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公开(公告)号：US10249967B2
公开(公告)日：2019-04-02
申请号：US15617579
申请日：2017-06-08
Applicant: Delta Electronics, Inc.
Inventor： Shang-Yu Li , Hung-Chi Chen , Do Chen , Ching-Ho Chou
Abstract: An electronic device connected to a wire is provided, including a printed circuit board having a hole, a hollow tube, a plurality of blades separated from each other, and a solder, wherein the wire in inserted into the hollow tube and electrically connected to the printed circuit board. The hollow tube is extended through the hole. The solder is connected to the blades and the printed circuit board. The blades are connected to the hollow tube, and a reflex angle is formed between the inner wall of the hollow tube and each of the blades.
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公开(公告)号：US10159125B1
公开(公告)日：2018-12-18
申请号：US15856072
申请日：2017-12-28
Applicant: DELTA ELECTRONICS, INC.
Inventor： Ching-Ho Chou
Abstract: An LED power supply device includes a primary winding, a secondary winding, a charge-pump capacitor, a bridge rectifier circuit, a unidirectional controlled switch, and an output capacitor. The secondary winding includes a first terminal and a second terminal and configured to provide a secondary current in response to a primary current flowing through the primary winding. A first terminal of the charge-pump capacitor is coupled to the second terminal of the secondary winding. The bridge rectifier circuit is coupled to the first terminal of the secondary winding and a second terminal of the charge-pump capacitor. The unidirectional controlled switch is reversely coupled to one of multiple diodes in the bridge rectifier circuit, and configured to be on or off according to a control voltage selectively. The output capacitor is coupled to the bridge rectifier circuit and configured to provide an output voltage according to the secondary current.
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公开(公告)号：US10152068B1
公开(公告)日：2018-12-11
申请号：US15896082
申请日：2018-02-14
Applicant: DELTA ELECTRONICS, INC.
Inventor： Yung-Chuan Lu , Ching-Ho Chou
Abstract: An electrical ballast includes an inverter circuit and a detection circuit. The inverter circuit is configured to receive a dc voltage and provide an output voltage to a lighting module. The detection circuit is electrically coupled to the inverter circuit and a voltage source, and configured to detect an ac voltage signal in the inverter circuit, and pull down the voltage source from a supply level to an under voltage locking level to shut down the inverter circuit on the condition that the ac voltage signal is greater than a threshold value, and restart the inverter circuit after a delay period.
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公开(公告)号：US10104794B2
公开(公告)日：2018-10-16
申请号：US15710329
申请日：2017-09-20
Applicant: Delta Electronics, Inc.
Inventor： Hung-Chi Chen , Do Chen , Ching-Ho Chou , Shang-Yu Li
Abstract: A metal housing is provided. The metal housing includes a bottom plate, a first side plate, a second side plate, a third side plate, a fourth side plate, and a ground portion. The second side plate is parallel to the first plate. The fourth side plate is parallel to the third side plate. The first side plate, the second side plate, the third side plate, and the fourth side plate are integrally formed on the bottom plate. The ground portion is formed on an inner surface of one of the side plates. The ground portion includes a restriction structure and an opening. The restriction structure is integrally formed on the inner surface. The restriction structure is adapted to hold a ground line.
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公开(公告)号：US20140292196A1
公开(公告)日：2014-10-02
申请号：US14029401
申请日：2013-09-17
Applicant: DELTA ELECTRONICS, INC.
Inventor： Ching-Ho Chou
IPC: F21V23/02
CPC classification number: F21V23/026 , F21V23/023 , Y10T29/49124
Abstract: A thin profile electronic ballast for a lighting device includes a metal casing, a circuit board, and a metal cover. The metal casing includes an entrance and a receptacle. The circuit board includes a plurality of electronic components. The circuit board is accommodated within the receptacle of the metal casing. The entrance of the metal casing is covered by the metal cover. The circuit board is disposed in a direction vertical to the metal cover.
Abstract translation: 用于照明装置的薄型电子镇流器包括金属外壳，电路板和金属盖。 金属外壳包括入口和容器。 电路板包括多个电子部件。 电路板容纳在金属外壳的插座内。 金属外壳的入口被金属盖覆盖。 电路板沿垂直于金属盖的方向设置。
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Patent Agency Ranking
公开(公告)号：US20240430999A1
公开(公告)日：2024-12-26
申请号：US18398364
申请日：2023-12-28
Applicant: Delta Electronics, Inc.
