公开(公告)号：US20210408969A1

公开(公告)日：2021-12-30

申请号：US17313364

申请日：2021-05-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Junsuk BANG ,  Dongsu KIM

IPC: H03F1/02 ,  H03F3/24

Abstract: A supply modulator including a multiple output voltage regulator (MOVR) configured to output voltages in a discrete level-envelope tracking mode (DLETM) having different levels from each other respectively corresponding to reference output voltage signals, a switching regulator configured to output a switching regulator voltage, an output voltage being based on the switching regulator voltage and a selected voltage among the voltages in the DLETM and based on the switching regulator voltage in an average power tracking mode, a switching regulator controller configured to sense an output current of the MOVR to obtain a sensing value, and control the switching regulator based on the sensing value in the DLETM, a switch array comprising switches respectively corresponding to the voltages and configured to selectively connect the selected voltage to a power amplifier by performing a switching operation, and a switch controller configured to control the switching operation.

公开(公告)号：US20250070722A1

公开(公告)日：2025-02-27

申请号：US18741079

申请日：2024-06-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ikhwan KIM ,  Junsuk BANG ,  Jeongil SEO

IPC: H03F1/02 ,  H03F3/24 ,  H04B1/04

Abstract: A power modulator configured to provide a supply voltage of a power amplifier. The power modulator includes a converter configured to output the supply voltage to the power amplifier, a switch connected to a first capacitor and a second capacitor, a first end of the first capacitor being connected to the converter, a second end of the first capacitor being connected to the switch, a first end of the second capacitor being connected to the converter, a second end of the second capacity being connected to a ground and the switch, and a capacitance of the second capacitor being less than a capacitance of the first capacitor, and a driver connected to the switch, the driver being configured to turn off the switch based on an occurrence of a transition of the supply voltage.

公开(公告)号：US20240213924A1

公开(公告)日：2024-06-27

申请号：US18597190

申请日：2024-03-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Junsuk BANG ,  Dongsu KIM

IPC: H03F1/02 ,  H03F3/24

CPC classification number: H03F1/0238 ,  H03F3/245 ,  H03F2200/105 ,  H03F2200/451

Abstract: A supply modulator including a multiple output voltage regulator (MOVR) configured to output voltages in a discrete level-envelope tracking mode (DLETM) having different levels from each other respectively corresponding to reference output voltage signals, a switching regulator configured to output a switching regulator voltage, an output voltage being based on the switching regulator voltage and a selected voltage among the voltages in the DLETM and based on the switching regulator voltage in an average power tracking mode, a switching regulator controller configured to sense an output current of the MOVR to obtain a sensing value, and control the switching regulator based on the sensing value in the DLETM, a switch array comprising switches respectively corresponding to the voltages and configured to selectively connect the selected voltage to a power amplifier by performing a switching operation, and a switch controller configured to control the switching operation.

公开(公告)号：US20230246662A1

公开(公告)日：2023-08-03

申请号：US18300006

申请日：2023-04-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dongsu KIM ,  Junsuk BANG

IPC: H04B1/16 ,  H04B1/04 ,  H04B1/18

CPC classification number: H04B1/1615 ,  H04B1/04 ,  H04B1/18 ,  H04B2001/0408

Abstract: Provided are a supply modulator and a wireless communication apparatus including the same. A supply modulator according to the inventive concept is driven in any one of an average power tracking mode and a discrete level envelope tracking mode to apply an output voltage to a power amplifier, and includes a multiple output voltage balancer, a switching regulator, a switching regulator controller, a switch array, a discrete-level controller, a switch controller, an output filter, and a main controller.