input terminals is electrically connected to the first connection point of the first circuit branch. At least one first electrical storage provides a DC output voltage and is electrically connected in parallel to the first circuit branch. At least one controllable bidirectional switch is electrically connected between the two input terminals.Type: GrantFiled: September 16, 2022Date of Patent: January 7, 2025Assignee: Huawei Digital Power Technologies Co., Ltd.Inventor: Piniwan Thiwanka Bandara Wijekoon
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Patent number: 12191653Abstract: A temporary power delivery system includes a power source, a booth stringer, and a portable GFCI device. The GFCI device is receives current from the power source by a first terminal and delivers current to the booth stringer by a second terminal. An electronic processor of the GFCI device compares a combined magnitude of current flowing through first and second phase conductors of the GFCI device to a magnitude of current flowing through a neutral conductor of the GFCI. The electronic processor also compares a first voltage between the first phase conductor and neutral conductor to a second voltage between the second phase conductor and neutral conductor. A circuit breaker of the GFCI device is opened if a difference between the combined magnitude of phase conductor current and neutral conductor current exceeds a first threshold or a difference between the first voltage and second voltage exceeds a second threshold.Type: GrantFiled: November 27, 2023Date of Patent: January 7, 2025Assignee: Hubbell IncorporatedInventors: Roy Itzler, Nicole Gay
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Patent number: 12184120Abstract: A stator module is applicable to a motor. The motor comprises z slots, 2p poles, and m phases, where z, p, and m are integers. The stator module includes a stator core and a stator winding. The stator core has multiple stator slots, and the stator slots are distributed in a circumferential direction of the stator core. The stator winding includes a first-class conductor segment, a second-class conductor segment, and a third-class conductor segment. A pitch between a first in-slot portion and a second in-slot portion of the first-class conductor segment is (y?1) stator slots, a pitch between a first in-slot portion and a second in-slot portion of the second-class conductor segment is y stator slots, and a pitch between a first in-slot portion and a second in-slot portion of the third-class conductor segment is (y+1) stator slots, where y is an integer and y=z/2p.Type: GrantFiled: January 10, 2024Date of Patent: December 31, 2024Assignee: BYD COMPANY LIMITEDInventors: Shenglang Shu, Bin You
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Patent number: 12176817Abstract: A power converter includes a capacitor and a substrate on which a plurality of switching elements for power conversion are mounted. The power converter includes a cooler for cooling the plurality of switching elements and a housing that accommodates the capacitor, the substrate, and the cooler. The power converter includes a power connector exposed from the housing and an output connector exposed from the housing. The power converter includes a plurality of lines that include a plurality of power lines each electrically connected to the capacitor, given switching elements, and the power connector. The plurality of lines include a plurality of output lines each electrically connected to given switching elements and the output connector. At least one among the plurality of lines is a line that includes a conductive pattern formed on the substrate.Type: GrantFiled: December 26, 2023Date of Patent: December 24, 2024Assignee: FUJI ELECTRIC CO., LTD.Inventors: Yuji Suzuki, Motohito Hori, Akio Toba, Ikuya Sato, Yasuhito Tanaka, Masamichi Iwasaki, Masaaki Ajima, Nobuaki Ohguri
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Patent number: 12176140Abstract: A method carries out a switchover of an on-load tap-changer using a drive system. The drive system includes at least one motor which acts on a drive shaft, a control device and an encoder system which is directly or indirectly coupled to the drive shaft. The method includes receiving a signal for switching the on-load tap-changer from the control device; determining by the control device whether switching to a current tap was performed from an upward or downward direction, and whether switching will be performed to a next tap in the upward or downward direction; selecting, on the basis of the determination, one of a plurality of travel profiles for the drive system of the on-load tap-changer, on the basis of which the switchover is carried out; and carrying out and monitoring the switchover by the drive system according to the selected travel profile.Type: GrantFiled: April 23, 2020Date of Patent: December 24, 2024Assignee: MASCHINENFABRIK REINHAUSEN GMBHInventors: Kathrin Pruessing, Michael Schmeisser, Juergen Schimbera
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Patent number: 12170480Abstract: A controller for a multi-level converter compares a first voltage proportional to an input voltage or an output voltage with a second voltage proportional to a voltage of a flying capacitor and adjusting a slope of a ramp signal for generating a pulse width modulation (PWM) signal so that the second voltage follows the first voltage in controlling the multi-level converter.Type: GrantFiled: March 3, 2023Date of Patent: December 17, 2024Assignee: LX SEMICON CO., LTD.Inventors: Young Kook Ahn, Tae Kyu Nam, Won Suk Jang
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Patent number: 12166378Abstract: A stator for an electric machine is provided, the stator comprising at least three first plates at a first side of the stator, at least three teeth, each tooth being mechanically connected to a respective one of the first plates, and at least one second plate at a second side of the stator facing away from the first side, wherein the stator has, at least in some places, the shape of a ring having an outer side and an inner side, an electrical conductor is assigned to each tooth, and for each tooth, the respective electrical conductor is arranged at least at one side of the tooth which points towards the outer side of the stator and at one side of the tooth which points towards the inner side of the stator. Further, a rotor for an electric machine and an electric machine are provided.Type: GrantFiled: June 17, 2022Date of Patent: December 10, 2024Assignee: FEAAM GmbHInventor: Gurakuq Dajaku
