公开(公告)号：US11991797B2

公开(公告)日：2024-05-21

申请号：US18155509

申请日：2023-01-17

Applicant: DELTA ELECTRONICS, INC.

Inventor： Ching-Ho Chou ,  Yung-Chuan Lu

IPC: H05B45/10 ,  H05B45/3725

CPC classification number: H05B45/10 ,  H05B45/3725

Abstract: A LED power supply with bi-level dimming receives an input voltage to supply power to an LED lamp, and adjusts the brightness of the LED lamp according to whether an external detection switch is triggered to be turned on. The LED power supply includes a conversion circuit, a switch, and an oscillation circuit. The conversion circuit converts the input voltage into an output voltage, and provides the output voltage to supply power to the LED lamp so as to control the LED lamp to provide a first brightness. The oscillation circuit provides a dimming signal with a fixed frequency and a duty cycle to the switch when the external detection switch is turned on so as to turn on and turn off the switch. The switch correspondingly adjusts the output voltage according to the dimming signal to control the LED lamp to provide a second brightness.

公开(公告)号：US11678443B2

公开(公告)日：2023-06-13

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: H01R13/58 ,  H05K5/00

CPC classification number: H05K5/0026

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.

公开(公告)号：US09351379B2

公开(公告)日：2016-05-24

申请号：US14587753

申请日：2014-12-31

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chia-Jung Nian ,  Ching-Ho Chou

IPC: H05B33/08 ,  H05B37/02

CPC classification number: H05B37/0263 ,  H05B33/0809 ,  H05B33/0815 ,  H05B33/0821 ,  H05B33/0845 ,  H05B33/0851

Abstract: An integrated light-emitting diode (LED) driver circuit includes a bi-directional power line communication (PLC) unit, a power conversion module, and a constant current (CC)/constant voltage (CV) control unit. The bi-directional PLC unit receives an AC voltage, and converts a modulation signal on the AC voltage to generate a light-dimming control signal. The power conversion module receives the AC voltage and converts the AC voltage to generate an output voltage. The CC/CV control unit receives the light-dimming control signal to generate a dimming constant current or a dimming constant voltage. The integrated LED driver circuit outputs the dimming constant current or the dimming constant voltage and the output voltage to drive a LED string.

Abstract translation: 集成发光二极管（LED）驱动电路包括双向电力线通信（PLC）单元，功率转换模块和恒定电流（CC）/恒定电压（CV）控制单元。 双向PLC单元接收交流电压，并且对交流电压上的调制信号进行转换，生成调光控制信号。 电力转换模块接收交流电压并转换交流电压以产生输出电压。 CC / CV控制单元接收调光控制信号以产生调光恒定电流或调光恒定电压。 集成LED驱动电路输出调光恒流或调光恒定电压和输出电压驱动LED串。

公开(公告)号：US08890436B2

公开(公告)日：2014-11-18

申请号：US13726594

申请日：2012-12-25

Applicant: Delta Electronics, Inc.

Inventor： Ching-Ho Chou

IPC: H05B37/02

CPC classification number: H05B37/02 ,  H05B33/0803 ,  H05B33/0857 ,  Y02B20/19 ,  Y02B20/40

Abstract: A color temperature adjustable LED lamp is disclosed, which includes a 3-way lamp socket and a 3-way lamp head. The 3-way lamp socket has a 3-way switch. The 3-way lamp head is connected to the 3-way lamp socket and has a first LED array and a second LED array. The color temperature of the first LED array is different from the color temperature of the second LED array. The color temperature adjustable LED lamp includes a mains detecting circuit for detecting a conducting state of a first live wire and a second live wire in the 3-way switch to selectively operate the first LED array, the second LED array or alternatively operates the first and second LED array.

Abstract translation: 公开了一种色温可调LED灯，其包括3路灯座和3路灯头。 3路灯座有3路开关。 3路灯头连接到3路灯座，并具有第一个LED阵列和第二个LED阵列。 第一LED阵列的色温与第二LED阵列的色温不同。 色温可调LED灯包括一个电源检测电路，用于检测三路开关中的第一带电线和第二带电线的导通状态，以选择性地操作第一LED阵列，第二LED阵列或交替地操作第一和第 第二个LED阵列。

公开(公告)号：US20250098048A1

公开(公告)日：2025-03-20

申请号：US18740782

申请日：2024-06-12

Applicant: Delta Electronics, Inc.

