Using Choke And Switch Across Source Patents (Class 323/222)
  • Patent number: 11218116
    Abstract: A power management integrated circuit (PMIC) can improve the ramp up speed of a boost converter with the inclusion of a controllable switch that may modify the connection of an output capacitor to reduce the ramp time as the output voltage is ramping to a desired boost setpoint. The switch may be controlled using jump start logic to switch a first plate or terminal of the output capacitor from a ground connection to a voltage supply connection. Once a threshold voltage is reached, the first plate of the capacitor may be switched from the supply voltage to ground. The PMIC may further include a quick start assembly that can drive the boost converter at a high duty-cycle.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: January 4, 2022
    Assignee: Skyworks Solutions, Inc.
    Inventors: Wendy Ng, James Jason LoCascio
  • Patent number: 11205969
    Abstract: An inverter device includes a converter circuit and an output circuit. The converter circuit generates a DC intermediate voltage based on a DC input voltage from a power source. The converter circuit includes: a first inductor and a first switch that are coupled in series across the power source; a second switch and a second inductor that are coupled in series across the power source; and a diode and a capacitor that are coupled in series between a common node of the first inductor and the first switch and a common node of the second switch and the second inductor. The output circuit generates an AC output voltage based on the DC intermediate voltage across the capacitor.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: December 21, 2021
    Assignee: I SHOU UNIVERSITY
    Inventor: Chien-Hsuan Chang
  • Patent number: 11205958
    Abstract: A power conversion system including a power conversion unit, a power circuit and a precharge circuit is provided. The power conversion circuit includes an input port, an output port, switching power conversion units and at least one storage device. The storage device is connected between the input and output ports in series. The power circuit is electrically connected to the power conversion circuit for receiving the input voltage and outputting a supply voltage to the power conversion circuit, and the power circuit includes a magnetic element. The precharge circuit precharges the storage device. The precharge circuit includes a winding and a rectifier filter circuit connected to each other. The winding is coupled to the magnetic element for receiving a conversion voltage. The rectifier filter circuit is electrically connected to the storage device so as to receive the conversion voltage and output a charge voltage to the corresponding storage device.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: December 21, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Da Jin, Yahong Xiong, Qinghua Su
  • Patent number: 11205963
    Abstract: A power conversion system is provided. The power conversion system includes a power conversion circuit, a bootstrap circuit and at least N driving circuits, where N is an integer larger than 1. The power conversion circuit includes an input port, an output port, N switching power conversion units and N nodes. The switching power conversion unit includes a first switch and a second switch. The bootstrap circuit includes N bootstrap capacitors and N bootstrap switches. The N bootstrap switches are serially connected in sequence. Two ends of the bootstrap capacitor are connected to the corresponding node and the second terminal of the corresponding bootstrap switch respectively. The first terminal of the (N)th bootstrap switch receives a supply voltage. The driving circuit is connected to the corresponding bootstrap capacitor and outputs driving signals for controlling the switches according to the positive electrode voltage of the bootstrap capacitor.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: December 21, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Da Jin, Yahong Xiong, Qinghua Su
  • Patent number: 11205957
    Abstract: A boost converter includes a first inductor, a first switch element, a second switch element, a tuning circuit, and an output stage circuit. A first parasitic capacitor is built in the first switch element. The first switch element selectively couples the first inductor to a ground voltage according to a first control voltage. A second parasitic capacitor is built in the second switch element. The second switch element selectively couples the first inductor to the output stage circuit according to a second control voltage. The tuning circuit includes a second inductor, a third inductor, and a discharge path. The first parasitic capacitor resonates with the second inductor and is coupled through the discharge path to the ground voltage, or the second parasitic capacitor resonates with the third inductor and is coupled through the discharge path to the ground voltage.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: December 21, 2021
    Assignee: ACER INCORPORATED
    Inventor: Tzu-Tseng Chan
  • Patent number: 11190109
    Abstract: The invention provides a control circuit for controlling the operation of a power converter having a switch connected to an output of the power converter, said control circuit comprising a first amplifier for sensing an output voltage of the power converter and a second amplifier configured to derive a frequency compensated error signal output, to provide a frequency control compensation loop to an input of the power converter and the output of the second amplifier is connected to the switch of the power converter.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: November 30, 2021
    Assignee: ADVANCED ENERGY INDUSTRIES, INC.
