Electricity: power supply or regulation systems patents - Monitor Patents
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Electricity: power supply or regulation systems

Below are recently published patent applications awaiting approval from the USPTO. Recent week's RSS XML file available below.
Listing for abstract view: USPTO application #, Title, Abstract excerpt,Patent Agent. Listing format for list view: USPTO National Class full category number, title of the patent application.
  
05/21/2015 > 18 patent applications in 12 patent subcategories.

20150137772 - Power factor correction sub-system for multi-phase power delivery: Systems and methods are disclosed for providing power factor correction (“PFC”) for multi-phase power delivery. A PFC sub-system can include multiple active PFC modules and multiple isolated DC-to-DC converters. Each active PFC module can increase a respective power factor associated with a respective phase of the multi-phase power system. Each... Agent:

20150137774 - Current limit control with constant accuracy: The present document relates to a current sensing and/or control circuit with reduced sensing errors. A current control circuit for controlling a load current into an electronic device is described. The current control circuit comprises an array of control transistors configured to adjust the load current provided at an output... Agent: Dialog Semiconductor Gmbh

20150137773 - Load sensing voltage charge pump system: A load-sensing voltage charge pump system may include a plurality of reference voltage inputs including a target voltage input. The system may also include a plurality of voltage charge pump segments equal in number to the plurality of reference voltage inputs. A voltage charge pump segment may include: a regulator... Agent: International Business Machines Corporation

20150137775 - Control circuit applicable to power converter and operation method thereof: A control circuit includes an auxiliary pin for receiving an auxiliary voltage of an auxiliary winding of a power converter; a first detection unit for detecting a first time point when the auxiliary voltage begins resonance, and outputting a first detection signal according to the first time point; a second... Agent:

20150137778 - Dc-dc converter: According to one embodiment, a DC-DC converter includes a comparator circuit that compares a feedback voltage of an output voltage with a reference voltage and a control circuit that controls an output voltage based on an output signal of the comparator circuit. The comparator circuit performs a discrete-time operation in... Agent:

20150137776 - Dc-dc converter with enhanced automatic switching between ccm and dcm operating modes: A DC-DC converter transitions between continuous conduction mode (CCM) and discontinuous conduction mode (DCM) without causing any overshoot or undershoot deviation output voltage. The DC-DC converter operates in a PWM mode in CCM. During DCM, it skips PWM pulses when a sustained negative current is detected in an output inductor.... Agent: Stmicroelectronics International N.v.

20150137777 - Electronic system, voltage conversion circuit and method thereof: A voltage conversion circuit is disclosed. The voltage conversion circuit comprises an energy-storing inductor, an N-type transistor, a P-type transistor, a current comparator, a multiplexer, a first driver and a second driver. When load connected to the voltage conversion circuit is a light load, the P-type transistor will be switched... Agent: Anpec Electronics Corporation

20150137779 - Matrix converter and method for controlling matrix converter: A matrix converter according to an embodiment includes a plurality of bidirectional switches disposed between an AC power source and an AC load, and a controller that controls the bidirectional switches. The controller corrects an output voltage reference based on an oscillation component of an input current and/or an input... Agent: Kabushiki Kaisha Yaskawa Denki

20150137781 - Low dropout circuit capable of controlled startup and method of controlling same: A low dropout (LDO) circuit capable of controlled startup and a method of controlling the same are disclosed herein. The LDO circuit includes an amplifier, a pass element, and a startup control circuit. The amplifier receives a feedback voltage determined by an output voltage and a predetermined reference voltage, and... Agent: Silicon Works Co., Ltd.

20150137780 - Self-adjustable current source control circuit for linear regulators: A self-adjustable current source control circuit utilizes a replica output stage, a sink current source that generates a reference current, and a negative feedback circuit to generate a sink current between a linear regulator output terminal and ground only when a load circuit connected to the linear regulator is in... Agent: Tower Semiconductor Ltd.

