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1. 发明授权

US10720830B2 Fast transient load response device for switched-mode power supply 有权
公开(公告)号：US10720830B2
公开(公告)日：2020-07-21
申请号：US16394050
申请日：2019-04-25
申请人： NXP B.V.
发明人： Melaine Philip , Fabien Boitard
IPC分类号： H02M3/04 , H03M1/32 , H02M1/08 , H02M1/32 , H04B5/00 , H02M1/15 , H02M1/00
摘要： 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.

2. 发明授权

US11294412B2 Apparatuses and methods involving switching between dual inputs of power amplification circuitry 有权
公开(公告)号：US11294412B2
公开(公告)日：2022-04-05
申请号：US17091401
申请日：2020-11-06
申请人： NXP B.V.
发明人： Christian Vincent Sorace , Ludovic Oddoart , Fabien Boitard
IPC分类号： G05F1/575 , G05F1/445 , G05F1/46 , G05F1/565
摘要： An example apparatus includes power amplification circuitry and current-level switch circuitry. The power amplification circuitry has a first input port, a second input port, and field-effect transistor (FET) circuitry, the FET circuitry to operate in a saturation mode while drawing power provided at the first input port from a first power source. The current-level switch circuitry is to sense a change in a current-level used to maintain the FET circuitry in the saturation mode and, in response to the sensed change in the current-level, to cause the power amplification circuitry to draw power provided at the second input port from a second power source while maintaining the saturation mode of the FET circuitry.

3. 发明申请

US20210173422A1 APPARATUSES AND METHODS INVOLVING SWITCHING BETWEEN DUAL INPUTS OF POWER AMPLICATION CIRCUITRY 有权
公开(公告)号：US20210173422A1
公开(公告)日：2021-06-10
申请号：US17091401
申请日：2020-11-06
申请人： NXP B.V.
发明人： Christian Vincent SORACE , Ludovic Oddoart , Fabien Boitard
IPC分类号： G05F1/575 , G05F1/565 , G05F1/46 , G05F1/445
摘要： An example apparatus includes power amplification circuitry and current-level switch circuitry. The power amplification circuitry has a first input port, a second input port, and field-effect transistor (FET) circuitry, the FET circuitry to operate in a saturation mode while drawing power provided at the first input port from a first power source. The current-level switch circuitry is to sense a change in a current-level used to maintain the FET circuitry in the saturation mode and, in response to the sensed change in the current-level, to cause the power amplification circuitry to draw power provided at the second input port from a second power source while maintaining the saturation mode of the FET circuitry.

4. 发明授权

US11099619B2 Power supply management for a data storage device 有权
公开(公告)号：US11099619B2
公开(公告)日：2021-08-24
申请号：US16517227
申请日：2019-07-19
申请人： NXP B.V.
发明人： Fabien Boitard , Ludovic Oddoart
IPC分类号： G06F1/00 , G06F1/26 , H04B5/00
摘要： A chip includes a first pin coupled to a signal line and a controller to detect a state of the signal line using the first pin. The controller controls output of first power to the signal line through the first pin based on a first state of the signal line and prevents output of the first power to the signal line through the first pin based on a second state of the signal line. The signal line may be coupled to provide second power from a power source to a data storage device.

5. 发明授权

US11056972B2 Power converter and method of operating the same 有权
公开(公告)号：US11056972B2
公开(公告)日：2021-07-06
申请号：US16881785
申请日：2020-05-22
申请人： NXP B.V.
发明人： Melaine Philip , Fabien Boitard
IPC分类号： H02M3/07 , H02M3/157 , H02M1/14
摘要： 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.

6. 发明申请

US20220271642A1 CONTROL METHOD AND CONTROLLER FOR SIMO SWITCHING CONVERTERS 有权
公开(公告)号：US20220271642A1
公开(公告)日：2022-08-25
申请号：US17651689
申请日：2022-02-18
申请人： NXP B.V.
发明人： Christian Vincent Sorace , Nicolas Patrick Vantalon , Ludovic Oddoart , Fabien Boitard
IPC分类号： H02M1/00 , H02M3/158
摘要： 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.

7. 发明授权

US11223221B2 Power management 有权
公开(公告)号：US11223221B2
公开(公告)日：2022-01-11
申请号：US16897732
申请日：2020-06-10
申请人： NXP B.V.
发明人： Christian Vincent Sorace , Nicolas Patrick Vantalon , Fabien Boitard
IPC分类号： H02J7/00 , H02J7/34
摘要： 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.

8. 发明申请

US20200382002A1 POWER CONVERTER AND METHOD OF OPERATING THE SAME 审中-公开
公开(公告)号：US20200382002A1
公开(公告)日：2020-12-03
申请号：US16881785
申请日：2020-05-22
申请人： NXP B.V.
发明人： Melaine Philip , Fabien Boitard
IPC分类号： H02M3/157 , H02M1/14 , H02M3/07
摘要： 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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