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公开(公告)号：US20230188044A1
公开(公告)日：2023-06-15
申请号：US18061591
申请日：2022-12-05
Inventor： Jason W. LAWRENCE , Graeme G. MACKAY
CPC classification number: H02M3/1586 , H02M1/14
Abstract: A system for generating a plurality of switch control signals of a multiphase power converter may include a plurality of inputs, each input of the plurality of inputs configured to receive a respective control signal for controlling a respective phase of the multiphase power converter, and a plurality of control paths comprising a control path for each respective control signal, each control path configured to, for its respective control signal, control a switching period of the respective control signal for such control path based on a measure of alignment among the respective control signal for such control path and the other respective control signals of the other control paths.
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2.发明申请公开(公告)号：US20190386561A1
公开(公告)日：2019-12-19
申请号：US16441449
申请日：2019-06-14
Inventor： Eric J. KING , Siddharth MARU , Thomas HOFF , Graeme G. MACKAY
Abstract: A method may include controlling switching behavior of switches of a switch-mode power supply based on a desired physical quantity associated with the switch-mode power supply, wherein the desired physical quantity is based at least in part on a slope compensation signal, generating the slope compensation signal to have a compensation value of approximately zero as seen by a compensation control loop of the switch-mode power supply, and modifying the slope compensation signal on successive switching cycles of the switch-mode power supply to account for differences in an output of the compensation control loop and an average current of an inductor of the switch-mode power supply in at least one phase of a switching period of a switching cycle of the switch-mode power supply.
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公开(公告)号：US20240429729A1
公开(公告)日：2024-12-26
申请号：US18338090
申请日：2023-06-20
Inventor： Paulo Gustavo RAYMUNDO SILVA , Jason W. LAWRENCE , Mucahit KOZAK , Graeme G. MACKAY
IPC: H02J7/00
Abstract: A controller for generating a control parameter of a feedback system may include a proportional path comprising a first selector configured to select one of a plurality of proportional signals to generate a proportional path output, wherein each of the proportional signals is based on a respective one of a plurality of error signals, each of the plurality of error signals associated with a respective regulated physical quantity, an integral path comprising a second selector configured to select one of a plurality of integral signals as a second selector output, wherein each of the integral signals is based on a respective one of the plurality of error signals and a single integrator configured to accumulate successive samples of the second selector output to generate an integral path output, and combiner logic configured to combine the proportional path output and the integral path output to generate the control parameter.
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公开(公告)号：US20240372455A1
公开(公告)日：2024-11-07
申请号：US18312406
申请日：2023-05-04
Inventor： Hasnain AKRAM , Graeme G. MACKAY
IPC: H02M1/00
Abstract: A closed-loop feedback control system may include a first feedback control loop configured to regulate a first physical quantity, a second feedback control loop orthogonal to the first feedback control loop and configured to regulate a second physical quantity, and a correction block configured to apply a correction term to the first feedback control loop based on a parameter of the second feedback control loop.
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公开(公告)号：US20230179217A1
公开(公告)日：2023-06-08
申请号：US17987448
申请日：2022-11-15
Inventor： Paul WILSON , James T. DEAS , Mucahit KOZAK , Graeme G. MACKAY
CPC classification number: H03M1/1023 , H03M1/0609
Abstract: Coulomb counter circuitry operable in a first mode of operation and a second mode of operation, the coulomb counter circuitry comprising: first analog to digital converter (ADC) circuitry configured to generate a first ADC output signal indicative of a current through a load coupled to the coulomb counter circuitry; second analog to digital converter (ADC) circuitry; offset correction circuitry; and accumulator circuitry configured to generate a signal indicative of a cumulative amount of charge transferred to the load, wherein in the second mode of operation, the coulomb counter circuitry is operable to enable the second ADC circuitry and to generate an offset correction factor based at least in part on a second ADC output signal output by the second ADC circuitry, and wherein in subsequent operation of the coulomb counter circuitry in the first mode of operation, the offset correction circuitry applies the offset correction factor to the first ADC output signal.
