公开(公告)号：US09673701B2

公开(公告)日：2017-06-06

申请号：US15050152

申请日：2016-02-22

Applicant: Apple Inc.

Inventor： Behzad Mohtashemi ,  Asif Hussain ,  Manisha P. Pandya ,  Mohammad J. Navabi-Shirazi ,  Nileshbhai J. Shah

IPC: H02M3/156

CPC classification number: H02M3/156 ,  H02M2003/1566

Abstract: A power conversion circuit, such as a buck converter/regulator, includes a feedback loop operatively coupling the output voltage to the controller for the switching mechanism. The feedback loop includes an analog error amplifier that sources current to the controller when the output voltage falls below a predetermined reference voltage and sinks current from the controller when the output voltage rises above a predetermined reference voltage. The feedback loop further includes at least one of a sinking boost circuit that sinks additional current from the controller when the output voltage falls below a low voltage threshold or a sourcing boost circuit that sources additional current to the controller when the output voltage rises above a high voltage threshold. The boost circuits can include analog amplifiers, digital comparators, or a combination thereof.

公开(公告)号：US20160344193A1

公开(公告)日：2016-11-24

申请号：US15161420

申请日：2016-05-23

Applicant: Apple Inc.

Inventor： Kisun Lee ,  Manisha P. Pandya ,  Shimon Elkayam

IPC: H02J3/38 ,  G06F1/26

CPC classification number: H02J3/385 ,  G06F1/263 ,  G06F1/266 ,  Y10T307/696

Abstract: The disclosed embodiments provide a power management system that supplies power to components in an electronic device. The power management system includes a system microcontroller (SMC) and a charger. During operation, the power management system accepts power from at least one of a power adapter and a solar panel. Next, the power management system supplies the power to components in the electronic device without using a converter circuit between the solar panel and the power management system.

公开(公告)号：US20160091940A1

公开(公告)日：2016-03-31

申请号：US14831682

申请日：2015-08-20

Applicant: Apple Inc.

Inventor： InHwan Oh ,  Marco Soldano ,  Nicholas A. Sims ,  Manisha P. Pandya ,  Bogdan T. Bucheru

IPC: G06F1/26 ,  H02J7/00 ,  H01R13/66

CPC classification number: G06F1/26

Abstract: An electronic device has an I/O port, a bus connector and a transistor that is connected between the I/O port and a communications contact of the bus connector. A control circuit is connected to the transistor to maintain a gate voltage of the transistor independent of power supply voltage on a power supply contact of the connector. Other embodiments are also described and claimed.

Abstract translation: 电子设备具有连接在I / O端口和总线连接器的通信接点之间的I / O端口，总线连接器和晶体管。 控制电路连接到晶体管以保持晶体管的栅极电压，而不依赖于连接器的电源触点上的电源电压。 还描述和要求保护其他实施例。

公开(公告)号：US20140176352A1

公开(公告)日：2014-06-26

申请号：US14029534

申请日：2013-09-17

Applicant: APPLE INC.

Inventor： Asif Hussain ,  Mohammad J. Navabi-Shirazi ,  Jingdong Chen ,  Manisha P. Pandya

IPC: H01H13/83

CPC classification number: H01H13/83 ,  G06F3/0202

Abstract: Systems, devices, and methods for a shared matrix of shared row pins and/or column pins between a first array of keys and a second array of lights of a keyboard. A keyboard controller addresses the first array of keys and the second array of lights during a scanning period using the shared row pins and/or column pins. Each key is backlit by one or more lights of the second array of lights that may be individually controlled. The keyboard controller may drive the desired lights of a respective row while detecting key presses of the same row during the row interval using the shared row pins and/or column pins. In some embodiments, the keyboard controller may drive the desired lights of a row during driving interval of the row interval, and scan the keys of the row separately during a sensing interval of the row interval.

Abstract translation: 用于共享行引脚和/或列引脚的共享矩阵在键的第一阵列与键盘的第二阵列之间的系统，设备和方法。 键盘控制器在扫描周期期间使用共享行引脚和/或列引脚来寻址第一阵列的键和第二阵列的光。 每个键都可以由可以单独控制的第二阵列灯的一个或多个灯背光。 键盘控制器可以在使用共享的行引脚和/或列引脚的行间隔期间检测同一行的按键时驱动相应行的期望的光。 在一些实施例中，键盘控制器可以在行间隔的驱动间隔期间驱动行的期望光，并且在行间隔的感测间隔期间单独扫描行的键。