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公开(公告)号：US20200382002A1
公开(公告)日：2020-12-03
申请号：US16881785
申请日：2020-05-22
Applicant: NXP B.V.
Inventor： Melaine Philip , Fabien Boitard
Abstract: In accordance with a first aspect of the present disclosure, a power converter is disclosed, comprising: an input configured to receive an input voltage; an output configured to provide an output voltage; a power switching block coupled between the input and the output; a controller configured to control the power switching block, wherein the controller is configured to open and close switches comprised in the power switching block, wherein the controller is further configured to control a resistance of the power switching block. In accordance with a second aspect of the present disclosure, a corresponding method of operating a power converter is conceived.
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公开(公告)号：US20180165560A1
公开(公告)日：2018-06-14
申请号：US15842871
申请日：2017-12-14
Applicant: NXP B.V.
Inventor： Melaine Philip , Olivier Susplugas
CPC classification number: G06K19/0705 , G06K19/0712 , H04B5/0031 , H04B5/0056 , H04B5/02
Abstract: A RF transceiver for RF communication with a further RF transceiver is described. The RF transceiver comprises a RF transmitter; a clock generator coupled to the RF transmitter, the clock generator comprising a crystal oscillator circuit including an amplifier, a distance monitor configured to monitor the distance between the RF transceiver and the further RF transceiver; a controller coupled to the distance monitor and the clock generator. The controller is configured to vary the crystal oscillator swing amplitude dependent on the distance between the RF transceiver and the further RF transceiver.
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公开(公告)号：US20170294836A1
公开(公告)日：2017-10-12
申请号：US15481459
申请日：2017-04-07
Applicant: NXP B.V.
Inventor： Melaine Philip
IPC: H02M3/07
CPC classification number: H02M3/07 , H02M1/44 , H02M3/073 , H02M2001/0025 , H02M2001/0032 , Y02B70/16
Abstract: One example discloses a switching capacitive power converter, SCPC, including: an energy storage element; a voltage reference controller, and configured to output an adjusted reference voltage based on a received fixed reference voltage; and a charge pumping circuit configured to operate the SCPC at a charge pumping frequency and configured to charge the energy storage element at the charge pumping frequency if an absolute value of the power converter's output voltage is below an absolute value of the adjusted reference voltage; wherein if the charge pumping frequency is within a predetermined frequency exclusion range, the voltage reference controller is configured to set the adjusted reference voltage to a value such that the charge pumping frequency is no longer within the predetermined frequency exclusion range.
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公开(公告)号：US10720830B2
公开(公告)日：2020-07-21
申请号：US16394050
申请日：2019-04-25
Applicant: NXP B.V.
Inventor： Melaine Philip , Fabien Boitard
Abstract: This specification discloses methods and systems for reducing negative undershoot during transient load response for a PWM (Pulse Width Modulation) boost power converter. In some embodiments, reduction of negative undershoot during transient load response is achieved by overriding the PWM duty cycle to a maximum duty cycle when VDDBOOST drops during load step. This maximum duty cycle (“max”) mode is triggered when VDDBOOST is within a hysteresis window. Setpoint for maximum duty cycle is versus DCDC converter output and input voltage. In some embodiments, a lookup table is implemented for determining the setpoint for maximum duty cycle.
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公开(公告)号：US10346732B2
公开(公告)日：2019-07-09
申请号：US15842871
申请日：2017-12-14
Applicant: NXP B.V.
Inventor： Melaine Philip , Olivier Susplugas
Abstract: A RF transceiver for RF communication with a further RF transceiver is described. The RF transceiver comprises a RF transmitter; a clock generator coupled to the RF transmitter, the clock generator comprising a crystal oscillator circuit including an amplifier, a distance monitor configured to monitor the distance between the RF transceiver and the further RF transceiver; a controller coupled to the distance monitor and the clock generator. The controller is configured to vary the crystal oscillator swing amplitude dependent on the distance between the RF transceiver and the further RF transceiver.
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Patent Agency Ranking
公开(公告)号：US10056827B2
公开(公告)日：2018-08-21
申请号：US15481459
申请日：2017-04-07
Applicant: NXP B.V.
