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1.发明授权公开(公告)号：US10278255B1
公开(公告)日：2019-04-30
申请号：US15941539
申请日：2018-03-30
Applicant: UNITY OPTO TECHNOLOGY CO., LTD.
Inventor： Chih-Hsien Wu , Wei Chang , Kai-Cheng Chuang , Kuo-Tien Cheng , Hsin-Chieh Liao , Jia-Hao Siao
IPC: H05B33/08 , F21Y115/10 , F21V33/00
Abstract: Disclosed are a light-emitting device for digital control of color temperature modulation and its application. The light-emitting device is electrically connected to a wall switch and includes a DIP switch, first LEDs, second LEDs and a control module. The control module is electrically connected to the above components and contains a truth table. The truth table includes at least a first mode, second mode, third mode and a memory and automatically switch mode, and a digital switching is accomplished by correlating the DIP switch to the truth table. In the memory and automatically switch mode, the first to third mode color temperatures are sequentially switched and controlled by turning on or off the wall switch according to the truth table information. The light-emitting device may be applied to light fixtures or mirror products to improve the convenience of use.
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公开(公告)号：US09674908B1
公开(公告)日：2017-06-06
申请号：US15358612
申请日：2016-11-22
Applicant: UNITY OPTO TECHNOLOGY CO., LTD.
Inventor： Chih-Hsien Wu , Wei Chang , Kai-Cheng Chuang , Sheng-Wei Chen , Che-Hao Kuo
CPC classification number: H05B33/0815 , H02M1/14 , H02M1/42 , H02M1/44 , H05B33/0818
Abstract: A secondary-side bucking and current-stabilizing flyback power converter adopts a dual-stage isolated circuit architecture and outputs a constant output current to drive a low-power LED module, and its primary stage adopts a flyback circuit architecture with a primary regulated voltage, and its secondary stage adopts of a buck circuit architecture of the current stabilizer, so that after the primary stage converts the constant voltage, the current stabilizer senses the load effect of the output current at the LED module to regulate the output cycle and maintain the total output of the output current constant and reduce the ripple amplitude, so as to achieve a non-strobe output result and improve the illumination effect of the LED module.
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公开(公告)号：US09485824B2
公开(公告)日：2016-11-01
申请号：US14324364
申请日：2014-07-07
Applicant: UNITY OPTO TECHNOLOGY CO., LTD.
Inventor： Chih-Hsien Wu , Wei Chang , Kai-Cheng Chuang , Szu-Chien Chen
IPC: H05B33/08
CPC classification number: H05B33/0845 , H05B33/0812 , H05B33/0815 , H05B33/0821
Abstract: Disclosed is a purely resistive dimming circuit for driving LEDs to emit light and support an LED dimming function. The LEDs are divided into a first string and a second string connected in series with each other. The purely resistive dimming circuit is respectively and electrically coupled to an anode terminal of the first string and an anode terminal of the second string by a driving resistor and a current limiting resistor which are connected in series with each other. The resistance of the driving resistor restricts the LEDs to emit light at different stages to enhance the working efficiency of circuits, while using the property of the current limiting resistor to limit the overvoltage current, so as to achieve a constant power operating effect.
Abstract translation: 公开了一种用于驱动LED发光并支持LED调光功能的纯电阻调光电路。 LED被分成彼此串联连接的第一串和第二串。 纯电阻调光电路分别通过串联连接的驱动电阻器和限流电阻器电耦合到第一串的阳极端子和第二串的阳极端子。 驱动电阻器的电阻限制LED在不同阶段发光，以提高电路的工作效率，同时使用限流电阻的特性来限制过电压电流，从而达到恒定的功率运行效果。
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公开(公告)号：US08710745B1
公开(公告)日：2014-04-29
申请号：US13710557
申请日：2012-12-11
Applicant: Unity Opto Technology Co., Ltd.
Inventor： Wei Chang , Chih-Hsien Wu , Kai-Cheng Chuang
CPC classification number: H05B33/089 , Y02B20/341
Abstract: The present invention relates to an LED drive circuit, which includes a protection unit, which is connected to an AC power supply; a rectification filter unit, which is electrically connected to the protection unit; a control unit, which has an end electrically connected to the rectification filter unit; an LED driving unit, which includes an LED, a first capacitor, and a transistor, the LED being connected in parallel with the first capacitor, the LED including a positive terminal and a negative terminal, the positive terminal of the LED being electrically connected to the rectification filter unit and the control unit; and a current detection feedback unit, which is arranged between the LED driving unit and the control unit. As such, the current detection feedback unit forms a protection circuit to prevent an increase of power caused by excessively high input voltage from an AC power supply.
