公开(公告)号：US10804713B2

公开(公告)日：2020-10-13

申请号：US15838680

申请日：2017-12-12

Applicant: ASUSTeK COMPUTER INC.

Inventor： Feng-Chi Shen ,  Tsung-Han Wu ,  Chien-Chung Lo ,  Yii-Lin Wu

IPC: H02J7/00 ,  H02J7/34

Abstract: A charge-discharge device and a control method of the charge-discharge device are provided. The control method of the charge-discharge device comprising: receiving an input voltage signal via a configuration channel of a USB port; sampling the input voltage signal in a predetermined period to generate a plurality of sampling values; selectively connecting the configuration channel to a pull-down circuit or a pull-up circuit according to the sampling values, receiving a first charging voltage via a power channel of the USB port when the configuration channel is connected to the pull-down circuit, and outputting a second charging voltage via the power channel when the configuration channel is connected to the pull-up circuit.

公开(公告)号：US10965131B2

公开(公告)日：2021-03-30

申请号：US15851995

申请日：2017-12-22

Applicant: ASUSTeK COMPUTER INC.

Inventor： Wei-Gen Chung ,  Chien-Chung Lo ,  Ming-Ting Tsai ,  Yue-Han Wu ,  Tsung-Han Wu

IPC: H02J7/00 ,  H02J7/14

Abstract: A charging protection device comprises a universal serial bus (USB) interface, a resistance circuit, a detection circuit and a control circuit. The universal serial bus interface includes a configuration channel. The resistance circuit includes a pull-down resistor coupled between the configuration channel and a ground GND. The detection circuit is configured to detect an abnormal charging condition. The detection circuit generates an abnormal signal when the abnormal charging condition occurs. The control circuit is coupled to the detection circuit and configured to change a voltage value on the pull-down resistor to be out of a preset voltage range according to the abnormal signal.

公开(公告)号：US11641124B2

公开(公告)日：2023-05-02

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: H02J7/00 ,  H02J7/06

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.

公开(公告)号：US10707691B2

公开(公告)日：2020-07-07

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 ,  H02M3/158 ,  H02M1/00

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.