    Inventors: Richard Morrison, Jonathan James Wilkinson, Phelim Bradley
  • Patent number: 11176804
    Abstract: Aspects of the present disclosure provide addressable detection and alarm systems and methods for controlling a combined circuit by a control panel. In an example, a combined circuit may include one or more addressable initiating devices and one or more non-addressable notification appliances communicatively coupled with paired wires in parallel. The control panel may receive, on the paired wires, an indication of an anomaly from an addressable initiating device and transmit, on the paired wires, the alarm signal to the one or more addressable initiating devices and the one or more non-addressable notification appliances, wherein a first state of the alarm signal activates the one or more non-addressable notification appliances and deactivates the one or more addressable initiating devices, and wherein a second state of the alarm signal deactivates the one or more non-addressable notification appliances and activates the one or more addressable initiating devices.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: November 16, 2021
    Assignee: Johnson Controls Fire Protection LP
    Inventor: Joseph Piccolo, III
  • Patent number: 11165360
    Abstract: A method includes providing a transformer with primary and current injection windings, a primary switch connected to the primary winding, a parasitic capacitance reflected across the primary switch, a secondary rectifier means, and a current injection circuit including a current injection switch connected to the current injection winding, and a unidirectional current injection switch connected to the current injection winding. The method includes switching on the current injection switch to start a current injection flowing from a controlled voltage source, through the unidirectional current injection switch and further through the current injection winding. The current injection reflects into the primary winding, thereby discharging the parasitic capacitance reflected across the primary switch. The method includes turning on the primary switch with a delay time after the current injection switch turns on and turning off the current injection switch after the current injection reaches zero amplitude.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: November 2, 2021
    Assignee: Rompower Technology Holdings, LLC
    Inventor: Ionel Jitaru
  • Patent number: 11152859
    Abstract: In some examples, a system includes a battery, a first voltage regulator with an input, and a second voltage regulator with an input. The input of the second voltage regulator is shifted in phase relative to the input of the first voltage regulator.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: October 19, 2021
    Assignee: Intel Corporation
    Inventor: Govindaraj G
  • Patent number: 11152808
    Abstract: The disclosed embodiments provide a system that manages use of a battery in a portable electronic device. During operation, the system operates a charging circuit for converting an input voltage from a power source into a set of output voltages for charging the battery and powering a low-voltage subsystem and a high-voltage subsystem in the portable electronic device. Upon detecting the input voltage from the power source and a low-voltage state in the battery during operation of the charging circuit, the system uses a first inductor group in the charging circuit to down-convert the input voltage to a target voltage of the battery that is lower than a voltage requirement of the high-voltage subsystem. The system also uses a second inductor group in the charging circuit to up-convert the target voltage to power the high-voltage subsystem.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: October 19, 2021
    Assignee: Apple Inc.
    Inventors: Jamie Langlinais, Mark A. Yoshimoto, Lin Chen
  • Patent number: 11139670
    Abstract: A charger circuit with temperature compensation function includes: a power converter, an input voltage sense circuit, an output adjustment circuit and a charging control circuit. The power converter converts an input voltage supplied from a photovoltaic power module to an output voltage. The input voltage sense circuit generates a signal related to the input voltage according to the input voltage. The output adjustment circuit generates an output adjustment signal according to the signal related to the input voltage. The charging control circuit generates a control signal according to the output adjustment signal, thereby adjusting a level of an output current supplied from the power converter. When a level of the input voltage is smaller than a predetermined voltage threshold, the power converter decreases the output current.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: October 5, 2021
    Assignee: RICHTEK TECHNOLOGY CORPORATION
    Inventors: Kuo-Chi Liu, Chang-Yu Ho
  • Patent number: 11128218
    Abstract: An adaptive frequency adjusting system is provided. An error amplifier outputs an error amplified signal according to an output voltage of a power converter and a reference voltage. When a comparator determines that a voltage of a slope signal reaches a voltage of the error amplified signal within a maximum on-time of an upper bridge switch, the comparator outputs a reset signal. When the comparator determines that the voltage of the slope signal fails to reach the voltage of the error amplified signal and the maximum on-time ends, the comparator outputs the reset signal and instructs a clock generator to output a clock signal having a lower frequency. A driver circuit turns off the upper bridge switch and turns on a lower bridge switch according to the reset signal, and drives the upper bridge switch based on the clock signal having the lower frequency.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: September 21, 2021
    Assignee: ANPEC ELECTRONICS CORPORATION
    Inventors: Chun-Kai Hsu, Chih-Heng Su
  • Patent number: 11095263
    Abstract: A signal amplifier for use in a power converter includes a variable reference generator coupled to generate a reference signal in response to a dimming control signal. A variable gain circuit is coupled to receive the reference signal, the gain signal, and a feedback signal representative of an output of the power converter. The variable gain circuit is coupled to output a first adjusted signal in response to the reference signal and the gain signal. The variable gain circuit is coupled to output a second adjusted signal in response to the feedback signal and the gain signal. An auxiliary amplifier is coupled to output the gain signal in response to the first adjusted signal and a set signal.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: August 17, 2021
    Assignee: POWER INTEGRATIONS, INC.
