公开(公告)号：US11258359B2

公开(公告)日：2022-02-22

申请号：US16832245

申请日：2020-03-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jong-beom Baek ,  Dong-su Kim ,  Jun-suk Bang

IPC: H02M3/07 ,  H02M3/158

Abstract: A switching regulator configured to generate an output voltage from an input voltage, includes an inductor, an output capacitor configured to generate the output voltage based on a current passing through the inductor, a flying capacitor, and a plurality of switches. The plurality of switches are configured to operate in at least one of a buck-boost mode or a boost mode to, charge the flying capacitor to the input voltage in a first phase, and provide a boosted voltage from the flying capacitor to the inductor in a second phase, the boosted voltage being generated by charge pumping from the input voltage.

公开(公告)号：US10826436B2

公开(公告)日：2020-11-03

申请号：US16864483

申请日：2020-05-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dong-su Kim ,  Jun-suk Bang

IPC: H04W52/02 ,  H03F1/02 ,  H03F3/24 ,  H04B1/40

Abstract: A power supply modulator includes: a linear regulator; a switching regulator; and a mode-based connection circuit. The mode-based connection circuit includes a coupling circuit configured to drop an output signal of the linear regulator by a target coupling voltage in an envelope tracking (ET) modulation mode; and a coupling voltage management circuit configured to monitor a coupling voltage of the coupling circuit in another modulation mode, and selectively apply a voltage to the coupling voltage based on a monitoring result such that the coupling voltage is maintained at the target coupling voltage.

公开(公告)号：US20200259457A1

公开(公告)日：2020-08-13

申请号：US16864483

申请日：2020-05-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dong-su Kim ,  Jun-suk Bang

IPC: H03F1/02 ,  H04W52/02 ,  H03F3/24

Abstract: A power supply modulator includes: a linear regulator; a switching regulator; and a mode-based connection circuit. The mode-based connection circuit includes a coupling circuit configured to drop an output signal of the linear regulator by a target coupling voltage in an envelope tracking (ET) modulation mode; and a coupling voltage management circuit configured to monitor a coupling voltage of the coupling circuit in another modulation mode, and selectively apply a voltage to the coupling voltage based on a monitoring result such that the coupling voltage is maintained at the target coupling voltage.