公开(公告)号：US09990022B2

公开(公告)日：2018-06-05

申请号：US15199567

申请日：2016-06-30

Applicant: QUALCOMM Incorporated

Inventor： Mong Chit Wong ,  Nam Dang ,  Rajeev Jain ,  Sassan Shahrokhinia ,  Yu Huang ,  Lipeng Cao

IPC: G06F1/26 ,  G06F1/32

CPC classification number: G06F1/3234 ,  G06F1/263 ,  H01L23/50 ,  H02J1/08 ,  H02J1/108 ,  H02J9/061

Abstract: An integrated circuit (IC) is disclosed herein for adaptive power multiplexing with a power distribution network. In an example aspect, the integrated circuit includes a first power rail, a second power rail, and a load power rail. The integrated circuit also includes multiple power-multiplexer tiles and power-multiplexer control circuitry. The multiple power-multiplexer tiles are coupled in series in a chained arrangement and configured to jointly perform a power-multiplexing operation. Each power-multiplexer tile is configured to switch between coupling the load power rail to the first power rail and coupling the load power rail to the second power rail. The power-multiplexer control circuitry is configured to control a direction of current flow to prevent cross-conduction between the first power rail and the second power rail during the power-multiplexing operation.

公开(公告)号：US20180004276A1

公开(公告)日：2018-01-04

申请号：US15199567

申请日：2016-06-30

Applicant: QUALCOMM Incorporated

Inventor： Mong Chit Wong ,  Nam Dang ,  Rajeev Jain ,  Sassan Shahrokhinia ,  Yu Huang ,  Lipeng Cao

IPC: G06F1/32

CPC classification number: G06F1/3234 ,  G06F1/263 ,  H01L23/50 ,  H02J1/08 ,  H02J1/108 ,  H02J9/061

Abstract: An integrated circuit (IC) is disclosed herein for adaptive power multiplexing with a power distribution network. In an example aspect, the integrated circuit includes a first power rail, a second power rail, and a load power rail. The integrated circuit also includes multiple power-multiplexer tiles and power-multiplexer control circuitry. The multiple power-multiplexer tiles are coupled in series in a chained arrangement and configured to jointly perform a power-multiplexing operation. Each power-multiplexer tile is configured to switch between coupling the load power rail to the first power rail and coupling the load power rail to the second power rail. The power-multiplexer control circuitry is configured to control a direction of current flow to prevent cross-conduction between the first power rail and the second power rail during the power-multiplexing operation.

公开(公告)号：US20150301539A1

公开(公告)日：2015-10-22

申请号：US14254279

申请日：2014-04-16

Applicant: QUALCOMM Incorporated

Inventor： Nam Van Dang ,  Rajeev Jain ,  Terrence Brian Remple ,  Jingcheng Zhuang ,  Mong Chit Wong

IPC: G05F1/46

CPC classification number: G05F1/468 ,  G05F3/30

Abstract: A series of current repeaters with localized feedback is provided. Each current that precedes a subsequent current repeater in the series is configured to receive a feedback current from the subsequent current repeater and generate an error signal accordingly with a differential amplifier so as to reduce current repetition errors that would otherwise result from an offset voltage in the differential amplifier.

Abstract translation: 提供了一系列具有局部反馈的电流中继器。 在串联中的随后的当前中继器之前的每个电流被配置为从随后的当前中继器接收反馈电流，并且相应地使用差分放大器产生误差信号，以便减少否则由于偏置电压而产生的电流重复误差 差分放大器。

公开(公告)号：US20160266598A1

公开(公告)日：2016-09-15

申请号：US14643981

申请日：2015-03-10

Applicant: QUALCOMM Incorporated

Inventor： Mong Chit Wong ,  Nam Van Dang ,  Rajeev Jain ,  Bo-Ren Wang ,  Sassan Shahrokhinia

IPC: G05F3/26

CPC classification number: G05F3/267 ,  G05F3/30

Abstract: Systems and methods for producing reference voltages are disclosed. An example bandgap reference circuit includes a core bandgap module that produces a bias control for biasing the gate of a transistor to produce a proportional to absolute temperature current. The core bandgap module may use an operational amplifier that uses auto-calibration to reduce its input offset voltage. A trimming module uses the bias control to produce a proportional to absolute temperature current that is combined with a trim current and supplied to a resistor and diode to produce a trimmed bandgap voltage. The trimmed bandgap voltage is buffered to produce a reference voltage output. The trim current may be set based on a room temperature measurement of the reference voltage output.

Abstract translation: 公开了用于产生参考电压的系统和方法。 一个示例性带隙基准电路包括一个核心带隙模块，其产生用于偏置晶体管栅极以产生与绝对温度电流成比例的偏置控制。 核心带隙模块可以使用使用自动校准的运算放大器来减少其输入失调电压。 修整模块使用偏置控制来产生与绝缘温度电流成比例的结合微调电流并提供给电阻和二极管以产生修整的带隙电压。 修整的带隙电压被缓冲以产生参考电压输出。 可以基于参考电压输出的室温测量来设置微调电流。

公开(公告)号：US09176511B1

公开(公告)日：2015-11-03

申请号：US14254279

申请日：2014-04-16

Applicant: QUALCOMM Incorporated

Inventor： Nam Van Dang ,  Rajeev Jain ,  Terrence Brian Remple ,  Jingcheng Zhuang ,  Mong Chit Wong

IPC: G05F1/10 ,  G05F1/46

CPC classification number: G05F1/468 ,  G05F3/30

Abstract: A series of current repeaters with localized feedback is provided. Each current that precedes a subsequent current repeater in the series is configured to receive a feedback current from the subsequent current repeater and generate an error signal accordingly with a differential amplifier so as to reduce current repetition errors that would otherwise result from an offset voltage in the differential amplifier.

Abstract translation: 提供了一系列具有局部反馈的电流中继器。 在串联中的随后的当前中继器之前的每个电流被配置为从随后的当前中继器接收反馈电流，并且相应地使用差分放大器产生误差信号，以便减少否则由于偏置电压而产生的电流重复误差 差分放大器。