    Inventors: Lance M. Wong, Qing McIntosh, Zhao-Jun Wang
  • Patent number: 11095207
    Abstract: A power factor correction circuit with burst setting includes a conversion circuit, a control unit, and a burst setting circuit. The burst setting circuit respectively sets at least one burst period when an input power source is at a rising edge of a positive half cycle, a falling edge of the positive half cycle, the rising edge of a negative half cycle, and the falling edge of the negative half cycle, and provides a burst setting signal corresponding to the at least one burst period to the control unit so that the control unit limits the conversion circuit to perform a burst operation during the at least one burst period.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: August 17, 2021
    Assignee: ASIAN POWER DEVICES INC.
    Inventors: Yeu-Torng Yau, Tsung-Liang Hung
  • Patent number: 11095118
    Abstract: A method of controlling discharge of a holdup capacitor in a power system having a voltage source, a holdup capacitor and a load. The method including operably connecting the voltage source to the load, monitoring a first voltage of the voltage source, and if the first voltage of the voltage source drops below a selected threshold, directing energy from the holdup capacitor to the load via a first path, and directing energy from the holdup capacitor to the load via a second path if a selected condition is satisfied.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: August 17, 2021
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Pervaze Humayun, Midhun M. Hegden
  • Patent number: 11080984
    Abstract: Aspects of the present disclosure provide non-addressable detection and alarm systems and methods for controlling a combined circuit by a control panel. In an example, a combined circuit may include paired wires, one or more initiating devices, and one or more notification appliances communicatively coupled with the paired wires in parallel. The control panel may monitor the one or more initiating devices in a standby mode while maintaining the one or more notification appliances in an off state. When the control panel detects an anomaly from one or more initiating devices, the control panel may switch the combined circuit to an alarm mode. In the alarm mode, the control panel may activate the one or more notification appliances and maintain the one or more initiating devices in an off state.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: August 3, 2021
    Assignee: JOHNSON CONTROLS FIRE PROTECTION LP
    Inventor: Joseph Piccolo, III
  • Patent number: 11081889
    Abstract: Systems and methods for shut-down of a photovoltaic system. In one embodiment, a method implemented in a computer system includes: communicating, via a central controller, with a plurality of local management units (LMUs), each of the LMUs coupled to control a respective solar module; receiving, via the central controller, a shut-down signal from a user device (e.g., a hand-held device, a computer, or a wireless switch unit); and in response to receiving the shut-down signal, shutting down operation of the respective solar module for each of the LMUs.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: August 3, 2021
    Assignee: Tigo Energy, Inc.
