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公开(公告)号：EP4443728A1
公开(公告)日：2024-10-09
申请号：EP24168766.4
申请日：2024-04-05
Applicant: Qorvo US, Inc.
Inventor： SCOTT, Baker , MAXIM, George , KHLAT, Nadim , LIU, Hui , REED, David Edward , BROWN, Christopher T.
CPC classification number: H02M3/158 , H02M3/157 , H02M1/0025
Abstract: Systems and methods for providing a direct current-to-direct current (DC-DC) converter with programmable compensation are disclosed. In one aspect, a power management chip having a DC-DC converter measures process, voltage, and temperature (PVT) variations and provides a dynamic compensation circuit (e.g., using programmable digital-to-analog converters (DACs)) to offset such PVT variations. Further, changes in frequency may be detected, and additional compensation values provided. Providing compensation in this manner allows the DC-DC converter's performance to be more efficient, resulting in better performance and power savings.
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2.发明公开
公开(公告)号：EP4441879A1
公开(公告)日：2024-10-09
申请号：EP22823568.5
申请日：2022-12-02
Applicant: Valeo Electrification
Inventor： CAPOUNDA, Jean Raphael , KERKAR, Cherif , ALLALI, Nicolas , TALON, Emmanuel
CPC classification number: H02M1/32 , H02M1/0009 , H02M3/1584 , H02M3/158 , H02M1/08
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公开(公告)号：EP4439957A1
公开(公告)日：2024-10-02
申请号：EP23168579.3
申请日：2023-04-18
Applicant: Hitachi Energy Ltd
Inventor： HUANG, Xing , YANG, XiaoBo , TUCKEY, Andrew Mark
CPC classification number: H02M3/158 , H02M1/007 , H02J3/381 , H02J3/46 , H02M1/0093
Abstract: An apparatus and a system for power conversion and a method for operating the apparatus are provided. The apparatus comprises: at least one first partial power converter (PPC) string connected in parallel with a DC bus, wherein each first PPC string comprises more than one PPCs connected in series, wherein, in each first PPC string, an output of each PPC of the more than one PPCs is connected in series, and an input of each PPC of the more than one PPCs is connected to a corresponding power source, wherein, in each PPC, the input of the PPC and the output of the PPC have one common terminal.
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公开(公告)号：EP4068606B1
公开(公告)日：2024-10-02
申请号：EP22163729.1
申请日：2022-03-23
IPC: H02M3/158
CPC classification number: H02M3/158 , H02M1/0025 , Y02B70/10
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公开(公告)号：EP3732769B1
公开(公告)日：2024-09-25
申请号：EP18896668.3
申请日：2018-12-31
IPC: H02J7/00 , H02M1/08 , H02M1/32 , H02M1/36 , H02M3/158 , H02M7/483 , H03K17/06 , H03K17/12 , H03K19/0185 , H02M1/10
CPC classification number: H03K17/063 , H03K17/122 , H03K2217/008120130101 , H03K2217/007220130101 , H03K2217/006320130101 , H03K19/018521 , H02M1/10 , H02M1/36 , H02M3/158 , H02M1/32 , H02M1/08 , H02J2207/2020200101 , H02M1/0083 , H02M7/4833 , H02J7/00 , H02J2207/4020200101
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Patent Agency Ranking
公开(公告)号：EP4429090A1
公开(公告)日：2024-09-11
申请号：EP24161723.2
申请日：2024-03-06
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： CHEN, Dong , SHI, Lei , LIU, Yunfeng
CPC classification number: H02M7/4833 , H02M7/487 , H02M1/123 , H02M1/12 , H02M3/158
Abstract: This application provides an inverter and an inverter control method. The inverter includes an inverter system and a controller. The inverter system includes an inverter circuit, positive and negative direct current buses, a bus capacitor, and a balancing circuit. The inverter is configured to: when a user connects to an unbalanced load, control the balancing circuit based on different magnitudes of voltage fluctuation generated by the unbalanced load for the bus capacitor, to implement a function of jointly sharing current fluctuation by the bus capacitor and the balancing circuit, and reduce design costs of the bus capacitor and the balancing circuit. Effect is significant and applicability is good.
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公开(公告)号：EP4418511A1
公开(公告)日：2024-08-21
申请号：EP23179269.8
申请日：2023-06-14
Applicant: Delta Electronics Inc.
Inventor： TUNG, Feng-Hsuan , TSAI, Terng-Wei , HUANG, Chia-Hsiong , LIN, Yu-Jen
CPC classification number: H02M3/01 , H02M3/07 , H02M1/0064 , H02M1/0058 , H02M1/0095 , H02M7/4837 , H02M7/4815 , H02M1/4241 , H02M1/4216 , H02M1/327 , H02M1/44 , H02M1/15 , H02M3/158
Abstract: A flying capacitor (FC, FC1, FC2, FC3, FC-1, FC-2) converter with zero-zero switching includes an input inductor (Lboost, Lboost-1, Lboost-2), a fast-switching switch leg (11), a slow-switching switch leg (12), at least one flying capacitor (FC, FC1, FC2, FC3, FC-1, FC-2), a resonant tank (13), and an output capacitor (Co). The fast-switching switch leg (11) included an upper leg (111) having a plurality of upper switches (Q11, Q12, Q13, Q14) and a lower leg (112) having a plurality of lower switches (Q21, Q22, Q23, Q24). The slow-switching switch leg (12) includes a slow-switching upper switch (Q1) and a slow-switching lower switch (Q2), and the slow-switching upper switch (Q1) and the slow-switching lower switch (Q2) are coupled at a second middle node (N2). The at least one flying capacitor (FC, FC1, FC2, FC3, FC-1, FC-2) is correspondingly coupled between the upper node (N11, N12, N13) and the lower node (N21, N22, N23). The resonant tank (13) includes a resonant inductor (Lr) and a resonant capacitor (Cr), and the resonant inductor (Lr) and the resonant capacitor (Cr) are coupled in series between the first middle node (N1) and the second middle node (N2).
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8.发明授权
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公开(公告)号：EP4396932A1
公开(公告)日：2024-07-10
申请号：EP22882840.6
申请日：2022-10-18
Applicant: Shanghai United Imaging Healthcare Co., Ltd.
Inventor： YANG, Yansi , WANG, Haike , WANG, Hongtao , QIN, Xiaohua , SUN, Fengjie , WEN, Ruijian
IPC: H02M1/14
CPC classification number: Y02B70/10 , H02M1/14 , H02M1/44 , H02M3/01 , H02M3/158 , H02M1/009 , H02M1/0045 , H02M1/007 , H02M3/33507
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10.发明授权
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