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公开(公告)号：US20250048567A1
公开(公告)日：2025-02-06
申请号：US18625247
申请日：2024-04-03
Applicant: Delta Electronics (Shanghai) Co., Ltd.
Inventor： Jianxing DONG , Lei CHEN , Teng LIU , Xiaohu LI
Abstract: The present application provides an insulation structure and an electronic device, where the insulation structure includes a first substrate, a first conductive body, and a first groove, the first substrate includes a first surface and a second surface oppositely disposed; the first conductive body is disposed on the first surface or second surface; the first groove is located on a same surface as the first conductive body and adjacent to the first conductive body; a surface of the first groove is provided with a first conductive layer, and the first conductive layer is electrically connected with the first conductive body. The insulation structure of the present application slows down the trend of potential line changes at the end of the first conductive body, reduces the electric field strength here, and improves the reliability of insulation.
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公开(公告)号：US12160165B2
公开(公告)日：2024-12-03
申请号：US18325137
申请日：2023-05-30
Applicant: Delta Electronics (Shanghai) Co., Ltd.
Abstract: The present disclosure discloses a power conversion system and a communication method for transmitting common mode information in the power conversion system. The communication method comprises the following steps: (a) providing at least two power conversion cells; (b) generating, by each of the power conversion cells, an AC harmonic according to a first electrical signal at the first terminal of the power conversion cell, wherein an amplitude of each AC harmonic represents first information of the power conversion cell, and all the AC harmonics are at the same frequency; and (c) injecting the AC harmonic generated by the corresponding power conversion cells into the first terminal of the corresponding power conversion cell and applying a closed-loop suppression to the AC harmonic generated by the corresponding power conversion cell, and controlling the resonance control unit to output a second electrical signal related to the first information.
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公开(公告)号：US12159749B2
公开(公告)日：2024-12-03
申请号：US18493818
申请日：2023-10-25
Applicant: Delta Electronics (Shanghai) Co., Ltd.
Inventor： Chaofeng Cai , Xiaoni Xin , Jianhong Zeng , Shouyu Hong , Rui Wu , Haoyi Ye , Yiqing Ye , Jinping Zhou , Zhiheng Fu , Min Zhou , Yu-Ching Kuo , Tong-Sheng Pan , Wen-Yu Lin
Abstract: The present disclosure provides a transformer module and a power module, wherein the transformer module comprises: a magnetic core, a first wiring layer, a first insulating layer and a second wiring layer, where the first wiring layer, the first insulating layer and the second wiring layer are sequentially disposed on the magnetic core from outside to inside; a first metal winding, formed in the first wiring layer, where at least part of the first metal winding is wound around the magnetic core in a foil structure; the first insulating layer, at least partially covered by the first metal winding; a second metal winding, formed in the second wiring layer and wound around the magnetic core, where the second metal winding is at least partially covered by the first insulating layer, and at least partially covered by the first metal winding.
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公开(公告)号：US20240396436A1
公开(公告)日：2024-11-28
申请号：US18669542
申请日：2024-05-21
Applicant: Delta Electronics (Shanghai) Co.,Ltd.
Inventor： Jinfa ZHANG , Xiaolei WANG
Abstract: The disclosure provides a method and a system for warming-up an electrolytic capacitor. The method comprises: providing a power factor correction circuit comprising an AC terminal, a DC terminal and the electrolytic capacitor, wherein the DC terminal is connected in parallel to the electrolytic capacitor; determining whether it is necessary to perform a warm-up operation on the electrolytic capacitor; when it is determined to be necessary, generating a ripple current on the electrolytic capacitor by controlling an input current to flow into the AC terminal of the power factor correction circuit; and when the warmed-up state of the power factor correction circuit that is generated based on the ripple current matches a specified warmed-up exit condition, terminating the warm-up operation performed on the electrolytic capacitor.
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公开(公告)号：US20240388078A1
公开(公告)日：2024-11-21
申请号：US18644059
申请日：2024-04-23
Applicant: Delta Electronics (Shanghai) Co.,Ltd.
Inventor： Qingchang LIU , Chao LI , Pengfei WANG , Pengcheng ZHU , Bin LI
Abstract: The application discloses a power supply device and an overcurrent alarm method. The power supply device provides power to a load system and includes: a current sampling module for obtaining a current sampling value; a first comparison module for comparing the current sampling value with an alarm current reference value to obtain a first output value; and a control module for determining whether to send a current alarm signal to the load system based on the first output value, wherein when the current sampling value is greater than or equal to the alarm current reference value, the control module sends the current alarm signal and provides a warning notification to the load system; when the current sampling value is less than the alarm current reference value, the control module does not send the current alarm signal, or the control module sends a current non-alarm signal.
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Patent Agency Ranking
公开(公告)号：US20240379277A1
公开(公告)日：2024-11-14
申请号：US18781881
申请日：2024-07-23
Applicant: Delta Electronics (Shanghai) CO., LTD.