    Inventors: Maxym Makhota, Daniel Eizips, Dan Kikinis
  • Patent number: 11081958
    Abstract: A converter system includes a first switch, a first sensing unit configured to generate a first sensed signal proportional to a current through the first switch, a second sensing unit (118) configured to generate a second sensed signal based on a difference between a reference voltage and a feedback voltage, a DC compensation unit configured to generate a slope peak DC signal relative to a slope peak of a slope compensation signal, and a signal combination unit configured to generate a control signal based on the first and second sensed signals, the slope compensation signal and the slope peak DC signal to switch off the first switch.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: August 3, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Jian Liang, Weicheng Zhang, Linghan Xie
  • Patent number: 11071184
    Abstract: The disclosure describes techniques for driving a plurality of light emitting diodes (LEDs) arranged in a parallel connection by using PWM (Pulse Width Modulation) dimming. The techniques of this disclosure describe the generation and application of a fixed phase shift map to a driver matrix based on pixel position. Each pixel corresponds to an LED light source. In the fixed phase shift map, each pixel will have a pre-defined phase shift calculated to induce a determined variation in turn-on time for geometrically neighbouring pixels to spread out current demand over time during PWM dimming.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: July 20, 2021
    Assignee: Infineon Technologies AG
    Inventors: Rosario Chiodo, Adolfo De Cicco, Pietro Vallese
  • Patent number: 11063513
    Abstract: This invention is an AC/DC one stage, one switch, and one inductor converter, to be used as an electronic power factor controller. This converter Buck-Boost topology is capable of converting a power line AC to a positive DC with a voltage conversion ratio close to unity. When used for a universal line voltage 85-250 VAC, it may have an output voltage close to 240 VDC instead of the traditional Boost converters having the d output voltage range of +380-400 VDC. The circuit's lower output voltage and its simplicity and low cost, make it a viable candidate to replace the Boost converters in any application, where lowering the output DC voltage along with lowering manufacturing costs are desirable.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: July 13, 2021
    Inventor: Kazimierz J Breiter
  • Patent number: 11063533
    Abstract: The present invention relates to a control circuit (10) for controlling a resonant power converter. It is described to generate (210) a modulation signal. A carrier signal is generates (220), wherein the generation of the carrier signal comprises measuring at least one signal from the power converter. A switching signal is generated (230) that is useable to control a value of at least one magnitude of the resonant power converter based on the modulation signal and the carrier signal.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: July 13, 2021
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Albert Garcia I Tormo, Oliver Woywode, Christoph Kahl, Bernhard Wagner
  • Patent number: 11057981
    Abstract: A system and method for providing high power factor wired lamp control that include receiving a lighting control input though a switch that is associated with at least one of: an operation and a function of at least one lamp. The system and method also include processing a digital data packet that includes at least one electronic data command associated with the lighting control input. The system and method additionally include implementing at least one powerline interruption associated with an AC power cycle to communicate the digital data packet to the at least one lamp. The system and method further include controlling the at least one lamp to operate based on the lighting control input based on the receipt of the digital data packet communicated through the AC power cycle.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: July 6, 2021
    Assignee: ENERGY FOCUS, INC.
    Inventors: Laszlo A. Takacs, Attila Tomasovics, Greg Flies, David Nicolay, John Davenport, Zhang Liang, Jay Seifert
  • Patent number: 11043838
    Abstract: According to one aspect, embodiments herein provide a UPS comprising a UPS input configured to be coupled to an AC power source and to receive input AC power, an interface configured to be coupled to a DC power source and to receive backup DC power, a UPS output configured to provide output power derived from at least one of the input AC power and the backup DC power to a load, a converter comprising a converter input coupled to the UPS input, a converter output, a first converter path coupled between the converter input and the converter output, and a second converter path coupled between the converter input and the converter output, and a controller configured to operate the first converter path and the second converter path to convert the input AC power into DC power and provide the DC power to the converter output.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: June 22, 2021
    Assignee: SCHNEIDER ELECTRIC IT CORPORATION
    Inventors: David E. Reilly, Emanuel Landsman
  • Patent number: 11043892
    Abstract: A totem-pole bridgeless power factor corrector and a power factor correction method are provided. The totem-pole bridgeless power factor corrector obtains a duty cycle of next state by a predictive valley-peak current control method, and uses an OR gate element to combine PWM signals generated by an average current control method and the predictive valley-peak current control method, thereby enabling a digital signal processor to update the duty cycle.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: June 22, 2021
    Assignee: NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Jing-Yuan Lin, Ruei-Sheng Tsai, Zhong-Heng Li, Pin-Hsien Liu, Huang-Jen Chiu
  • Patent number: 10998819
    Abstract: A DC-DC conversion scheme is described that includes a buck converter including a first switch connected in series with a first inductor, the first switch and first inductor providing a switched connected between an input and an output, a second switch being connected across output, and a DC boost arrangement connected between the first switch and the first inductor, the DC boost arrangement including second and third magnetically linked inductors, the second inductor being connected in series between the first switch and the first inductor, and the third inductor being electrically connected to a point intermediate the first and second inductors, the windings of the second and third inductors being such that a change in current flowing through the second inductor induces a boost current in the third inductor supplementing the current flowing through the second inductor.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: May 4, 2021
    Assignee: University of Plymouth
    Inventors: Mohammed Ahmed, Ali Al-Omari
  • Patent number: 10985646
    Abstract: A ZVS boost converter can include a boost inductor coupled to a DC voltage bus, a main switch configured to selectively store energy from the DC voltage bus in the boost inductor and deliver the stored energy to a load, a synchronous rectifier, and a resonant circuit coupled across the main switch. The resonant circuit can allow for zero voltage switching of the main switch and the synchronous rectifier switch. The resonant circuit can be a series resonant RC circuit. The boost converter can be operated in a continuous current mode, with the main switch operated at a constant frequency with a variable duty cycle to maintain output voltage regulation and the synchronous rectifier operated complementarily to the main switch. The duty cycle of the main switch can be controlled using a current window controller. The ZVS boost converter may be incorporated in a power factor corrected AC-DC converter.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: April 20, 2021
    Assignee: Apple Inc.
