Patents Examined by Jue Zhang
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Patent number: 12011733Abstract: The present invention relates to a method and device for increasing the quantity of electric charges in a chemical solution of an electrostatic sprayer. The method uses a liquid storage cavity of the electrostatic sprayer and an electrostatic module for generating static electricity. The liquid storage cavity is divided into a charging cavity and a chemical solution supply cavity. The charging cavity is isolated from the chemical solution supply cavity. An electrostatic output electrode of the electrostatic module applies static electricity to a chemical solution in the charging cavity in a static state so that the chemical solution carries a high content of electric charges.Type: GrantFiled: February 9, 2022Date of Patent: June 18, 2024Assignee: NINGBO KEPO ELECTRONICS CO., LTD.Inventors: Shaoxu Zhu, Yongdu Min
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Patent number: 12009738Abstract: An assembly having a multilevel power converter, which has at least one phase module, wherein the phase module has a plurality of modules, each with a first electrical module terminal and a second electrical module terminal. The plurality of modules includes modules of a first type, which are able to output a voltage of only one polarity or zero voltage at their first electrical module terminal and their second electrical module terminal. The plurality of modules includes modules of a second type, which are able to output a voltage of one polarity, a voltage of opposite polarity or zero voltage at their first electrical module terminal and their second electrical module terminal. Depending on the polarity of a voltage across the modules of the second type, a voltage limiting device limits the voltage.Type: GrantFiled: May 15, 2019Date of Patent: June 11, 2024Assignee: Siemens Energy Global GmbH & Co. KGInventors: Rodrigo Alonso Alvarez Valenzuela, Sebastian Semmler
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Patent number: 12009663Abstract: The present disclosure discloses an offshore wind farm low-frequency alternating-current uncontrolled rectification electric power transmission system, comprising an onshore converter station and an offshore alternating-current system. The offshore alternating-current system comprises wind turbine generators, alternating-current submarine cables, a confluence bus, and offshore booster stations; the onshore converter station comprises a wind field side alternating-current bus, an alternating-current system side alternating-current bus, an alternating-current filter, an energy dissipation device, a rectifier, and a converter; the rectifier is composed of a three-phase six-pulse uncontrolled rectifier bridge, and the converter may be an MMC or an LCC; the rated frequency of the offshore alternating-current system is selected to be close to 10 Hz.Type: GrantFiled: August 5, 2020Date of Patent: June 11, 2024Assignee: Zhejiang UniversityInventors: Zheng Xu, Yingjie Tang, Zheren Zhang
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Patent number: 12009712Abstract: A rotating electric machine includes an armature coil having a plurality of phase windings for respective phases. Each of the phase windings is constituted of a plurality of partial windings each having a pair of intermediate conductor portions and a pair of bridging portions connecting the pair of intermediate conductor portions. All the intermediate conductor portions of the partial windings are arranged in a predetermined sequence in a circumferential direction. At each of coil ends of the armature coil, the bridging portions of the partial windings of different phases intersect one another. Each of the partial windings has a mounting member provided integrally therewith for mounting it to a support member. For each circumferentially-adjacent pair of the partial windings whose bridging portions intersect one another, the mounting members provided respectively integrally with the pair of the partial windings are together fixed to the support member by a common fixing member.Type: GrantFiled: January 18, 2022Date of Patent: June 11, 2024Assignee: DENSO CORPORATIONInventors: Yuuki Mawatari, Akito Tamura
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Patent number: 12009728Abstract: A gear motor includes a gearing system, an electric motor, and an adapter. The adapter is situated between the electric motor and the gearing system, the adapter has an adapter shaft, the adapter shaft is at least partially inserted into an input shaft of the gearing system, the adapter shaft is connected to the input shaft in a torsionally fixed manner with the aid of a bellows, and a sealing ring is situated between the adapter shaft and the input shaft.Type: GrantFiled: June 3, 2020Date of Patent: June 11, 2024Assignee: SEW-EURODRIVE GMBH & CO. KGInventors: Markus Wöppermann, Jens Schillinger, Stefan Hannet