20150137783 - Method, apparatus and system for controlling an electrical load: Disclosed is a system, apparatus and method for controlling an electrical load. A bypass device is provided in parallel with the electrical load, which in use, adopts a high conduction or low impedance state when a controller controlling the electrical load is in a low conduction or off state. In... Agent:

20150137784 - Switching power supply circuit: A switching power supply circuit includes a semiconductor switching element that is ON/OFF-controlled and controls current through an inductance, an output capacitor that stores power delivered from the inductance through a boost diode, a bypass diode that bypasses the inductance and delivers a DC voltage given to the inductance to... Agent:

20150137782 - Systems and methods to monitor current in switching converters: Various embodiments of the invention increase current monitoring accuracy in switching converters. In particular, certain embodiments of the invention allow reduce noise associated with transients that are typically generated at transitions when power FETs are turn on and off and allow to accurately sense inductor DC current of switching converters,... Agent: Maxim Integrated Products, Inc.

20150137785 - Output regulation with nonlinear digital control loop compensation: A digital compensator combines a version of the input voltage with a version of the output current or voltage in such a way as to eliminate dependence on variations in the input voltage.... Agent:

20150137786 - Overvoltage limiter in an aircraft electrical power generation system: A method of limiting a generator voltage in an overvoltage condition includes the steps of determining an amount of overvoltage of a generator output voltage exceeding a specified voltage and calculating a reference threshold voltage based upon the duration of overvoltage. A switch is modulated according to a voltage error... Agent:

20150137787 - Dc-dc converter circuit arrangement: DC-DC converter circuit arrangement (1) consisting of one multiphase DC-DC converter (MW1, . . . , MWn) for transporting energy between two electrical systems, comprising of several converter circuits (WS1.1, . . . , WS1.m, . . . , WSn.1, . . . , WSn.m), whereby each converter circuit (WS1.1,... Agent:

20150137788 - Buck circuit: An apparatus may be provided. The apparatus may comprise a first circuit portion, a second circuit portion, and a third circuit portion. The first circuit portion may comprise a voltage supply having an input voltage level (Vin) and a first switch. The second circuit portion may comprise a plurality of... Agent: Cisco Technology, Inc.

20150137789 - System and method for a serial bus interface: In accordance with an embodiment, a method of operating a charging port having a power connection and a first data connection includes determining whether a compatible device is coupled to the charging port and receiving a serial data stream from the compatible device via the first data connection. The serial... Agent: Infineon Technologies Ag

  
05/14/2015 > 15 patent applications in 10 patent subcategories.

20150130426 - Digital current equalizing device, analog current equalizing device, current equalizing method and system: Provided are a digital current equalizing device, an analog current equalizing device, a current equalizing method and a system. The digital current equalizing device comprises: an output current sampling amplifying module (102), a digital processing module (104), and a main power frequency conversion module (106). An input terminal of the... Agent: Zte Corporation

20150130427 - Low dropout regulator and related method: A device is configured to provide low dropout regulation. An amplifier stage includes a first transistor electrically connected to an output of the device, and a second transistor. A current mirror includes a third transistor electrically connected to the second transistor, and a fourth transistor electrically connected to the third... Agent: Taiwan Semiconductor Manufacturing Company, Ltd.

20150130429 - Feeding apparatus and feeding method: A feeding apparatus feeds an electric power to an object to which the electric power is fed. The feeding apparatus includes a DC/DC converter and a driver. The DC/DC converter outputs a PWM signal. The driver feeds the electric power to the object to which the electric power is fed... Agent:

20150130428 - Level shift circuit and dc-dc converter for using the same: A level shift circuit and a DC-DC buck converter controller for using the same are disclosed. The level shift circuit is capable of detecting a state of a converting circuit, and avoids a current leakage when determining that the converting circuit is operating under a light-load. Therefore, the level shift... Agent: Green Solution Technology Co., Ltd.

20150130430 - Output switching circuit: An output switching circuit includes a switching circuit having a first transistor connected to a high-voltage power supply, a second transistor connected to a low-voltage power supply, and an output s terminal at a connection node between the first and second transistors; a comparison unit that compares an input signal... Agent: Spansion LLC

20150130431 - Matrix converter and method for compensating for output voltage error: A matrix converter includes a power converter, a command generator, and a commutation controller. The power converter includes bidirectional switches each having a conducting direction controllable by switching elements. The bidirectional switches are disposed between input terminals coupled to phases of an AC power source and output terminals coupled to... Agent: Kabushiki Kaisha Yaskawa Denki