    Inventor: InHwan (Simon) Oh
  • Patent number: 10985657
    Abstract: A switch-mode power supply includes a drive transistor, an inductor, and a compensation network. The drive transistor includes a drive transistor current output terminal. The inductor includes an inductor input terminal and an inductor output terminal. The inductor input terminal is coupled to the drive transistor current output terminal. The compensation network is disposed across the inductor. The compensation network is configured to detect voltage drop across the inductor, and to conduct a current from the inductor output terminal to the drive transistor current output terminal.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: April 20, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Sangwoo Lee
  • Patent number: 10978961
    Abstract: According to one aspect of the present disclosure, a method is provided including acts of receiving input Alternating Current (AC) power, providing the input AC power to at least one diode bridge to generate Direct Current (DC) power, providing, by the at least one diode bridge, the DC power to at least one set of diodes, providing, by the at least one set of diodes, the DC power to at least one output reactor, and providing, by the at least one output reactor, the DC power to an output.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: April 13, 2021
    Assignee: SCHNEIDER ELECTRIC IT CORPORATION
    Inventor: Henning Roar Nielsen
  • Patent number: 10976764
    Abstract: A compensator is described with higher bandwidth than a traditional differential compensator, lower area than traditional differential compensator (e.g., 40% lower area), and lower power than traditional differential compensator. The compensator includes a differential to single-ended circuitry that reduces the number of passive devices used to compensate an input signal. The high bandwidth compensator allows for faster power state and/or voltage transitions. For example, a pre-charge technique is applied to handle faster power state transitions that enables aggressive dynamic voltage and frequency scaling (DVFS) and voltage transitions. The compensator is configurable in that it can operate in voltage mode or current mode.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: April 13, 2021
    Assignee: Intel Corporation
    Inventors: Sergio Carlo Rodriguez, Alexander Lyakhov, Gerhard Schrom, Keith Hodgson, Sarath S. Makala, Sidhanto Roy
  • Patent number: 10971998
    Abstract: A charging apparatus for an electric vehicle is provided. The apparatus includes an AC power input terminal receiving one AC input power from among single-phase AC power and multi-phase AC power. A power factor corrector having full bridge circuits receives the AC input power through the AC power input terminal. A link capacitor is charged through the power factor corrector. A first switch connects any one of an AC power input line and a neutral line of the AC power input terminal to the power factor corrector and a second switch selectively connects the AC power input terminal to the power factor corrector, or the link capacitor. The power factor corrector and the switch network operate based on a condition of received AC input power. The second switch includes a third switch and a fourth switch that connect each full bridge circuit to a positive battery electrode.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: April 6, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jongpil Kim, Woo Young Lee, Gyu Yeong Choe, Hyun-Wook Seong, JinYoung Yang, Jung Hong Joo, DongGyun Woo, Dong Sup Ahn, Hyung Bin Ihm, Youngkook Lee, Jin Hwan Jung, SeungHyun Han, Sihun Yang
  • Patent number: 10963032
    Abstract: A power supply and a method to provide power to a load via a power delivery network are presented. The power delivery network adds a pole and/or zero to a transfer function of the power supply. The power supply has a feedback unit to sense a load voltage at the load and to provide a feedback voltage which is indicative of the load voltage. The power supply has an input amplifier provides an error voltage based on the feedback voltage. The power supply has a power converter to provide power to the power delivery network depending on the error voltage. The power supply has an equalization unit to add a zero and/or a pole to the transfer function of the power supply, such that the pole and/or zero of the power delivery network is partially compensated. The equalization unit is located between an input amplifier and a power converter.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: March 30, 2021
    Assignee: Dialog Semiconductor (UK) Limited
    Inventors: Frank Kronmueller, Mark Childs, Ahmed Shaban
  • Patent number: 10958168
    Abstract: Methods and apparatus for operating a switched-mode power supply (SMPS). One example method generally includes comparing a signal representative of an amount of current across an inductive element of the SMPS with at least three thresholds, selecting a configuration of the SMPS based on the comparison, and configuring the SMPS based on the selection.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: March 23, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Linfei Guo, Chengwu Tao, Joseph Duncan, Xiaocheng Jing, Amir Parayandeh, Justin Philpott
  • Patent number: 10954755
    Abstract: System and method are disclosed for supplying downhole power using a high-impedance alternator. The system includes a high-impedance alternator coupled with a rectifier at its output terminals, and a current fed power converter coupled with the rectifier providing a regulated voltage to a downhole load.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: March 23, 2021
    Assignee: Halliburton Energy Services, Inc.
