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公开(公告)号：US20230163626A1
公开(公告)日：2023-05-25
申请号：US18152278
申请日：2023-01-10
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Baoguo CHEN , Jianhua ZHU
CPC classification number: H02J9/061 , H02M3/003 , H02J7/0029 , H02J7/0047 , H02J7/00032
Abstract: The battery assembly includes a control unit and a DCDC converter. The control unit is configured to, when a first load is short-circuited in a process in which the battery assembly supplies power to the first load, control the DCDC converter to output a first current. The first current is greater than a maximum nominal discharge current of the battery assembly, is used to break an electrical connection between the first load and a busbar, and is less than a short-circuit protection current of the battery assembly; and/or the control unit is configured to, after a power supply encounters a power failure, control a discharge capability of the battery assembly to be greater than a maximum nominal discharge capability of the battery assembly, and supply power to a first load and a second load by using a DCDC converter.
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公开(公告)号：US20230089905A1
公开(公告)日：2023-03-23
申请号：US17994635
申请日：2022-11-28
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Hua JIANG , Zejie LV , Baoguo CHEN
Abstract: A bridgeless PFC circuit includes: a control module that collects a current flowing through a current sampling element; and when the current flowing through the current sampling element is greater than a first threshold, the control module controls a switch element to be turned on. Based on the current flowing through the current sampling element, the switch element can be controlled to be turned on, thereby implementing zero-voltage turn-on of the switch element. Because the collected current does not change abruptly, a delay requirement on a sampling control circuit included in the control module is lowered, and a signal anti-interference capability of the control module is strong.
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