20150130432 - Matrix converter and method for compensating for output voltage error: A matrix converter includes a power converter, a control information generator, a commutation controller, a storage, and an error compensator. The power converter includes bidirectional switches each having a conducting direction controllable by switching elements. The bidirectional switches are disposed between input terminals and output terminals. The input terminals are... Agent: Kabushiki Kaisha Yaskawa Denki

20150130433 - Constant power availability for load switches with foldback current: Load switch supply circuits and methods are provided that allow a load switch to maintain power delivery without having the load switch encounter thermal or power overload conditions. In an example, a load switch supply circuit can include a multiplier circuit configured to receive a first representation of voltage across... Agent:

20150130434 - Fast current limiting circuit in multi loop ldos: A circuit and method for providing a current limiting feature in a low dropout (“LDO”) linear voltage regulator. A pass element generates an output voltage that is less than the input voltage. The pass element is normally enabled by an error amplifier that compares a feedback signal from the output... Agent:

20150130435 - Timing controlled ac to dc converter and method: A timing controlled converter and method for converting a time varying input signal to a regulated DC output voltage for application to a load circuit. A feedback loop is employed as a control means for switchably coupling the time varying input signal to the load circuit for controlled periods of... Agent: Alfred E Mann Foundation For Scientific Research

20150130436 - Apparatus and system for noise cancellation of power converters: An apparatus and system comprise a noise cancelation power converter being configured for phase inverted synchronous operation with respect to a primary power converter. The primary power converter is operable to supply power to at least one device. The primary power converter produces a first electromagnetic interference during operation to... Agent:

20150130437 - Dc-dc converter: A DC-DC converter includes a main reactor disposed in a main energization path, a first main switching element disposed in the main energization path and on-off controlled to cause current flowing through the main reactor to intermittently flow, a second main switching element forming a discharge loop configured to discharge... Agent: Kabushiki Kaisha Toshiba

20150130438 - Overcurrent detection of load circuits with temperature compensation: An improved current limiting circuit comprising a switch having a first terminal and a second terminal, the first and second terminal configured to connect a power supply to a load. A first resistor connected in series between the first terminal and a first constant current source. A second resistor connected... Agent: Littelfuse, Inc.

20150130439 - Current balancing device and method: The present invention discloses a current balancing device and method capable of balancing an output current and an input current of a current loop. Said device comprises: a transmission circuit for outputting an output current and receiving an input current; at least one adjustable resistor set in the current loop... Agent:

20150130440 - Dc-dc converter: A DC-DC converter includes a voltage conversion circuit boosting a voltage of a DC power supply and supplying the voltage to a load, a bypass circuit provided in parallel to the voltage conversion circuit, a drive circuit turning on and off a switching element of the bypass circuit, and a... Agent: Omron Automotive Electronics Co., Ltd.

  
05/07/2015 > 20 patent applications in 14 patent subcategories.

20150123626 - Power control apparatus, power control method, and power control program: A power control apparatus includes: a first obtainment unit which obtains a power flow value at a power flow measuring point and a voltage value at a voltage measuring point provided; a power flow control unit which calculates a first power change value, to cause the power flow value to... Agent:

20150123627 - Power converters and compensation circuits thereof: In an embodiment, a circuit includes a Direct Current (DC)-DC buck-boost converter and a controller. The controller includes an error amplifier configured to receive a feedback signal responsive to an output signal of the buck-boost converter. The error amplifier is configured to compare the feedback signal and a reference signal... Agent: Texas Instruments Incorporated

20150123628 - Apparatus and method for a voltage regulator with improved power supply reduction ratio (psrr) with reduced parasitic capacitance on bias signal lines: An apparatus and method for a system with improved power supply rejection ratio (PSRR) over a wide frequency range. The improved PSRR is achieved by negating the influence of the parasitic capacitance associated with the bias lines and the introduction of a regulated power supply with embodiments associated with providing... Agent: Dialog Semiconductor Gmbh

20150123632 - Adaptive dead-time control: A DC-to-DC converter includes first and second switches connected to each other at a node and biased by PWM pulses. A timing module determines a first time difference between a first edge of a first signal at the node and a first edge of a second signal at a control... Agent:

20150123631 - Over voltage protection control method and circuit for four-switch buck-boost converter: In one embodiment, a method of over voltage protection control can include: (i) determining whether an output voltage of a buck-boost converter is in an over voltage condition, where the buck-boost converter includes a first switch coupled to an input terminal and an inductor, a second switch coupled to ground... Agent:

