Patents Examined by Rafael O. De León Domenech
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Patent number: 11888390Abstract: The invention relates to a system for operating a first PEG element (PFC1) and a second PEC element (PFC2) in an interleaved mariner, said system comprising a first integrated circuit (IC1) having a first PFC controller, a second integrated circuit (IC2) having a second PFC controller, as well as a synchronization circuit (SYNC) connecting the first integrated circuit (IC1) and the second integrated circuit (IC2), whereas the synchronisation circuit (SYNC) is adapted to control the first integrated circuit (IC1) and the second integrated circuit (IC2) such that the first PFC element (PFC1) and the second PFC element (PFC2) are operated in anti-phase.Type: GrantFiled: October 14, 2019Date of Patent: January 30, 2024Assignee: Secop GmbHInventor: Rune Thomsen
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Patent number: 11881774Abstract: A controller includes: a pulse-width modulation (PWM) circuit; a control loop; and a reference voltage controller. The control loop has: a feedback input adapted to be coupled to an output voltage of a power stage; a control loop output coupled to a PWM control input; and an operational amplifier with a first feedback input, a first reference input, and an amplifier output, the first feedback input connected to the feedback input, and the amplifier output coupled to the PWM control input. The reference voltage controller has a reference voltage output coupled to the first reference input, the reference voltage controller configured to adjust a reference voltage provided to the reference voltage output responsive to a dynamic error estimate based on error in the operational amplifier.Type: GrantFiled: March 12, 2021Date of Patent: January 23, 2024Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Bikash Kumar Pradhan, Preetam Charan Anand Tadeparthy, Muthusubramanian Venkateswaran, Venkatesh Wadeyar, Siddaram Mathapathi
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Patent number: 11881762Abstract: An apparatus may include a regulated power converter, a control engine configured to control the regulated power converter based upon a regulation control parameter, and a parameter control system. The parameter control system may be configured to detect a transient event at an output of the regulated power converter. The parameter control system may be configured to modify, in response to the transient event, the regulation control parameter from a first value to a second value based upon a parameter modification profile. The parameter control system may be configured to modify, in response to modifying the regulation control parameter from the first value to the second value, the regulation control parameter according to a function of the parameter modification profile. The function may define a return of the regulation control parameter from the second value to the first value over a period of time.Type: GrantFiled: July 29, 2021Date of Patent: January 23, 2024Assignee: INFINEON TECHNOLOGIES AUSTRIA AGInventors: Venkat Sreenivas, Bikiran Goswami, Benjamim Tang, Todd Bellefeuille
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Patent number: 11881791Abstract: An object of the present invention is to provide a power conversion device capable of reducing an influence of electromagnetic noise propagating from a circuit body toward a drive circuit board. A power conversion device 100 of the present invention includes a circuit body 6 that converts a direct current into an alternating current, a drive circuit board 5 that drives the circuit body 6, a base member 4 provided between the circuit body 6 and the drive circuit board 5, and a case 1 that houses the circuit body 6 and the base member 4. The base member 4 includes a first flow channel forming portion 4A that forms a flow channel space 1C1 between the circuit body 6 and the base member 4, and a first extending portion 4B2 extending from the flow channel forming portion 4A and connected to an inner surface of the case 1.Type: GrantFiled: June 17, 2019Date of Patent: January 23, 2024Assignee: Hitachi Astemo, Ltd.Inventors: Taesung Kim, Hiroki Funato
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Patent number: 11876441Abstract: A switching control circuit controls switching of a switching device, which controls a resonance current of a resonant converter, with a frequency corresponding to an output voltage of the resonant converter. The switching control circuit includes a detection circuit configured to detect a difference between a first timing at which the switching device is turned on and a second timing at which a polarity of the resonance current reverses, and a signal output circuit configured to output a driving signal with a preset minimum frequency, responsive to the difference becoming so small as to satisfy a predetermined condition.Type: GrantFiled: January 26, 2022Date of Patent: January 16, 2024Assignee: FUJI ELECTRIC CO., LTD.Inventors: Ryuunosuke Araumi, Ryuji Yamada
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Patent number: 11870356Abstract: Technologies for safely lowering a DC link voltage potential include detecting shut down of a system that is powered by the DC link energy storage system and initiating an operating mode to dissipate energy as a form of loss without utilizing an additional resistor, that is, dissipating the DC link internally to the enclosed power module.Type: GrantFiled: September 30, 2021Date of Patent: January 9, 2024Assignee: THERMO KING LLCInventors: Xiaorui Wang, Ryan Wayne Schumacher
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Patent number: 11870262Abstract: Architectures, apparatuses, methods, systems, and techniques for controlling electrical power distribution network are disclosed. Embodiment distributed, hierarchical controls including layered locational energy service control variables may be utilized to determine and control the provision of energy services, including real power, reactive power (VAR), and capacity reserves, by DERs in a distribution network. In a first ex-ante iteration a simulation may be performed to calculate a set of subnetwork-specific control variables based on subnetwork locational energy service prices and a plurality of sets of DER-specific control variables based on DER locational energy service prices. A second ex-ante iteration calculates a set of actual subnetwork-specific control variables based on subnetwork locational energy service prices and a plurality of sets of actual DER specific control variables based on DER locational energy service prices.Type: GrantFiled: February 6, 2020Date of Patent: January 9, 2024Assignee: Hitachi Energy LtdInventors: Alexander Brissette, Joseph A. Carr, Zhenyuan Wang
