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公开(公告)号：US11777413B2
公开(公告)日：2023-10-03
申请号：US17346681
申请日：2021-06-14
Applicant: DELTA ELECTRONICS, INC.
Inventor： Laszlo Huber , Tomas Sadilek , Misha Kumar , Zhiyu Shen , Jinfa Zhang , Chia-Hsiong Huang , Peter Mantovanelli Barbosa
CPC classification number: H02M3/33584 , H02M1/0095 , H02M1/08 , H03M3/39 , H02M3/1584 , H02M3/33523
Abstract: A DC/DC converter may be formed out of the combination of a first converter that is optimized to transfer energy from a voltage source to a load, and a second converter that receives a control signal derived from the load voltage to regulate the load voltage. The DC/DC converter may be configured as a sigma converter, a delta converter, or a sigma-delta converter. The mode of operation being selected according to the source voltage or the load voltage, either of which may vary over a wide range.
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公开(公告)号：US11923767B2
公开(公告)日：2024-03-05
申请号：US18163960
申请日：2023-02-03
Applicant: Delta Electronics, Inc.
Inventor： Chi Zhang , Zhiyu Shen , Yungtaek Jang , Sheng-Hua Li , Ruxi Wang , Peter Mantovanelli Barbosa
CPC classification number: H02M1/4216 , H02M1/12 , H02M7/2173 , H02M7/219 , H02M7/2195 , H02M7/23
Abstract: The present disclosure provides a three-phase AC/DC converter aiming for low input current harmonic. The converter includes an input stage for receiving a three-phase AC input voltage, an output stage for at least one load, and one or more switching conversion stages, each stage including a plurality of half bridge modules. The switches in each module operate with a substantially fixed 50% duty cycle and are connected in a specific pattern to couple a DC-link and a neutral node of the input voltage. The AC/DC converter further includes one or more controllers adapted to vary the switching frequency of the switches in the switching conversion stages based on at least one of load voltage, load current, input voltage, and DC-link voltage. The converter can also include one or more decoupling stages, such as, inductive components adapted to decouple the output stage from the switching conversion stages.
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Patent Agency Ranking
公开(公告)号：US20210408927A1
公开(公告)日：2021-12-30
申请号：US17363129
申请日：2021-06-30
Applicant: Delta Electronics, Inc.
Inventor： Chi Zhang , Zhiyu Shen , Ruxi Wang , Peter Mantovanelli Barbosa
Abstract: The present disclosure provides a series resonant converter and its corresponding control method. In one aspect, the series resonant converter includes m (m=1,2,3, . . . ) sets of primary side stages in parallel, wherein each primary side stage is identical and includes n (n=2,3, . . . ) stacked element circuits, where the primary side stages receive an input voltage; n×m resonant networks coupled to the primary side stages; n×m transformers having n×m primary side windings and n×m secondary side windings, where the primary side windings are coupled to the n×m resonant networks; p (p=1,2,3, . . . ) sets of secondary side stages in parallel, wherein each secondary side stage is identical and includes q (q=n×m/p) stacked element circuits, where the secondary side stages are coupled to n×m secondary side windings; and a control block controlling the primary side switches according to the output voltage, input voltage and input capacitor voltages.
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公开(公告)号：US11799370B2
公开(公告)日：2023-10-24
申请号：US17363129
申请日：2021-06-30
Applicant: Delta Electronics, Inc.
Inventor： Chi Zhang , Zhiyu Shen , Ruxi Wang , Peter Mantovanelli Barbosa
CPC classification number: H02M1/0074 , H02M3/01 , H02M3/33571 , H02M3/33592 , H02M1/0058 , H02M3/33573
Abstract: The present disclosure provides a series resonant converter and its corresponding control method. In one aspect, the series resonant converter includes m (m=1,2,3, . . . ) sets of primary side stages in parallel, wherein each primary side stage is identical and includes n (n=2,3, . . . ) stacked element circuits, where the primary side stages receive an input voltage; n×m resonant networks coupled to the primary side stages; n×m transformers having n×m primary side windings and n×m secondary side windings, where the primary side windings are coupled to the n×m resonant networks; p (p=1,2,3, . . . ) sets of secondary side stages in parallel, wherein each secondary side stage is identical and includes q (q=n×m/p) stacked element circuits, where the secondary side stages are coupled to n×m secondary side windings; and a control block controlling the primary side switches according to the output voltage, input voltage and input capacitor voltages.
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公开(公告)号：US11601042B2
公开(公告)日：2023-03-07
申请号：US17209073
申请日：2021-03-22
Applicant: Delta Electronics, Inc.
Inventor： Chi Zhang , Zhiyu Shen , Yungtaek Jang , Sheng-Hua Li , Ruxi Wang , Peter Mantovanelli Barbosa
Abstract: The present disclosure provides a three-phase AC/DC converter aiming for low input current harmonic. The converter includes an input stage for receiving a three-phase AC input voltage, an output stage for at least one load, and one or more switching conversion stages, each stage including a plurality of half bridge modules. The switches in each module operate with a substantially fixed 50% duty cycle and are connected in a specific pattern to couple a DC-link and a neutral node of the input voltage. The AC/DC converter further includes one or more controllers adapted to vary the switching frequency of the switches in the switching conversion stages based on at least one of load voltage, load current, input voltage, and DC-link voltage. The converter can also include one or more decoupling stages, such as, inductive components adapted to decouple the output stage from the switching conversion stages.
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公开(公告)号：US11652396B2
公开(公告)日：2023-05-16
申请号：US17363119
申请日：2021-06-30
Applicant: Delta Electronics, Inc.
Inventor： Chi Zhang , Zhiyu Shen , Ruxi Wang , Peter Mantovanelli Barbosa
CPC classification number: H02M3/33573 , H02M1/0058 , H02M3/01 , H02M3/33592
Abstract: The present disclosure provides a series resonant converter and its corresponding control method. In one aspect, the series resonant converter includes m (m=1, 2, 3, . . . ) sets of primary side stages in parallel, wherein each primary side stage is identical and includes n (n=2, 3, . . . ) stacked element circuits, where the primary side stages receive an input voltage; n×m resonant networks coupled to the primary side stages; n×m transformers having n×m primary side windings and n×m secondary side windings, where the primary side windings are coupled to the n×m resonant networks; p (p=1, 2, 3, . . . ) sets of secondary side stages in parallel, wherein each secondary side stage is identical and includes q (q=n×m/p) stacked element circuits, where the secondary side stages are coupled to n×m secondary side windings; and a control block controlling the primary side switches according to the output voltage, input voltage and input capacitor voltages.
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公开(公告)号：US20220149744A1
公开(公告)日：2022-05-12
申请号：US17346681
申请日：2021-06-14
Applicant: DELTA ELECTRONICS, INC.
Inventor： Laszlo Huber , Tomas Sadilek , Misha Kumar , Zhiyu Shen , Jinfa Zhang , Chia-Hsiong Huang , Peter Mantovanelli Barbosa
Abstract: A DC/DC converter may be formed out of the combination of a first converter that is optimized to transfer energy from a voltage source to a load, and a second converter that receives a control signal derived from the load voltage to regulate the load voltage. The DC/DC converter may be configured as a sigma converter, a delta converter, or a sigma-delta converter. The mode of operation being selected according to the source voltage or the load voltage, either of which may vary over a wide range.
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