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公开(公告)号：US11632837B2
公开(公告)日：2023-04-18
申请号：US17409503
申请日：2021-08-23
发明人： Biao Chen , Shuxing Gao
摘要： A LED illumination system includes a signal inputting module, a driving module, a switch module, an illumination module, a sampling module, and a control module. The signal inputting module receives a selection signal that corresponds to one specific color temperature and generates a first voltage signal based on the selection signal. The driving module generates a driving signal based on a color temperature adjusting signal. The switch module includes a plurality of LED control units whose activation status that the illumination module responds to illuminate. The sampling module samples the output current of the switch module and generates a second voltage signal correspondingly. The control module receives the first voltage signal and the second voltage signal and generates a control signal correspondingly. And the control module relays the control signal. The switch module additionally controls its illumination status based on the driving signal and the control signal.
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公开(公告)号：US11617242B2
公开(公告)日：2023-03-28
申请号：US17387722
申请日：2021-07-28
发明人： Lingfeng Zhou , Zongyan Liu , Bin Liu , Liangliang Cao , Yueqiang Zhang
IPC分类号： H05B45/10 , H05B47/19 , H05B45/325 , H02M3/24
摘要： A lighting apparatus includes a light source, a rectifier circuit, a DC-DC converter, an adjustment circuit and a controller. The rectifier circuit converts an AC power to a raw direct current. The adjustment circuit provides an adjustment signal corresponding a light intensity setting of the light source. The controller is coupled to the DC-DC converter and the adjustment circuit. The controller receives the adjustment signal for generating a first PWM signal. The DC-DC converter receives the first PWM signal. The DC-DC converter converts the raw direct current to an output current according to a first duty ratio of the first PWM signal. The output current is supplied to the light source corresponding to the light intensity setting.
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公开(公告)号：US11598489B2
公开(公告)日：2023-03-07
申请号：US17393988
申请日：2021-08-04
发明人： Xianwu Lin , Youqin Lin , Renhua Zou , Fanglei Zhao , Zhixian Wu
IPC分类号： F21K9/232 , F21K9/238 , F21K9/235 , H05B45/357 , F21V23/00 , F21V29/50 , F21V3/02 , F21V23/04 , H01Q1/22 , F21Y115/10 , H05B47/19
摘要： A light bulb apparatus includes a bulb shell, an antenna, a driver, a light source plate and a bulb cap. The light source plate has a first layer and a second layer. The LED module is disposed on the first layer. The second layer includes a metal portion. The metal portion carries heat generated by the LED module for heat dissipation. The antenna is disposed upon the first layer. A bulb cap is connected to an external power. The driver is electrically connected to the antenna for receiving a wireless signal. The driver converts the external power to a driving current supplied to the LED module.
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74.发明授权公开(公告)号：US11572985B2
公开(公告)日：2023-02-07
申请号：US17240369
申请日：2021-04-26
发明人： Xiaoliang Wen , Jiahong Chen , Yongzhe Dong , Shouqiang Hou , Zhenkun Huang
IPC分类号： F21K9/61 , F21V33/00 , F21K9/66 , F21V21/096 , F21V23/00 , F21V31/00 , F21V8/00 , F21V3/00 , F21V23/06 , F21Y105/00 , F21V3/04 , F21Y115/10
摘要： A lighting apparatus includes a light source, a light passing cover, a back cover and a rim frame. The light source is used for emitting a light. The light passing cover has a first ladder edge. The rim frame has an inner frame and a light source holder. The back cover, the surface rim and the light passing cover define a concealed space. The light source is disposed in the light source holder in the concealed space. The inner frame defines a light opening for the light to escape from the lighting apparatus. The inner frame has a second ladder edge surrounding the light opening. The first ladder edge and the second ladder edge are pressed by the back cover to press to each other. Multiple ladder protrusion surfaces between the first ladder edge and the second ladder edge prevent water to enter the concealed space.
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公开(公告)号：US11486570B2
公开(公告)日：2022-11-01
申请号：US17190956
申请日：2021-03-03
发明人： Pofeng Peng , TeJung Chien , Chao Wang
摘要： A lighting apparatus includes a fan device, a driver, a connector and a light module. The lighting apparatus is installing to a cavity of a ceiling. The fan device has a fan and an air channel. The fan is placed in the cavity. The driver converts an external power source to a first driving current supplied to the fan device. The connector is fixed to the fan device. The first light source receives a second driving current provided by the driver. The air channel has an entrance between the main housing and the fan device. The entrance is visually concealed by the main housing when a viewer stands below the lighting apparatus.
