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公开(公告)号：US11601066B2
公开(公告)日：2023-03-07
申请号：US17395923
申请日：2021-08-06
Applicant: DELTA ELECTRONICS, INC.
Inventor： Hung-Chieh Lin , Yi-Ping Hsieh , Jin-Zhong Huang , Hung-Yu Huang , Chih-Hsien Li
Abstract: A conversion apparatus with a three-level switching circuit includes a DC conversion module, a three-level circuit, and a control unit. The three-level circuit includes a bridge arm assembly and a capacitor assembly. The capacitor assembly includes a first capacitor and a second capacitor connected to the first capacitor in series. The DC conversion module has a positive output end and a negative output end, and the positive output end and the negative output end are coupled to the bridge arm assembly. The control unit controls the switching of a second switch unit and a third switch unit to make the three-level circuit operate in a first state where the positive output end and the negative output end are connected to the first capacitor, and operate in a second state where the positive output end and the negative output end are connected to the second capacitor.
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公开(公告)号：US10734835B2
公开(公告)日：2020-08-04
申请号：US16052914
申请日：2018-08-02
Applicant: DELTA ELECTRONICS, INC.
Inventor： Chao-Li Kao , Hung-Chieh Lin , Chao-Lung Kuo , Yi-Ping Hsieh , Jin-Zhong Huang , Po-Hsin Tseng
Abstract: A power bypass apparatus with a current-sharing function includes at least two bypass switch assemblies and a control unit. Each bypass switch assembly includes a controllable switch, a cooling unit, and a temperature detection unit. Each the temperature detection unit, correspondingly disposed to a heat-dissipating unit, detects a temperature value of the controllable switch to produce a temperature detection signal. The control unit receives the temperature detection signals and outputs at least two switch control signals to control at least one of the controllable switches or outputs at least two cooling unit control signals to control at least one of the cooling units, thus making currents flowing through the controllable switches identical. Accordingly, it is to increase overall efficiency of a power system and implement current-sharing function of the power system providing high power.
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公开(公告)号：US11967898B2
公开(公告)日：2024-04-23
申请号：US17569885
申请日：2022-01-06
Applicant: DELTA ELECTRONICS, INC.
Inventor： Hung-Chieh Lin , Yi-Ping Hsieh , Jin-Zhong Huang , Hung-Yu Huang , Chih-Hsien Li , Ciao-Yin Pan
CPC classification number: H02M3/155 , H02M1/0058 , H02M3/158 , H02M7/53871 , H02M1/42 , H02M7/4815
Abstract: A soft-switching power converter includes a main switch, an energy-releasing switch, and an inductive coupled unit. The main switch is a controllable switch. The energy-releasing switch is coupled to the main switch. The inductive coupled unit is coupled to the main switch and the energy-releasing switch. The inductive coupled unit includes a first inductance, a second inductance coupled to the first inductance, and an auxiliary switch unit. The auxiliary switch unit is coupled to the second inductance to form a closed loop. The main switch and the energy-releasing switch are alternately turned on and turned off. The auxiliary switch unit is controlled to start turning on before the main switch is turned on so as to provide at least one current path.
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公开(公告)号：US11088629B2
公开(公告)日：2021-08-10
申请号：US16867242
申请日：2020-05-05
Applicant: DELTA ELECTRONICS, INC.
Inventor： Hung-Chieh Lin , Chao-Li Kao , Yi-Ping Hsieh , Jin-Zhong Huang , Chao-Lung Kuo , Hung-Yu Huang , Chih-Hsien Li
IPC: H02M3/335
Abstract: An isolated converter with high boost ration includes a transformer, a first bridge arm, a second bridge arm, and a boost circuit. The transformer includes a secondary side having a secondary side first node and a secondary side second node. The first bridge arm includes a first diode and a second diode. The second bridge arm includes a third diode and a fourth diode. The boost circuit includes at least one fifth diode coupled between the first bridge arm and the secondary side second node, at least one sixth diode coupled between the second bridge arm and the secondary side first node, and at least two capacitors coupled to the secondary side first node and the secondary side second node.
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公开(公告)号：US11081968B2
公开(公告)日：2021-08-03
申请号：US16698764
申请日：2019-11-27
Applicant: DELTA ELECTRONICS, INC.
Inventor： Hung-Chieh Lin , Chao-Li Kao , Yi-Ping Hsieh , Jin-Zhong Huang , Chao-Lung Kuo , Hung-Yu Huang , Chih-Hsien Li
IPC: H02M3/335
Abstract: An isolated boost converter includes a transformer, a first bridge arm, a second bridge arm, and a boost circuit. The transformer includes a secondary side having a secondary side first contact and a secondary side second contact. The boost circuit includes two diodes—anodes of the two diodes are mutually coupled to a first contact and cathodes of the two diodes are coupled to a first bridge arm upper contact and a second bridge arm upper contact, two diodes—cathodes of the two diodes are mutually coupled to a second contact and anodes of the two diodes are coupled to a first bridge arm lower contact and a second bridge arm lower contact, the second contact is coupled to the first contact, and at least two capacitors are coupled to the secondary side first contact and the secondary side second contact.