Inventor： Melaine Philip
IPC: H02M3/07
CPC classification number: H02M3/07 , H02M1/44 , H02M3/073 , H02M2001/0025 , H02M2001/0032 , Y02B70/16
Abstract: One example discloses a switching capacitive power converter, SCPC, including: an energy storage element; a voltage reference controller, and configured to output an adjusted reference voltage based on a received fixed reference voltage; and a charge pumping circuit configured to operate the SCPC at a charge pumping frequency and configured to charge the energy storage element at the charge pumping frequency if an absolute value of the power converter's output voltage is below an absolute value of the adjusted reference voltage; wherein if the charge pumping frequency is within a predetermined frequency exclusion range, the voltage reference controller is configured to set the adjusted reference voltage to a value such that the charge pumping frequency is no longer within the predetermined frequency exclusion range.
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公开(公告)号：US11056972B2
公开(公告)日：2021-07-06
申请号：US16881785
申请日：2020-05-22
Applicant: NXP B.V.
Inventor： Melaine Philip , Fabien Boitard
Abstract: In accordance with a first aspect of the present disclosure, a power converter is disclosed, comprising: an input configured to receive an input voltage; an output configured to provide an output voltage; a power switching block coupled between the input and the output; a controller configured to control the power switching block, wherein the controller is configured to open and close switches comprised in the power switching block, wherein the controller is further configured to control a resistance of the power switching block. In accordance with a second aspect of the present disclosure, a corresponding method of operating a power converter is conceived.
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公开(公告)号：US20150162824A1
公开(公告)日：2015-06-11
申请号：US14565264
申请日：2014-12-09
Applicant: NXP B.V.
Inventor： Melaine Philip
Abstract: A DC-DC converter uses a switched capacitor arrangement. A filter capacitor is connected between one terminal of the capacitor arrangement and a fixed voltage line and a calibration arrangement is used for setting or enabling selection of the capacitance of the filter capacitor.In this way, a capacitance is added to a terminal of the switched capacitor arrangement. The capacitance value can be chosen or adjusted to keep the DC-DC converter current capability within specification limits.
Abstract translation: DC-DC转换器使用开关电容器布置。 滤波电容器连接在电容器装置的一个端子和固定电压线之间，并且校准装置用于设置或使能选择滤波电容器的电容。 以这种方式，电容被添加到开关电容器装置的端子。 可以选择或调整电容值，以将DC-DC转换器的电流能力保持在规定的限度内。
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公开(公告)号：US09425685B2
公开(公告)日：2016-08-23
申请号：US14565264
申请日：2014-12-09
Applicant: NXP B.V.
Inventor： Melaine Philip
Abstract: A DC-DC converter uses a switched capacitor arrangement. A filter capacitor is connected between one terminal of the capacitor arrangement and a fixed voltage line and a calibration arrangement is used for setting or enabling selection of the capacitance of the filter capacitor.In this way, a capacitance is added to a terminal of the switched capacitor arrangement. The capacitance value can be chosen or adjusted to keep the DC-DC converter current capability within specification limits.
Abstract translation: DC-DC转换器使用开关电容器布置。 滤波电容器连接在电容器装置的一个端子和固定电压线之间，并且校准装置用于设置或使能选择滤波电容器的电容。 以这种方式，电容被添加到开关电容器装置的端子。 可以选择或调整电容值，以将DC-DC转换器的电流能力保持在规定的限度内。
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公开(公告)号：US09419516B2
公开(公告)日：2016-08-16
申请号：US14565375
申请日：2014-12-09
Applicant: NXP B.V.
Inventor： Melaine Philip
CPC classification number: H02M3/07 , H02M1/44 , H02M3/158 , H02M2001/0041 , H04B1/40
Abstract: A DC-DC converter comprises a capacitor arrangement and a switching arrangement for controlling coupling of the capacitor arrangement to a converter input during a loading phase and to a converter output during a storing phase. The converter cycles between charge pumping stages and charge holding phases, giving rise to a converter switching frequency. A variable output load is controlled thereby to maintain a constant converter switching frequency.
Abstract translation: DC-DC转换器包括电容器布置和用于在加载阶段期间控制电容器布置与转换器输入的耦合的开关装置，以及在存储阶段期间转换器输出。 转换器在电荷泵送阶段和电荷保持阶段之间循环，产生转换器开关频率。 控制可变输出负载，从而保持恒定的转换器开关频率。
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