公开(公告)号：US20210099089A1

公开(公告)日：2021-04-01

申请号：US17120756

申请日：2020-12-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Nomiyama TAKAHIRO ,  Ik-hwan KIM ,  Ji-seon PAEK

IPC: H02M3/158

Abstract: A switching regulator including a first converting stage and a second converting stage may be provided. The first converting stage may include a first output capacitor connected between a first output node and ground, the first converting stage configured to receive a first input voltage and provide an output voltage by adjusting a level of the output voltage based on a first dynamic voltage scaling (DVS) rate relating to a first load condition of a processing circuit. The second converting stage may include a second output capacitor connected between a second output node and the ground, the second converting stage configured to receive a second input voltage and provide the output voltage by adjusting the level of the output voltage based on a second DVS rate relating to a second load condition of the processing circuit, which is heavier than the first load condition of the processing circuit.

公开(公告)号：US20200304029A1

公开(公告)日：2020-09-24

申请号：US16585290

申请日：2019-09-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Nomiyama TAKAHIRO ,  lk-hwan KIM ,  Ji-seon PAEK

IPC: H02M3/158

Abstract: A switching regulator including a first converting stage and a second converting stage may be provided. The first converting stage may include a first output capacitor connected between a first output node and ground, the first converting stage configured to receive a first input voltage and provide an output voltage by adjusting a level of the output voltage based on a first dynamic voltage scaling (DVS) rate relating to a first load condition of a processing circuit. The second converting stage may include a second output capacitor connected between a second output node and the ground, the second converting stage configured to receive a second input voltage and provide the output voltage by adjusting the level of the output voltage based on a second DVS rate relating to a second load condition of the processing circuit, which is heavier than the first load condition of the processing circuit.

公开(公告)号：US20190334750A1

公开(公告)日：2019-10-31

申请号：US16233192

申请日：2018-12-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： TAKAHIRO NOMIYAMA ,  Dong-su KIM ,  Ji-seon PAEK

IPC: H04L27/26 ,  H03F1/02 ,  H03F3/19

Abstract: A symbol power tracking amplification system including: a modem to generate data and symbol tracking signals; a symbol tracking modulator including a control circuit, first and second voltage supply circuits and a switch circuit, the control circuit generates first and second voltage level control signals in response to the symbol tracking signal, the first voltage supply circuit generates a first output voltage in response to the first voltage level control signal, the second voltage supply circuit generates a second output voltage in response to the second voltage level control signal and the switch circuit outputs the first or second output voltages as a supply voltage in response to a switch control signal; an RF block to generate an RF signal based on the data signal from the modem; and a power amplifier to adjust a power level of the RF signal based on the supply voltage.

公开(公告)号：US20180123516A1

公开(公告)日：2018-05-03

申请号：US15613705

申请日：2017-06-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dong-su KIM ,  Ji-seon PAEK

IPC: H03F1/02 ,  H03F3/24 ,  H03F3/189 ,  H04L27/04

CPC classification number: H03F1/02 ,  H03F1/0227 ,  H03F3/189 ,  H03F3/19 ,  H03F3/24 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/105 ,  H03F2200/451 ,  H04L27/04

Abstract: A supply modulator includes: a voltage generator including output terminals respectively outputting voltages having different levels, and configured to select, in response to a selection control signal corresponding to an envelope signal, at least one of the voltages as a selection supply voltage and to generate the selection supply voltage by performing DC-DC conversion on a power supply voltage; and a switch unit configured to connect an output terminal through which the selection supply voltage is output to a power amplifier, in response to a connection control signal corresponding to the envelope signal.