20150123629 - Overcurrent protection power supply apparatus: In a high voltage power supply apparatus, e.g., for an electric or hybrid vehicle, current is supplied from a high-voltage DC power source to a load via a power FET. A voltage detecting circuit detects the drain-source voltage VDS of the power FET when the current flows through the power... Agent:

20150123630 - Voltage converter with vcc-less rdson current sensing circuit: In one implementation, a voltage converter includes a driver providing a gate drive for a power switch and a sense circuit coupled across the power switch. The gate drive provides power to the sense circuit, and the sense circuit provides a sense output to the driver corresponding to a current... Agent: International Rectifier Corporation

20150123633 - Passgate strength calibration techniques for voltage regulators: Systems and methods are provided to regulate a supply voltage of a load circuit. For example, a system includes a voltage regulator circuit that includes a passgate device. The system includes a passgate strength calibration control module which is configured to (i) obtain information which specifies operating conditions of the... Agent:

20150123634 - Integrated regulator, in particular voltage regulator, and controller for passenger protection means, with configurable output voltage of the controller: An integrated regulator, in particular a voltage regulator, for a personal protection arrangement in a vehicle, includes a regulating element that converts an input signal into an output signal having a defined value, and a control application circuit that applies control to the regulating element to generate the output signal... Agent:

20150123635 - Voltage regulator apparatus with sensing modules and related operating method thereof: A voltage regulator apparatus and an associated method are provided, where the voltage regulator apparatus includes: a voltage regulator module for regulating an input voltage according to a bandgap reference voltage to generate an output voltage; and a plurality of sensing modules. Ina situation where the output voltage abruptly decreases,... Agent:

20150123636 - Cuk based current source: Disclosed is a Ćuk based current source, a control circuit for a Ćuk based current source, and a method for providing a current.... Agent:

20150123637 - Power supply device: A power supply device includes an output semiconductor element and a clamp circuit. The output semiconductor element is provided between a power supply line and an output terminal. The output semiconductor element is driven and switched so as to supply electric power to an inductive load connected to the output... Agent: Fuji Electric Co., Ltd.

20150123638 - Startup clamp circuit for non-complimentary differential pair in dcdc converter system: A DCDC converter includes a transconductance amplifier, a comparator, a current driving component, an output impedance, a switch, a clamp resistor and a p-channel FET. The transconductance amplifier outputs a transconductance current and a switch control signal. The comparator has a two n-channel FET inputs forming a differential pair and... Agent: Texas Instruments Deutschland Gmbh

20150123640 - Charge and discharge signal circuit and dc-dc converter: A charge and discharge signal circuit includes: high side transistors connected in series; low side transistors connected in series; high side drive circuits; low side drive circuits; and a drive signal generation circuit, wherein each drive circuit includes: a level shifter; a capacitor switch string connected in series, being connected... Agent:

20150123639 - System for controlling power-up sequence: Disclosed is a system for controlling a power-up sequence applicable to a power controller of a lane departure warning system, including: one DC/DC converter unit configured to convert a first input voltage of input power and output the converted first input voltage as a first output voltage, and including four... Agent: Hyundai Mobis Co., Ltd.

20150123641 - Systems, devices, and methods for control of a power supply connection: A power supply control circuit for a portable electronic device is capable of connecting and disconnecting a power supply with respect to an electrical load of the device. The power supply control circuit offers a relatively quick transition time and low leakage current, making the control circuit particularly suitable for... Agent:

20150123642 - Current generator device and method of generating a current wave: Current generator device comprising a processing unit (2) comprising: —an input module (6) designed to acquire input data representing a desired current wave; —a management and control module (8) connected to the input module (6) and designed for: receiving the input data; generating a primary voltage wave; —an output module... Agent:

20150123643 - Bandgap circuit with temperature correction: A temperature corrected voltage bandgap circuit is provided. The circuit includes first and second diode connected transistors. A first switched compare circuit is coupled to the one transistor to inject or remove a first current into or from the transistor. The first current is selected to correct for curvature in... Agent:

20150123645 - Power supply unit having heat dissipation structure: A power supply unit includes: a transformer; a primary component that constitutes a primary circuit connected to the transformer; a secondary component that constitutes a secondary circuit connected to the transformer; a choke coil; a base plate including the transformer, the primary component, the secondary component and the choke coil;... Agent:

20150123644 - Transformer for power line communication: Disclosed is a transformer for power line communication, capable of performing power line communication without being influenced by voltage attenuation due to voltage conversion. The transformer for power line communication includes: a transforming unit configured to convert a high primary voltage into a low secondary voltage, or convert a low... Agent: Lsis Co., Ltd.

