公开(公告)号：US11677314B2

公开(公告)日：2023-06-13

申请号：US17511422

申请日：2021-10-26

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Gary Lin ,  Chung-Ping Ku ,  Nowa Wang

IPC: H02M7/219 ,  H02M1/42 ,  H02M3/158

CPC classification number: H02M1/4225 ,  H02M1/4233 ,  H02M3/1582 ,  H02M7/219

Abstract: A control circuit for a plurality of metal-oxide semiconductor field-effect transistors (MOSFETs) in a bridge circuit for rectifying an alternating current (AC) input to generate a direct-current (DC) output includes first and second high side controls and first and second low side controls for providing gate voltage signals to respective MOSFETs in the bridge circuit. Dead time controls are provided for establishing dead time intervals between activation of complementary MOSFETs in the bridge circuit. The low side controls provide gate voltage signals having sloped edges and the dead time controls include Zener diodes having reverse bias thresholds for determining the duration of the dead time intervals.

公开(公告)号：US10819139B2

公开(公告)日：2020-10-27

申请号：US15280884

申请日：2016-09-29

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Chung-Ping Ku ,  Po-Wen Hsueh

IPC: H02J9/06 ,  H02M7/04 ,  H02M3/04 ,  H02J1/10

Abstract: A power supply includes a power converter and a battery. A logic circuit controls division of output of power, between the power converter and the battery, to an output of the power supply.

公开(公告)号：US20230127621A1

公开(公告)日：2023-04-27

申请号：US17511422

申请日：2021-10-26

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Gary Lin ,  Chung-Ping Ku ,  Nowa Wang

IPC: H02M1/42 ,  H02M3/158 ,  H02M7/219

Abstract: A control circuit for a plurality of metal-oxide semiconductor field-effect transistors (MOSFETs) in a bridge circuit for rectifying an alternating current (AC) input to generate a direct-current (DC) output includes first and second high side controls and first and second low side controls for providing gate voltage signals to respective MOSFETs in the bridge circuit. Dead time controls are provided for establishing dead time intervals between activation of complementary MOSFETs in the bridge circuit. The low side controls provide gate voltage signals having sloped edges and the dead time controls include Zener diodes having reverse bias thresholds for determining the duration of the dead time intervals.

公开(公告)号：US10069407B1

公开(公告)日：2018-09-04

申请号：US15447553

申请日：2017-03-02

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Chung-Ping Ku ,  Gary Kai Hsien Wang ,  David Mohr

IPC: H02M3/04 ,  H02M7/04 ,  H02M7/00 ,  H02M1/42 ,  H05K7/20

Abstract: An example device in accordance with an aspect of the present disclosure includes a converter to convert an input voltage to an output voltage. The converter includes an input connector that occupies greater than one third of a frontal area of the converter.

公开(公告)号：US20180097526A1

公开(公告)日：2018-04-05

申请号：US15567806

申请日：2015-07-02

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Chung-Ping Ku ,  Mohamed Amin Bemat

IPC: H03M1/12 ,  G01R19/25

CPC classification number: H03M1/1245 ,  G01R19/2503 ,  G01R19/2509 ,  H03M2201/715

Abstract: According to some examples, systems and methods are provided for voltage sampling using one or more analog-to-digital converters (ADCs) to sense divided portions of a sampled voltage (e.g., of an output signal), using the one or more analog-to-digital converters to provide a plurality of digital values representative of those divided portions, and combining the plurality of digital values to produce a total digital value representative of the sampled voltage. Such systems and methods can achieve a high resolution for the total digital value while permitting use of ADCs that have a resolution lower than would otherwise be required to achieve the high resolution.

公开(公告)号：US10250275B2

公开(公告)日：2019-04-02

申请号：US15567806

申请日：2015-07-02

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Chung-Ping Ku ,  Mohamed Amin Bemat

IPC: H03M1/12 ,  G01R19/25

Abstract: According to some examples, systems and methods are provided for voltage sampling using one or more analog-to-digital converters (ADCs) to sense divided portions of a sampled voltage (e.g., of an output signal), using the one or more analog-to-digital converters to provide a plurality of digital values representative of those divided portions, and combining the plurality of digital values to produce a total digital value representative of the sampled voltage. Such systems and methods can achieve a high resolution for the total digital value while permitting use of ADCs that have a resolution lower than would otherwise be required to achieve the high resolution.

公开(公告)号：US20180090984A1

公开(公告)日：2018-03-29

申请号：US15280884

申请日：2016-09-29

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Chung-Ping Ku ,  Po-Wen Hsueh

IPC: H02J9/06 ,  H02M7/04 ,  H02M3/04

Abstract: A power supply includes a power converter and a battery. A logic circuit controls division of output of power, between the power converter and the battery, to an output of the power supply.