Patents Examined by Adolf D. Berhane
-
Patent number: 11742755Abstract: An embodiment voltage converter includes a first transistor and a second transistor coupled in series, and a first circuit configured to control the first and second transistors. The control terminal of the second transistor is coupled to a first output of the first circuit by a second circuit configured to delay the control signals supplied at the first output by a first duration. The control terminal of the first transistor is coupled to a second output of the first circuit by a circuit configured to delay the control signals supplied at the second output, for a second period of each operating cycle, by a duration equal to twice the first duration and, during a second period of each operating cycle, by a duration equal to the first duration.Type: GrantFiled: July 29, 2021Date of Patent: August 29, 2023Assignee: STMicroelectronics (Grenoble 2) SASInventor: David Chesneau
-
Patent number: 11735890Abstract: A surge protection device comprises at least one disconnecting device provided in a housing, a heat-conducting element, an actuating element for actuating an indicating device, and a locking element, the heat-conducting element being in contact with the housing. The actuating element is fastened to the heat-conducting element by means of the locking element, and the fastening is configured such that when a predetermined temperature at the locking element is exceeded, the locking element is detached from the heat-conducting element and/or from the actuating element and releases the actuating element.Type: GrantFiled: April 22, 2020Date of Patent: August 22, 2023Assignee: DEHN SEInventors: Uwe Strangfeld, Georg Wittmann, Richard Daum, Stefan Schön
-
Patent number: 11736027Abstract: A power conversion system for an aircraft on-board power system converts high voltage DC to low voltage DC and vice versa. The system includes switching means configured so that the system operates in a plurality of configurations, each forming an isolated DC/DC converter.Type: GrantFiled: March 12, 2020Date of Patent: August 22, 2023Assignee: SAFRANInventors: Jean-sylvio Ngoua Teu Magambo, Cyrille Gautier
-
Patent number: 11736031Abstract: A power converter includes an unfolder connected to a three-phase source and has an output connection with three output terminals. A three-input converter connected to the unfolder produces a quasi-sinusoidal output voltage across converter output terminals. Switches of the converter selectively connect each of the three output terminals across the converter output terminals. A pulse-width modulation controller controls a first duty ratio and a second duty ratio for the converter based on a phase angle of the source and a modulation index generated from an error signal related to a control variable. The duty ratios are time varying at a rate related to a fundamental frequency of the source. The modulation index relates to output voltage of the converter, peak voltage or current of the source and/or peak current at the output terminals.Type: GrantFiled: October 18, 2022Date of Patent: August 22, 2023Assignee: Utah State UniversityInventors: Chakridhar Reddy Teeneti, Regan A. Zane, Hongjie Wang, Dorai Babu Yelaverthi
-
Patent number: 11736028Abstract: A control circuit for a resonant converter, that is configured to: adjust a conduction time of one power switch and a conduction time of one corresponding synchronous rectifier switch in the resonant converter in a resonant period detection mode; control a resonance current to cross zero twice during the conduction time of the synchronous rectifier switch; and obtain a resonant period of the resonant converter.Type: GrantFiled: May 11, 2021Date of Patent: August 22, 2023Assignee: Silergy Semiconductor Technology (Hangzhou) LTDInventors: Jian Deng, Nan Luo, Yunlong Han, Zhaofeng Wang
-
Patent number: 11728747Abstract: According to at least one aspect of the disclosure, an inverter is provided comprising an input configured to receive input DC power from a DC source, an output configured to provide output AC power to a load, a plurality of DC rails coupled to the input and configured to receive the input DC power from the DC source, a plurality of switches coupled between the plurality of DC rails and configured to convert the input DC power into the output AC power, each switch of the plurality of switches having a parasitic capacitance, and at least one ZVS network coupled across at least two switches of the plurality of switches, the ZVS network including at least two inductors configured to resonate with the parasitic capacitance of at least one switch of the plurality of switches to provide soft switching of at least one switch of the plurality of switches.Type: GrantFiled: July 27, 2021Date of Patent: August 15, 2023Assignee: SCHNEIDER ELECTRIC IT CORPORATIONInventors: Indra Prakash, Damir Klikic, Chandrasekaran Jayaraman
-
Patent number: 11722062Abstract: A power supply device, an electronic apparatus, and a power supply method are provided. The power supply device comprises a first buck circuit used to convert, if a single battery cell in N cells connected in series has a voltage lower than a shutdown voltage of an electronic apparatus, a total voltage of the N cells into a power supply voltage of the electronic apparatus, such that the power supply voltage is higher than or equal to the shutdown voltage, N being an integer greater than or equal to 2; and a first power supply channel used to supply power to a system of the electronic apparatus according to the power supply voltage.Type: GrantFiled: September 22, 2021Date of Patent: August 8, 2023Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.Inventors: Jialiang Zhang, Hongbin Xie, Jun Zhang
-
