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公开(公告)号：US10886912B2
公开(公告)日：2021-01-05
申请号：US16391436
申请日：2019-04-23
Applicant: Delta Electronics,Inc.
Inventor： Jianping Ying , Ming Wang , Xiaobo Huang , Jun Liu
Abstract: The present disclosure provides a gate circuit and a gate drive circuit for a power semiconductor switch, including: a zener diode and a charge dissipation circuit. A first end of the zener diode is connected to a first end of the charge dissipation circuit and a gate of the power semiconductor switch, a second end of the zener diode is connected to a second end of the charge dissipation circuit and a second end of the power semiconductor switch. A first parasitic capacitor is formed between a first end and the gate of the power semiconductor switch, and a second parasitic capacitor is formed between the gate and the second end of the power semiconductor switch.
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公开(公告)号：US20140111959A1
公开(公告)日：2014-04-24
申请号：US13839032
申请日：2013-03-15
Applicant: DELTA ELECTRONICS, INC.
Inventor： Yan Li , Hongjian Gan , Senlin Wen , Jianping Ying
IPC: H05K7/02
CPC classification number: H05K7/026 , H02M7/003 , H02M7/487 , H02M2001/348
Abstract: The present application discloses a laminated busbar arrangement for use in a three-level power converter and a power converter. The laminated busbar arrangement comprises a first layer of busbar comprising a neutral-point sub busbar congfigured to make electrical connections between respective components in the three-level power converter and a neutral-point potential; a second layer of busbar comprising a plurality of sub busbars congfigured to make electrical connections between the respective components in the three-level power converter and a positive direct current (DC) input, a negative DC input and an alternating current (AC) input/output in the three-level power converter, and between respective semiconductor switching components. The present application may effectively reduce stray inductance.
Abstract translation: 本申请公开了一种用于三电平功率转换器和功率转换器的层叠母线装置。 叠层母线装置包括第一层母线，其包括中和点副汇流排，该中间点副母线配置成在三电平功率转换器中的各个组件之间进行电连接和中性点电位; 第二层母线包括多个子母线，其被配置为在三电平功率转换器中的各个部件之间进行电连接，以及正直流（DC）输入，负DC输入和交流（AC）输入/ 输出在三电平电力转换器中，以及各个半导体开关元件之间。 本申请可以有效地减少杂散电感。
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公开(公告)号：US11250987B2
公开(公告)日：2022-02-15
申请号：US15876424
申请日：2018-01-22
Applicant: Delta Electronics,Inc.
Inventor： Jianxing Dong , Jianping Ying , Teng Liu
Abstract: A transformer includes a magnetic core, a first winding and at least one second winding. The magnetic core has a window through which the first winding passes through without contacting the magnetic core. The second winding passes through the window of the magnetic core and is wound on the magnetic core. The second winding has a distance from the first winding, and the second winding has a first insulating part disposed on an outer surface of the second winding facing the first winding.
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公开(公告)号：US11502507B2
公开(公告)日：2022-11-15
申请号：US16361929
申请日：2019-03-22
Applicant: Delta Electronics,Inc.
Inventor： Peng Xiao , Hongwei Xiao , Hongjian Gan , Jianping Ying
Abstract: A ground fault detection method for a power converter is provided, including: measuring, by a voltage sensor, a first voltage and a second voltage respectively, and converting the first voltage and the second voltage into a first digital voltage signal and a second digital voltage signal; receiving, by a controller, the first digital voltage signal and the second digital voltage signal, extracting a corresponding feature quantity of the first voltage and a corresponding feature quantity of the second voltage according to the first digital voltage signal and the second digital voltage signal; and further determining a type of the ground fault of the power converter and locating a ground fault; and when the power converter has a ground fault, shutting down the power converter.
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公开(公告)号：US10587258B2
公开(公告)日：2020-03-10
申请号：US16445483
申请日：2019-06-19
Applicant: Delta Electronics, Inc.
Inventor： Jianping Ying , Ming Wang , Xiaobo Huang , Jun Liu , Zhiming Hu
IPC: H03K17/082 , H03K17/61 , H03K17/567
Abstract: A drive circuit of a power semiconductor switch includes: a pulse modulation circuit having a first terminal configured to receive a fault signal, an isolation transformer, and a pulse demodulation circuit; when there is no fault signal being received, the pulse modulation circuit outputs a first turn on pulse signal and a first turn off pulse signal via the isolation transformer and the pulse demodulation circuit to charge/discharge a gate capacitor of the power semiconductor switch, so as to drive the power semiconductor switch to be turned on and turned off at a first speed; when the fault signal is received, the pulse modulation circuit outputs a second turn off pulse signal via the isolation transformer and the pulse demodulation circuit to discharge the gate capacitor of the power semiconductor switch, so as to drive the power semiconductor switch to be turned off at a second speed.
