公开(公告)号：US20170070141A1

公开(公告)日：2017-03-09

申请号：US14845809

申请日：2015-09-04

Applicant: QUALCOMM Incorporated

Inventor： Farsheed Mahmoudi ,  James Thomas Doyle ,  Amirali Shayan

IPC: H02M3/157

CPC classification number: H02M3/157 ,  H02M1/36 ,  H02M3/156 ,  H02M3/33507 ,  H02M2001/0003 ,  H02M2001/0025 ,  H02M2001/0035 ,  Y02B70/16

Abstract: A switch-mode power supply is provided that includes a comparator for producing a pulse-width modulated (PWM) controller clock signal for controlling a power switch in the switch-mode power supply. The switch-mode power supply is configured to superimpose a DC-free version of a ramp voltage with an error voltage to produce a combined voltage. The comparator compares the combined voltage to a reference voltage to produce the PWM controller clock signal.

Abstract translation: 提供了一种开关电源，其包括用于产生用于控制开关模式电源中的电源开关的脉宽调制（PWM）控制器时钟信号的比较器。 开关模式电源被配置为叠加具有误差电压的无DC版本的斜坡电压以产生组合电压。 比较器将组合电压与参考电压进行比较，以产生PWM控制器时钟信号。

公开(公告)号：US20130285696A1

公开(公告)日：2013-10-31

申请号：US13928424

申请日：2013-06-27

Applicant: QUALCOMM Incorporated

Inventor： Lew Chua-Eoan ,  Boris Andreev ,  Yuancheng Christopher Pan ,  Amirali Shayan ,  Xiaohua Kong ,  Mikhail Popovich ,  Mauricio Calle ,  IK-Joon Chang

IPC: G01R31/317

CPC classification number: G01R31/31721 ,  G01R29/26

Abstract: An on-chip sensor measures dynamic power supply noise, such as voltage droop, on a semiconductor chip. In-situ logic is employed, which is sensitive to noise present on the power supply of functional logic of the chip. Exemplary functional logic includes a microprocessor, adder, and/or other functional logic of the chip. The in-situ logic performs some operation, and the amount of time required for performing that operation (i.e., the operational delay) is sensitive to noise present on the power supply. Thus, by evaluating the operational delay of the in-situ logic, the amount of noise present on the power supply can be measured.

Abstract translation: 片上传感器测量半导体芯片上的动态电源噪声，如电压下降。 采用原位逻辑，对芯片功能逻辑电源上存在的噪声敏感。 示例性功能逻辑包括芯片的微处理器，加法器和/或其他功能逻辑。 原位逻辑执行一些操作，并且执行该操作所需的时间量（即，操作延迟）对电源上存在的噪声敏感。 因此，通过评估原位逻辑的操作延迟，可以测量电源上存在的噪声量。

公开(公告)号：US09641073B2

公开(公告)日：2017-05-02

申请号：US14845809

申请日：2015-09-04

Applicant: QUALCOMM Incorporated

Inventor： Farsheed Mahmoudi ,  James Thomas Doyle ,  Amirali Shayan

IPC: H02M3/157 ,  H02M1/00

CPC classification number: H02M3/157 ,  H02M1/36 ,  H02M3/156 ,  H02M3/33507 ,  H02M2001/0003 ,  H02M2001/0025 ,  H02M2001/0035 ,  Y02B70/16

Abstract: A switch-mode power supply is provided that includes a comparator for producing a pulse-width modulated (PWM) controller clock signal for controlling a power switch in the switch-mode power supply. The switch-mode power supply is configured to superimpose a DC-free version of a ramp voltage with an error voltage to produce a combined voltage. The comparator compares the combined voltage to a reference voltage to produce the PWM controller clock signal.