公开(公告)号：US09236752B2

公开(公告)日：2016-01-12

申请号：US13804666

申请日：2013-03-14

Applicant: QUALCOMM Incorporated

Inventor： Nihit Bajaj ,  Cheong Kun ,  Baiying Yu ,  Hua Guan

IPC: H02J7/04 ,  H02J7/00

CPC classification number: H02J7/0052 ,  H02J7/0031 ,  H02J7/0034 ,  H02J2007/0037 ,  Y10T307/625

Abstract: Disclosed is battery charging circuit having a first detection circuit and a second detection circuit for detecting when to terminate an activated voltage collapse protection operation. The first detection circuit may be an analog design and the second detection circuit may include digital circuitry.

Abstract translation: 公开了具有第一检测电路和第二检测电路的电池充电电路，用于检测何时终止激活的电压崩溃保护操作。 第一检测电路可以是模拟设计，第二检测电路可以包括数字电路。

公开(公告)号：US09203411B2

公开(公告)日：2015-12-01

申请号：US13649983

申请日：2012-10-11

Applicant: QUALCOMM Incorporated

Inventor： Baiying Yu

IPC: G06F1/04 ,  H03K19/0185 ,  G06F1/00 ,  G06F1/06 ,  G06F1/26 ,  G06F1/32

CPC classification number: H03K19/0185 ,  G06F1/00 ,  G06F1/04 ,  G06F1/06 ,  G06F1/26 ,  G06F1/3203

Abstract: The described apparatus and methods may include a first shifting stage configured to receive a signal having an upper power rail at a first voltage level and a lower power rail at a second voltage level, the first shifting stage configured to shift the upper power rail from the first voltage level to a third voltage level while maintaining the lower power rail at the second voltage level. The apparatus and methods may also include a second shifting stage coupled to the first shifting stage and configured to shift the lower power rail from the second voltage level to a fourth voltage level while maintaining the upper power rail at the third voltage level, the second shifting stage further configured to transmit the signal having the upper power rail at the third voltage level and the lower power rail at the fourth voltage level.

Abstract translation: 所描述的装置和方法可以包括：第一变速级，其被配置为接收具有第一电压电平的上电力轨的信号和处于第二电压电平的下电力轨，第一变速级被配置为将上电力轨从 将第一电压电平降低到第三电压电平，同时将下电力轨道保持在第二电压电平。 该装置和方法还可以包括耦合到第一变速级的第二变速级，并且被配置为将下电力轨从第二电压电平移位到第四电压电平，同时将上电力轨保持在第三电压电平，第二变速 级进一步被配置为将具有第三电压电平的上电力轨的信号和在第四电压电平的下电力轨传送。

公开(公告)号：US20140070618A1

公开(公告)日：2014-03-13

申请号：US13804666

申请日：2013-03-14

Applicant: QUALCOMM INCORPORATED

Inventor： Nihit Bajaj ,  Cheong Kun ,  Baiying Yu ,  Hua Guan

IPC: H02J7/00

CPC classification number: H02J7/0052 ,  H02J7/0031 ,  H02J7/0034 ,  H02J2007/0037 ,  Y10T307/625

Abstract: Disclosed is battery charging circuit having a first detection circuit and a second detection circuit for detecting when to terminate an activated voltage collapse protection operation. The first detection circuit may be an analog design and the second detection circuit may include digital circuitry.

Abstract translation: 公开了具有第一检测电路和第二检测电路的电池充电电路，用于检测何时终止激活的电压崩溃保护操作。 第一检测电路可以是模拟设计，第二检测电路可以包括数字电路。

公开(公告)号：US20140210482A1

公开(公告)日：2014-07-31

申请号：US13752314

申请日：2013-01-28

Applicant: QUALCOMM INCORPORATED

Inventor： Baiying Yu ,  Brett C. Walker

IPC: G01R31/36

CPC classification number: G01R31/3835 ,  G01R19/0084 ,  H01M10/48 ,  H03F3/005 ,  H03F2200/261 ,  H03F2200/375 ,  H03F2200/411

Abstract: A method and apparatus that reduce common mode variations experienced by a voltage sensing component. A measurement component such as a BATFET or an external sensing resistor, receives, at its source, a voltage from the top of a battery having a voltage VPH_PWR. A voltage sensing component, such as an ADC, is powered by the voltage from the battery. A power referenced component, such as a power referenced LDO, tracks the voltage from the battery and outputs the tracked voltage minus a predetermined voltage amount to a negative side of the voltage sensing component.

Abstract translation: 一种降低电压感测部件所经受的共模变化的方法和装置。 诸如BATFET或外部检测电阻器的测量部件在其源极处接收来自具有电压VPH_PWR的电池的顶部的电压。 诸如ADC的电压感测部件由电池的电压供电。 诸如功率参考LDO的功率参考分量跟踪来自电池的电压，并将跟踪的电压减去预定电压量输出到电压感测组件的负侧。

公开(公告)号：US20140108826A1

公开(公告)日：2014-04-17

申请号：US13649983

申请日：2012-10-11

Applicant: QUALCOMM INCORPORATED

Inventor： Baiying Yu

IPC: H03L5/00 ,  G06F1/26

CPC classification number: H03K19/0185 ,  G06F1/00 ,  G06F1/04 ,  G06F1/06 ,  G06F1/26 ,  G06F1/3203

Abstract: The described apparatus and methods may include a first shifting stage configured to receive a signal having an upper power rail at a first voltage level and a lower power rail at a second voltage level, the first shifting stage configured to shift the upper power rail from the first voltage level to a third voltage level while maintaining the lower power rail at the second voltage level. The apparatus and methods may also include a second shifting stage coupled to the first shifting stage and configured to shift the lower power rail from the second voltage level to a fourth voltage level while maintaining the upper power rail at the third voltage level, the second shifting stage further configured to transmit the signal having the upper power rail at the third voltage level and the lower power rail at the fourth voltage level.

Abstract translation: 所描述的装置和方法可以包括：第一变速级，其被配置为接收具有第一电压电平的上电力轨的信号和处于第二电压电平的下电力轨，第一变速级被配置为将上电力轨从 将第一电压电平降低到第三电压电平，同时将下电力轨道保持在第二电压电平。 该装置和方法还可以包括耦合到第一变速级的第二变速级，并且被配置为将下电力轨从第二电压电平移位到第四电压电平，同时将上电力轨保持在第三电压电平，第二变速 级进一步被配置为将具有第三电压电平的上电力轨的信号和在第四电压电平的下电力轨传送。