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Patent Agency Ranking
公开(公告)号：US12132400B2
公开(公告)日：2024-10-29
申请号：US18411905
申请日：2024-01-12
Applicant: DELTA ELECTRONICS, INC.
Inventor： Hung-Chieh Lin , Yi-Ping Hsieh , Jin-Zhong Huang , Hung-Yu Huang , Chih-Hsien Li , Ciao-Yin Pan
CPC classification number: H02M3/155 , H02M1/0058 , H02M3/158 , H02M7/53871 , H02M1/42 , H02M7/4815
Abstract: A soft-switching power converter includes a main switch, an energy-releasing switch, and an inductive coupled unit. The main switch is a controllable switch. The energy-releasing switch is coupled to the main switch. The inductive coupled unit is coupled to the main switch and the energy-releasing switch. The inductive coupled unit includes a first inductance, a second inductance coupled to the first inductance, and an auxiliary switch unit. The auxiliary switch unit is coupled to the second inductance to form a closed loop. The main switch and the energy-releasing switch are alternately turned on and turned off. The auxiliary switch unit is controlled to start turning on before the main switch is turned on so as to provide at least one current path.
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公开(公告)号：US11205956B2
公开(公告)日：2021-12-21
申请号：US16267881
申请日：2019-02-05
Applicant: DELTA ELECTRONICS, INC.
Inventor： Hung-Chieh Lin , Chao-Li Kao , Yi-Ping Hsieh , Jin-Zhong Huang , Po-Hsin Tseng , Chih-Hsien Li , Hung-Yu Huang
Abstract: A power converter with a common DC power source includes a DC power source and at least two power modules. Each of the power modules is coupled with each other and coupled to the DC power source. Each of the power module includes a coupled inductive component coupled to the DC power source, a DC output conversion unit coupled to the coupled inductive component, and a capacitor group having a coupling point. By using the coupled inductive component, it is to solve the problem of return current between the power modules caused by coupling multiple coupling points to each other.
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公开(公告)号：US10674640B1
公开(公告)日：2020-06-02
申请号：US16264621
申请日：2019-01-31
Applicant: Delta Electronics, Inc.
Inventor： Chao-Li Kao , Jin-Zhong Huang , Yi-Ping Hsieh , Chang-Ye Li
Abstract: An electronic device with heat sink is provided. The heat sink includes a base and fins. One side of the base has a first placement plane and a second placement plane. The electronic device includes a circuit board, a power module and transistors. The power module includes a power body and soldering legs, and the power body is attached to the first placement plane. The transistor has a transistor body and pins, and the transistor body is attached to the second placement plane. The circuit board is disposed at one side of the base formed with the first placement plane, and soldering legs of the power module and pins of the transistor are inserted on the circuit board. Thereby the heat sinks and the space which the circuit board occupied will be reduced for increasing the power density of the heat sink.
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公开(公告)号：US09960699B2
公开(公告)日：2018-05-01
申请号：US15682568
申请日：2017-08-22
Applicant: DELTA ELECTRONICS, INC.
Inventor： Yi-Ping Hsieh , Hung-Chieh Lin , Chao-Lung Kuo , Jin-Zhong Huang , Po-Hsin Tseng
IPC: H02M5/458
CPC classification number: H02M5/4585 , H02M1/32 , H02M7/23 , H02M7/493 , H02M2001/0009
Abstract: A power converting device includes a first and a second power module electrically coupled in parallel, a loop current limiting circuit and a driving circuit. A first and a second terminal of the loop current limiting circuit are coupled to the first and the second power module respectively. A third and a fourth terminal of the loop current limiting circuit are coupled to each other. The loop current limiting circuit includes a coupled differential-mode inductor, a first inductive unit and a second inductive unit. A first winding and a second winding of the coupled differential-mode inductor are coupled to the first and the second power modules respectively. The first and the second inductive units are coupled to the first and the second power modules respectively. The driving circuit is configured to output a driving signal to the first and the second power module according to a current detecting signal.
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公开(公告)号：US20250112548A1
公开(公告)日：2025-04-03
申请号：US18518268
申请日：2023-11-22
Applicant: Delta Electronics, Inc.
Inventor： Hung-Chieh Lin , Yi-Ping Hsieh , Hsin-Chih Chen , Hung-Yu Huang , Jin-Zhong Huang
IPC: H02M3/07
Abstract: A power converter and a power conversion method are provided and capable of bus capacitor voltage balance based on inherent inductor components of the power converter. Compared with the conventional approach that adds a balance circuit, the power converter and the power conversion method can reduce a size of overall circuit and improve a power density. In addition, two relays of the power converter are configured to switch switching states such that two inductors store or release energy, thereby transmitting electrical energy between two bus capacitors and two load capacitors. The power converter and the power conversion method are able to realize energy balance and hybrid power supply and satisfy various load requirements.
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