公开(公告)号：WO2013169457A2

公开(公告)日：2013-11-14

申请号：PCT/US2013/037128

申请日：2013-04-18

Applicant: APPLE INC.

Inventor： SMITH, Eric, G. ,  LUH, Louis ,  ATHAS, William, C.

IPC: H02M3/137

CPC classification number: H02M3/1584 ,  H02M2001/0032 ,  H02M2003/1586 ,  Y02B70/16

Abstract: Embodiments of a power supply are disclosed that include a first voltage converter having a first feedback controller and a first regulated output, and second voltage converter having a second feedback controller and a second regulated output electrically coupled to the first regulated output. The power limit of the first voltage converter is lower than the power limit of the second voltage converter, and a reference voltage for the first feedback controller is higher than the reference voltage for the second feedback controller.

Abstract translation: 公开了一种电源的实施例，其包括具有第一反馈控制器和第一调节输出的第一电压转换器，以及具有电耦合到第一调节输出的第二反馈控制器和第二调节输出的第二电压转换器。 第一电压转换器的功率限制低于第二电压转换器的功率极限，第一反馈控制器的参考电压高于第二反馈控制器的参考电压。

公开(公告)号：WO2014209490A1

公开(公告)日：2014-12-31

申请号：PCT/US2014/036012

申请日：2014-04-30

Applicant: APPLE INC.

Inventor： KNOTH, Matthias ,  KUMAR, Rohit ,  SMITH, Eric ,  LUH, Louis

IPC: H02J1/02

CPC classification number: G06F1/26 ,  H02J1/02 ,  H02J1/10 ,  H02J7/345 ,  Y10T307/527

Abstract: In some embodiments, a system may include at least one voltage controller. At least one of the voltage controllers may assess, during use, an occurrence of a predetermined condition. In some embodiments, the system may include an at least first capacitor. The at least first capacitor may be coupled to at least one of the voltage controllers such that at least one of the voltage controllers engages the at least first capacitor to supply additional current when the predetermined condition occurs. When the increase in current is no longer required the at least first capacitor may be disengaged. The at least first capacitor may be charged when disengaged until a predetermined capacity.

Abstract translation: 在一些实施例中，系统可以包括至少一个电压控制器。 至少一个电压控制器可以在使用期间评估预定条件的发生。 在一些实施例中，系统可以包括至少第一电容器。 至少第一电容器可以耦合到至少一个电压控制器，使得当预定条件发生时，至少一个电压控制器接合至少第一电容器以提供附加电流。 当电流的增加不再需要时，可以使至少第一电容器分离。 至少第一电容器可以在分离直到预定容量时被充电。

公开(公告)号：WO2014025485A2

公开(公告)日：2014-02-13

申请号：PCT/US2013/050127

申请日：2013-07-11

Applicant: APPLE INC.

Inventor： LUH, Louis ,  SMITH, Eric G.

IPC: H02M7/12

CPC classification number: H02M3/337 ,  H02M1/4208 ,  H02M3/156 ,  H02M3/335 ,  H02M7/10 ,  H02M7/2176 ,  H02M7/53871 ,  H02M2001/007 ,  Y02B70/126

Abstract: Embodiments of an adapter are disclosed that include a rectifier with an input and an output coupled to a step-down transformer with a primary coil and a secondary coil, wherein the primary coil is coupled to the output of the rectifier. A step-up converter is coupled to the secondary coil.

Abstract translation: 公开了适配器的实施例，其包括整流器，其具有与初级线圈和次级线圈耦合到降压变压器的输入和输出，其中初级线圈耦合到整流器的输出端。 升压转换器耦合到次级线圈。

公开(公告)号：WO2016053539A1

公开(公告)日：2016-04-07

申请号：PCT/US2015/047759

申请日：2015-08-31

Applicant: APPLE INC.

Inventor： WANG, Chaohao ,  LUH, Louis ,  QI, Jun ,  CHEN, Cheng ,  JIANG, Jun ,  SACCHETTO, Paolo ,  ALBRECHT, Marc

IPC: G09G3/20 ,  G09G3/36

CPC classification number: G06F1/32 ,  G09G5/003 ,  G09G2320/0247 ,  G09G2330/021 ,  G09G2340/0435 ,  G09G2360/16

Abstract: Systems and methods for operating a display by dynamically determining a refresh rate for the display. In certain implementations, a processor determines a number of pixels having medium grayscale levels from a histogram for the image. If the number does not exceed a threshold, the processor sets a refresh rate for the display to a first refresh rate. In certain implementations, if the number exceeds a threshold, the processor may set the refresh rate for the display to a second refresh rate. Moreover, the first refresh rate may be lower than the second threshold. In some implementations, the image may be analyzed by subdividing the image into blocks and determining a refresh rate based on grayscale levels or distributions in the blocks. Based on the analysis of the blocks, a corresponding refresh rate may be selected.