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Patent Agency Ranking
公开(公告)号：US20230042883A1
公开(公告)日：2023-02-09
申请号：US17962870
申请日：2022-10-10
Inventor： Jason W. LAWRENCE , Graeme G. MACKAY , Sakkarapani BALAGOPAL
IPC: H02M3/158 , G01R19/165 , H03K5/24
Abstract: A method for controlling a current associated with a power converter may comprise controlling the current based on at least a peak current threshold level for the current and a valley current threshold level for the current, and further controlling the current based on a duration of time that the power converter spends in a switching state of the power converter.
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公开(公告)号：US20220037907A1
公开(公告)日：2022-02-03
申请号：US17130377
申请日：2020-12-22
Inventor： Graeme G. MACKAY , Ajit SHARMA , Jason W. LAWRENCE
Abstract: A power delivery system may include a power converter configured to electrically couple to a power source and further configured to supply electrical energy to one or more loads electrically coupled to an output of the power converter and control circuitry comprising a feedback loop configured to monitor a voltage derived from the power source and control a limit for a current supplied from the power source to the one or more loads based on the voltage derived from the power source.
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公开(公告)号：US20220037903A1
公开(公告)日：2022-02-03
申请号：US17237373
申请日：2021-04-22
Inventor： Graeme G. MACKAY , Ajit SHARMA , Jason W. LAWRENCE , Eric J. KING
Abstract: A system may include a power source, a power converter having an input coupled to the power source and an output for supplying electrical energy to a load, and a control circuit for controlling operation of the power converter. The control circuit may include a first feedback control subsystem configured to monitor an output voltage present at the output of the power converter and regulate the output voltage at or about a predetermined regulated voltage level in a normal mode of operation of the power converter and a second feedback control subsystem configured to monitor an input voltage present between the power source and the input of the power converter and responsive to the input voltage decreasing below a predetermined minimum voltage level, causing the power converter to operate in a protection mode of operation in order to maintain the input voltage at or about the predetermined minimum voltage level.
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公开(公告)号：US20210159798A1
公开(公告)日：2021-05-27
申请号：US17080030
申请日：2020-10-26
Inventor： Graeme G. MACKAY , Eric J. KING , Ajit SHARMA
IPC: H02M3/158 , G01R19/165
Abstract: A system may include a power converter configured to convert a source voltage from a power source to an output voltage at an output capacitor at an output of the power converter, a dual-mode power converter electrically coupled to the power converter, the dual-mode power converter having a plurality of switches and a power inductor, an energy storage element electrically coupled to the dual-mode power converter, and control circuity configured to, when the output voltage is below a threshold voltage magnitude, control the plurality of switches to operate the dual-mode power converter as a buck converter in order to transfer energy from the energy storage element to the output capacitor via an electrical current through the power inductor.
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公开(公告)号：US20230208303A1
公开(公告)日：2023-06-29
申请号：US18174106
申请日：2023-02-24
Inventor： Eric J. KING , Ajit SHARMA , Lingli ZHANG , Christian LARSEN , Graeme G. MACKAY
CPC classification number: H02M3/158 , H02M1/08 , H02M3/1584 , H02M1/008
Abstract: A system may include a power converter having a maximum allowable input power drawn from a power source, an energy storage element coupled to an output of the power converter at a top plate of the energy storage element, wherein the energy storage element is configured to store excess energy, and control circuitry configured to, when an input power of the power converter exceeds the maximum allowable input power, cause excess energy stored in the energy storage element to be consumed by circuitry coupled to the output of the power converter, and in order to maintain positive voltage headroom for the circuitry coupled to the output of the power converter, selectively couple a bottom plate of the energy storage element to the power source such that excess energy stored by the circuitry coupled to the output of the power converter is consumed from the energy storage device when the input power of the power converter exceeds the maximum allowable input power.
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