Inventor： Pengkai JI , Yuan ZHOU
IPC: H01F27/255 , H01F27/30 , H01F41/02 , H01F41/06
Abstract: A multi-phase coupled inductor includes at least three windings between a first plane and a second plane and a magnetic core that includes a first magnetic core, a second magnetic core and at least three magnetic core pillars, the first and second magnetic cores are respectively located at two ends of the windings, the magnetic core pillars connect the first and second magnetic cores and form at least three magnetic core units together with the first and second magnetic cores. The magnetic core units and the windings are arranged correspondingly on a one-to-one basis, the magnetic core units surround the corresponding windings and extend from the first plane to the second plane in a same direction, and projections of the at least three magnetic core units on the first plane enclose at least three enclosed areas which correspond to the windings on a one-to-one basis.
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公开(公告)号：US20240339920A1
公开(公告)日：2024-10-10
申请号：US18624817
申请日：2024-04-02
Applicant: Delta Electronics (Shanghai) Co., Ltd.
Inventor： Hong Liu , Baihui Song , Wen Zhang
CPC classification number: H02M1/007 , H02M1/0043 , H02M1/14 , H02M3/33576 , H02M7/217
Abstract: A two-stage converter and a control method thereof are provided. The two-stage converter includes a first stage conversion unit, a capacitor unit and a second stage conversion unit. The first stage conversion unit receives a first power and converts the first power into a second power. The capacitor unit is electrically connected to the first stage conversion unit to receive the second power. The second stage conversion unit is electrically connected to the capacitor unit to receive a power transmitted by the capacitor unit. The first stage conversion unit receives a switch signal which has a switching cycle. In at least one said switching cycle, the two-stage converter performs a first control mode in which an operation state of the second stage conversion unit is adjusted according to an operation state of the first stage conversion unit.
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8.发明授权公开(公告)号：US12113431B2
公开(公告)日：2024-10-08
申请号：US17822439
申请日：2022-08-26
Applicant: Delta Electronics (Shanghai) CO., LTD
Inventor： Guoqiao Shen , Jinfa Zhang
CPC classification number: H02M1/0095 , H02M1/327 , H02M3/003 , H02M3/07 , H02M3/1582 , H02M3/1584 , H05K7/20909
Abstract: Disclosed is a flying capacitor three-level converter, including a plurality of circuit units, wherein each of the plurality of circuit units includes: an input capacitor; a bridge arm, electrically connected with the input capacitor in parallel, wherein the bridge arm includes a first switch, a second switch, a third switch and a fourth switch electrically and sequentially connected in series; and a flying capacitor unit, wherein the flying capacitor unit includes a first capacitor and a second capacitor, and the first capacitor and the second capacitor are electrically connected in parallel and electrically connected with a series branch in parallel, and the series branch includes the second switch and the third switch; wherein the input capacitor, the first switch, the first capacitor and the fourth switch form a first switching loop, and the second capacitor, the second switch and the third switch form a second switching loop.
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公开(公告)号：US20240333142A1
公开(公告)日：2024-10-03
申请号：US18613745
申请日：2024-03-22
Applicant: Delta Electronics (Shanghai) Co., Ltd.
Inventor： Wen Zhang , Hong Liu , Baihui Song
CPC classification number: H02M3/015 , H02M3/33573
Abstract: A control circuit for a resonant conversion circuit is provided. The resonant conversion circuit includes a switching circuit, a resonant network and a rectifier circuit. Firstly, a starting point of an operating trajectory with a plurality of trajectory segments is determined according to a sampling data sampled at a first switching time point. Then, the starting point of each trajectory segment is determined. The operating mode is determined according to the starting point of the corresponding trajectory segment, and a curve and an end point of the trajectory segment are predicted according to the operating mode. Then, the duration time of each trajectory segment is calculated. The end point of the operating trajectory is determined according to a control instruction. According to the execution time between the starting point and the end point of the operating trajectory, a next switching time point is controlled.
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公开(公告)号：US20240333025A1
公开(公告)日：2024-10-03
申请号：US18393578
申请日：2023-12-21
Applicant: Delta Electronics (Shanghai) Co.,Ltd.
Inventor： Sanyuan OUYANG , Hong LIU , Weiqiang ZHANG , Baihui SONG
Abstract: The disclosure discloses a power supply system and a power supply method. The power supply system includes a first sub-system including at least two first power supply devices and a first load, the first power supply devices for powering the first load; a second sub-system including a second power supply device and a second load, the second power supply device for powering the second load; and a connection unit configured to control electrical connection or electrical disconnection between the first power supply devices and the second load; wherein power supply availability of the first sub-system is higher than power supply availability of the second sub-system. The disclosure provides more power supply availabilities through few types of power supply structures, which facilitates application scenarios such as data center to flexibly adjust the power supply structures according to business, and save cost.
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