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公开(公告)号：US20240128866A1
公开(公告)日：2024-04-18
申请号：US18047053
申请日：2022-10-17
Applicant: NXP B.V.
CPC classification number: H02M3/156 , H02M1/0025
Abstract: One example discloses a voltage converter, including: a power stage configured to generate an output voltage (Vo) and an output current (Jo) based on a switching frequency (fs); a primary control loop configured to vary the switching frequency (fs) in response to an on-time value code (Ton_code) and/or a peak output current code (iLpeak_code); and a secondary control loop configured to generate the Ton_code and/or the iLpeak_code.
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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：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：US20210036603A1
公开(公告)日：2021-02-04
申请号：US16527693
申请日：2019-07-31
Applicant: NXP B.V.
Inventor： Ravichandra Karadi
IPC: H02M3/07
Abstract: A method for multi-phase high conversion ratio Switched Capacitor Power Conversion includes sequentially forming one of four subcircuits during a respective timing phase, wherein each subcircuit comprises at most three capacitors. Conversion between an input voltage of an input and an output voltage of an output occurs by sequentially connecting for each respective timing phase, one of the input, the output, a ground, a top plate of a first one of the three capacitors and a bottom plate of the first one of the three capacitors to one of a top plate of a second one of the three capacitors and a bottom plate of the second one of the three capacitors.
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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：US10345838B1
公开(公告)日：2019-07-09
申请号：US16019129
申请日：2018-06-26
Applicant: NXP B.V.
Inventor： Ravichandra Karadi , Arnoud Pieter van der Wel
Abstract: An example embodiment is directed to a voltage regulation circuit. The voltage regulation circuit comprises a first control loop and a second control loop that are separately activatable. The first control loop regulates an output current provided to an output terminal, and the second control loop regulates an output voltage provided to the output terminal. The voltage regulation circuit further includes a mode switching circuit that switches operation between the first and the second control loops by separately activating one of the first and second control loops and deactivating the other in response to a fault condition at the output terminal at which a regulated load is connectable.
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公开(公告)号：US20150069928A1
公开(公告)日：2015-03-12
申请号：US14455756
申请日：2014-08-08
Applicant: NXP B.V.
Inventor： Ravichandra Karadi , Gerard Villar Pique
CPC classification number: H02M3/07 , H05B33/0896
Abstract: A switched capacitor power converter comprising a set of at least two capacitors; an input for receiving an input voltage an output for outputting an output voltage different to the input voltage, a plurality of switches configured to arrange the set of capacitors into a plurality of different subcircuit arrangements between the input and output for converting the input voltage to the output voltage; wherein the set of capacitors is configured to adopt a first subcircuit arrangement in which the set is connected to the input, a second subcircuit arrangement different to the first subcircuit arrangement and a third subcircuit arrangement, different to the first and second arrangements, in which the set is connected to the output, the subcircuit arrangements configured such that each of the capacitors in the set acts as a floating capacitor.
Abstract translation: 一种开关电容器功率转换器，包括一组至少两个电容器; 用于接收输入电压的输入端，用于输出与所述输入电压不同的输出电压的输出;多个开关，被配置为将所述电容器组布置在所述输入和输出之间的多个不同的子电路布置中，用于将所述输入电压转换为 输出电压; 其中所述电容器组被配置为采用其中所述组连接到所述输入端的第一子电路布置，与所述第一子电路布置不同的第二子电路布置和与所述第一和第二布置不同的第三子电路布置，其中， 设置连接到输出，配置电路布置使得集合中的每个电容器充当浮动电容器。
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公开(公告)号：US10958161B2
公开(公告)日：2021-03-23
申请号：US16527693
申请日：2019-07-31
Applicant: NXP B.V.
Inventor： Ravichandra Karadi
IPC: H02M3/07
Abstract: A method for multi-phase high conversion ratio Switched Capacitor Power Conversion includes sequentially forming one of four subcircuits during a respective timing phase, wherein each subcircuit comprises at most three capacitors. Conversion between an input voltage of an input and an output voltage of an output occurs by sequentially connecting for each respective timing phase, one of the input, the output, a ground, a top plate of a first one of the three capacitors and a bottom plate of the first one of the three capacitors to one of a top plate of a second one of the three capacitors and a bottom plate of the second one of the three capacitors.
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公开(公告)号：US09570976B2
公开(公告)日：2017-02-14
申请号：US14455756
申请日：2014-08-08
Applicant: NXP B.V.
Inventor： Ravichandra Karadi , Gerard Villar Pique
CPC classification number: H02M3/07 , H05B33/0896
Abstract: A switched capacitor power converter comprising a set of at least two capacitors; an input for receiving an input voltage an output for outputting an output voltage different to the input voltage, a plurality of switches configured to arrange the set of capacitors into a plurality of different subcircuit arrangements between the input and output for converting the input voltage to the output voltage; wherein the set of capacitors is configured to adopt a first subcircuit arrangement in which the set is connected to the input, a second subcircuit arrangement different to the first subcircuit arrangement and a third subcircuit arrangement, different to the first and second arrangements, in which the set is connected to the output, the subcircuit arrangements configured such that each of the capacitors in the set acts as a floating capacitor.
Abstract translation: 一种开关电容器功率转换器，包括一组至少两个电容器; 用于接收输入电压的输入端，用于输出与所述输入电压不同的输出电压的输出;多个开关，被配置为将所述电容器组布置在所述输入和输出之间的多个不同的子电路布置中，用于将所述输入电压转换为 输出电压; 其中所述电容器组被配置为采用其中所述组连接到所述输入端的第一子电路布置，与所述第一子电路布置不同的第二子电路布置和与所述第一和第二布置不同的第三子电路布置，其中， 设置连接到输出，配置电路布置使得集合中的每个电容器充当浮动电容器。
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