    Inventor: George D. Goodman
  • Patent number: 10924019
    Abstract: Generally speaking, a pulse generation unit can aid load transient response for a DC-to-DC converter. In some examples, a pulse generation unit is coupled to an output voltage of the DC-to-DC converter. The pulse generation unit includes a transient sensing unit and a clock augmentation unit. The transient sensing unit monitors the output of the DC-to-DC converter. When the transient sensing unit detects a load transient, the transient sensing unit generates an additional clock pulse. The clock augmentation unit augments an existing clock signal to include the additional clock pulse.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: February 16, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Jiwei Fan, Mingyue Zhao
  • Patent number: 10924000
    Abstract: A DC/DC converter is provided which can be produce easily and inexpensively with an alternating current component with which a superimposed direct current is reduced in an output voltage (ripple). A C+DC/DC converter includes an input and output, a series arm which is arranged between the input and the output and in which at least one first inductor and first capacitor are arranged, and a capacitor arranged in a first shunt arm at the output. A second shunt arm arranged parallel to the first shunt arm is equipped with a first switch and a second switch arranged in series and a second inductor such that the first connection of the inductor is connected to a point between the first inductor and the first capacitor and the second connection of the inductor is connected to a point between the first and the second switch.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: February 16, 2021
    Assignee: NOVUM engineering GmbH
    Inventor: Sören Birth
  • Patent number: 10925137
    Abstract: Apparatuses, systems and methods for regulating the output currents of a power supply at a target output current include a buck converter module operably connected to a power source and a load. A first switch couples the power source to the buck converter module during a first period of a given operating cycle, while the buck converter module stores and provides electrical power to the load. During a second period, a second switch may discharge, the electrical power stored during the first period. A current sensor senses the currents during at least one of the first period and the second period and, over the operating cycle, the switching times are adjusted so the average output current equals the target output current. Adjustments to the first and second period durations result in maximum and a minimum currents symmetrically disposed about the average current provided to the load during the operating cycle.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: February 16, 2021
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventor: Jean-Paul Eggermont
  • Patent number: 10911041
    Abstract: An electronic circuit module is provided. The electronic circuit module prevents damage by efficiently detecting an overcurrent in the electronic circuit module using an SiC MOSFET. The electronic circuit module includes an input unit that is configured to input a reference voltage and a switching unit that is configured to output a first voltage based on a current flow. A converter is configured to output a second voltage based on the first voltage and the reference voltage. An output unit is configured to compare a magnitude of the reference voltage with a magnitude of the second voltage to output a feedback signal when the second voltage is greater than the reference voltage.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: February 2, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Postech Academy-Industry Foundation
    Inventors: Jiwoong Jang, Ki Jong Lee, Sangcheol Shin, Ki Young Jang, Kangho Jeong, Kwang Hee Nam, Sung Jin Kim
  • Patent number: 10903745
    Abstract: A new architecture for buck LED drivers and buck DC-DC converters is disclosed for providing response to both line and loads. The architecture uses a new average current mode control scheme that does not use an error amplifier to regulate the current in the inductor in the buck converter. Even though there is no oscillator the switching frequency remains constant over line and load. The architecture provides a low cost solution with very fast response times.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: January 26, 2021
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Suresh Hariharan, Alfons Willy Leo Janssen
  • Patent number: 10898964
    Abstract: A welding-type power supply includes a controller, a preregulator, a preregulator bus, and an output converter. The controller has a preregulator control output and an output converter control output. The preregulator receives a range of inputs voltages as a power input, and receives the preregulator control output as a control input, and provides a preregulator power output signal. The preregulator includes a plurality of stacked boost circuits. The preregulator bus receives the preregulator output signal. The output converter receives the preregulator bus as a power signal and receives the output converter control output as a control input. The output converter provides a welding type power output, and includes at least one stacked inverter circuit.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: January 26, 2021
    Assignee: Illinois Tool Works Inc.