Inventor： Ching-Ho Chou , Yung-Chuan Lu
Abstract: An LED power supply is provided. The LED power supply adopts constant-voltage/constant-current control, supplies power to an LED device, and includes an isolated DC-DC conversion circuit having primary and secondary sides and a control module. The control module includes a control unit, a feedback circuit, first and second switches and an optocoupler. The control unit is electrically connected to the primary side and controls operation of the conversion circuit. The optocoupler is configured for signal transmission with electrical isolation and includes a transmitter and a receiver electrically connected to the secondary side and the control unit respectively. When the output voltage is lower than a threshold voltage, the first switch is turned off, the second switch is turned on to trigger the optocoupler to generate a trigger signal at the receiver, and the control unit controls the isolated DC-DC conversion circuit to stop operating based on the trigger signal.
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公开(公告)号：USD993177S1
公开(公告)日：2023-07-25
申请号：US29817316
申请日：2021-11-30
Applicant: Delta Electronics, Inc.
Designer： Chun-Hung Kuo , Po-Heng Chao , Hung-Chi Chen , Do Chen , Ching-Ho Chou
Abstract: FIG. 1 is a perspective view of a power supply showing our new design;
FIG. 2 is another perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a right side elevational view thereof;
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
The broken lines shown represent the portions of the power supply that form no part of the claimed design.-
公开(公告)号：US20230048184A1
公开(公告)日：2023-02-16
申请号：US17492882
申请日：2021-10-04
Applicant: Delta Electronics, Inc.
Inventor： Chun-Hung Kuo , Po-Heng Chao , Jui-Ching Lee , Do Chen , Ching-Ho Chou
IPC: H05K5/00
Abstract: A hanging grounded structure is disclosed and includes a housing, a recessed portion and a hanging groove. The housing includes an opening facing a first direction and a lateral wall extended along a second direction. The lateral wall has a top edge located at a periphery of the opening. The recessed portion is recessed inwardly on the lateral wall. The hanging groove is disposed on the lateral wall and located in the recessed portion. A grounded wire is hung on the housing through the hanging groove. The hanging groove includes a starting point located at the top edge and an ending point. A curved path is formed from the starting point to the ending point. The grounded wire is hung from an interior of the housing. An end of the grounded wire is disposed in the recessed portion through the hanging groove.
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公开(公告)号：US11388800B2
公开(公告)日：2022-07-12
申请号：US16848836
申请日：2020-04-15
Applicant: DELTA ELECTRONICS, INC.
Inventor： Ching-Ho Chou , Yung-Chuan Lu
Abstract: An operating method for a light-emitting diode (LED) power supply includes the following operations: controlling an output voltage to be a first voltage by a control circuit; detecting a load current by a detection circuit; maintaining the output voltage as the first voltage by a constant voltage control circuit when the load current is greater than zero, changing the output voltage from the first voltage to a second voltage by the control circuit when the load current is equal to zero, and the second voltage being greater than the first voltage.
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公开(公告)号：US11343892B2
公开(公告)日：2022-05-24
申请号：US17178260
申请日：2021-02-18
Applicant: DELTA ELECTRONICS, INC.
Inventor： Tsung-Ta Wu , Qi-Rong Lee , Wei-Cheng Chiu , Yu-Yung Huang , Ching-Ho Chou
IPC: H05B45/30 , H05B45/355 , H05B47/165 , H05B45/40 , H05B45/325
Abstract: A driver is configured to provide an output voltage and an output current to a load according to an input voltage. The driver includes a power converter, first and second detecting devices and a controller. The power converter is configured to receive and convert the input voltage to the output voltage and the output current. The first detecting device is configured to detect the input voltage to generate a first signal. The second detecting device is configured to detect the output voltage to generate a second signal, and detect the output current to generate a third signal. The controller is configured to perform a calculation to the second signal and the third signal according to one of lookup tables corresponding to the first signal to generate a power value. An operation method of a driver and a light source system are also disclosed herein.
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