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Patent number: 12009724Abstract: A motor includes a rotor, a stator, and a support member. The rotor includes a rotor magnet, a magnet holding portion, and spoke portions. The stator includes a plurality of coils and a stator core. The support member includes a stator holding portion and a mount portion. The mount portion includes a plurality of slits extending radially inward from a radially outer end portion of the mount portion. The slits each have openings in an outer circumferential end and an upper surface of the mount portion. The openings of the slits positioned in the upper surface of the mount portion are positioned between the coils adjacent to each other in the circumferential direction when viewed in the axial direction.Type: GrantFiled: January 6, 2020Date of Patent: June 11, 2024Assignee: NIDEC CORPORATIONInventors: Yusuke Makino, Daisuke Ogasawara
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Patent number: 12009760Abstract: An electronic device may include an inverter. The inverter may convert direct current (DC) power to alternating current (AC) power. The inverter may use a clock signal at a given frequency to output corresponding alternating current signals at the given frequency. The inverter may receive a dithered clock signal that is frequency dithered using a modulating signal. The dithered clock signal may have at least three different frequency levels during a repeated cycle of the modulating signal. The at least three different frequency levels may include a fundamental frequency, a first frequency that is lower than the fundamental frequency, and a second frequency that is higher than the fundamental frequency. The dithered clock signal may be, during the repeated cycle of the modulating signal, at the fundamental frequency for fewer total periods than at the first frequency and for fewer total periods than at the second frequency.Type: GrantFiled: June 26, 2023Date of Patent: June 11, 2024Assignee: Apple Inc.Inventors: Sujeet Milind Patole, Cheung-Wei Lam, Mahmoud N Mahmoud
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Patent number: 12007803Abstract: A controllable temperature coefficient bias (CTCB) circuit is disclosed. The CTCB circuit can provide a bias to an amplifier. The CTCB circuit includes a variable with temperature (VWT) circuit having a reference circuit and a control circuit. The control circuit has a control output, a first current control element and a second current control element. Each current control element has a “controllable” resistance. One of the two current control elements may have a relatively high temperature coefficient and another a relatively low temperature coefficient. A controllable resistance of one of the current control elements increases when the controllable resistance of the other current control element decreases. However, the “total resistance” of the current control circuit remains constant with a constant temperature. The VWT circuit has an output with a temperature coefficient that is determined by the relative amount of current that flows through each current control element of the control circuit.Type: GrantFiled: July 26, 2023Date of Patent: June 11, 2024Assignee: pSemi CorporationInventors: Robert Mark Englekirk, Keith Bargroff, Christopher C. Murphy, Tero Tapio Ranta
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Patent number: 12003178Abstract: A method for a switched mode power supply (SMPS) includes providing an error voltage signal based on a difference between a sampled output voltage of the SMPS and a target voltage, and generating a clock signal characterized by an oscillating frequency; generating a switching control signal based on the error voltage signal and the clock signal using pulse-width modulation (PWM). The method further includes varying the oscillating frequency of the clock signal according to the error voltage signal in a current generating circuit, and applying the switching control signal to control the power switches of the SMPS.Type: GrantFiled: November 12, 2021Date of Patent: June 4, 2024Assignee: DIODES INCORPORATEDInventors: Wenliang Chen, Jiansong Chen
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Patent number: 12002701Abstract: An electrostatic chuck including a workpiece support surface, clamping layer, heating layer, thermal control system, and sealing band is disclosed. The sealing band surrounds an outer perimeter of the electrostatic chuck including at least a portion of the workpiece surface. The sealing band has a width greater than about 3 millimeters (mm) up to about 10 mm. Plasma processing apparatuses and systems incorporating the electrostatic chuck are also provided.Type: GrantFiled: December 15, 2021Date of Patent: June 4, 2024Assignees: Mattson Technology, Inc., Beijing E-Town Semiconductor Technology Co., Ltd.Inventor: Maolin Long
