公开(公告)号：US20200036220A1

公开(公告)日：2020-01-30

申请号：US16512500

申请日：2019-07-16

Applicant: ASUSTeK COMPUTER INC.

Inventor： Tsung-Han WU ,  Ming-Ting TSAI ,  Wei-Gen CHUNG ,  Hsi-Ho HSU ,  Chen-Hao YU

IPC: H02J9/06 ,  H02J7/34 ,  H02J1/14 ,  H02J7/00 ,  G06F1/30 ,  G01R31/382

Abstract: A power management method includes: determining, by a control circuit, whether a first connector is connected to a first power supply and whether a second connector is connected to a second power supply. The method further includes: controlling, by the control circuit, a first conversion circuit to supply power to a battery unit and a system circuit, and computing a second fully-charged condition that is less than a first fully-charged condition when a determining result is yes. The method also includes: determining, by the control circuit, whether power information of the battery unit reaches the second fully-charged condition, and controlling, by the control circuit, a second conversion circuit to convert a second power from the second connector according to the second fully-charged condition, to supply power to the battery unit and the system circuit. A related circuit and electronic device are also provided.

公开(公告)号：US20210135566A1

公开(公告)日：2021-05-06

申请号：US16984240

申请日：2020-08-04

Applicant: ASUSTeK COMPUTER INC.

Inventor： Chun-San LIN ,  Ming-Ting TSAI ,  Wei-Gen CHUNG ,  Hsi-Ho HSU ,  Chen-Hao YU

IPC: H02M3/07 ,  H02M1/00

Abstract: A voltage converter is provided. The voltage converter includes a charge pump and a switching circuit. The charge pump includes an input capacitor, where two ends of the input capacitor are electrically connected to an input end and a ground end respectively. The switching circuit includes a first switch, a second switch, a third switch, and a fourth switch, and these switches are connected in series. The first switch is electrically connected to the input end, the fourth switch is electrically connected to the ground end, a capacitor is connected in parallel with the second switch and the third switch, and an output end is electrically connected between the second switch and the third switch.

公开(公告)号：US20180278082A1

公开(公告)日：2018-09-27

申请号：US15923252

申请日：2018-03-16

Applicant: ASUSTeK COMPUTER INC.

Inventor： Tsung-Han WU ,  Wei-Gen CHUNG ,  Yi-Ming HUANG ,  Chien-Chung LO

IPC: H02J7/06

CPC classification number: H02J7/06 ,  H02J7/0072 ,  H02J7/085 ,  H02J2007/0001 ,  H02J2007/0096 ,  H02J2007/10

Abstract: Provided is an electronic device configured to be charged with an adapter. The electronic device includes an energy storage unit, a charging unit and a switch unit. The charging unit is configured to receive a bus voltage and output a charging voltage to charge the energy storage unit. The switch unit is electrically coupled in parallel to the charging unit. When the electronic device is coupled to the adapter through a bus interface, the electronic device receives the bus voltage from the adapter, receives a communication signal from the adapter, and selectively turns on or off the switch unit according to the communication signal, and when the electronic device operates in a direct charging mode, the switch unit is turned on to form a direct charging path, to charge the energy storage unit by using the bus voltage.