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公开(公告)号：US11811317B2
公开(公告)日：2023-11-07
申请号：US17303129
申请日：2021-05-20
Applicant: NXP B.V.
Inventor： Ravichandra Karadi , Matthias Rose , Hendrik Johannes Bergveld , Marcel Dijkstra
CPC classification number: H02M3/157 , H02M1/0025
Abstract: A controller for controlling a DC-DC converter in a discontinuous conduction mode (DCM) includes an output module configured to provide a switch control signal to the DC-DC converter having an on-time and a switching frequency. The controller includes an on-time-control-module configured to receive a first compensation signal based on the output voltage of the DC-DC converter; and set the on-time of the switch control signal based on the first compensation signal. The controller also includes a frequency-control-module configured to receive a second compensation signal, wherein the second compensation signal is based on the output voltage of the DC-DC converter, and regulate the second compensation signal to a target range by setting the switching frequency of the switch control signal to one of a plurality of pre-defined discrete switching frequencies.
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公开(公告)号：US11621625B2
公开(公告)日：2023-04-04
申请号：US17303127
申请日：2021-05-20
Applicant: NXP B.V.
Inventor： Ravichandra Karadi , Matthias Rose , Hendrik Johannes Bergveld , Marcel Dijkstra
Abstract: A burst-mode controller for a DC-DC converter includes an output module configured to provide a switch control signal to the DC-DC converter. The switch control signal includes a plurality of burst windows, each burst window corresponding to a period of a fixed-frequency burst clock and having a number of switching cycles. The burst-mode controller includes an on-time-control-module configured to receive a compensation signal based on the output voltage of the DC-DC converter, and set an on-time of the switching cycles of the switch control signal based on the compensation signal. The burst-mode controller also includes a burst-control-module configured to regulate the on-time of the switching cycles of the switch control signal by setting the number of switching cycles for each burst window of the switch control signal.
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公开(公告)号：US20210211055A1
公开(公告)日：2021-07-08
申请号：US16734999
申请日：2020-01-06
Applicant: NXP B.V.
Inventor： Jitendra Prabhakar Harshey , Hendrik Johannes Bergveld , Edevaldo Pereira da Silva Junior , Koteswararao Nannapaneni , Uday Kumar Sajja
IPC: H02M3/158
Abstract: A DC-DC converter operates in a burst mode having at least one charge cycle with a charging phase followed by a discharging phase. A charging phase is terminated when an inductor current flowing through an inductance connected to the DC-DC converter reaches a compensated peak-current threshold, wherein the compensated peak-current threshold compensates for charging-phase loop delay. A discharging phase is terminated when the inductor current reaches a compensated valley-current threshold, wherein the compensated valley-current threshold compensates for discharging-phase loop delay.
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公开(公告)号：US10784783B1
公开(公告)日：2020-09-22
申请号：US16737623
申请日：2020-01-08
Applicant: NXP B.V.
Inventor： Jitendra Prabhakar Harshey , Hendrik Johannes Bergveld , Olivier Trescases , Edevaldo Pereira da Silva Junior , Stefano Pietri , Oscar Igor Robles Palacios
Abstract: A DC-DC converter selectively operates in at least a first burst mode having at least one first-mode charge cycle with a first-mode charging phase followed by a first-mode discharging phase or a second burst mode having at least one second-mode charge cycle with a second-mode charging phase followed by a second-mode discharging phase. A first-mode charging phase is terminated when an inductor current flowing through the inductance reaches a first-mode peak-current threshold, and a first-mode discharging phase is terminated when the inductor current reaches a first-mode valley-current threshold. A second-mode charging phase is terminated when the inductor current reaches a second-mode peak-current threshold, wherein the second-mode peak-current threshold is different from the first-mode peak-current threshold, and the second-mode discharging phase is terminated when the inductor current reaches a second-mode valley-current threshold, wherein the second-mode valley-current threshold is different from the first-mode valley-current threshold.
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公开(公告)号：US12109897B2
公开(公告)日：2024-10-08
申请号：US18193721
申请日：2023-03-31
Applicant: NXP B.V.
Inventor： Alphons Litjes , Hendrik Johannes Bergveld , Alexander Vogt , Cristian Pavao Moreira
IPC: B60L3/04 , B60L3/00 , B60L58/10 , G01S13/931
CPC classification number: B60L3/0007 , B60L3/04 , B60L58/10 , B60L2260/50 , B60Y2306/01 , G01S13/931
Abstract: In an embodiment, there is provided a battery management method for a vehicle comprising a plurality of batteries. According to another embodiment there is a control unit for performing the battery management method. The battery management method comprising detecting an incoming hazard; predicting an impact of the incoming hazard from one or more sensors coupled to the vehicle; determining a course of action to be taken in response to the predicted impact; and controlling one or more batteries of the plurality of batteries according to the determined course of action.
