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公开(公告)号：US11496064B2
公开(公告)日：2022-11-08
申请号：US17244576
申请日：2021-04-29
Applicant: Delta Electronics, Inc.
Inventor： Da Jin , Yahong Xiong , Qinghua Su
Abstract: A resonant converter and a manufacturing method of a transformer thereof are provided. The resonant converter includes a full bridge circuit, an element, a first branch circuit, a second branch circuit and a secondary winding. The full bridge circuit includes a first node and a second node. The element includes an inductor or a capacitor. The first branch circuit includes a first primary winding. The second branch circuit includes a second primary winding, and the first and second primary windings have the same turn number. The transformer is constructed by the first and second primary windings and the secondary winding. The first branch circuit, the element and the second branch circuit are sequentially coupled in series between the first and second nodes. The first branch circuit and the second branch circuit are symmetrically located with respect to the element. The first and second branch circuits have the same impedance.
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公开(公告)号：US11439017B2
公开(公告)日：2022-09-06
申请号：US17198779
申请日：2021-03-11
Applicant: Delta Electronics, Inc.
Inventor： Yahong Xiong , Da Jin , Qinghua Su
Abstract: A voltage regulator module includes a first circuit board assembly, a second circuit board assembly and a magnetic core assembly. The first circuit board assembly includes a first printed circuit board. The second circuit board assembly includes a second printed circuit board, at least one output capacitor, a plurality of ball grid arrays and at least one bonding pad. The second printed circuit board includes a first surface and a second surface. The plurality of ball grid arrays are disposed on the second surface of the second printed circuit board. The at least one bonding pad is arranged beside the first surface of the second printed circuit board. The magnetic core assembly is arranged between the first circuit board assembly and the second circuit board assembly and electrically connected with the at least one bonding pad. The at least one output capacitor is embedded within the second circuit board assembly.
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公开(公告)号：US11437915B2
公开(公告)日：2022-09-06
申请号：US17339139
申请日：2021-06-04
Applicant: Delta Electronics, Inc.
Inventor： Da Jin , Dongjie Gu , Xueliang Chang , Shengli Lu
Abstract: A converter includes a first end, a second end, a first side and a second side switching circuits and a transformer. The first end includes a first positive terminal and a first negative terminal. The second end includes a second positive terminal and a second negative terminal. The first side switching circuit is coupled to the first end and includes a first bridge arm and a second bridge arm. Two terminals of the first bridge arm are coupled to the first positive terminal and the first negative terminal respectively. Two terminals of the second bridge arm are coupled to the first positive terminal and the second positive terminal respectively. The transformer includes a first side winding coupled to the first side switching circuit and a second side winding coupled to the second side switching circuit. The turns ratio of the first side winding and the second side winding is N:1.
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公开(公告)号：US20220209661A1
公开(公告)日：2022-06-30
申请号：US17553495
申请日：2021-12-16
Applicant: Delta Electronics, Inc.
Inventor： Da Jin , Yahong Xiong , Qinghua Su
IPC: H02M3/155
Abstract: The present disclosure provides a power conversion device including an input end having positive and negative input terminals, two bridge arms, two transformers and an output capacitor. Each bridge arm is connected to the input end in parallel, and includes three switches coupled in series. Two terminals of one switch are electrically connected to the positive input terminal and a primary node respectively. Two terminals of another switch are electrically connected to the negative input terminal and a secondary node respectively. Each transformer includes primary and secondary windings coupled to each other. Two primary windings are serially coupled between two primary nodes. Two secondary windings are serially coupled between two secondary nodes. Two terminals of the output capacitor are electrically connected to output positive and negative terminals respectively. The positive output terminal is coupled between the secondary windings, and the negative output terminal is coupled to the negative input terminal.
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公开(公告)号：US20220131469A1
公开(公告)日：2022-04-28
申请号：US17461552
申请日：2021-08-30
Applicant: Delta Electronics, Inc.
Inventor： Da Jin , Dongjie Gu , Mingyun Yang , Xueliang Chang
IPC: H02M3/335 , H02M7/5395 , H05K1/16 , H02M1/00
Abstract: A power converter module includes a multilayer printed circuit board, a switching device, a controlling device and a capacitor device. The switching device includes two switching circuit combinations. Each of the switching circuit combinations includes two switching circuits connected in parallel. Each of the switching circuits includes a switching unit. The controlling device is configured for outputting a first control signal and a second control signal to control the switching circuits of the first switching circuit combination and the switching circuits of the second switching circuit combination respectively. The first control signal and the second control signal are out of phase with each other. On a direction, the switching units of the first switching circuit combinations and the switching units of the second switching circuit combinations are alternately arranged, each of a plurality of capacitors of the capacitor device is neighboring to the two adjacent switching units.
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Patent Agency Ranking
公开(公告)号：US11134571B2
公开(公告)日：2021-09-28
申请号：US16887026
申请日：2020-05-29
Applicant: Delta Electronics, Inc.
