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公开(公告)号：US12126248B2
公开(公告)日：2024-10-22
申请号：US17651689
申请日：2022-02-18
Applicant: NXP B.V.
Abstract: There is described a method of controlling a single inductor multiple output, SIMO, switching converter, the method comprising (a) counting, for each output of the multiple outputs of the SIMO switching converter, a period of time during which an output voltage at the respective output is below a corresponding individual threshold value, (b) identifying that output among the multiple outputs of the SIMO switching converter for which the counted period of time is longest, and (c) connecting the identified output to the single inductor of the SIMO switching converter to supply current from the single inductor of the SIMO switching converter to the identified output. Furthermore, a corresponding controller is described.
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公开(公告)号：US20240223084A1
公开(公告)日：2024-07-04
申请号：US18526107
申请日：2023-12-01
Applicant: NXP B.V.
CPC classification number: H02M3/158 , H02M1/0022 , H02M1/0045
Abstract: In accordance with a first aspect of the present disclosure, a power supply circuit is provided, comprising: a first output node and a second output node; an inductor detection unit configured to detect whether an inductor is present at the first output node and to output a corresponding detection signal; a mode control unit configured to control an operating mode of the power supply circuit in dependence on said detection signal; wherein the inductor detection unit is configured to detect whether said inductor is present by pulling down the first output node, deriving a reference voltage from the second output node, and comparing a voltage level of the first output node with said reference voltage. In accordance with a second aspect of the present disclosure, a corresponding method of operating a power supply circuit is conceived.
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公开(公告)号：US11594954B2
公开(公告)日：2023-02-28
申请号：US17009848
申请日：2020-09-02
Applicant: NXP B.V.
Inventor： Christian Vincent Sorace , Nicolas Patrick Vantalon
Abstract: A method is provided for soft starting a single inductor multiple output (SIMO) power supply. The method includes selecting operation in a pulse width modulation (PWM) mode. A first pulse frequency modulation (PFM) mode is enabled to supply a first load with a first voltage and the power supply begins to ramp up the output voltage. After the output voltage has reached a desired value in the PFM mode, the PFM mode is disabled. Then, operation is enabled in the PWM mode. The SIMO power supply then supplies a current to one or more loads in the PWM mode.
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Patent Agency Ranking
公开(公告)号：US20220271642A1
公开(公告)日：2022-08-25
申请号：US17651689
申请日：2022-02-18
Applicant: NXP B.V.
Abstract: There is described a method of controlling a single inductor multiple output, SIMO, switching converter, the method comprising (a) counting, for each output of the multiple outputs of the SIMO switching converter, a period of time during which an output voltage at the respective output is below a corresponding individual threshold value, (b) identifying that output among the multiple outputs of the SIMO switching converter for which the counted period of time is longest, and (c) connecting the identified output to the single inductor of the SIMO switching converter to supply current from the single inductor of the SIMO switching converter to the identified output. Furthermore, a corresponding controller is described.
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公开(公告)号：US11223221B2
公开(公告)日：2022-01-11
申请号：US16897732
申请日：2020-06-10
Applicant: NXP B.V.
Inventor： Christian Vincent Sorace , Nicolas Patrick Vantalon , Fabien Boitard
Abstract: A power management circuit includes an electrical power input for receiving electrical power, a controller, a finite state machine circuit in communication with the controller and a first voltage regulator in communication with the controller and the electrical power input and having a first output connected to a first capacitor for storing electrical power and to first electrical circuitry. The controller is configured to cyclically enable the first voltage regulator to supply current to charge the first capacitor. The finite state machine circuit is configured to interact with the controller to control the duration of a first time period of a cycle over which the first voltage regulator supplies current to charge the first capacitor and to control the duration of a second time period of the cycle over which the first voltage regulator does not supply current to charge the first capacitor and during which electrical current is receivable by said first electrical circuitry from said first capacitor.
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公开(公告)号：US20230195151A1
公开(公告)日：2023-06-22
申请号：US18048163
申请日：2022-10-20
Applicant: NXP B.V.
Abstract: It is described a voltage regulator device (100), comprising:
i) a power device (150), configured to receive an input signal (151) and to produce a corresponding output signal (152);
ii) a comparator device (110), coupled via a feedback path (140) to the power device (150), and configured to receive the output signal (152) as a feedback signal (141), and to produce a compared feedback signal (112); and
iii) a digital modulation device (120), arranged between the comparator device (110) and the power device (150), and configured to digitally modulate the compared feedback signal (112), and to provide the digitally modulated signal (121) to the power device (150), wherein the digital modulation device (120) comprises:
iiia) a delta-sigma (122),
iiib) a quantizer (124), and
iiic) a feedforward path (128), configured to feedforward the compared feedback signal (112) beyond the delta-sigma (122).-
公开(公告)号：US20210091665A1
公开(公告)日：2021-03-25
申请号：US17009848
申请日：2020-09-02
Applicant: NXP B.V.
Inventor： Christian Vincent SORACE , Nicolas Patrick Vantalon
Abstract: A method is provided for soft starting a single inductor multiple output (SIMO) power supply. The method includes selecting operation in a pulse width modulation (PWM) mode. A first pulse frequency modulation (PFM) mode is enabled to supply a first load with a first voltage and the power supply begins to ramp up the output voltage. After the output voltage has reached a desired value in the PFM mode, the PFM mode is disabled. Then, operation is enabled in the PWM mode. The SIMO power supply then supplies a current to one or more loads in the PWM mode.
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公开(公告)号：US10796830B1
公开(公告)日：2020-10-06
申请号：US16514660
申请日：2019-07-17
Applicant: NXP B.V.
Inventor： Christian Vincent Sorace , Nicolas Patrick Vantalon
Abstract: A power controller, including power stages configured to receive input power and charge an inductor, the power stages including output power stages configured to output a first voltage and a second voltage, and feedback circuits to determine error signals of the first voltage and second voltage, a first loop configured to determine an amount of energy to be stored in the inductor using the error signals, and a second loop configured to determine a discharge of the inductor between the first voltage and the second voltage, wherein the second loop determines a moving average of at least one transition point between powering the first voltage and the second voltage.
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