Patent number: 11721970Abstract: An on-board electrical system for a vehicle includes an on-board power supply system (12) with a plurality of electrical energy consumers, and at least one on-board power supply system battery (14). At least one short circuit breaking device (28) disconnects a short circuit-relevant system area (22) from the on-board power supply system (12) when a short circuit occurs in the area of the short circuit-relevant system area (22).Type: GrantFiled: May 4, 2021Date of Patent: August 8, 2023Assignee: Eberspächer Controls Landau GmbH & Co. KGInventor: Steffen Wandres
-
Patent number: 11722069Abstract: A power conversion system includes: a self-excited power converter to perform power conversion between a first AC system and a DC system; a first transformer having a primary side connected to the first AC system and a secondary side connected to the self-excited power converter; and a first impedance circuit connected between a ground and a neutral point on the secondary side of the first transformer, or between the ground and an AC line connecting the secondary side of the first transformer and the self-excited power converter. The first impedance circuit includes one of a reactor and another transformer.Type: GrantFiled: August 8, 2019Date of Patent: August 8, 2023Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Kazuyori Tahata, Fuminori Nakamura, Shigeo Hayashi
-
Patent number: 11715945Abstract: A system including an arc flash sensor that detects an arc flash event and an arc flash mitigation device in communication with the sensor. The mitigation device includes a path of least resistance having a path input and a path output. The arc flash sensor is located downstream the output. The mitigation device includes an electro-mechanical switch between the input and the output and an actuator. The mitigation device also includes a bypass power switch device that includes a solid-state circuit interrupter and that conduct current between the input and the output in response to an open-circuit condition of the switch. A system controller is provided to generate a trigger to activate the actuator to generate the open-circuit condition of the switch, which causes the power switch device to interrupt a fault current associated with a fault event in response to detection of the arc flash event.Type: GrantFiled: November 8, 2022Date of Patent: August 1, 2023Assignee: EATON INTELLIGENT POWER LIMITEDInventors: Xin Zhou, Brian E. Carlson, Brooke E. Lang, Robert P. Griffin
-
Patent number: 11716032Abstract: Embodiments of the present application disclose a multi-level inverter clamping modulation method and apparatus, and an inverter. Switching elements of an inverter are controlled when an output voltage of the inverter crosses zero, and switching elements in each inverter bridge arm of an active clamp multi-level inverter include an internal tube, an external tube, and a clamping tube. The internal tube and the external tube are connected in series between a positive bus and a negative bus, the clamping tube is connected between a common terminal of the internal tube and the external tube and a bus, the internal tube is a low-frequency switching element, and the external tube and the clamping tube are high-frequency switching elements.Type: GrantFiled: April 26, 2022Date of Patent: August 1, 2023Assignee: Huawei Digital Power Technologies Co., Ltd.Inventors: Fei Xu, Fei Ye, Lei Shi
-
Patent number: 11715936Abstract: Circuit breakers with a housing with a line side and a load side and an electronically controlled lock-out lock member coupled to the housing configured to electronically controllably travel between a first position and a second position. In the second position, the lock member is in a lock-out position and prevents the handle from moving to an ON position associated with electrical current conduction and in the first position the lock member is translated to a position that allows the handle to move to the ON position.Type: GrantFiled: May 12, 2022Date of Patent: August 1, 2023Assignee: EATON INTELLIGENT POWER LIMITEDInventors: James I. Wise, Andrew R. Smith, Todd Shaak, Brianna Groden, David Raymond Rohn, Robert William Mueller
-
Patent number: 11711016Abstract: In described examples of a system having a proportional-integral control module, an error signal is produced that is indicative of a difference between a reference signal and an output signal. An integral control signal is produced by integrating the error signal using an integrator time constant value. During a steady state condition, a first integrator time constant value is used. When an undershoot in the output signal is detected, the integrator time constant value is increased to a second time constant value that is larger than the first integrator time constant value during the undershoot condition. The integrator time constant value is reduced to a third integrator time constant value that is less than the first integrator time constant value during a period following the undershoot condition.Type: GrantFiled: September 30, 2021Date of Patent: July 25, 2023Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Naman Bafna, Preetam Charan Anand Tadeparthy, Ammineni Balaji, Sreelakshmi Suresh
-