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Patent number: 12160176Abstract: A power converter, includes: a first line to which a first voltage is applied; a second line to which a second voltage lower than the first voltage is applied; a third line to which a third voltage lower than the second voltage is applied; a first bridge circuit that is provided between the first line and the second line, the first bridge circuit including a plurality of first switching elements; a second bridge circuit that is provided between the second line and the third line, the second bridge circuit including a plurality of second switching elements; and a voltage output circuit configured to generate a predetermined direct current (DC) voltage based on operations of the first and second bridge circuits.Type: GrantFiled: July 28, 2022Date of Patent: December 3, 2024Assignee: FUJI ELECTRIC CO., LTD.Inventor: Motoyoshi Kubouchi
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Patent number: 12155283Abstract: The invention relates primarily to a rotating electrical machine for a motor vehicle including: —a rotor, and—a stator (11) including a winding (17) having a plurality of phases, each phase comprising a plurality of groups of coils (G1-G4), characterized in that said stator (11) is configured such that currents in the groups of coils (G1-G4) are able to flow selectively: —in one and the same direction so as to maximize a number of poles of the rotating electrical machine, or—in opposite directions so as to minimize a number of poles of the rotating electrical machine.Type: GrantFiled: July 26, 2019Date of Patent: November 26, 2024Assignee: Valeo Equipements Electriques MoteurInventors: Jean Claude Mipo, Sophie Personnaz, Zi-Qiang Zhu, Srinivas Mallampalli Satsai
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Patent number: 12149174Abstract: A boost or DC-DC converter includes a first output and a second output, a first inductor having a first side and a second side, the first side of the first inductor being connectable in electrical communication with a first output of a power supply or DC voltage source, and a second inductor having a first side and a second side, the first side of the second inductor being connectable in electrical communication with the first output of the power supply, the first inductor being inversely coupled to the second inductor. The converter includes a first switch in communication with the second side of the first inductor and a second output of the power supply, and a second switch in communication with the second side of the second inductor and the second output of the power supply.Type: GrantFiled: November 25, 2020Date of Patent: November 19, 2024Assignee: Wayne State UniversityInventors: Jianfei Chen, Caisheng Wang
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Patent number: 12149203Abstract: An energy harvesting module (1) includes: an energy harvesting element (2) including a first side (2a); and a frame (4). At the first side (2a), the frame (4) has an alternating arrangement structure (7) in which, along an outer edge of the energy harvesting element (2), there is alternating arrangement of: an outward second perimeter wall structure (7a) configured such that a second perimeter wall (6b) overlaps with a first perimeter wall (5b) from an outward radial direction and is snap-fitted therewith; and an inward second perimeter wall structure (7b) configured such that the second perimeter wall (6b) overlaps with the first perimeter wall (5b) from an inward radial direction and is snap-fitted therewith.Type: GrantFiled: June 22, 2021Date of Patent: November 19, 2024Assignee: ZEON CORPROATIONInventor: Tadakatsu Nakadaira
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Patent number: 12142910Abstract: A power control device includes: an output voltage controller configured to control an output voltage based on a feedback voltage corresponding to the output voltage; and an overvoltage protector configured to continue or stop the operation of the output voltage controller based on a first detection result of whether the output voltage has exceeded an output voltage threshold value and a second detection result of whether the feedback voltage has fallen to or below a feedback voltage threshold value.Type: GrantFiled: December 5, 2023Date of Patent: November 12, 2024Assignee: Rohm Co., Ltd.Inventor: Kenichi Okajima
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Patent number: 12143031Abstract: Described herein is a multi-level power convertor and a method for a multi-level power convertor. The multi-level power convertor includes a DC port; an AC port; a first power converting unit, a second power converting unit, a coupling inductor, and an inductive filtering unit. The first power converting unit is coupled to the DC port and includes a first AC terminal adapted to provide a first plurality of voltage levels. The second power converting unit is coupled to the DC port and includes a second AC terminal adapted to provide a second plurality of voltage levels, where the second plurality of voltage levels are phase-shifted by 90 degrees with respect to the first plurality of voltage levels. The coupling inductor includes first and second windings with a same number of turns. The inductive filtering unit is arranged between the AC port and ends of the first and second windings.Type: GrantFiled: November 11, 2019Date of Patent: November 12, 2024Assignee: ABB E-MOBILITY B.V.Inventors: Fu Yang, Yaming Shi
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Patent number: 12143035Abstract: A frequency converter, includes: a DC link, wherein the DC link has a first connection pole at which a positive link potential is present during operation of the frequency converter, and a second connection pole at which a negative link potential is present during operation of the frequency converter; an inverter, wherein the inverter has a first connection pole at which a positive inverter potential is present during operation of the frequency converter, and a second connection pole at which a negative inverter potential is present during operation of the frequency converter; a resistive shunt which is looped in between the first connection pole of the DC link and the first connection pole of the inverter; a differential amplifier which is designed to generate a test voltage from a potential difference across the resistive shunt; and an evaluation unit which is designed to detect a ground fault based on the test voltage.Type: GrantFiled: November 18, 2020Date of Patent: November 12, 2024Assignee: Lenze Swiss AGInventor: Andreas Burgermeister