    Inventor: Bernard J. Vogel
  • Patent number: 10903793
    Abstract: Technology for a system operable to regulate an output voltage is described. The system can include an active amplifier configured to amplify an input voltage to produce the output voltage when there is active current consumption at the output voltage of the system. The system can include a standby amplifier configured to switch between amplifying the input voltage for a defined period of time and not amplifying the input voltage for a defined period of time to maintain a desired value for the output voltage of the system.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: January 26, 2021
    Assignee: Intel Corporation
    Inventors: Dhruval J. Patel, Liyao Miao, Matthew Dayley
  • Patent number: 10897192
    Abstract: A Darlington switch in series with a biasing circuit is biased in an ON state by default to generate a supply voltage for a controller integrated circuit chip during start-up. On powering up, the supply voltage for the controller integrated circuit chip rises. When the supply voltage exceeds a minimum operating voltage threshold, the controller integrated circuit chip is enabled for operation and an auxiliary supply circuit begins generating the supply voltage for the controller integrated circuit chip. The Darlington switch is turned OFF when the supply voltage being generated by the auxiliary circuit is sufficiently higher than a threshold associated with the minimum operating voltage threshold. The circuit for controlling ON/OFF state of the Darlington switch has a substantially lower static power dissipation than the biasing circuit.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: January 19, 2021
    Assignee: STMicroelectronics International N.V.
    Inventors: Akshat Jain, Saurabh Sona
  • Patent number: 10886842
    Abstract: A power supply circuit according to an embodiment includes an driver, a control circuit, and a protection circuit. The driver includes a first transistor connected between a high-potential-side power supply and a node and a second transistor connected between a low-potential-side power supply and the node. The control circuit generates, according to an output voltage to a load connected to the node via a first low-pass filter circuit, first and second switching pulses for alternately switching the first and second transistors. The protection circuit outputs, when a voltage of the node via a second low-pass filter circuit exceeds a first reference voltage, an interruption signal for making at least the first transistor nonconductive.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: January 5, 2021
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
    Inventors: Toshio Nagasawa, Takuya Hirakawa
  • Patent number: 10879803
    Abstract: A power converter includes a power conversion circuit, an adaptive compensator coupled to a first output of the power conversion circuit, the adaptive compensator including, a voltage receiving circuit to generate a first current and a second current, a current mirror circuit coupled to the voltage receiving circuit, wherein the current mirror circuit replicates at least one of the first current or the second current, and a second output of the adaptive compensator, and a comparator to receive an input that is related to the second output of the adaptive compensator.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: December 29, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Jussi Matti Aleksi Särkkä, Ari Kalevi Väänänen
  • Patent number: 10873218
    Abstract: A wirelessly powered implantable medical device, a system for synchronized time-division wireless power transfer, and a method for closed-loop carrier waveform adaption for wireless power control are provided. The system for synchronized time-division wireless power transfer includes a wireless transmitter for generating and transmitting time-division wireless power transfer signals and a wirelessly powered device. The wirelessly powered device includes a wireless receiver for receiving the time-division wireless power transfer signals and a time division switching module. The time division switching module is coupled to the wireless receiver and generates multiple supply voltages synchronized to the time-division wireless power transfer signals for powering different circuitry of the wirelessly powered device.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: December 22, 2020
    Assignee: Agency for Science, Technology and Research
    Inventors: Lei Yao, Jia Hao Cheong, Yuan Gao
  • Patent number: 10863919
    Abstract: The present application discloses a gradient power amplifier debugging method and system. The method may comprise initializing a control unit of the gradient power amplifier debugging system; retrieving a characteristic output of the control unit; computing a load inductance parameter L according to the characteristic output; and adjusting the control parameter of the control unit according to the load inductance parameter L. The control unit may comprise a close-loop control sub-unit, or a feedforward control sub-unit. The characteristic output may be representative of the difference between an output signal and an input signal of the gradient power amplifier debugging system. The control parameter may comprise a proportional coefficient, an integral coefficient, or a cutoff frequency of the filter.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: December 15, 2020
    Assignee: Shanghai United Imaging Healthcare Co., Ltd.
