公开(公告)号：US20190147921A1

公开(公告)日：2019-05-16

申请号：US15869558

申请日：2018-01-12

Applicant: Quanta Computer Inc.

Inventor： Hsin-Chih KUO

IPC: G11C5/14 ,  H03K17/22 ,  H03K5/19 ,  H02M3/335 ,  G11C7/10 ,  G11C7/22 ,  G11C7/14 ,  H02M1/08

Abstract: A power reset circuit is provided. The power reset circuit has a first terminal coupled to a first power storage element and a second terminal coupled to a second power storage element and a load and includes a discharging control circuit and a switching control circuit. The discharging control circuit induces a short circuit between the second terminal and the ground terminal when a supply voltage at the second terminal is lower than a reset voltage to provide a first discharging path. The switching control circuit provides a conduction path between the first and second terminals when the supply voltage is higher than an end-of-discharging voltage lower than the reset voltage. During a period when the supply voltage is lower than the end-of-discharging voltage, the switching control circuit cuts off the conduction path and provides a second discharging path between the first terminal and the discharging control circuit.

公开(公告)号：US20220190618A1

公开(公告)日：2022-06-16

申请号：US17163725

申请日：2021-02-01

Applicant: Quanta Computer Inc.

Inventor： Hsin-Chih KUO ,  Ming-Chieh LEE

IPC: H02J7/00

Abstract: An electronic device selectively coupled to a first charger and/or a second charger includes a power supply interface, a first comparator, a second comparator, a controller, a first switch circuit, and a second switch circuit. The power supply interface receives a first input voltage and a second input voltage. The first comparator compares the first input voltage with a first reference voltage, so as to generate a first comparison voltage. The second comparator compares the second input voltage with a second reference voltage, so as to generate a second comparison voltage. The controller generates a first control voltage and a second control voltage according to the first comparison voltage and the second comparison voltage. The first switch circuit is selectively enabled or disabled according to the first control voltage. The second switch circuit is selectively enabled or disabled according to the second control voltage.

公开(公告)号：US20240333279A1

公开(公告)日：2024-10-03

申请号：US18308066

申请日：2023-04-27

Applicant: Quanta Computer Inc.

Inventor： Hsin-Chih KUO

IPC: H03K17/16

CPC classification number: H03K17/161

Abstract: An electronic device includes a first switch circuit, a second switch circuit, and a mechanical switch. The first switch circuit is coupled to a control node. The first switch circuit is configured to generate a first control voltage. The second switch circuit is coupled to the control node. The second switch circuit is configured to generate a second control voltage. The mechanical switch is configured to selectively couple the control node to a ground voltage. When the first switch circuit is switched, the second control voltage is not affected. When the second switch circuit is switched, the first control voltage is not affected.

公开(公告)号：US20190341839A1

公开(公告)日：2019-11-07

申请号：US16105198

申请日：2018-08-20

Applicant: Quanta Computer Inc.

Inventor： Hsin-Chih KUO

IPC: H02M1/08 ,  H03K17/687

Abstract: An enable circuit includes a first detection controller, a second detection controller, and an enable switch. The first detection controller has a first input terminal coupled to a first input terminal voltage and a first output terminal. The second detection controller has a second input terminal coupled to the first input terminal voltage and a second output terminal. The enable switch has a control terminal coupled to the second output terminal, a third input terminal coupled to a second input terminal voltage, and a third output terminal. When the first input terminal voltage is higher than the first setting voltage but lower than the second setting voltage, the enable circuit is coupled to ground by the second output terminal, thus the enable switch is turned on to output an enable signal from the third output terminal, wherein the enable signal is provided by a second input terminal voltage.

公开(公告)号：US20200136495A1

公开(公告)日：2020-04-30

申请号：US16410281

申请日：2019-05-13

Applicant: Quanta Computer Inc.

Inventor： Hsin-Chih KUO

IPC: H02M1/08 ,  G06F1/28 ,  G06F1/3206 ,  H02M3/156

Abstract: A power control circuit includes a detection device, a first control device, and a second control device. When the detection signal is changed from lower to higher than the first voltage, the first control device's output is changed to the second potential. When the detection signal is changed from higher to lower than the second voltage, the first control device's output is changed to the first potential. When the detection signal is changed from lower to higher than the third voltage, the second control device's output is changed to the fourth potential. When the detection signal is changed from higher to lower than the fourth voltage, the second control device's output is changed to the third potential. According to the first or second potentials, the circuit device turns on/off the first function. According to the third or fourth potentials, the circuit device turns on/off the second function.

公开(公告)号：US20180309310A1

公开(公告)日：2018-10-25

申请号：US15675963

申请日：2017-08-14

Applicant: Quanta Computer Inc.

Inventor： Hsin-Chih KUO

IPC: H02J7/00

CPC classification number: H02J7/0065 ,  G06F1/1632 ,  G06F1/263 ,  G06F1/266 ,  H02J1/108 ,  H02J2007/0095

Abstract: An electronic device includes a main device and an expansion device with an auxiliary battery device. The main device includes a main battery device, a voltage-directing device, a switch device, a first soft-start device, and a comparison device. The voltage-directing device outputs, through an output terminal, the higher of the voltages at a first input terminal and a second input terminal. The first soft-start device is connected to the auxiliary battery device and outputs a voltage to the second input terminal when the main device is connected to the expansion device. The comparison device controls the switch device to enter an off-state when the voltage at the second input terminal is higher than a reference voltage, and controls the switch device to enter an on-state when the voltage at the second input terminal is not higher than the reference voltage.