Abstract translation: LED驱动电路技术领域本发明涉及LED驱动电路，其包括与AC电源连接的保护单元; 整流滤波器单元，其电连接到所述保护单元; 控制单元，其端部电连接到整流滤波器单元; LED驱动单元，其包括LED，第一电容器和晶体管，所述LED与所述第一电容器并联连接，所述LED包括正极端子和负极端子，所述LED的正极端子电连接到 整流滤波单元和控制单元; 以及布置在LED驱动单元和控制单元之间的电流检测反馈单元。 因此，电流检测反馈部形成保护电路，以防止来自交流电源的输入电压过高引起的功率增加。
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公开(公告)号：US09985009B2
公开(公告)日：2018-05-29
申请号：US15216983
申请日：2016-07-22
Applicant: UNITY OPTO TECHNOLOGY CO., LTD.
Inventor： Ching-Huei Wu , Chih-Hsien Wu , Wei Chang , Huan-Ying Lu , Shih-Chao Shen
CPC classification number: H01L25/13 , H01L33/504 , H01L2933/0041
Abstract: Disclosed are an LED light emitting device and its manufacturing method. A blue LED chip specification is selected, a green phosphor and the blue LED chip are used to determine a green light frame on the CIE1931 chromaticity coordinates and a red phosphor together with a blue LED chip are used to determine a red light frame on the CIE1931 chromaticity coordinates, and a predetermined straight line passing through the color temperature target frame is selected, and both end points of the predetermined straight line fall within the green light frame and the red light frame, so as to determine the concentration of the green phosphor and the red phosphor, and the green and red phosphors and a blue LED chip are packaged to form a first LED and a second LED, and at least one first LED and at least one second LED are installed on a substrate.
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Patent Agency Ranking
公开(公告)号：US09572221B2
公开(公告)日：2017-02-14
申请号：US14821954
申请日：2015-08-10
Applicant: UNITY OPTO TECHNOLOGY CO., LTD.
Inventor： Wei Chang , Kai-Cheng Chuang , Yi-Shu Chen
CPC classification number: H05B33/0854 , F21K9/23 , F21S8/02 , F21S8/026 , F21V23/0464 , F21Y2105/18 , F21Y2115/10 , G02B6/0096 , H05B33/0803 , H05B37/0218 , Y02B20/46
Abstract: An auto-sensing dimming lamp guides ambient light to a sensor installed in a lamp cover and at a base through a light pipe. The auto-sensing dimming lamp automatically adjusts a light emission status of LED light sources according to the ambient light by a processor installed at the base. The processor includes a pass filter unit and a modulation unit, and the pass filter unit receives a detected signal waveform of the sensor and a driving voltage waveform of the LED light sources.
Abstract translation: 自动感应调光灯将环境光引导到安装在灯罩中的传感器和通过光管的基座。 自动感应调光灯通过安装在底座的处理器根据环境光自动调节LED光源的发光状态。 处理器包括通过滤波器单元和调制单元，并且通过滤波器单元接收传感器的检测信号波形和LED光源的驱动电压波形。
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公开(公告)号：US09435491B2
公开(公告)日：2016-09-06
申请号：US14108582
申请日：2013-12-17
Applicant: UNITY OPTO TECHNOLOGY CO., LTD.
Inventor： Wei Chang , Chih-Hsien Wu , Huan-Ying Lu , Shih-Chao Shen , Sen-Yuh Tsai
CPC classification number: F21K9/23 , F21V19/004 , F21V21/00
Abstract: An LED lead frame mounted on a platform of a lightbulb includes a metal polarity substrate, a metal retaining substrate and a casing for partially covering the metal polarity substrate and the metal retaining substrate. The metal retaining substrate is a sheet bent into a disposing portion and a carrying portion, and an included angle θ1 is defined between the portions, and an abutting surface of the disposing portion abuts the platform, and a portion of the carrying portion not covered by the casing is provided for installing at least one LED chip. The metal polarity substrate is bent to form an included angle θ2, and θ1=θ2, and 93°≦θ1≦130°. The casing has a support member formed on the casing and protruded in a direction opposite to the direction of bending the metal retaining substrate. The LED lead frame enhances the illumination angle and light uniformity of the lightbulb.
