-
公开(公告)号:US20190131931A1
公开(公告)日:2019-05-02
申请号:US16119115
申请日:2018-08-31
Applicant: NXP B.V.
Inventor: Maarten van Dommelen , Frédéric Chalet , Benno Krabbenborg
CPC classification number: H03F1/0205 , H03F1/0227 , H03F3/181 , H03F3/183 , H03F3/217 , H03F2200/03 , H03F2200/102 , H03F2200/321 , H03K5/133 , H03K2005/00241 , H04R3/00
Abstract: A method and operates for generating a boost control signal for a DC-DC-booster is described. An audio signal may be received comprising a plurality of audio sample values. The audio signal may be delayed for a delay time. A maximum-delayed-value of the audio sample values during the delay time may be determined. The boost control signal may be generated from the maximum of the non-delayed audio signal sample value and the maximum-delayed-value.
-
公开(公告)号:US09641081B2
公开(公告)日:2017-05-02
申请号:US14191231
申请日:2014-02-26
Applicant: NXP B.V.
Inventor: Benno Krabbenborg
CPC classification number: H02M3/1588 , H02M3/156 , H02M2001/0025 , H03F3/45179 , H03F2203/45674
Abstract: A boost converter for converting between an input voltage and an output voltage is disclosed. The boost converter includes an inductor connected to the input voltage a switching arrangement for controlling the switching of the inductor current to an output load at the output voltage and a controller for controlling the switching arrangement to provide duty cycle control. The duty cycle control switching takes place when the inductor current reaches a peak current level which varies over time with a peak current level function. The peak current level function includes the combination of a target peak value derived from a target average inductor current and a slope compensation function which periodically varies with a period corresponding to the converter switching period.
-
公开(公告)号:US20190131871A1
公开(公告)日:2019-05-02
申请号:US16144004
申请日:2018-09-27
Applicant: NXP B.V.
Inventor: Benno Krabbenborg
CPC classification number: H02M3/156 , G05F1/10 , H02M1/40 , H02M2001/0006 , H02M2001/0009 , H02M2001/0025 , H03F3/45071
Abstract: A circuit for a switched-mode-power-supply. The switched-mode-power-supply is configured to: receive a current-control-signal; and provide an output-voltage based on the current-control-signal. The circuit comprises a controller, a current-limiter and a clamp-circuit. The controller is configured to: generate a control-voltage based on the difference between: (i) a sense-voltage, which is representative of the output-voltage of the switched-mode-power-supply; and (ii) a reference-voltage; generate a target-current-control-signal based on the control-voltage, wherein the target-current-control-signal is configured to adjust the current through the switched-mode-power-supply in order to bring the sense-voltage closer to the reference-voltage. The current-limiter is configured to provide the current-control-signal as the target-current-control-signal limited to a max-current-control-value. The clamp-circuit is configured to set the control-voltage to a clamp-voltage-value when the current-limiter provides the current-control-signal having the limited value of the max-current-control-value.
-
公开(公告)号:US20140247029A1
公开(公告)日:2014-09-04
申请号:US14191231
申请日:2014-02-26
Applicant: NXP B.V.
Inventor: Benno Krabbenborg
IPC: H02M3/158
CPC classification number: H02M3/1588 , H02M3/156 , H02M2001/0025 , H03F3/45179 , H03F2203/45674
Abstract: A boost converter for converting between an input voltage and an output voltage is disclosed. The boost converter includes an inductor connected to the input voltage a switching arrangement for controlling the switching of the inductor current to an output load at the output voltage and a controller for controlling the switching arrangement to provide duty cycle control. The duty cycle control switching takes place when the inductor current reaches a peak current level which varies over time with a peak current level function. The peak current level function includes the combination of a target peak value derived from a target average inductor current and a slope compensation function which periodically varies with a period corresponding to the converter switching period.
Abstract translation: 公开了一种用于在输入电压和输出电压之间转换的升压转换器。 升压转换器包括连接到输入电压的电感器,用于控制电感器电流切换到输出电压处的输出负载的开关装置和用于控制开关装置以提供占空比控制的控制器。 当电感电流达到峰值电流水平时,占空比控制切换发生,峰值电流电平随峰值电流功能随时间而变化。 峰值电流电平功能包括从目标平均电感器电流导出的目标峰值和与对应于转换器切换周期的周期性周期性变化的斜率补偿功能的组合。
-
公开(公告)号:US10432087B2
公开(公告)日:2019-10-01
申请号:US16144004
申请日:2018-09-27
Applicant: NXP B.V.
Inventor: Benno Krabbenborg
Abstract: A circuit for a switched-mode-power-supply. The switched-mode-power-supply is configured to: receive a current-control-signal; and provide an output-voltage based on the current-control-signal. The circuit comprises a controller, a current-limiter and a clamp-circuit. The controller is configured to: generate a control-voltage based on the difference between: (i) a sense-voltage, which is representative of the output-voltage of the switched-mode-power-supply; and (ii) a reference-voltage; generate a target-current-control-signal based on the control-voltage, wherein the target-current-control-signal is configured to adjust the current through the switched-mode-power-supply in order to bring the sense-voltage closer to the reference-voltage. The current-limiter is configured to provide the current-control-signal as the target-current-control-signal limited to a max-current-control-value. The clamp-circuit is configured to set the control-voltage to a clamp-voltage-value when the current-limiter provides the current-control-signal having the limited value of the max-current-control-value.
-
公开(公告)号:US09041468B2
公开(公告)日:2015-05-26
申请号:US13847713
申请日:2013-03-20
Applicant: NXP B.V.
Inventor: Benno Krabbenborg , Marco Berkhout , Johan Somberg , Peter Van De Haar
CPC classification number: G05F5/00 , H02M3/158 , H02M2001/0019 , H02M2003/1566 , H03F3/2171
Abstract: A method of operating a switched-mode power supply (SMPS) for supplying power to a load circuit, which draws a supply current that varies with an input signal to the load circuit is disclosed. The method comprises monitoring the input signal and controlling the amount of accumulated energy transferred for consumption by the load circuit, in use, in accordance with the input signal.
Abstract translation: 公开了一种操作开关模式电源(SMPS)的方法,用于向负载电路供电,该负载电路吸取随负载电路的输入信号而变化的电源电流。 该方法包括监视输入信号并根据输入信号控制在使用中由负载电路传输消耗的累积能量的量。
-
公开(公告)号:US10454424B2
公开(公告)日:2019-10-22
申请号:US16119115
申请日:2018-08-31
Applicant: NXP B.V.
Inventor: Maarten van Dommelen , Frédéric Chalet , Benno Krabbenborg
Abstract: A method and operates for generating a boost control signal for a DC-DC-booster is described. An audio signal may be received comprising a plurality of audio sample values. The audio signal may be delayed for a delay time. A maximum-delayed-value of the audio sample values during the delay time may be determined. The boost control signal may be generated from the maximum of the non-delayed audio signal sample value and the maximum-delayed-value.
-
-
-
-
-
-