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Patent Agency Ranking
公开(公告)号：US10153706B2
公开(公告)日：2018-12-11
申请号：US15805273
申请日：2017-11-07
Applicant: Delta Electronics, Inc.
Inventor： Jianping Ying , Teng Liu , Yi Zhang , Yong Zeng
Abstract: The present disclosure provides a precharge device and a frequency converter. The precharge device is applied in a flying capacitor type multi-level converter circuit, and the multi-level converter circuit includes: a flying capacitor, a bus capacitor, a first and second semiconductor components, wherein the first semiconductor component is electrically connected between a first end of the flying capacitor and a first end of the bus capacitor, and the second semiconductor component is electrically connected between a second end of the flying capacitor and a second end of the bus capacitor; and the precharge device includes: an AC source; and an auxiliary circuit electrically connected with the AC source, wherein the auxiliary circuit reuses the first and second semiconductor components, and the AC source charges the flying capacitor and the bus capacitor through the auxiliary circuit.
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公开(公告)号：US11037723B2
公开(公告)日：2021-06-15
申请号：US15876272
申请日：2018-01-22
Applicant: Delta Electronics, Inc.
Inventor： Jianxing Dong , Jianping Ying , Teng Liu
Abstract: A transformer includes a magnetic core, a first winding and at least one second winding. The magnetic core has a window through which the first winding passes through without contacting the magnetic core. The second winding passes through the window of the magnetic core and is wound on the magnetic core. The second winding has a distance from the first winding, and a semi-conductive part is disposed between the second winding and the magnetic core. The present disclosure can effectively lower the risk of partial discharge between the second winding and the magnetic core, and thus the transformer of the present disclosure has high reliability.
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公开(公告)号：US10991504B2
公开(公告)日：2021-04-27
申请号：US15992329
申请日：2018-05-30
Applicant: Delta Electronics, Inc.
Inventor： Jianxing Dong , Yong Zeng , Teng Liu , Jianping Ying
Abstract: A magnetic assembly includes a magnetic core and a winding. The magnetic core comprises an upper cover, a lower cover and at least one core column provided between the upper cover and the lower cover, the core column presents a prismatic shape and has at least two lateral surfaces, the lateral surfaces intersect with each other to form at least two longitudinal ridges, and the longitudinal ridge extends along the longitudinal direction of the core column. The winding, winding around the core column, a first semi-conductive component is provided between the core column and the winding at the position corresponding to the longitudinal ridge.
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公开(公告)号：US10727664B2
公开(公告)日：2020-07-28
申请号：US16410151
申请日：2019-05-13
Applicant: Delta Electronics, Inc.
Inventor： Teng Liu , Yong Zeng , Jianping Ying , Ming Wang , Xiaobo Huang , Jun Liu
Abstract: The present disclosure provides a temperature protection circuit for a power converter, including a plurality of temperature protection branches, each of the temperature protection branches comprises a resistor, a voltage source, a temperature switch, and an isolation transformer, and each of the temperature protection branches corresponds to one of the power semiconductor switch blocks, and a first end of the resistor of each of the temperature protection branches is coupled to an output electrode of the power semiconductor switch block, and a second end of the resistor is coupled to a first end of the voltage source and coupled to a first end of the contact of the temperature switch via a primary winding of the isolation transformer, a second end of the voltage source and a second end of the contact of the temperature switch are respectively coupled to the potential midpoint of the power converter.
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公开(公告)号：US09538680B2
公开(公告)日：2017-01-03
申请号：US13839032
申请日：2013-03-15
Applicant: DELTA ELECTRONICS, INC.
Inventor： Yan Li , Hongjian Gan , Senlin Wen , Jianping Ying
CPC classification number: H05K7/026 , H02M7/003 , H02M7/487 , H02M2001/348
Abstract: The present application discloses a laminated busbar arrangement for use in a three-level power converter and a power converter. The laminated busbar arrangement comprises a first layer of busbar comprising a neutral-point sub busbar configured to make electrical connections between respective components in the three-level power converter and a neutral-point potential; a second layer of busbar comprising a plurality of sub busbars configured make electrical connections between the respective components in the three-level power converter and a positive direct current (DC) input, a negative DC input and an alternating current (AC) input/output in the three-level power converter, and between respective semiconductor switching components. The present application may effectively reduce stray inductance.
Abstract translation: 本申请公开了一种用于三电平功率转换器和功率转换器的层叠母线装置。 层压母线装置包括第一层母线，其包括中性点副汇流排，其被配置为在三电平功率转换器中的各个组件之间进行电连接，以及中性点电位; 包括多个副母线的第二层母线构成在三电平功率转换器中的相应部件之间进行电连接，以及正直流（DC）输入，负DC输入和交流（AC）输入/输出 在三电平功率转换器中以及各个半导体开关元件之间。 本申请可以有效地减少杂散电感。
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