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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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公开(公告)号：US11652420B2
公开(公告)日：2023-05-16
申请号：US17365608
申请日：2021-07-01
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
CPC classification number: H02M3/33592 , H02M3/33553 , H02M3/33584
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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3.发明授权公开(公告)号：US11811328B2
公开(公告)日：2023-11-07
申请号：US17570026
申请日：2022-01-06
Applicant: DELTA ELECTRONICS, INC.
Inventor： Chih-Hsien Li , Yi-Ping Hsieh , Hung-Chieh Lin , Hung-Yu Huang , Ciao-Yin Pan
CPC classification number: H02M3/33523 , H02M1/0009
Abstract: An isolated conversion apparatus with magnetic bias balance control includes an isolated converter, a controller, and a magnetic bias balance circuit. The isolated converter includes a transformer, and a primary side of the transformer includes a primary-side winding and at least one switch bridge arm. The controller is coupled to the at least one switch bridge arm, and provides a pulse width modulation (PWM) signal group to control the at least one switch bridge arm. The magnetic bias balance circuit is coupled to two ends of the primary-side winding and the controller, and provides a compensation voltage to the controller according to an average voltage of a winding voltage across the two ends of the primary-side winding. The controller adjusts a duty cycle of the PWM signal group according to the compensation voltage to correct the magnetic bias.
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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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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：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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