Inventor： Da Jin , Yahong Xiong , Junguo Cui , Qinghua Su
IPC: H05K7/10 , H05K7/12 , H05K1/18 , H02M3/04 , H05K1/11 , H05K1/14 , H01F27/24 , H01F27/28 , H02M3/28 , H02M7/00 , H02M7/217 , H02M3/158
Abstract: A voltage regulator module includes a first circuit board, a switching circuit and a second circuit board. The switching circuit is disposed on a first surface of the first circuit board. A first contact pad is disposed on a second surface of the first circuit board. The switching circuit is connected with the contact pad through a conductive hole of the first circuit board. A first surface of the second circuit board is in contact with the first surface of the first circuit board. The first surface of the second circuit board includes a second contact pad. The second contact pad is fixed on the corresponding first contact pad. A second surface of the second circuit board includes a conductive pad. The conductive pad is connected with the corresponding second contact pad through a conductive hole of the second circuit board. The conductive pad is connected with a system board.
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公开(公告)号：US11114946B2
公开(公告)日：2021-09-07
申请号：US16810544
申请日：2020-03-05
Applicant: Delta Electronics, Inc.
Inventor： Yahong Xiong , Shaojun Chen , Da Jin , Qinghua Su
Abstract: A voltage regulator module includes a circuit board assembly and a magnetic core assembly. The circuit board assembly includes a printed circuit board and at least one switch element. A first concave structure is concavely formed on a second surface of the printed circuit board. At least one protrusion post is disposed within the first concave structure. A pin as a positive output terminal, a pin as a positive input terminal and a pin as a negative output terminal are disposed on the second surface of the printed circuit board. The switch element is disposed on a first surface of the printed circuit board. The magnetic core assembly is accommodated within the first concave structure, and includes at least one opening. The protrusion post is penetrated through the corresponding opening. Consequently, at least one inductor is defined by the at least one protrusion post and the magnetic core assembly collaboratively.
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公开(公告)号：US11070135B2
公开(公告)日：2021-07-20
申请号：US16578405
申请日：2019-09-23
Applicant: DELTA ELECTRONICS, INC.
Inventor： Da Jin , Ya-Hong Xiong , Qing-Hua Su
Abstract: A converter includes an input capacitor, a primary-side switch circuit, a transformer, an inductor, a secondary-side switch circuit, and an output capacitor. The primary-side switch circuit includes a first and a second bridge arm. Each of the first and the second bridge arm includes at least two switches. A soft-start period of an output voltage from the converter includes a voltage rising period of the output voltage. A turn-on time of one of the at least two switches of the first bridge arm is less than ½ of a switching period. A turn-on time of one of the at least two switches of the second bridge arm is zero of the switching period or near zero of the switching period. The inductor and parasitic capacitors of the at least two switches of the second bridge arm oscillate, and energy generated from an oscillation is transmitted to the second-side switch circuit.
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公开(公告)号：US11063522B2
公开(公告)日：2021-07-13
申请号：US16776464
申请日：2020-01-29
Applicant: DELTA ELECTRONICS, INC.
Inventor： Da Jin , Xue-Liang Chang , Ya-Hong Xiong , Qing-Hua Su
Abstract: A converter includes an input capacitor, a primary-side switching circuit, a magnetic element circuit, a secondary-side switching circuit, and an output capacitor. Primary-side switching circuit includes a first positive voltage terminal and a first negative voltage terminal. First positive voltage terminal is coupled to one terminal of an input voltage. First negative voltage terminal and first positive voltage terminal are coupled to the input capacitor. Magnetic element circuit is coupled to primary-side switching circuit. Secondary-side switching circuit is coupled to magnetic element circuit. Secondary-side switching circuit includes a second positive voltage terminal and a second negative voltage terminal. Second positive voltage terminal is coupled to first negative voltage terminal. Second negative voltage terminal is coupled to another terminal of the input voltage, and second negative voltage terminal and second positive voltage terminal output an output voltage together. Output capacitor is coupled to secondary-side switching circuit.
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公开(公告)号：US20200305285A1
公开(公告)日：2020-09-24
申请号：US16810406
申请日：2020-03-05
Applicant: Delta Electronics, Inc.
Inventor： Yahong Xiong , Shaojun Chen , Da Jin , Qinghua Su
Abstract: A voltage regulator module includes a circuit board assembly, a magnetic core assembly and a molding compound layer. The circuit board assembly includes a printed circuit board and at least one switch element. The switch element is disposed on a first surface of the printed circuit board. Moreover, at least one first copper post, at least one second copper post, at least one third copper post and the magnetic core assembly are disposed on a second surface of the printed circuit board. The magnetic core assembly includes at least one opening. The at least one first copper post is penetrated through the corresponding opening, so that at least one inductor is defined by the at least one first copper post and the magnetic core assembly collaboratively. The molding compound layer encapsulates the printed circuit board and the magnetic core assembly in a double-sided molding manner.
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