-
公开(公告)号：US20250096665A1
公开(公告)日：2025-03-20
申请号：US18815887
申请日：2024-08-27
Applicant: Delta Electronics (Shanghai) CO., LTD.
Inventor： Kehua MA , Daofei XU , Haitao ZHANG
Abstract: The present disclosure provides a method for controlling a power adapter and a power adapter, and relates to the field of power technologies. The method includes: obtaining a real-time value of a bus voltage of the power adapter; matching the real-time value of the bus voltage with N control voltage intervals V1 to VN to obtain a real-time control voltage interval that matches the real-time value of the bus voltage, wherein N≥2, the N control voltage intervals are continuous and incremental from V1 to VN, and the N control voltage intervals V1 to VN correspond to N different output power control values P1 to PN; and adjusting, according to the real-time control voltage interval, an output power command value of the power adapter to an output power control value corresponding to the real-time control voltage interval.
-
公开(公告)号：US20240333170A1
公开(公告)日：2024-10-03
申请号：US18611722
申请日：2024-03-21
Applicant: Delta Electronics (Shanghai) Co.,Ltd.
Inventor： Qi FU , Daofei XU , Shengnan XIE , Jinfa ZHANG
CPC classification number: H02M7/05 , H02M1/0006 , H02M1/4208 , H02M1/44 , H02M3/33571 , H02M3/33576
Abstract: The invention discloses a power conversion circuit and a power supply device. The power conversion circuit is applied to a power supply device, comprising: an AC/DC conversion circuit, wherein a DC side of the AC/DC conversion circuit has a first reference potential point; a first common-mode inductor; a DC/DC conversion circuit including a primary circuit having a second reference potential point, a secondary circuit and a transformer; wherein a first terminal of the first common-mode inductor is connected to the DC side of the AC/DC conversion circuit, and a second terminal of the first common-mode inductor is connected to the primary circuit of the DC/DC conversion circuit; the first reference potential point or the second reference potential point is connected to an electric field shield.
-
公开(公告)号：US20180159437A1
公开(公告)日：2018-06-07
申请号：US15662301
申请日：2017-07-28
Applicant: Delta Electronics (Shanghai) Co.,Ltd.
Inventor： Haibin SONG , Daofei XU , Jinfa ZHANG , Jian ZHOU , Qi FU , Leyang YANG
CPC classification number: H02M3/33592 , H02M1/083 , H02M2001/0009 , H02M2001/0058
Abstract: The present invention discloses a control method and a control apparatus for a Flyback circuit. The Flyback circuit includes a primary switch, a secondary rectifier unit, a transformer and an output capacitor. The secondary rectifier unit includes a first terminal and a second terminal, which are electrically connected to the transformer and the output capacitor, respectively. In the control method for a Flyback circuit, after the secondary rectifier unit is controlled to be turned on once or twice according to the input voltage and/or output power of the Flyback, the primary switch is turned on to achieve the zero-voltage-switching. According to the invention, the zero-voltage-switching (ZVS) of the primary switch can be achieved under the entire input voltage range and the entire load range without adding additional power devices.
-
公开(公告)号：US20210367508A1
公开(公告)日：2021-11-25
申请号：US17146471
申请日：2021-01-11
Applicant: Delta Electronics (Shanghai) Co., Ltd.
Inventor： Haibin SONG , Jian ZHOU , Qi FU , Daofei XU , Jinfa ZHANG
Abstract: The present invention discloses a power factor correction circuit. The power factor correction circuit includes: a first bridge arm having a first switch and a second switch; a second bridge arm having a third switch and a fourth switch; a first inductor and a second inductor; a first capacitor and/or a second capacitor connected with a common point between the second inductor and the first inductor; and a third capacitor and/or a fourth capacitor, the third capacitor connected in parallel to the third switch based on an arrangement of the second capacitor and having a capacitance value same as that of the second capacitor, the fourth capacitor connected in parallel to the fourth switch based on an arrangement of the first capacitor and having a capacitance value same as that of the first capacitor.
-
公开(公告)号：US20210350973A1
公开(公告)日：2021-11-11
申请号：US17226458
申请日：2021-04-09
Applicant: Delta Electronics (Shanghai) CO., LTD
Inventor： Qi FU , Haibin SONG , Daofei XU , Zengyi LU , Jinfa ZHANG
Abstract: Present disclosure provides a winding assembly and a magnetic element. The winding assembly includes a circuit board with a central hole and a first winding wound around the central hole in the circuit board; the first winding includes N turns of coil on at least two wiring layers; a second end of at least one turn of coil on a first wiring layers is connected to a first end of next turn of coil at corresponding position on a second wiring layer of the circuit board. The magnetic element includes a magnetic core and a winding assembly sleeved on a magnetic leg.
