公开(公告)号：US20180062400A1

公开(公告)日：2018-03-01

申请号：US15488525

申请日：2017-04-17

Applicant: VIA Technologies, Inc.

Inventor： Tze-Shiang Wang

IPC: H02J7/00

CPC classification number: H02J7/045 ,  H02J2007/0096

Abstract: A charger and a power delivery control chip and a charging method thereof are provided. Resistance values of equivalent resistances corresponding to a power supply bus are calculated according to a charging current and voltage sensing signals respectively provided by chips of a first connector and a second connector. A charging voltage supplied to the power supply bus is adjusted according to a target charging voltage, a current charging current, and variations of the resistance values of the equivalent resistances corresponding to the power supply bus.

公开(公告)号：US10417144B2

公开(公告)日：2019-09-17

申请号：US15631154

申请日：2017-06-23

Applicant: VIA TECHNOLOGIES, INC.

Inventor： Tze-Shiang Wang

IPC: G06F13/10 ,  G06F13/40 ,  G11B33/12

Abstract: A bridge device including a first connector, a first transceiver, a second connector, a second transceiver, a voltage processor, and a controller is provided. The first connector is configured to couple to a host and includes a first pin. The first transceiver is coupled between the first pin and a node and includes a first current limiter. The second connector is configured to couple to a peripheral device and includes a second pin. The second transceiver is coupled between the node and the second pin and includes a second current limiter. The voltage processor processes the voltage of the node to generate an operation voltage. The controller receives the operation voltage to determine whether to turn on at least one of the first and second transceivers.

公开(公告)号：US10263454B2

公开(公告)日：2019-04-16

申请号：US15488525

申请日：2017-04-17

Applicant: VIA Technologies, Inc.

Inventor： Tze-Shiang Wang

IPC: H01M10/44 ,  H01M10/46 ,  H02J7/04 ,  H02J7/00

Abstract: A charger and a power delivery control chip and a charging method thereof are provided. Resistance values of equivalent resistances corresponding to a power supply bus are calculated according to a charging current and voltage sensing signals respectively provided by chips of a first connector and a second connector. A charging voltage supplied to the power supply bus is adjusted according to a target charging voltage, a current charging current, and variations of the resistance values of the equivalent resistances corresponding to the power supply bus.

公开(公告)号：US10649513B2

公开(公告)日：2020-05-12

申请号：US15647449

申请日：2017-07-12

Applicant: VIA TECHNOLOGIES, INC.

Inventor： Tze-Shiang Wang

IPC: G06F1/26 ,  G05F1/56 ,  G05F1/571 ,  G06F1/28 ,  G06F13/12 ,  H02M5/293

Abstract: An energy regulation circuit including a first voltage regulator, a processor, a second voltage regulator, and a controller is provided. The first voltage regulator adjusts an input voltage to generate an adjustment voltage. The processor increases the adjustment voltage according to the input voltage to generate a boost voltage. An energy accumulator is charged according to the boost voltage. The second voltage regulator adjusts the boost voltage to generate an operation voltage. The controller operates according to the operation voltage.

公开(公告)号：US20190123572A1

公开(公告)日：2019-04-25

申请号：US16006851

申请日：2018-06-13

Applicant: VIA Technologies, Inc.

Inventor： Tze-Shiang Wang

IPC: H02J7/00 ,  H02M1/36

Abstract: A start-up apparatus for a battery management circuit and a battery management system having the same are provided. The start-up apparatus for the battery management circuit includes a transformer, a switch circuit, a control circuit, and a rectifier circuit. The transformer includes a primary winding, an auxiliary winding, and a secondary winding. A first terminal of the primary winding is coupled to a first external power path. A first terminal of the switch circuit is coupled to a second terminal of the primary winding, and a second terminal of the switch circuit is coupled to a second external power path. The control circuit is coupled to the auxiliary winding for receiving power and controls a conduction state of the switch circuit. The rectifier circuit is coupled to the secondary winding of the transformer and supplies power to the battery management circuit.