Abstract translation: 安装在灯泡的平台上的LED引线框架包括金属极性基板，金属保持基板和用于部分地覆盖金属极性基板和金属保持基板的壳体。 金属保持基板是弯曲成设置部分和承载部分的片材，并且在该部分之间限定夹角θ1，并且所述布置部分的邻接表面邻接所述平台，并且所述承载部分的一部分未被 壳体被设置用于安装至少一个LED芯片。 金属极性基板弯曲形成夹角θ2，θ1=θ2，93°≤θ1≤130°。 壳体具有形成在壳体上并沿与金属保持基板的弯曲方向相反的方向突出的支撑构件。 LED引线框架增强了灯泡的照明角度和光线均匀性。
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8.发明授权LED driver circuit for supplying TRIAC holding current by using controllable current source 有权LED驱动电路，用于通过可控电流源提供TRIAC保持电流公开(公告)号：US09198243B2
公开(公告)日：2015-11-24
申请号：US14200309
申请日：2014-03-07
Applicant: UNITY OPTO TECHNOLOGY CO., LTD.
Inventor： Chih-Hsien Wu , Wei Chang , Kai-Cheng Chuang , Shao-Wei Chiu
CPC classification number: H05B33/0815 , H05B33/0845 , Y02B20/347
Abstract: An LED driver circuit for supplying a TRIAC holding current by using a controllable current source has a single-stage power factor correction circuit architecture, and the circuit receives an input voltage received by a conversion module of the controllable current source to form an operating current for driving an LED light source to emit light and monitoring the change of the input voltage by a control chip, and adopts a switching method of a fixed cut-off time of a switch unit, so that the controllable current source outputs a constant operating current in a standard peak value to achieve the constant current status during the operation of the LED light source while assuring the operating current is always greater than a holding current required by the TRIAC element when the TRIAC element is conducted.
Abstract translation: 用于通过使用可控电流源来提供TRIAC保持电流的LED驱动器电路具有单级功率因数校正电路架构，并且该电路接收由可控电流源的转换模块接收的输入电压以形成用于 驱动LED光源发光并通过控制芯片监视输入电压的变化，采用开关单元的固定截止时间的切换方式，使可控电流源输出恒定的工作电流 在确保工作电流的同时确保LED光源的运行期间的恒定电流状态的标准峰值总是大于当TRIAC元件被传导时TRIAC元件所需的保持电流。
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公开(公告)号：US08941323B1
公开(公告)日：2015-01-27
申请号：US14026132
申请日：2013-09-13
Applicant: Unity Opto Technology Co., Ltd.
Inventor： Chih-Hsien Wu , Wei Chang , Kai-Cheng Chuang , Shao-Wei Chiu
CPC classification number: H05B33/0815 , H05B33/0803
Abstract: A ceiling lamp adopting a non-separating driver circuit includes a conversion module and a control module. The conversion module converts an input voltage into an operating voltage to drive the LEDs and forming a driving current, and the control module monitors the operating voltage and the driving current to adjust the operating cycle of the conversion module, change the output voltage value of the operating voltage, and linearly change the driving current at a constant current state. The conversion module just executes the power conversion for one time to provide the driving power of the LEDs instead of using the conventional driving method that executes a two-stage power conversion by a separating power converter and a negative booster of the conventional ceiling lamp. Therefore, the ceiling lamp adopting a non-separating driver circuit is capable of lowering the circuit cost and improving the operating efficiency.
Abstract translation: 采用非分离驱动电路的吸顶灯包括转换模块和控制模块。 转换模块将输入电压转换为工作电压以驱动LED并形成驱动电流，并且控制模块监视工作电压和驱动电流以调整转换模块的工作周期，改变转换模块的输出电压值 工作电压，并在恒定电流状态下线性地改变驱动电流。 转换模块仅执行一次的功率转换以提供LED的驱动功率，而不是使用通过常规天花板灯的分离功率转换器和负增强器执行两级功率转换的传统驱动方法。 因此，采用非分离驱动电路的吸顶灯能够降低电路成本，提高工作效率。
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公开(公告)号：USD794866S1
公开(公告)日：2017-08-15
申请号：US29563497
申请日：2016-05-05
Applicant: UNITY OPTO TECHNOLOGY CO., LTD.
Designer： Chih-Hsien Wu , Wei Chang , Kai-Cheng Chuang , Yi-Shu Chen , Hsin-Chieh Liao , Sen-Yuh Tsai , Ching-Ping Tseng
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