公开(公告)号：EP3210421A1

公开(公告)日：2017-08-30

申请号：EP15787791.1

申请日：2015-10-12

Applicant: Qualcomm Incorporated

Inventor： DUNCAN, Joseph ,  MEHTA, Srenik ,  GUPTA, Vishal ,  SUTTON, Todd

IPC: H04W52/02 ,  H02M3/158

CPC classification number: H02M3/158 ,  G05F1/59 ,  H02M3/157 ,  H02M2001/0032 ,  H04W52/0274 ,  Y02B70/16 ,  Y02D70/00 ,  Y02D70/142

Abstract: A low standby power DC-DC converter can be powered down during standby mode. The DC-DC converter can be periodically awakened between sleep cycles to check if the output voltage needs to be recharged (refreshed). The duration of the sleep cycles can be varied to accommodate for changing load conditions that would affect the output voltage.

Abstract translation: 低待机功率DC-DC转换器可在待机模式下关闭。 DC-DC转换器可以在睡眠周期之间周期性唤醒，以检查输出电压是否需要重新充电（刷新）。 睡眠周期的持续时间可以改变，以适应可能影响输出电压的变化负载条件。

公开(公告)号：EP3251203B1

公开(公告)日：2020-08-12

申请号：EP16703381.0

申请日：2016-01-08

Applicant: Qualcomm Incorporated

Inventor： YUNG, Chi-Fan ,  GUPTA, Vishal ,  DUNCAN, Joseph

IPC: H02M3/155 ,  H02M1/36 ,  H02M1/32 ,  G01R31/40

公开(公告)号：EP3275079A1

公开(公告)日：2018-01-31

申请号：EP16712157.3

申请日：2016-03-15

Applicant: Qualcomm Incorporated

Inventor： GUPTA, Vishal ,  YUNG, Chifan ,  DUNCAN, Joseph

IPC: H03K17/10 ,  H03F3/217

CPC classification number: H03K19/018507 ,  H03F3/2173 ,  H03F2203/30015 ,  H03F2203/30084 ,  H03F2203/30099 ,  H03F2203/30117 ,  H03F2203/30132 ,  H03K17/102

Abstract: Disclosed is a cascode configuration that moves the gate of the cascode substantially without delay relative to an output node by capacitively coupling the latter onto the cascode gates. The passive coupling eliminates the need for actively driving the gates of the cascode. In some embodiments, the only circuitry needed on the cascode gate may be a biasing circuit that limits the swing on the cascode gate between Vmax and 2×Vmax, where Vmax is a transistor device rating.

公开(公告)号：EP2981873A1

公开(公告)日：2016-02-10

申请号：EP14724901.5

申请日：2014-04-02

Applicant: Qualcomm Incorporated

Inventor： HOMCHAUDHURI, Sandip ,  DUNCAN, Joseph ,  ZHANG, Xiaoru ,  LEE, Meelan ,  JAYARAMAN, Arunkumar ,  LIN, Derrick, Chu ,  MEHTA, Srenik

IPC: G06F1/32 ,  H04W52/02

Abstract: Methods and apparatuses are described in which dynamic voltage and frequency scaling may be used to save power when processing packets in a wireless communications device. In some cases, inframe detection may allow the device to determine whether to transition from a first (e.g., lower) voltage level to a second (e.g., higher) voltage level to process one or more packets of a received frame. For some packet types the first voltage level may be maintained. In other cases, the device may determine a bandwidth to use from among multiple bandwidths supported by the device. The bandwidth may be determined based on channel conditions. A voltage level may be identified that corresponds to the determined bandwidth and a processing voltage may be scaled to the identified voltage level. The device may be configured to operate in wireless local area network (WLAN) and/or in a cellular network (e.g., LTE).

公开(公告)号：EP2965413A2

公开(公告)日：2016-01-13

申请号：EP14711649.5

申请日：2014-02-26

Applicant: Qualcomm Incorporated

Inventor： TUTEN, Charles Derrick ,  DUNCAN, Joseph ,  KOSKI, Marko H

IPC: H02M3/156

CPC classification number: H02M3/156

Abstract: Exemplary embodiments are related to generating an error correction voltage and/or a compensation voltage based upon pulse-width modulation information. A device may include a pulse-width modulator configured to receive a first input voltage and convey a modulated output voltage. The device may also include a filtering unit including at least one filter configured to receive the modulated output voltage, generate at least one of an error correction voltage and a compensation voltage, and convey a second input voltage to the pulse-width modulator based on at least one of the error correction voltage and a compensation voltage.