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公开(公告)号：US20240162833A1
公开(公告)日：2024-05-16
申请号：US18507853
申请日：2023-11-13
Applicant: DELTA ELECTRONICS, INC.
Inventor： Yi-Sheng CHANG , Cheng-Chan HSU , Chia-Wei CHU , Chun-Yu YANG , Deng-Cyun HUANG , Yi-Hsun CHIU , Chien-An LAI , Yu-Tai WANG , Chi-Shou HO , Zhi-Yuan WU , Ko-Wen LU
Abstract: A power supply unit supplies power to a load, and the power supply unit includes a power factor corrector, a DC conversion module, and an isolated conversion module. The power factor corrector is plugged into a first main circuit board and converts an AC power into a DC power. The DC conversion module is plugged into the first main circuit board and converts the DC power into a main power. The isolated conversion module includes a bus capacitor, the bus capacitor is coupled to the DC conversion module through a first power copper bar, and coupled to the power factor corrector through a second power copper bar. The first power copper bar and the second power copper bar are arranged on a side opposite to the first main circuit board, and are arranged in parallel with the first main circuit board.
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公开(公告)号：US20210210952A1
公开(公告)日：2021-07-08
申请号：US16923647
申请日：2020-07-08
Applicant: DELTA ELECTRONICS, INC.
Inventor： Chien-An LAI , Chang-Yuan HSU
Abstract: A surge current suppression circuit includes a switch, a bypass resistor, a detection resistor, and a comparator. The switch is coupled to a first end of an energy storage capacitor in series, wherein a second end of the energy storage capacitor is coupled to a load and receives an input power source. The bypass resistor is coupled to the switch in parallel. The detection resistor is coupled to the switch in series to generate a detection voltage according to a capacitor current flowing through the energy storage capacitor. The comparator compares the detection voltage with a reference voltage to generate a control signal. When the detection voltage is greater than the reference voltage, the control signal controls the switch to be turned off. When the detection voltage is less than the reference voltage, the control signal controls the main switch to be turned on.
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公开(公告)号：US20240161969A1
公开(公告)日：2024-05-16
申请号：US18507775
申请日：2023-11-13
Applicant: DELTA ELECTRONICS, INC.
Inventor： Yi-Hsun CHIU , Yi-Sheng CHANG , Chien-An LAI , Chia-Wei CHU
CPC classification number: H01F27/2804 , H01F27/24 , H01F27/29 , H01F2027/2809
Abstract: A planar magnetic component is arranged on a circuit board of a resonant converter, and the resonant converter includes a primary-side circuit and a secondary-side circuit. The planar magnetic component includes an inductor trace, an inductor iron core, and a current transformer trace. The inductor trace is arranged on the primary-side circuit and formed one layer board of the circuit board to serve as a resonant inductor coupled to the primary-side circuit. The inductor iron core includes a core pillar, and the core pillar penetrates a through hole of the circuit board, and the inductor trace surrounds the through hole. The current transformer trace is formed on the circuit board to serve as a current transformer coil coupled to the resonant inductor. The current transformer trace surrounds the through hole to form a common-core structure that shares the inductor iron core.
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公开(公告)号：US20240161966A1
公开(公告)日：2024-05-16
申请号：US18507446
申请日：2023-11-13
Applicant: DELTA ELECTRONICS, INC.
Inventor： Yi-Sheng CHANG , Chien-An LAI , Yi-Hsun CHIU , Chun-Yu YANG
CPC classification number: H01F27/2804 , H01F27/24 , H01F27/29 , H01F2027/2809
Abstract: A planar magnetic component is arranged on a circuit board of a resonant converter, and the resonant converter includes a primary-side circuit and a secondary-side circuit. The planar magnetic component includes an inductor trace, a primary-side trace, a secondary-side trace, and an iron core assembly. The iron core assembly includes an inductor iron core and an iron core. The primary-side trace surrounds the first through hole in a first direction and surrounds the second through hole in a second direction to form an ∞-shaped trace. The inductor trace is formed on the primary-side layer board and coupled to the primary-side trace, and two ends of the inductor trace form an input terminal and an output terminal of the planar magnetic component.