Abstract translation: 通过动态地确定显示器的刷新率来操作显示器的系统和方法。 在某些实现中，处理器根据图像的直方图确定具有中等灰度等级的像素数。 如果号码不超过阈值，则处理器将显示器的刷新率设置为第一刷新率。 在某些实现中，如果数量超过阈值，则处理器可以将显示器的刷新率设置为第二刷新率。 此外，第一刷新率可以低于第二阈值。 在一些实现中，可以通过将图像细分为块并且基于块中的灰度等级或分布来确定刷新率来分析图像。 基于块的分析，可以选择相应的刷新率。

公开(公告)号：WO2015188195A2

公开(公告)日：2015-12-10

申请号：PCT/US2015/034745

申请日：2015-06-08

Applicant: APPLE INC.

Inventor： LUH, Louis ,  ATHAS, William C. ,  SULLENS, Heather R.

IPC: H02J3/00

CPC classification number: H02J1/14 ,  G06F1/26 ,  G06F11/3058 ,  H02J3/00 ,  H02J7/0063 ,  H02J7/0065 ,  H02J2007/0067 ,  Y10T307/406

Abstract: The disclosed embodiments provide a system that operates a power supply. During operation, the system disposes a first switching mechanism between a first output of a first power converter and two or more loads. Next, the system obtains two or more error signals for the two or more loads, wherein each error signal from the two or more error signals represents a difference between a load voltage of a load from the two or more loads and a first reference voltage for the load from a first set of reference voltages for driving the two or more loads using the first power converter. The system then uses the first switching mechanism to couple the load with a largest error signal from the two or more error signals to the first output. The disclosed embodiments also provide a system that operates a power supply. During operation, the system obtains power states of two or more loads coupled to two or more power converters in the power supply. Next, the system generates one or more control signals for a set of switching mechanisms to configure a coupling of the two or more loads to the two or more power converters through the switching mechanisms based on the power states.

Abstract translation: 所公开的实施例提供了操作电源的系统。 在操作期间，系统在第一功率转换器的第一输出和两个或更多个负载之间配置第一切换机构。 接下来，系统获得用于两个或更多个负载的两个或更多个误差信号，其中来自两个或更多个误差信号的每个误差信号表示来自两个或更多个负载的负载的负载电压与第一参考电压之间的差， 来自用于使用第一功率转换器驱动两个或更多个负载的第一组参考电压的负载。 然后，系统使用第一切换机构将负载与来自两个或更多个误差信号的最大误差信号耦合到第一输出。 所公开的实施例还提供了操作电源的系统。 在操作期间，系统获得耦合到电源中的两个或更多个功率转换器的两个或更多个负载的功率状态。 接下来，系统为一组切换机构生成一个或多个控制信号，以通过基于功率状态的切换机构来配置两个或更多个负载与两个或更多个功率转换器的耦合。

公开(公告)号：EP4260134A1

公开(公告)日：2023-10-18

申请号：EP21840735.1

申请日：2021-12-03

Applicant: Apple Inc.

Inventor： GILL, Patrick R ,  LUH, Louis ,  SMITH, Eric G

IPC: G02C7/10 ,  G02F1/1362 ,  G02F1/29 ,  G02C7/08

公开(公告)号：EP2987216B1

公开(公告)日：2018-03-21

申请号：EP14728380.8

申请日：2014-04-30

Applicant: Apple Inc.

Inventor： KNOTH, Matthias ,  KUMAR, Rohit ,  SMITH, Eric ,  LUH, Louis

IPC: H02J1/02

CPC classification number: G06F1/26 ,  H02J1/02 ,  H02J1/10 ,  H02J7/345 ,  Y10T307/527

Abstract: In some embodiments, a system may include at least one voltage controller. At least one of the voltage controllers may assess, during use, an occurrence of a predetermined condition. In some embodiments, the system may include an at least first capacitor. The at least first capacitor may be coupled to at least one of the voltage controllers such that at least one of the voltage controllers engages the at least first capacitor to supply additional current when the predetermined condition occurs. When the increase in current is no longer required the at least first capacitor may be disengaged. The at least first capacitor may be charged when disengaged until a predetermined capacity.

公开(公告)号：EP2987216A1

公开(公告)日：2016-02-24

申请号：EP14728380.8

申请日：2014-04-30

Applicant: Apple Inc.

Inventor： KNOTH, Matthias ,  KUMAR, Rohit ,  SMITH, Eric ,  LUH, Louis

IPC: H02J1/02

CPC classification number: G06F1/26 ,  H02J1/02 ,  H02J1/10 ,  H02J7/345 ,  Y10T307/527

Abstract: In some embodiments, a system may include at least one voltage controller. At least one of the voltage controllers may assess, during use, an occurrence of a predetermined condition. In some embodiments, the system may include an at least first capacitor. The at least first capacitor may be coupled to at least one of the voltage controllers such that at least one of the voltage controllers engages the at least first capacitor to supply additional current when the predetermined condition occurs. When the increase in current is no longer required the at least first capacitor may be disengaged. The at least first capacitor may be charged when disengaged until a predetermined capacity.