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公开(公告)号：US20220304126A1
公开(公告)日：2022-09-22
申请号：US17835391
申请日：2022-06-08
发明人： Wenkun Su , Shihai Huang , Hongkui Jiang , Zhiqing Chen
摘要： A lighting apparatus includes a light source, a bridge circuit, a voltage node, a filter circuit, a dimmer check circuit and a control circuit. The light source includes a LED module. The bridge circuit generates a DC power at a voltage node by converting an AC power. The filter circuit is connected to the voltage node for converting the DC power to a driving current to the LED module. The dimmer check circuit is coupled to the voltage node for generating a dimmer check signal by detecting whether a wall dimmer is electrically coupled to the lighting apparatus. The control circuit adjusts a setting of the filter circuit according to the dimmer check signal.
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公开(公告)号：US11452185B2
公开(公告)日：2022-09-20
申请号：US17212668
申请日：2021-03-25
发明人： Wei Liu , Qiqiang Lin , Yibin Chen , Fujie Chen
IPC分类号： H05B45/14 , H05B45/325 , H05B45/345 , H05B45/37 , H05B47/19
摘要： The lighting apparatus includes a LED module, a constant current source, a bridge rectifier, a silicon-controlled rectifier, a wireless module and a detector. The lighting apparatus receives an alternating current power to generate a light. The constant current source provides a driving current to the LED module. The bridge rectifier converts the alternating current power of a first frequency to a direct current power with a second frequency. The second frequency is two times of the first frequency. The silicon-controlled rectifier is connected to the alternating current power and the bridge rectifier for adjusting the direct current power with a chopping signal. The wireless module receives an external control signal. The detector generates a dimming control signal supplied to the constant current source to adjust the driving current according to both the external control signal and the chopping signal.
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公开(公告)号：US11326745B2
公开(公告)日：2022-05-10
申请号：US16916114
申请日：2020-06-30
发明人： Linhua Wang , Shuijing Liang , Shou Chen
IPC分类号： F21K9/278 , F21V23/00 , F21K9/272 , F21V23/04 , F21K9/69 , F21V23/06 , F21V29/70 , F21Y115/10
摘要： A LED light tube apparatus installed to a tube bracket includes a LED light source and a light passing tube. A driver includes a driver circuit. A power input electrode that an external power is supplied to the driver for generating a driving current supplied to the LED light source. A first cap and a second being disposed at two opposite ends of the light passing tube. The first cap and the second cap respectively have two pins inserted into corresponding pin sockets for fixing the LED light tube apparatus to the tube bracket. The LED light tube provides an in-house power source to the pin sockets, but the in-house power is not routed to the driver from the pins.
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公开(公告)号：US11317494B2
公开(公告)日：2022-04-26
申请号：US17120088
申请日：2020-12-11
发明人： Qiqiang Lin , Hemu Ye , Wei Liu
IPC分类号： H05B45/395 , H05B45/34 , H05B45/46
摘要： A linear luminance adjusting circuit includes a rectifying circuit, a constant voltage circuit, a control module, a linear constant current circuit and a hybrid luminance circuit. The rectifying circuit rectifies power from the AC power source to generated a rectified voltage. The constant voltage circuit transforms the rectified voltage into a constant voltage. The control module is electrically coupled to the constant voltage circuit. The control module generates a control signal using the constant voltage. The linear constant current circuit is electrically coupled to the rectifying circuit and the control module. The linear constant current circuit is powered up using the rectifying voltage. And the linear constant current circuit generates a linear current using the control signal. The hybrid luminance circuit is electrically coupled to the rectifying circuit and the linear constant current circuit. The hybrid luminance circuit illuminates using the linear current.
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公开(公告)号：US11284486B2
公开(公告)日：2022-03-22
申请号：US17075664
申请日：2020-10-20
IPC分类号： H05B45/20 , H05B45/325 , H05B45/345 , H05B45/46 , F21Y115/10
摘要： A lighting apparatus includes a first LED module, a second LED module, a third LED module, a constant current generator, a first switch, a third switch and a driver. The constant current generator is used for generating a constant current according to a major PWM signal. The first LED module and the third LED module are connected in parallel and share the constant current. The constant current is adjusted by changing a major duty ratio of the major PWM signal. The driver is used for generating the major PWM signal, a first PWM signal and a third PWM signal. The first color temperature profile, the second color temperature profile and the third color temperature profile have different spectrum distributions.
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