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Patent Agency Ranking
公开(公告)号：US20250112460A1
公开(公告)日：2025-04-03
申请号：US18891654
申请日：2024-09-20
Applicant: DELTA ELECTRONICS, INC.
Inventor： Cheng-Chan HSU , Chien-An LAI , Guo-Ning CHEN , Yung-Yuan HSIAO , Kai-Lin CHANG
Abstract: A power supply includes a conversion circuit, an auxiliary power circuit, and an output control circuit. The conversion circuit converts a DC power into a first output power, and the auxiliary power circuit converts the DC power into a first auxiliary power. The output control circuit is used to selectively connect a first output terminal and a second output terminal so that when the output control circuit disconnects the first output terminal and the second output terminal, the first output power supplies power to a critical load through the first output terminal, and when the output control circuit connects the first output terminal and the second output terminal, the first output power supplies power to the critical load and a non-critical load through the first output terminal and the second output terminal respectively.
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公开(公告)号：US20220173653A1
公开(公告)日：2022-06-02
申请号：US17444668
申请日：2021-08-08
Applicant: DELTA ELECTRONICS, INC.
Inventor： Chien-An LAI , Jyun-Jhe Jhang , Chien-Yao Liao , Ping-Sheng Wu , I Chen , Chang-Yuan Hsu
Abstract: A power device includes a power factor corrector, an auxiliary capacitor, a switching device, an auxiliary boost circuit, a controller and a voltage conversion device. The switching device has a first end electrically connected to the output end of the power factor corrector, and a second end electrically connected to one end of the auxiliary capacitor. An output end of the auxiliary boost circuit is electrically connected to the output end of the power factor corrector, an input end of the auxiliary boost circuit is electrically connected to a middle end of the switching device, and a ground end of the auxiliary boost circuit is electrically connected to another end of the auxiliary capacitor. The controller is electrically connected to the switching device and the auxiliary boost circuit. The input end of the voltage conversion device is electrically connected to the output end of the power factor corrector.
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公开(公告)号：US20210111639A1
公开(公告)日：2021-04-15
申请号：US16840790
申请日：2020-04-06
Applicant: DELTA ELECTRONICS, INC.
Inventor： Chien-An LAI , Chang-Yuan HSU
Abstract: An active bridge rectifier circuit includes a rectifier unit and a control unit. The rectifier unit includes a first upper bridge switch, a second upper bridge switch, a first lower bridge switch, and a second lower bridge switch. The control unit includes a first signal comparator and a second signal comparator. The first signal comparator compares a live wire signal provided from a live wire end with a neutral wire signal provided from a neutral wire end to generate a first comparison signal. The second signal comparator compares the live wire signal with the neutral wire signal to generate a second comparison signal. The first comparison signal controls the first upper bridge switch and the first lower bridge switch. The second comparison signal controls the second upper bridge switch and the second lower bridge switch.
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公开(公告)号：US20250112471A1
公开(公告)日：2025-04-03
申请号：US18891809
申请日：2024-09-20
Applicant: DELTA ELECTRONICS, INC.
Inventor： Chien-An LAI , Guo-Ning CHEN , Yung-Yuan HSIAO
Abstract: A power supply equipment supplies power to a critical load and a non-critical load. The power supply equipment includes a plurality of power supplies coupled in parallel and a system controller. The system controller is coupled to the power supplies, and communicates with the power supplies to set a specific sequence. The system controller notifies the power supplies to adjust operating frequencies to be inconsistent according to the specific sequence.
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公开(公告)号：US20240322701A1
公开(公告)日：2024-09-26
申请号：US18341139
申请日：2023-06-26
Applicant: DELTA ELECTRONICS, INC.
Inventor： Lin-Ya TSAI , Chien-An LAI
CPC classification number: H02M3/33592 , H02M1/0022 , H02M3/015
Abstract: A synchronous rectification control method for a resonant power supply includes steps as follows. First, setting an initial conduction width of a synchronous rectification switch, which is less than a maximum conduction width. Afterward, detecting a voltage waveform across two ends of a body diode of the synchronous rectification switch. Afterward, calculating a resonant frequency according to the voltage waveform. Finally, determining the maximum conduction width of the synchronous rectification switch.
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