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Patent number: 11863063Abstract: A power conversion system includes: a power converter connected to an alternate-current power supply; a direct-current capacitor connected to a direct-current side of the power converter; a first alternate-current switch connected between the power converter and the alternate-current power supply; an inrush current suppressor connected in parallel to the first alternate-current switch, between the power converter and the alternate-current power supply, and including a charging resistance or a charging reactor; a second alternate-current switch connected in parallel to the first alternate-current switch and in series to the inrush current suppressor, between the power converter and the alternate-current power supply; and a control device configured to control the power converter so that the first alternate-current switch is open, the second alternate-current switch is closed, and a voltage applied to the direct-current capacitor reaches a voltage that is equal to or exceeds a preset voltage.Type: GrantFiled: July 16, 2019Date of Patent: January 2, 2024Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATIONInventor: Issei Fukasawa
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Patent number: 11863060Abstract: Provided is a control circuit of a buck converter, comprising three transistors, seven resistors and a comparator. Also provided is a server. In this solution, when a phase voltage of a buck converter changes, a controller in the buck converter is controlled to output a signal for turning off a lower MOS transistor, so that after the signal is transmitted through the line, the lower MOS transistor can be controlled to be exactly turned off just when the current is reversed. Such an accurate reverse current detection function can reduce the voltage loss of the buck converter, thereby improving the efficiency of a system in standby or having a light load.Type: GrantFiled: December 30, 2021Date of Patent: January 2, 2024Assignee: INSPUR SUZHOU INTELLIGENT TECHNOLOGY CO., LTD.Inventor: Ziqiu Feng
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Patent number: 11855536Abstract: Disclosed embodiments may include an integrated circuit (IC) for controlling a switched-capacitor power converter for converting voltage between first and second nodes to voltage between third and fourth nodes for use with a first plurality of switches, a second plurality of switches, a plurality of capacitors, and a plurality of resonance modules. The IC may include a controller that is configured to control the first plurality of switches to be closed and the second plurality of switches to be open to electrically connect the first node to the third node through a first one of the plurality of capacitors in series with a first one of the plurality of resonance modules.Type: GrantFiled: September 23, 2021Date of Patent: December 26, 2023Assignee: pSemi CorporationInventor: David Giuliano
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Patent number: 11853093Abstract: In a power supply device, a voltage controller includes: a reference voltage circuit that generates a reference voltage based on an input voltage; a voltage control circuit that generates an output voltage of the voltage controller based on the input voltage by controlling an output current of the voltage controller so that the output voltage of the voltage controller corresponds to the reference voltage; and a first current detector circuit that detects the output current of the voltage controller, and generates a first current detection signal corresponding to the output current thereof. A current controller includes: a second current detector circuit that detects an output current of the current controller, and generates a second current detection signal corresponding to the output current thereof; and a current control circuit controls the output current of the current controller so that the second current detection signal corresponds to the first current detection signal.Type: GrantFiled: March 18, 2020Date of Patent: December 26, 2023Assignee: NISSHINBO MICRO DEVICES INC.Inventors: Hiroki Okuda, Takahiro Hino
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Patent number: 11841726Abstract: A power detect circuit is disclosed. A power detect circuit includes a voltage multiplier that receives an external supply voltage and generates a second supply voltage that is greater than the former. A voltage regulator is coupled to receive the second supply voltage and outputs a regulated supply voltage. A bandgap circuit is coupled to receive the second supply voltage when a first switch is closed, and the regulated supply voltage when a second switch is closed. The bandgap circuit generates a reference voltage for the voltage regulator, as well as one or more output voltages. A comparator circuit is coupled to receive the one or more output voltages from the bandgap circuit, and may compare these one or more output voltages to the regulated supply voltage.Type: GrantFiled: February 22, 2021Date of Patent: December 12, 2023Assignee: Apple Inc.Inventors: Seyedeh Sedigheh Hashemi, Vahid Majidzadeh Bafar, Ali Mesgarani, Mansour Keramat
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Patent number: 11843317Abstract: A system may include a boost converter configured to receive an input voltage and boost the input voltage to an output voltage and control circuitry configured to enforce a maximum current limit to limit a current drawn by the boost converter and in response to the output voltage decreasing below the input voltage, dynamically increase the current above the maximum current limit to cause the output voltage to be approximately equal to the input voltage.Type: GrantFiled: December 14, 2021Date of Patent: December 12, 2023Assignee: Cirrus Logic Inc.Inventors: Hasnain Akram, Graeme G. Mackay, Jason W. Lawrence