    Inventors: Mingyu Xue, Bin Cao, Xu Chu
  • Patent number: 10855163
    Abstract: A supply method of a dual-chip power circuit, and a dual-chip power circuit are provided. The dual-chip power circuit includes an inductor, a conduction element, a first chip and a second chip. The first chip includes a control circuit and a supply circuit. The second chip includes a first switch and a drive control circuit, and the drive control circuit is connected to a control end of the first switch. The supply method includes the following steps. When starting, the drive control circuit controls the power circuit to operate in an open-loop state; and if the output voltage of the supply circuit is detected to be established, the supply circuit supplies power to the control circuit, the drive control circuit of the second chip receives an output voltage of the first chip, and then the power circuit operates in a closed-loop state.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: December 1, 2020
    Assignee: JOULWATT TECHNOLOGY (HANGZHOU) CO., LTD.
    Inventors: Hao Long, Xunwei Zhou
  • Patent number: 10855186
    Abstract: Resonant power converters that replace the conventional impedance matching stage with series or parallel connections between resonant inverters and resonant rectifiers are provided. Two or more resonant rectifiers can be connected in series or in parallel to the resonant inverter to provide impedance matching. Similarly, two or more resonant inverters can be connected in series or in parallel to the resonant rectifier to provide impedance matching. Electrical isolation of DC voltage between input and output is provided using only capacitors.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: December 1, 2020
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Luke C. Raymond, Wei Liang, Juan M. Rivas Davila
  • Patent number: 10848070
    Abstract: A switched-tank DC transformer and a voltage ratio switching method thereof are provided. The switched-tank DC transformer includes an input terminal, an output terminal, 2n inverting switches, 2n rectifying switches, 2n?2 clamping switches, n resonance tanks and n?1 support capacitors. The inverting switches are serially connected in sequence. There is an inverting node between every two neighboring inverting switches. A terminal of the rectifying switch is connected with a rectifying node. A terminal of the two clamping switch is electrically connected with a clamping node. The resonance tank is electrically connected between the inverting node and the rectifying node. The support capacitor is electrically connected between the inverting node and the clamping node. Every support capacitor and every resonance tank is switchable to be in a normal state or a voltage ratio switching state, thus a voltage ratio of the switched-tank DC transformer is allowed to vary correspondingly.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: November 24, 2020
    Assignee: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
    Inventors: Ming Li, Yiqing Ye
  • Patent number: 10848061
    Abstract: An apparatus may include a power converter having a power supply input for receiving an input power supply voltage generated by a power supply, an output for generating an output voltage to a load, and a power inductor coupled between the power supply input and the output may and further include an energy storage element coupled to the power supply input, the power inductor, and the output such that operation of the power inductor is split temporally between delivering energy to the energy storage element and delivering energy to the load, and operation of the energy storage element is split temporally between delivering energy to the load and receiving energy from one or both of the power supply and the load.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: November 24, 2020
    Assignee: Cirrus Logic, Inc.
    Inventors: Eric J. King, Siddharth Maru, John L. Melanson
  • Patent number: 10848057
    Abstract: A two-stage microinverter for coupling a PV panel to a power grid includes a DC/DC converter stage having an input for coupling to the PV panel and a DC/AC inverter stage that has an output for coupling to the grid, with at least one DC link capacitor between the DC/DC converter and DC/AC inverter stage. A synchronous controller that includes a loop compensator coupled to a mixer is between an analog-to-digital converter (ADC) and a phase-locked loop (PLL) for coupling to an output voltage from the grid. The ADC receives a DC link voltage from the DC link capacitor. An output of the PLL is for controlling a timing of sampling by the ADC of the DC link voltage so that the ADC samples the DC link voltage when an AC component of a ripple voltage on the DC link voltage intersects an average value of the DC link voltage.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: November 24, 2020
    Assignee: University of Central Florida Research Foundation, Inc.
    Inventors: Seyed-Milad Tayebi, Issa Batarseh