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公开(公告)号：US11239752B2
公开(公告)日：2022-02-01
申请号：US15229616
申请日：2016-08-05
Inventor： Jeffrey Allen May , Eric J. King , Ku He , Sarang Vadnerkar , Ullas Pazhayaveetil , Theodore M. Burk
Abstract: A method may include monitoring an input power supply, monitoring an inductance of an inductor of a boost converter, monitoring one or more other characteristics of the boost converter, and calculating a target peak inductor current based on the input power supply voltage, the inductance, the one or more other characteristics of the boost converter, and a target average current of the inductor during a switching cycle of the boost converter. A method may include monitoring an input power supply voltage, monitoring an inductance of an inductor of a boost converter, monitoring one or more other characteristics of the boost converter, and calculating an average current of the inductor during a switching cycle of the boost converter based on the input power supply voltage, the inductance, the one or more other characteristics of the boost converter, and a peak inductor current of the inductor.
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公开(公告)号：US10958171B2
公开(公告)日：2021-03-23
申请号：US15986200
申请日：2018-05-22
Inventor： Sarang Vadnerkar , Ullas Pazhayaveetil , Theodore M. Burk , Jeffrey May
Abstract: A DC-DC converter and a corresponding method for maintaining an output voltage of the DC-DC converter, wherein the DC-DC converter is configured to operate in a discontinuous conduction mode, within a predetermined voltage range. The method comprises adjusting a duty cycle of the DC-DC converter based on the output voltage to maintain the output voltage within a predetermined voltage range; wherein the duty cycle of the DC-DC converter is adjusted by switching between a first switching frequency to a second switching frequency, and the first switching frequency and the second switching frequency are selected such that the first switching frequency and the second switching frequency fall outside of at least one predefined disallowed frequency band.
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Patent Agency Ranking
公开(公告)号：US10749431B2
公开(公告)日：2020-08-18
申请号：US16227884
申请日：2018-12-20
Inventor： Ullas Pazhayaveetil , Sarang Vadnerkar , Theodore M. Burk , Jeffrey May
Abstract: A DC-DC converter and corresponding method for transitioning between a discontinuous conduction mode, DCM, and a continuous conduction mode, CCM, wherein the DC-DC converter is configured to power a signal processing system within an integrated circuit, is provided. The method comprises receiving input data, wherein the input data is for inputting into the signal processing system; determining an amplitude of the input data; and transitioning between DCM and CCM based on the amplitude of the input data. A DC-DC converter and respective method for transitioning from CCM to DCM comprising determining an estimated current representative of an inductor current through an inductor of the DC-DC converter; and transitioning from CCM to DCM based on the estimated current, is provided. A DC-DC converter and respective method for transitioning from DCM to CCM comprising determining either an output voltage of the DC-DC converter or a duty cycle of the DC-DC converter; and transitioning from DCM to CCM based on the determined output voltage or duty cycle of the DC-DC converter, is provided.
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公开(公告)号：US11837956B2
公开(公告)日：2023-12-05
申请号：US17478433
申请日：2021-09-17
Inventor： Hasnain Akram , Graeme G. Mackay , Lingli Zhang , Ruoxin Jiang , Sakkarapani Balagopal , Theodore M. Burk
CPC classification number: H02M3/158 , H02M1/0009 , H02M1/32
Abstract: A method for determining if an inductor coupled to a switching network has been electrically shorted may include applying a voltage across the inductor for a predetermined period of time, controlling an impedance in an electrical path of a voltage source generating the voltage and the inductor, sensing an inductor current through the inductor, comparing the inductor current with a predetermined current threshold, and determining whether the inductor has been electrically shorted based on the inductor current, the predetermined current threshold, and the predetermined period of time.
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5.发明授权公开(公告)号：US11476766B2
公开(公告)日：2022-10-18
申请号：US17119517
申请日：2020-12-11
Inventor： Jason W. Lawrence , Eric J. King , Graeme G. Mackay , Theodore M. Burk
Abstract: A system for controlling a current in a power converter may include an outer control loop configured to use an outer set of output voltage thresholds for an output voltage generated by the power converter in order to provide hysteretic control of the current, an inner control loop configured to use an inner set of output voltage thresholds for the output voltage in order to provide continuous control of the current, the inner control loop further configured to measure a time duration required for the output voltage to cross a single pair of two output voltage thresholds of the inner set of output voltage thresholds in order to determine an input-referred estimate of a current load of the power converter and set a peak current threshold and a valley current threshold for the current based on the input-referred estimate of the current load.
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6.发明授权公开(公告)号：US11424682B2
公开(公告)日：2022-08-23
申请号：US17119517
申请日：2020-12-11
Inventor： Jason W. Lawrence , Eric J. King , Graeme G. Mackay , Theodore M. Burk
Abstract: A system for controlling a current in a power converter may include an outer control loop configured to use an outer set of output voltage thresholds for an output voltage generated by the power converter in order to provide hysteretic control of the current, an inner control loop configured to use an inner set of output voltage thresholds for the output voltage in order to provide continuous control of the current, the inner control loop further configured to measure a time duration required for the output voltage to cross a single pair of two output voltage thresholds of the inner set of output voltage thresholds in order to determine an input-referred estimate of a current load of the power converter and set a peak current threshold and a valley current threshold for the current based on the input-referred estimate of the current load.
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公开(公告)号：US10461638B2
公开(公告)日：2019-10-29
申请号：US15984965
申请日：2018-05-21
Inventor： Ullas Pazhayaveetil , Sarang Vadnerkar , Theodore M. Burk , Jeffrey May
Abstract: A DC-DC converter and corresponding method for transitioning between a discontinuous conduction mode, DCM, and a continuous conduction mode, CCM, wherein the DC-DC converter is configured to power a signal processing system within an integrated circuit, is provided. The method comprises receiving input data, wherein the input data is for inputting into the signal processing system; determining an amplitude of the input data; and transitioning between DCM and CCM based on the amplitude of the input data. A DC-DC converter and respective method for transitioning from CCM to DCM comprising determining an estimated current representative of an inductor current through an inductor of the DC-DC converter; and transitioning from CCM to DCM based on the estimated current, is provided. A DC-DC converter and respective method for transitioning from DCM to CCM comprising determining either an output voltage of the DC-DC converter or a duty cycle of the DC-DC converter; and transitioning from DCM to CCM based on the determined output voltage or duty cycle of the DC-DC converter, is provided.
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