Patent number: 11711020Abstract: A transformer for a multiphase power converter includes a magnetic structure, a first coil configured to electrically couple to an input circuit or an output circuit of a subconverter of the multiphase power converter, and a second coil configured to electrically couple to an input circuit or an output circuit of another subconverter of the multiphase power converter. The magnetic structure includes a top member, a bottom member, and legs extending between the top member and the bottom member in substantially the same direction. The legs include two outer members and two inner members. The first coil is wound about one of the two inner members of the magnetic structure, and the second coil is wound about the other one of the two inner members of the magnetic structure. Other example transformers, and multiphase power converters including transformers are also disclosed.Type: GrantFiled: April 6, 2020Date of Patent: July 25, 2023Assignee: Astec International LimitedInventor: Todd Martin Schaible
-
Patent number: 11705816Abstract: The isolation transformer includes two kinds of winding, a high voltage side winding and a low voltage side winding, and the high voltage side winding and the low voltage side winding are formed in winding layers, wherein the high voltage side winding includes windings formed in multiple winding layers, a winding layer having a different number of turns exists in one or more kinds of the two kinds of winding among the windings formed in the multiple winding layers, winding layers wherein current flows in the same direction are stacked in such a way as not to be neighboring, and at least one of winding layers having the greatest number of turns is disposed as a layer other than an outermost layer.Type: GrantFiled: February 19, 2021Date of Patent: July 18, 2023Assignee: Mitsubishi Electric CornorationInventor: Hayato Tanabe
-
Patent number: 11705829Abstract: An apparatus may include a first switch leg connected between a first input terminal and a first output terminal, the first switch leg comprising serially connected switches. The apparatus may also include a second switch leg connected between a second input terminal and the first output terminal, the second switch leg comprising serially connected switches. The apparatus may further include a third switch leg connected between an input voltage midpoint and the first output terminal. A control circuit may control the first switch leg, the second switch leg and the third switch leg.Type: GrantFiled: September 8, 2022Date of Patent: July 18, 2023Assignee: Solaredge Technologies Ltd.Inventors: Daniel Zmood, Tzachi Glovinsky, Yakir Loewenstern
-
Patent number: 11705823Abstract: A topology for double-ended dual magnetic DC-DC SPC (“Voltage Doubler”) for all else being equal provides twice the output voltage as the conventional topology. The Voltage Doubler differs in that the secondary configuration is stacked in series as compared to the conventional topology in which the secondary configuration of the dual magnetics are in parallel. The output current is AC coupled rather than DC coupled to the load thereby doubling the output voltage. Because of the AC coupling, the Voltage Doubler is configured to automatically maintain balance of the secondary capacitors. During reset of the magnetics, the primary windings are shorted and both synchronous rectifier switches are closed. Due to transformer action, the output capacitors are connected to the output such that charge equalization forces the voltage on each capacitor to be equal.Type: GrantFiled: December 9, 2021Date of Patent: July 18, 2023Assignee: Raytheon CompanyInventors: Marty Perry, Robert J. Schaller
-
Patent number: 11699898Abstract: A system includes a solid-state circuit breaker coupling between a power supply and an electrical load. The system also includes a gateway interface device communicatively coupled to the solid-state circuit breaker and includes a plurality of communication interfaces. In an embodiment, the gateway interface device includes a controller configured to perform operations including determining a connection status of at least one communication interface of the plurality of communication interfaces and determining a number of devices connected to the at least one communication interface, receive a signal from at least one device of the number of devices. In the embodiment, the operations may also include in response to receiving the signal, instructing the solid-state circuit breaker to disconnect the electrical load from the power supply.Type: GrantFiled: August 12, 2022Date of Patent: July 11, 2023Assignee: Rockwell Automation Technologies, Inc.Inventors: David C. Mazur, Corey A. Peterson, Robert Dilgard, Todd R. Sauve, Peter J. Halpin, Calvin C. Steinweg
-
Patent number: 11699562Abstract: A system may include a power supply that generates a first voltage. The power supply may couple upstream from an electrical load. The electrical load may operate based at least in part on the first voltage. In some cases, a solid-state circuit breaker may be coupled between the power supply and the electrical load. Furthermore, a control system may be communicatively coupled to the power supply, the electrical load, and the solid-state circuit breaker. The control system may receive an operational status from the solid-state circuit breaker and may update a visualization rendered on a graphical user interface based at least in part on the operational status. The operational status may indicate an operation of the solid-state circuit breaker coupling the power supply to the electrical load.Type: GrantFiled: October 21, 2021Date of Patent: July 11, 2023Assignee: Rockwell Automation Technologies, Inc.Inventors: David C. Mazur, Corey A. Peterson, Robert Dilgard, Todd R. Sauve, Peter J. Halpin, Calvin C. Steinweg
-
Patent number: 11695346Abstract: An inverter device intended to convert a DC voltage into three phases of a polyphase AC voltage with a predetermined frequency, the inverter device comprising three single-phase inverters, each of the three single-phase inverters being able to deliver one of the three phases.Type: GrantFiled: May 13, 2021Date of Patent: July 4, 2023Assignee: THALESInventor: Francis Abdesselam