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Patent number: 12002520Abstract: According to one embodiment, a voltage generation circuit includes a first boost circuit, a voltage division circuit, a first detection circuit, a capacitor and a first switch. The first boost circuit outputs a first voltage. The voltage division circuit divides the first voltage. The first detection circuit is configured to detect a first monitor voltage supplied to the first input terminal, based on a reference voltage which is supplied to a second input terminal of the first detection circuit, and to control an operation of the first boost circuit. The capacitor is connected between an output terminal of the first boost circuit and the first input terminal of the first detection circuit. The first switch cuts off a connection between the capacitor and the first detection circuit, based on an output signal of the first detection circuit, until the first voltage is output from the first boost circuit.Type: GrantFiled: July 10, 2023Date of Patent: June 4, 2024Assignee: KIOXIA CORPORATIONInventors: Tatsuro Midorikawa, Masami Masuda
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Patent number: 11994889Abstract: Provided is an overcurrent protection circuit including an overcurrent detection unit configured to compare an output current flowing through a switch element and a predetermined overcurrent detection value to generate an overcurrent detection signal, an output activation detection unit configured to compare an output voltage and a predetermined threshold voltage to generate an output activation detection signal, a logic unit configured to combine the overcurrent detection signal and the output activation detection signal to generate a logic operation signal, and a diagnostic output unit configured to provide diagnostic output, the logic unit shifting the logic operation signal to a logic level of abnormal state when the overcurrent detection signal is shifted to a logic level of overcurrent detection state and holding the logic operation signal at that logic level, unless the output activation detection signal is shifted to a logic level of output activation state.Type: GrantFiled: March 22, 2022Date of Patent: May 28, 2024Assignee: ROMM Co., LTD.Inventors: Kenji Muraoka, Toru Takuma
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Patent number: 11996784Abstract: A voltage converter delivers an output voltage between a first and a second node. The voltage converter includes a capacitor series-coupled with a resistor between the first and second nodes. The resistor is coupled in parallel with a bidirectional switch receiving at its control terminal a positive bias voltage referenced to the second node.Type: GrantFiled: November 22, 2021Date of Patent: May 28, 2024Assignee: STMicroelectronics (Tours) SASInventors: Yannick Hague, Romain Launois
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Patent number: 11996780Abstract: The present disclosure provides a power conversion circuit including positive and negative input terminals, a clamping branch circuit, a first primary switch, a transformer, a rectifier circuit, a resonant inductor, a resonant capacitor, and positive and negative output terminals. The clamping branch circuit includes a clamping capacitor and a second primary switch serially connected between the first and second terminals thereof. The first terminal is coupled to the positive input terminal. The first primary switch is connected between the second terminal and the negative input terminal. The primary winding of the transformer is connected to the clamping branch circuit in parallel. The rectifier circuit includes first and second bridge arms connected in parallel. Connection terminals in the first and second bridge arms are coupled to two terminals of the secondary winding of the transformer correspondingly. The first and second bridge arms are coupled between the positive and negative output terminals.Type: GrantFiled: May 24, 2022Date of Patent: May 28, 2024Assignee: DELTA ELECTRONICS, INC.Inventors: Zhongwang Yang, Qi Xia
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Patent number: 11996788Abstract: Disclosed is a novel and innovative class of buck-boost bidirectional inverters achieve ultra high efficiency in applications requiring converting of one or more low and variable DC voltages of one or more power sources (which may include a battery, a low-voltage DC source, or a set of PV solar panels) to an AC voltage (e.g., connected to a grid) through a single-stage power conversion with step modulation.Type: GrantFiled: September 15, 2021Date of Patent: May 28, 2024Assignee: Redx Technology Australia Pty LtdInventors: Xue Jian Chen, Jin Chuan Huang
