公开(公告)号：US10381925B2

公开(公告)日：2019-08-13

申请号：US15584486

申请日：2017-05-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seong-Kwan Lee ,  Sung-Chul Chun ,  Sung-Yeol Kim ,  Jae-Hong Kim

IPC: H02M3/156 ,  G01R1/30 ,  H02M3/02 ,  H02M1/00

Abstract: A power supply apparatus includes first through M-th switching regulators, first through N-th multiplexers, and first through N-th linear regulators, where each of M and N is a natural number greater than or equal to two. The first through M-th switching regulators generate first through M-th reference power signals using an input power signal. The first through N-th multiplexers select one of the first through M-th reference power signals, in response to a power selection signal, to provide first through N-th selection power signals. The first through N-th linear regulators generate first through N-th output power signals using the first through N-th selection power signals. The first through N-th linear regulators are connected to the first through N-th multiplexers, respectively.