Inventor： Ching-Ho Chou ,  Yung-Chuan Lu ,  Tsung-Ta Wu ,  Chien-Ting Lin

IPC: H05B45/325 ,  H05B45/10

Abstract: An LED driver, an LED lighting system and an operating method thereof are provided. The LED driver is for driving an LED light source and includes a strobe circuit and a DC-DC converter. The strobe circuit generates a low-frequency modulation signal. The DC-DC converter is coupled to the strobe circuit and is configured to provide an adjustable operating current to the LED light source according to a DC signal and the low-frequency modulation signal. The operating current includes a DC current signal and a low-frequency AC current signal corresponding to the DC signal and the low-frequency modulation signal respectively. A frequency of the low-frequency AC current signal is between 25 Hz and 100 Hz, and a current ripple factor, equaling a difference of a maximum value and a minimum value of the operating current divided by a sum of the maximum value and the minimum value, is less than 8%.

公开(公告)号：US11991818B2

公开(公告)日：2024-05-21

申请号：US17720069

申请日：2022-04-13

Applicant: Delta Electronics, Inc.

Inventor： Jui-Ching Lee ,  Po-Heng Chao ,  Do Chen ,  Ching-Ho Chou

IPC: H05K1/02 ,  H05K7/12 ,  H05K7/14

CPC classification number: H05K1/0215 ,  H05K7/12 ,  H05K7/1417

Abstract: An electronic device is provided and includes a circuit board and a casing. The circuit board includes a plate body, a perforation and a ground wire. The perforation penetrates through the plate body, the ground wire is electrically coupled with the plate body and crosses over the perforation. The casing includes a bottom plate and a clamping structure. The clamping structure is disposed on the bottom plate and includes a first clamping part and a second clamping part. The circuit board is disposed in the casing, and the clamping structure penetrates through the plate body through the perforation, so that the circuit board is positioned on the casing, and the ground wire is clamped by the first clamping part and the second clamping part of the clamping structure. Consequently, the circuit board is grounded with the casing.

公开(公告)号：USD1007422S1

公开(公告)日：2023-12-12

申请号：US29837892

申请日：2022-05-10

Applicant: Delta Electronics, Inc.

Designer： Chun-Hung Kuo ,  Po-Heng Chao ,  Jui-Ching Lee ,  Ching-Ho Chou

Abstract: FIG. 1 is a front, top and left side perspective view of a power supply showing our new design;
FIG. 2 is a rear, bottom and right side 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.

公开(公告)号：US11646655B2

公开(公告)日：2023-05-09

申请号：US17443787

申请日：2021-07-27

Applicant: Delta Electronics, Inc.

Inventor： Ching-Ho Chou ,  Yung-Chuan Lu

IPC: H02M3/00 ,  H02M1/00 ,  H02M3/335

CPC classification number: H02M3/01 ,  H02M1/0009 ,  H02M3/33571 ,  H02M3/33573

Abstract: A control method for an LLC resonant converter includes the following steps. Firstly, the LLC resonant converter is enabled. Then, the sonant converter is operated in a first modulation mode, so that the magnitude of the output voltage is greater than or equal to an intermediate voltage value. When the magnitude of the output current is greater than zero, a determining step is performed to determine whether the magnitude of the output voltage is greater than a reference voltage value. When the determining result is satisfied, the LLC resonant converter is operated in the first modulation mode. When the determining result is not satisfied, the LLC resonant converter is operated in a second modulation mode, so that the magnitude of the output voltage is lower than the intermediate voltage value.

公开(公告)号：USD936581S1

公开(公告)日：2021-11-23

申请号：US29718697

申请日：2019-12-27

Applicant: Delta Electronics, Inc.

Designer： Po-Heng Chao ,  Ching-Ho Chou

公开(公告)号：US11026338B2

公开(公告)日：2021-06-01

申请号：US16278164

申请日：2019-02-17

Applicant: DELTA ELECTRONICS, INC.

Inventor： Ching-Ho Chou ,  Po-Heng Chao ,  Hung-Chi Chen

IPC: H05K5/00 ,  H05K5/06 ,  H02G3/22 ,  H05K5/02 ,  H05K5/03 ,  H05K7/14

Abstract: A waterproof casing for packaging a circuit board having an antenna includes a housing, a waterproof gasket, and an end cover. The housing has an accommodation space and a side opening communicating with each other. The accommodation space is configured to accommodate the circuit board. The waterproof gasket includes a main body and an extending portion. The main body covers the side opening. The extending portion extends from the main body. The end cover abuts against a side of the main body away from the accommodation space, and is fixed to the housing to form a box with the housing. The box has a communication opening positioned corresponding to the antenna. The extending portion hermetically covers the communication opening.