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公开(公告)号：US20210313896A1
公开(公告)日：2021-10-07
申请号：US17348781
申请日：2021-06-16
Applicant: Delta Electronics (Shanghai) Co., Ltd.
Inventor： Hao SUN , Minli JIA , Jinfa ZHANG
Abstract: A control method for a DC/DC converter and a DC/DC converter are provided. The method includes: providing a first primary side driving signal to drive the first switch and the fourth switch, and providing a second primary side driving signal to drive the second switch and the third switch; and providing a fifth signal, a sixth signal, a seventh signal and an eighth signal; where switches of the first secondary side bridge arm or the second secondary side bridge arm are turned on or turned off at a zero crossing point of a primary side current, and a driving signal of the second secondary side bridge arm has a phase shift angle with respect to that of the first secondary side bridge arm and the fifth signal is complementary to the sixth signal, and the seventh signal is complementary to the eighth signal.
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公开(公告)号：US20210296922A1
公开(公告)日：2021-09-23
申请号：US17144184
申请日：2021-01-08
Applicant: Delta Electronics (Shanghai) Co., Ltd.
Inventor： Hao SUN , Minli JIA , Jinfa ZHANG
IPC: H02J7/02
Abstract: The present disclosure provides an on-board charger including a power supply terminal, a switching circuit, a first bridge arm, a second bridge arm, a third bridge arm, a fourth bridge arm, a first bus capacitor, a second bus capacitor, a first switch and a control circuit. The present disclosure can realize a compatibility of a single-phase power supply input or a three-phase power supply input through the cooperation of the switching circuit with the control circuit. Meanwhile, the number of bus capacitors is reduced in the operating state of the single-phase power supply input, accordingly not only the volume and cost of the on-board charger can be reduced, but also the charging power of the on-board charger can be increased, which has an advantage of strong applicability.
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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.
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公开(公告)号：US20200373059A1
公开(公告)日：2020-11-26
申请号：US16992166
申请日：2020-08-13
Applicant: Delta Electronics (Shanghai) CO., LTD
Inventor： Haijun YANG , Zengyi LU , Tianding HONG , Jinfa ZHANG
Abstract: A magnetic dev ice includes a core structure, at least one inductor winding and at least two transformer windings. The core structure includes at least one inductor column and at least two transformer columns. The at least one inductor winding respectively winds around the at least one inductor column. The at least two transformer windings, wind around the at least two transformer columns respectively, and the transformer winding includes primary winding and secondary winding. Wherein the magnetic flax directions on adjacent transformer columns are opposite to each other when providing a current in the corresponding primary windings simultaneously.
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公开(公告)号：US20200287466A1
公开(公告)日：2020-09-10
申请号：US16810876
申请日：2020-03-06
Applicant: Delta Electronics (Shanghai) Co., Ltd.
Inventor： Hao SUN , Minli JIA , Jinfa ZHANG
Abstract: A control method for a DC/DC converter and a DC/DC converter are provided. The method includes: providing a primary side driving signal to drive one or more primary side switches of the primary side circuit; providing a sixth signal, a fifth signal, a seventh signal and an eighth signal, where a phase shift angle exists between the sixth signal and the primary side driving signal, and the sixth signal, the fifth signal, the seventh signal and the eighth signal in turn have a predetermined phase difference; driving a sixth switch, a fifth switch, a seventh switch and an eighth switch according to the sixth signal, the fifth signal, the seventh signal and the eighth signal, respectively; where the switching frequency of the sixth signal, the fifth signal, the seventh signal or the eighth signal is half of the switching frequency of the primary side driving signal.
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Patent Agency Ranking
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.
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公开(公告)号：US20180062495A1
公开(公告)日：2018-03-01
申请号：US15657578
申请日：2017-07-24
Applicant: Delta Electronics (Shanghai) CO., LTD
Inventor： Guojin XU , Guoqiao SHEN , Jinfa ZHANG
IPC: H02M1/00
CPC classification number: H02M1/00 , H02M3/00 , H02M3/158 , H02M2001/0003 , H02M2001/0074
Abstract: A series-parallel converter system includes: a first set of parallel circuitries including a plurality of first circuitries in parallel with each other; a second set of parallel circuitries including a plurality of second circuits in parallel with each other, the second circuit being controlled in a second control method; wherein an input end of the first set of parallel circuitries and an input end of the second set of parallel circuitries are connected in series with an input power supply; and wherein the first circuitry in the first set of parallel circuitries includes: a first circuit being controlled in a first control method; and a first control circuitry electrically connected with the first circuit and configured to generate a first control signal for controlling the first circuit based on a variable intercept compensation, and an input voltage, a first output current and a virtual impedance of the first circuit.
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公开(公告)号：US20170345541A1
公开(公告)日：2017-11-30
申请号：US15600975
申请日：2017-05-22
Applicant: Delta Electronics (Shanghai) CO., LTD
Inventor： Haijun YANG , Zengyi LU , Weilong XIA , Guodong YIN , Jinfa ZHANG
Abstract: A core structure includes a first magnetic cover, a second magnetic cover, and at least two winding columns and at least one common side column provided between the first magnetic cover and the second magnetic cover and opposite to each other. The side wall of the common side column towards the at least two winding columns is provided with at least one first protrusion which extends towards the gap formed between the two adjacent winding columns.
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公开(公告)号：US20250141363A1
公开(公告)日：2025-05-01
申请号：US18920952
申请日：2024-10-20
Applicant: Delta Electronics (Shanghai) CO., LTD.
Inventor： Yuesen GUO , Shiwei LIU , Jun ZHANG , Kai DONG , Haijun YANG , Jinfa ZHANG , Chang XU
Abstract: The present disclosure provides a rectifier module and a transformer, the rectifier module includes a transformer and a rectifier board, the transformer includes: a magnetic core; a first winding; and a second winding, the magnetic core includes a magnetic column, the first winding is arranged on the magnetic column, and the second winding is arranged outside the first winding; comb-type pins are respectively arranged on opposite sides of the second winding, the comb-type pins are arranged along a first direction, and the comb-type pins include comb teeth and comb gaps; the rectifier board includes: a circuit board; and a plurality of switch element groups arranged along the first direction, the switch element group includes at least one switch element; along the second direction, the comb teeth are adjacent to the switch element; the first direction and the second direction are perpendicular to each other.
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公开(公告)号：US20250070672A1
公开(公告)日：2025-02-27
申请号：US18237143
申请日：2023-08-23
Applicant: Delta Electronics (Shanghai) Co.,Ltd.
Inventor： Litao XIA , Xinmin BAI , Jinfa ZHANG , Bo WEN , Zhiyu SHEN , PETER MANTOVANELLI BARBOSA
Abstract: The invention discloses a non-isolated DC/DC power converter and a power conversion apparatus. The non-isolated DC/DC power converter comprises a power module comprising a first power conversion circuit, the first power conversion circuit being a non-isolated DC/DC conversion circuit, a first output end of the first power conversion circuit is connected with a first inductor, and a second output end of the first power conversion circuit is connected with a second inductor; and an oscillation suppression module comprising a second power conversion circuit, a first terminal of the second power conversion circuit coupled in parallel to an input end of the first power conversion circuit, a first terminal current of the second power conversion circuit being in phase with at least partial of AC components of an input voltage of the oscillation suppression module, and the second power conversion circuit being a bidirectional DC/DC conversion circuit.
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