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Patent Agency Ranking
公开(公告)号：US20210384826A1
公开(公告)日：2021-12-09
申请号：US17303129
申请日：2021-05-20
Applicant: NXP B.V.
Inventor： Ravichandra Karadi , Matthias Rose , Hendrik Johannes Bergveld , Marcel Dijkstra
Abstract: A controller for controlling a DC-DC converter in a discontinuous conduction mode (DCM) includes an output module configured to provide a switch control signal to the DC-DC converter having an on-time and a switching frequency. The controller includes an on-time-control-module configured to receive a first compensation signal based on the output voltage of the DC-DC converter; and set the on-time of the switch control signal based on the first compensation signal. The controller also includes and a frequency-control-module configured to receive a second compensation signal, wherein the second compensation signal is based on the output voltage of the DC-DC converter and regulate the second compensation signal to a target range by setting the switching frequency of the switch control signal to one of a plurality of pre-defined discrete switching frequencies.
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公开(公告)号：US11601123B1
公开(公告)日：2023-03-07
申请号：US17523798
申请日：2021-11-10
Applicant: NXP B.V.
Inventor： Shubham Ajaykumar Khandelwal , Henricus Cornelis Johannes Büthker , Hendrik Johannes Bergveld
IPC: H03K17/22
Abstract: Embodiments of power-on reset (POR) circuits are described. In one embodiment, a POR circuit includes a primary ladder circuit connected to a supply voltage and configured to generate a reference signal for a reset signal in response to the supply voltage and a secondary ladder circuit connected to the supply voltage and configured to bias the primary ladder circuit in response to the supply voltage.
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公开(公告)号：US20210384825A1
公开(公告)日：2021-12-09
申请号：US17303127
申请日：2021-05-20
Applicant: NXP B.V.
Inventor： Ravichandra Karadi , Matthias Rose , Hendrik Johannes Bergveld , Marcel Dijkstra
Abstract: A burst-mode controller for a DC-DC converter includes an output module configured to provide a switch control signal to the DC-DC converter. The switch control signal includes a plurality of burst windows, each burst window corresponding to a period of a fixed-frequency burst clock and having a number of switching cycles. The burst-mode controller includes an on-time-control-module configured to receive a compensation signal based on the output voltage of the DC-DC converter and set an on-time of the switching cycles of the switch control signal based on the compensation signal. The burst-mode controller also includes a burst-control-module configured to regulate the on-time of the switching cycles of the switch control signal by setting the number of switching cycles for each burst window of the switch control signal.
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公开(公告)号：US20170338667A1
公开(公告)日：2017-11-23
申请号：US15161989
申请日：2016-05-23
Applicant: NXP B.V.
Inventor： Koen Johan Frederik Loonen , Hendrik Johannes Bergveld
IPC: H02J7/00 , H01M10/0525 , H01M10/44
CPC classification number: H02J7/007 , H01M10/0525 , H01M10/44 , H01M10/443 , H01M10/446 , H01M10/448
Abstract: Disclosed is a method of charging a battery, including determining at a first time interval a current to be applied until a second time interval such that the current charges the battery so that an anode Li-ion surface concentration at the second time interval is kept smaller than or equal to a maximum Li-ion surface concentration of the anode, applying the current to the battery, and determining at the second time interval another current to be applied until a third time interval such that the another current charges the battery so that an anode Li-ion surface concentration at the third time interval is kept smaller than or equal to the maximum Li-ion surface concentration of the anode.
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公开(公告)号：US10720838B1
公开(公告)日：2020-07-21
申请号：US16431927
申请日：2019-06-05
Applicant: NXP B.V.
Inventor： Jitendra Prabhakar Harshey , Olivier Trescases , Edevaldo Pereira Da Silva Junior , Stefano Pietri , Jurgen Geerlings , Hendrik Johannes Bergveld
Abstract: Embodiments provide forced-burst voltage regulation for burst mode direct-current-to-direct-current (DC-DC) converters in integrated circuits. The DC-DC converter generates an output voltage and operates in a burst mode to raise the output voltage to a threshold voltage. A controller is coupled to the DC-DC converter. In operation, the DC-DC converter is configured to perform the burst mode based upon a low-voltage detection for the output voltage. The DC-DC converter is further configured to perform the burst mode when a force-burst command is asserted by the controller to the DC-DC converter regardless of a state for the low-voltage detection. For one embodiment, the force-burst command is asserted as a burst control signal from the controller to the DC-DC converter to generate a long quiet period for sensitive actions. For another embodiment, the force-burst command is asserted using enable and refresh control signals to facilitate low-power operation.
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