  
04/30/2015 > 27 patent applications in 14 patent subcategories.

20150115905 - Power compensator: A power compensator for compensating voltage at a location along a power transmission line, the compensator having a controller for controlling a voltage generated across the compensator, wherein the voltage is controlled to maintain a power transmission line voltage at a value dependent on the power transmission line location.... Agent: Imperial Innovations Limited

20150115906 - Matrix converter: A matrix converter includes: a power converter configured to couple an AC power supply and a load together; and a controller configured to selectively execute: a first control mode in which the controller is configured to perform power conversion between the AC power supply and the load; and a second... Agent: Kabushiki Kaisha Yaskawa Denki

20150115907 - Non-linear system control methods: In various embodiments, a control system for an electronic circuit iteratively applies voltage to and senses current from a load to regulate operation of the load.... Agent:

20150115908 - Phase offset compensation for multiphase dc-dc converter: The present document relates to multiphase DC-DC power converters. In particular, the present document relates to the compensation of the phase offset incurred in multiphase DC-DC power converters which are controlled based on coil current zero crossing. A control circuit for a multiphase power converter is described. The multiphase power... Agent: Dialog Semiconductor Gmbh

20150115909 - Zero voltage switching: A method for providing non-resonant zero-voltage switching in a switching power converter. The switching power converter converts power from input power to output power during multiple periodic switching cycles. The switching power converter includes a main switch and an auxiliary capacitor adapted for connecting to the main switch, and an... Agent:

20150115911 - Adaptive off time control scheme for semi-resonant and hybrid converters: In one implementation, a voltage converter includes a high side power switch, and first and second low side power switches. The voltage converter also includes a driver stage for driving the high side power switch and the first and second low side power switches, and an adaptive OFF-time control circuit... Agent: International Rectifier Corporation

20150115914 - Control circuit, switching converter and associated method: A control circuit and a control method for a switching converter. The control circuit has a clock circuit and a comparing circuit. The clock circuit is configured to generate a clock signal to make at least one switch to operate in a first state once a rising edge of the... Agent:

20150115913 - High frequency series ac voltage regulator: A bidirectional AC series voltage regulator that regulates an output AC voltage level regardless of the varying AC input voltage utilizing high frequency series inductors that only process a proportion of the total output power. The AC series voltage regulator detects the power inductor current direction data signal and can... Agent:

20150115910 - Power supply with enhanced phase current sharing: A system, power supplies, controller and method for enhanced phase current sharing are disclosed. For example, a power supply for enhanced phase current sharing is disclosed, which includes a plurality of power modules, a communication bus coupled to an input of each power module of the plurality power modules, and... Agent:

20150115915 - Power switching voltage regulator: A power switching voltage regulator includes a high-side switch, a low-side switch, an inductor, a detection circuit, and a gate voltage adjusting unit. The high-side switch is coupled to a voltage source; the low-side switch is coupled between the high-side switch and a ground. A connection node is located between... Agent:

20150115912 - Reference voltage generator: Provided is a reference voltage generator having flat temperature characteristics. The reference voltage generator includes a resistor (3) surrounding a periphery of a depletion MOS transistor (1) of a first conductivity type which is connected so as to function as a current source for causing a constant current to flow,... Agent:

20150115917 - Control circuit for interleaved switching power supply: In one embodiment, a control circuit configured for an interleaved switching power supply, can include: (i) a feedback compensation signal generation circuit configured to sample an output voltage of the interleaved switching power supply, and to generate a feedback compensation signal; (ii) a first switch control circuit configured to compare... Agent:

20150115916 - Control method for a power supply system: A control method for a power supply system having at least two power parts with power outputs connected in parallel, wherein each power part is actuated via a separate control and where at least one first power limit is specified for each control, where the control actuates the allocated power... Agent:

20150115918 - Low drop out supply asymmetric dynamic biasing: Methods and apparatus for a dynamic bias generator are provided. In an example, a dynamic bias generator for a voltage regulator can include a slope generator and a peak detector coupled to the slope generator. In certain examples, the slope generator and the peak detector can receive a representation of... Agent:

20150115920 - Continuous comparator with improved calibration: An auto-calibrated current sensing comparator is provided. A secondary dynamic comparator shares the same inputs and acts to adjust a calibration control of the current sensing comparator. The calibration control may be in the form of adjusting the offset of the current sensing comparator or adjusting a propagation delay that... Agent:

20150115922 - Current feedback method, current feedback circuit, driving circuit and switching power supply thereof: In one embodiment, a current feedback circuit can include: (i) a first current mirror circuit having an input terminal coupled to a source of a main power transistor of a switching power supply, and a control terminal configured to receive a PWM control signal, the first current mirror circuit being... Agent:

20150115919 - Programmable current limit circuit for a programmable power supply: A control circuit of a power supply is provided. The control circuit includes a circuit and a PWM circuit. The circuit generates a limit signal in response to an output voltage of the power supply for limiting a switching current of a transformer of the power supply. The PWM circuit... Agent:

20150115921 - Programmable frequency decrease circuit for a programmable power supply: A control circuit and a method for a programmable power supply are provided. The control circuit and the method modulate a switching frequency of a switching signal in response to a feedback signal and an output voltage of the programmable power supply. The switching signal is used for switching a... Agent:

20150115925 - A/d converter and semiconductor integrated circuit: According to one embodiment, an A/D converter includes a first delay cell column in which a plurality of delay cells, to which a first bias current corresponding to a difference voltage between an input voltage and a reference voltage is supplied, is connected in series. The converter includes a second... Agent:

20150115924 - Control circuit module for power factor corrector: A control circuit module for a power factor corrector is provided to convert the operation mode of the inductor current from the boundary conduction mode (BCM) to the discontinuous conduction mode (DCM) when a transistor element is operated under the valley inductor current, thus reducing the switching frequency and increasing... Agent:

20150115923 - Load current readback and average estimation: A switching regulator or other apparatus or techniques can include load current monitoring to provide a digital representation of an estimated load current. Load current monitoring can be performed by a circuit including a counter circuit, a comparator circuit, and a digitally-controlled source coupled to the counter circuit and configured... Agent: Analog Devices Technology

20150115926 - Power supply device: There is provided a power supply device including: a SEPIC/Zeta converter having an energy storage unit; and a power transmitting unit transmitting the energy stored in the SEPIC/Zeta converter to a load stage.... Agent: Samsung Electro-mechanics Co., Ltd.

20150115927 - Method and apparatus for generating a direct current bias: A voltage detector operates to detect a system power supply voltage and generate a trigger signal. A control signal generator responds to the trigger signal and generates a control signal. A DC bias generator responds to the control signal by generating a DC bias. The control signal controls the DC... Agent: Stmicroelectronics (shenzhen) R&d Co. Ltd

20150115928 - Input circuit: In aspects of the invention, a zap circuit and a decoder for decoding the output of the zap circuit turn ON only one analog switch in a selector. The selector delivers an electric potential at a node of a dividing resistor selected by the zap circuit. The output of the... Agent:

20150115929 - Method and apparatus for generating piece-wise linear regulated supply: The disclosure provides a voltage regulator for generating piece-wise linear regulated supply voltage. The voltage regulator includes a first clamp circuit that receives a reference voltage and an analog supply voltage. A second clamp circuit receives the reference voltage. A voltage divider circuit is coupled to the first clamp circuit... Agent: Texas Instruments Incorporated

20150115930 - Reference voltage generator: Provided is a reference voltage generator having flat temperature characteristics. The reference voltage generator includes a depletion MOS transistor (5) of a first conductivity type connected so as to function as a current source and configured to cause a constant current to flow, and a depletion MOS transistor (6) of... Agent:

20150115931 - Power supply device, power supply system and method for controlling the same: A power supply system may include a target device and an adapter. The target device may include an adapter connection switch that receives adapter recognition information to form a connection with the adapter, a voltage detection unit that receives an output voltage from an adapter, and a voltage-change-requesting unit that... Agent: Samsung Electro-mechanics Co., Ltd.

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