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Patent number: 11837969Abstract: A method operates a power converter having power converter arms, which are switchable between in each case an AC voltage side and a DC voltage side or connectable to phase lines of an AC voltage power supply system. Each power converter arm has a series circuit of switching modules each having a plurality of semiconductor switches and an energy store, in which at least one temperature value for the power converter is determined. A setpoint current limitation value is determined taking into consideration the temperature value, and a setpoint current value is determined taking into consideration the setpoint current limitation value. The temperature value, the arm setpoint current value, the arm actual current value and/or the arm setpoint current limitation value is time-integrated to form an arm integral value. When the arm integral value reaches or exceeds a predetermined arm integral threshold value, a protective measure is performed.Type: GrantFiled: January 10, 2022Date of Patent: December 5, 2023Assignee: Siemens Energy Global GmbH & Co. KGInventors: Rodrigo Alonso Alvarez Valenzuela, Joerg Dorn, Yeqi Wang, Kilian Dallmer-Zerbe
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Patent number: 11838010Abstract: The present invention provides a power supply circuit with an adjustable channel switch impedance and an electronic device. The power supply circuit includes N main channel MOS transistors, a control module, an execution module and a detection module, wherein the execution module includes a first MOS transistor; the detection module includes a detection resistor and a second MOS transistor; a gate-source voltage of the main channel MOS transistors and a gate-source voltage of the first MOS transistor are configured to be consistent, and a source-drain voltage of the main channel MOS transistors and a source-drain voltage of the second MOS transistor are consistent; the control module is connected to the detection resistor and configured to: detect voltage drop information on voltage drop at two ends of the detection resistor, wherein the voltage drop information can represent a current of a load.Type: GrantFiled: July 14, 2021Date of Patent: December 5, 2023Assignee: SHANGHAI YAOHUO MICROELECTRONICS Co., Ltd.Inventor: Lei Huang
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Patent number: 11837951Abstract: A self-oscillating converter includes a power transistor coupled to a primary winding for controlling current flow in the primary winding, and a turn-on circuit configured to turn on the power transistor for maintaining oscillation in the self-oscillating converter. The self-oscillating converter also includes a turn-off circuit configured to turn off the power transistor to maintain an on-time of the power transistor at a pre-set value for power factor correction, and modulate the on-time of the power transistor to regulate the output current in the load device.Type: GrantFiled: October 11, 2021Date of Patent: December 5, 2023Assignee: Nexgen Power Systems, Inc.Inventor: Charles Coles
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Patent number: 11837955Abstract: A power converter circuit included in a computer system may employ a compensation loop to adjust the durations of active times during which the power converter circuit sources energy to a load circuit via an inductor. The compensation loop includes an error signal whose value is based on a difference in the output voltage of the power converter circuit from a desired voltage level. During output transients, the error signal is adjusted using an injection current that tracks current flowing through the inductor.Type: GrantFiled: August 9, 2021Date of Patent: December 5, 2023Assignee: Apple Inc.Inventors: Nikola Jovanovic, Michael Couleur, Bhanupriya Suresh
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Patent number: 11831248Abstract: An inverter for an electric machine is provided. The electric machine includes a rotor and a stator. The inverter includes a DC/AC converter and a DC/DC converter. The DC/AC converter includes at least one chip of silicon carbide having at least one MOSFET. The DC/DC converter includes at least one chip of silicon having at least one IGBT. The DC/DC converter is connectible to a first one of the rotor or the stator of the electric machine and the DC/AC converter is connectible to a second one of the rotor or the stator of the electric machine.Type: GrantFiled: June 17, 2021Date of Patent: November 28, 2023Assignee: AUDI AGInventors: Andreas Apelsmeier, Stephan Brüske
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Patent number: 11824436Abstract: A detector circuit included in a computer system filters the voltage level of a power supply node to generate filtered signals. The detector circuit either compares the filtered signals or samples the filtered signal and compares the samples to reference levels to detect changes in the voltage level of the power supply node that exceed thresholds for magnitude and duration. A control circuit included in the computer system generates, using the glitch signal, control signals that can be used to change operating parameters of functional circuits included in the computer system.Type: GrantFiled: June 1, 2021Date of Patent: November 21, 2023Assignee: Apple Inc.Inventors: Xiao Pu, Bruce A. Doyle
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Patent number: 11809262Abstract: A power adjustment circuit, an adjustable power supply system and an adjustable power supply method are provided. The adjustable power supply system includes a power module, a device power supply, and a control circuit. The device power supply provides a supplied power to a device to be tested according to an operating voltage. The control circuit outputs an adjustment signal to the power module according to a power consumption status of the device to be tested. The power module generates the operating voltage according to the adjustment signal, and allows a first power dissipation generated by the device power supply to be less than a predetermined power.Type: GrantFiled: July 23, 2021Date of Patent: November 7, 2023Assignee: YOUNGTEK ELECTRONICS CORPORATIONInventors: Ching-Yung Tseng, Yong-Da Weng, Ping-Lung Wang