-
Patent Agency Ranking
公开(公告)号：US20210233699A1
公开(公告)日：2021-07-29
申请号：US17216590
申请日：2021-03-29
Applicant: Delta Electronics (Shanghai) Co., Ltd.
Inventor： Haibin SONG , Zengyi LU , Jinfa ZHANG , Shiwei LIU , Jian ZHOU , Daofei XU , Jianwei SONG
Abstract: The present disclosure discloses a PCB winding transformer. The PCB winding transformer includes a magnetic core and a coil board with a multilayer structure. The coil board includes a primary coil and a secondary coil wound around a magnetic core column of the magnetic core. The secondary coil is located in a first layer and a last layer, and the primary coil is located in intermediate layers. The number of turns of the secondary coil is less than that of the primary coil. At least one via hole for connecting the first layer and the last layer of the secondary coil is disposed in the coil board between an inner side of the primary coil and the magnetic core column.
-
公开(公告)号：US20190013628A1
公开(公告)日：2019-01-10
申请号：US15978277
申请日：2018-05-14
Applicant: Delta Electronics (Shanghai) CO., LTD
Inventor： Haitao ZHANG , Daofei XU , Jinfa ZHANG
Abstract: The present disclosure provides a connector protection method in which the connector is used to connect a first device and a second device, and the method includes, a first detection unit of the first device detects a first parameter of the first device; a first controller of the first device obtains a second parameter from the second device through the communication line in the connector; and the first controller determines whether the connector is faulty based on the first parameter and the second parameter.
-
公开(公告)号：US20220349951A1
公开(公告)日：2022-11-03
申请号：US17660212
申请日：2022-04-22
Applicant: Delta Electronics (Shanghai) Co., Ltd.
Inventor： Yunfei LIU , Haibin SONG , Daofei XU , Jinfa ZHANG
Abstract: The present application provides a detecting method of an operating state of a power supply and a detecting apparatus, where the power supply includes a primary circuit, a transformer and a secondary circuit. The secondary circuit includes a secondary current detecting unit, a temperature detecting unit and a secondary controlling unit. Firstly the secondary current detecting unit detects a current value of the secondary circuit, then the secondary controlling unit compares the current value of the secondary circuit with a preset current threshold. When the current value of the secondary circuit is less than or equal to the preset current threshold, the temperature detecting unit detects a temperature value of the power supply and the secondary controlling unit determines the operating state of the power supply according to the acquired temperature value of the power supply.
-
公开(公告)号：US20210350975A1
公开(公告)日：2021-11-11
申请号：US17226521
申请日：2021-04-09
Applicant: Delta Electronics (Shanghai) CO., LTD
Inventor： Qi FU , Haibin SONG , Daofei XU , Zengyi LU , Jinfa ZHANG
IPC: H01F27/28 , H01F27/06 , H01F27/24 , H01F41/061
Abstract: The present invention provides a winding assembly and a magnetic assembly. The winding assembly comprises a first coil and a circuit board, and the first coil is embedded inside the circuit board; wherein the first coil comprises a conductive wire with at least one turn, and a height of the conductive wire in a direction perpendicular to the circuit board is not less than a width of the conductive wire in a direction parallel to the circuit board. The magnetic assembly comprises a first winding assembly and a magnetic core; wherein the first winding assembly comprises a first coil and a first circuit board, and the first coil comprises a conductive wire with at least one turn, the first coil is embedded inside the first circuit board, the first winding assembly is assembled with the magnetic core.
-
公开(公告)号：US20200251272A1
公开(公告)日：2020-08-06
申请号：US16740554
申请日：2020-01-13
Applicant: Delta Electronics (Shanghai) CO., LTD
Inventor： Haibin SONG , Qi FU , Daofei XU , Jinfa ZHANG
Abstract: A magnetic device comprises two base portions and magnetic pillars, wherein each of the two base portions has a first surface and the two first surfaces are faced to each other, and the magnetic pillars are disposed between the two first surfaces along a first direction, wherein, in the first direction, two of the magnetic pillars located at the outermost side of the base portion are a first corner pillar and a second corner pillar respectively, n of the magnetic pillars having the same cross-sectional area and located at the center position of the base portion are n center pillars, and cross-sectional area of the magnetic pillars are gradually increased from the first corner pillar to the center pillar closest to the first corner pillar, and from the second corner pillar to the center pillar closest to the second corner pillar.
-
-
-
-
-
-
-
-
-
Search Results
25
records
(took 0.016 seconds)