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Patent number: 11989045Abstract: Low drop-out (LDO) regulator circuits and methods that can operate at high frequencies without the adverse consequences of an oscillatory resonance effect from a capacitive load. In a first embodiment, a low pass filter (LPF) is coupled to the LDO and tuned to cancel the oscillatory resonance effect. In a second embodiment, the LPF is a second-order LPF and/or programmable. Since the tuning values of the programmable LPF may be programmatically selected, a much greater range of external capacitors values (with attendant ESR and ESL values), as well as a wider range of system parasitic capacitances, can be accommodated while maintaining system stability. Some variants of the second embodiment include an oscillation detector and filter bit control circuit that allows the tuning values of the programmable LPF to be dynamically determined and re-determined. An impedance-lowering device may be coupled to lower the impedance of the connection to the LPF.Type: GrantFiled: October 28, 2021Date of Patent: May 21, 2024Assignee: pSemi CorporationInventors: Satish Kumar Vangara, Amr Ahmed Kamel
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Patent number: 11990362Abstract: A composite sintered body including: a metal oxide as a main phase; silicon carbide as a sub-phase; and silicate of a metal element that is included in the metal oxide, in which the average aggregation diameter of the silicate in the field of view of 600 ?m2 at a magnification of 1000 times is 5 ?m or lower.Type: GrantFiled: May 21, 2020Date of Patent: May 21, 2024Assignee: SUMITOMO OSAKA CEMENT CO., LTD.Inventors: Nobuhiro Hidaka, Megumi Ootomo, Jun Arikawa
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Patent number: 11990830Abstract: A power conversion system according to the present disclosure includes a first circuit, a second circuit, and a third circuit. A first internal terminal, a second internal terminal, and a third internal terminal are electrically connected to the same connection unit. The third circuit provides an output voltage across a secondary winding of a transformer via a switching element and the transformer. The secondary winding is electrically connected to the third internal terminal. The output voltage has a waveform including a rising range in which the output voltage changes from a first potential to a second potential, a falling range in which the output voltage changes from the second potential to the first potential, and a flat range in which the output voltage is maintained at either the first potential or the second potential.Type: GrantFiled: March 5, 2020Date of Patent: May 21, 2024Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Fumito Kusama, Takaaki Norisada
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Patent number: 11984821Abstract: An inverter control device 200 includes a current control unit 210 that outputs a voltage commands (Vd*, Vq*), a modulation wave control unit 220 that generates a modulation wave based on the voltage commands (Vd*, Vq*), a pulse generation unit 230 that generates a PWM pulse for controlling an inverter 100 using a modulation wave and a carrier wave of a predetermined frequency, and a pulse shift unit 250 that corrects the phase of the PWM pulse such that the PWM pulse is output in a phase corresponding to a harmonic of a predetermined order of the modulation wave in the near-zero-cross region including the zero-cross point at which the modulation wave changes across 0.Type: GrantFiled: July 31, 2020Date of Patent: May 14, 2024Assignee: Hitachi Astemo, Ltd.Inventors: Toshiyuki Ajima, Takafumi Hara, Akihiro Ashida, Hirokazu Matsui
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Patent number: 11984250Abstract: A multi-winding inductor includes a magnetic core including three magnetic columns and two windings. Each winding includes a first, a second and a third portions. The first magnetic column is arranged between the first portion of the first winding and the first portion of the second winding; the second magnetic column is arranged on one side of the first portion of the first winding and the third portion of the second winding; and the third magnetic column is arranged between the third portion of the first winding and the third portion of the second winding. The first and the second portions of two windings respectively form pins on opposite sides of the magnetic core.Type: GrantFiled: March 2, 2022Date of Patent: May 14, 2024Assignee: Delta Electronics (Shanghai) CO., LTDInventors: Mingzhun Zhang, Jinping Zhou, Min Zhou, Shouyu Hong, Qingdong Chen