公开(公告)号：US20180269706A1

公开(公告)日：2018-09-20

申请号：US15919322

申请日：2018-03-13

Applicant: ASUSTeK COMPUTER INC.

Inventor： Kian-Ming CHEE ,  Shin-Hong WU ,  Wei-Chen TU

IPC: H02J7/00

CPC classification number: H02J7/0072 ,  H02J7/0026 ,  H02J7/0052 ,  H02J7/345 ,  H02J2007/0059

Abstract: A charging circuit applied to a post-stage circuit includes a power converting circuit, a power storage circuit, a switching circuit and a processing circuit. The power converting circuit receives an external voltage and converts the external voltage to a charging voltage. The power storage circuit is coupled to the power converting circuit and receives the charging voltage to store the power. The switching circuit is coupled to the power converting circuit and the power storage circuit. The processing circuit is coupled to the switching circuit and controls the charging circuit operated in a first mode or a second mode. When operated in the first mode, the external voltage supplies power to the post-stage circuit. When operated in the second mode, the charging voltage supplies power to the post-stage circuit.

公开(公告)号：US20180166902A1

公开(公告)日：2018-06-14

申请号：US15837057

申请日：2017-12-11

Applicant: ASUSTeK COMPUTER INC.

Inventor： Yi-Ming HUANG ,  Feng-Chi SHEN ,  Chien-Chung LO ,  Shin-Hong WU

IPC: H02J7/00 ,  H02M3/07

Abstract: An electronic device includes an energy storage unit, a charge pump circuit, a charging circuit, and a controller. The charge pump circuit is electrically connected to the power supply, and the power supply is configured to receive the input electrical energy. The charging circuit is electrically connected between the charge pump circuit and the energy storage unit. The controller is electrically connected with the power supply, the charge pump circuit, and the charging circuit respectively, and the controller controls the charge pump circuit and the charging circuit to switch among a plurality of charging modes according to compatibility information of the power supply.