公开(公告)号：US20190044481A1

公开(公告)日：2019-02-07

申请号：US15960191

申请日：2018-04-23

Applicant: QUALCOMM Incorporated

Inventor： Antonino SCUDERI ,  Thomas MARRA

IPC: H03F1/02 ,  H03F3/21 ,  H03F3/19 ,  H03F1/26

Abstract: A power supply to power amplifier (PA) distribution network may include a first power supply. The PA distribution network may further include at least one power amplifier. The power amplifier may be coupled to the first power supply. The power amplifier may include a driver stage and a power stage. The power amplifier may be coupled to the first power supply via a first switch.

公开(公告)号：US20180034417A1

公开(公告)日：2018-02-01

申请号：US15644443

申请日：2017-07-07

Applicant: QUALCOMM Incorporated

Inventor： Joseph DUNCAN ,  Jongrit LERDWORATAWEE ,  Song SHI ,  Thomas MARRA

IPC: H03F1/02 ,  H03F3/19 ,  H02M3/156 ,  G05F1/46 ,  H03F3/21 ,  H02M1/08

CPC classification number: H03F1/0216 ,  G05F1/461 ,  H02M1/08 ,  H02M3/156 ,  H02M2001/0045 ,  H03F1/0222 ,  H03F3/19 ,  H03F3/21 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/294 ,  H03F2200/432 ,  H03F2200/451 ,  H03F2200/462 ,  H03F2200/78 ,  H04W88/02 ,  H04W88/08

Abstract: Certain aspects of the present disclosure provide methods and apparatus for adjusting voltage regulators of a power supply, such as an envelope tracking power supply. Certain aspects provide a power supply. The power supply may include a first voltage regulator having an output coupled to a voltage supply node of an amplifier. The power supply may further include a second voltage regulator having an output coupled to the voltage supply node of the amplifier. The power supply may further include a controller for adjusting a ratio of an average current supplied by the first voltage regulator to an average current supplied by the second voltage regulator to the voltage supply node of the amplifier based on an output voltage supplied to the voltage supply node of the amplifier by the first voltage regulator and the second voltage regulator.

公开(公告)号：US20180034415A1

公开(公告)日：2018-02-01

申请号：US15643124

申请日：2017-07-06

Applicant: QUALCOMM Incorporated

Inventor： Zhiqing ZHANG ,  Chi Fan YUNG ,  Joseph DUNCAN ,  Jun HUA ,  Song SHI ,  Thomas MARRA

IPC: H03F1/02 ,  H03F3/213 ,  H02M3/155 ,  H03F3/195

CPC classification number: H03F1/0216 ,  H02M3/155 ,  H03F1/0227 ,  H03F3/195 ,  H03F3/213 ,  H03F2200/102 ,  H03F2200/294 ,  H03F2200/451 ,  H03F2200/504 ,  H03F2200/511 ,  H04B2001/0408

Abstract: Certain aspects of the present disclosure provide methods and apparatus for generating an envelope tracking power supply voltage. For example, certain aspects of the present disclosure provide an envelope tracking power supply having a linear amplifier having an output coupled to a power supply node of an amplifier, wherein a power supply node of the linear amplifier is coupled to a first voltage supply node. The envelope tracking power supply may also include a switch mode power supply having an output coupled to the power supply node of the amplifier. Certain aspects also include a circuit having a first switch coupled to the first voltage supply node and a second switch coupled to a second voltage supply node, wherein a power supply node of the switch mode power supply is coupled to the first switch and the second switch.

公开(公告)号：US20190326858A1

公开(公告)日：2019-10-24

申请号：US16457442

申请日：2019-06-28

Applicant: QUALCOMM Incorporated

Inventor： Zhiqing ZHANG ,  Chi Fan YUNG ,  Joseph DUNCAN ,  Jun HUA ,  Song SHI ,  Thomas MARRA

IPC: H03F1/02 ,  H03F3/213 ,  H03F3/195 ,  H02M3/155

Abstract: Certain aspects of the present disclosure provide methods and apparatus for generating an envelope tracking power supply voltage. For example, certain aspects of the present disclosure provide an envelope tracking power supply having a linear amplifier having an output coupled to a power supply node of an amplifier, wherein a power supply node of the linear amplifier is coupled to a first voltage supply node. The envelope tracking power supply may also include a switch mode power supply having an output coupled to the power supply node of the amplifier. Certain aspects also include a circuit having a first switch coupled to the first voltage supply node and a second switch coupled to a second voltage supply node, wherein a power supply node of the switch mode power supply is coupled to the first switch and the second switch.

公开(公告)号：US20180034416A1

公开(公告)日：2018-02-01

申请号：US15643242

申请日：2017-07-06

Applicant: QUALCOMM Incorporated

Inventor： Joseph DUNCAN ,  Thomas MARRA ,  Song SHI ,  Iulian MIREA

IPC: H03F1/02 ,  H03F3/195 ,  H03F3/213 ,  H03F1/26

CPC classification number: H03F1/0216 ,  H03F1/0211 ,  H03F1/26 ,  H03F3/195 ,  H03F3/213 ,  H03F2200/102 ,  H03F2200/451 ,  H03F2200/504 ,  H04B2001/0408

Abstract: Certain aspects of the present disclosure provide methods and apparatus for operating an envelope tracking power supply. The method may include receiving, from a modem of a device, information indicative of a transmit waveform statistic of a signal to be wirelessly transmitted by the device. The method may further include adjusting a configuration of the envelope tracking power supply based on the transmit waveform statistic of the signal.