Patents by Inventor Qiqiang Lin

Qiqiang Lin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240040681
    Abstract: A lighting apparatus includes a light source plate, LED modules and a driver module. The light source plate includes a substrate layer, a wiring layer and a protection layer. The substrate layer is made of metal material. LED modules are disposed on a top side of the light source plate. The driver module is disposed on the top side of the light source plate. The LED modules and the driver module are electrically connected via the wiring layer. The driver module includes an AC-DC converter, a regulator, a controller, a current source and an oscillation wave removal circuit. The controller controls the current source to generate driving currents to the LED modules. The oscillation wave removal circuit is coupled to the AC-DC converter for suppressing a sudden abnormal peak voltage from the AC-DC converter.
    Type: Application
    Filed: July 26, 2023
    Publication date: February 1, 2024
    Inventors: Yangbin Xu, Yankun Li, Hemu Ye, Qiqiang Lin, Zongyuan Liu
  • Publication number: 20230389147
    Abstract: A lighting apparatus includes a first LED module, a second LED module, a third LED module, and a driver. The first LED module emits a blue light with a first peak wavelength between 440-470 nm. The second LED module emits a green light with a second peak wavelength between 510-550 nm, a second spectral bandwidth larger than 50 nm and a second color purity larger than 50%. The third LED module emits a red light with a third peak wavelength between 600-650 nm, a third spectral bandwidth larger than 60 nm and a third color purity larger than 80%. The driver adjusts a light ratio among the first blue light, the green light and the red light.
    Type: Application
    Filed: May 29, 2023
    Publication date: November 30, 2023
    Inventors: Changjing Zeng, Zongyuan Liu, Qiqiang Lin, Hao Chen, Yankun Li, Hemu Ye, Liangliang Cao
  • Patent number: 11812530
    Abstract: An illuminating system includes a power source, an on/off switch, an examining module, an illuminating module and a master module. The power source supplies power. The on/off switch switches on or switches off the power from the power source. The examining module detects whether the on/off switch is switched off and whether the on/off switch's switched-off state lasts over a predetermined time interval. In addition, the examining module generates an adjust signal corresponding to a result of detecting the on/off switch. The illuminating module includes a plurality of illuminating elements. The master module adjusts a total current forwarded to and current ratios among the plurality of illuminating elements according to the adjust signal.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: November 7, 2023
    Assignee: XIAMEN LEEDARSON LIGHTING CO., LTD
    Inventors: Qiqiang Lin, Hemu Ye, Yibin Chen, Wei Liu, Yongqiang Wu
  • Publication number: 20230284352
    Abstract: A lighting apparatus includes a first light source, a second light source, a third light source, a driver, a first controller, a second controller and a main controller. The first light source emits a first light with a first color temperature. The second light source emits a second light with a second color temperature. The third light source emits a third light with a third color temperature. The driver generates a first driving current to the first light source, generates a second driving current to the second light source, and generates a third driving current to the third light source.
    Type: Application
    Filed: February 24, 2023
    Publication date: September 7, 2023
    Inventors: Yangbin Xu, Yankun Li, Hemu Ye, Qiqiang Lin, Zongyuan Liu, Liangliang Cao, Changjing Zeng
  • Publication number: 20230239979
    Abstract: A lighting apparatus includes a light source, a main controller, a AC-DC converter, a dimmer signal extractor, a dimmer interface circuit and an isolating transformer. The AC-DC converter converts an external AC power to a driving current of a DC power for supplying power to the light source according to a control signal received by the main controller. The dimmer signal extractor generates the control signal supplied to the main controller according to a transformed signal. The dimmer interface circuit is connected to a dimmer. The dimmer is disposed on a wall to be operated by a user to generate a dimmer voltage. The dimmer voltage is converted to a dimmer signal. The isolating transformer has a secondary terminal connecting to the dimmer interface circuit and a first terminal connecting to the dimmer signal extractor.
    Type: Application
    Filed: January 25, 2023
    Publication date: July 27, 2023
    Inventors: Zulun Hong, Qiqiang Lin, Yongqiang Wu, Zongyuan Liu, Yankun Li, Hemu Ye
  • Patent number: 11659640
    Abstract: A lighting apparatus includes a light source, a silicon controlled rectifier, a rectifier and a current source circuit. The light source has multiple LED modules with different light parameters. The silicon controlled rectifier filters a filtering ratio of an input AC power to a filtered AC power. The filtering ratio is associated with a control angle by supplying a control voltage to the silicon controlled rectifier. The maintainer circuit maintains a working current to the silicon controlled rectifier even when the control angle is large causing the volume of the filtered AC power less than a threshold. The current source circuit receives the DC power. The current source circuit has a wall switch input for connecting to a wall switch. An on-off input pattern of the wall switch is detected by the current source circuit for generating multiple corresponding driving currents.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: May 23, 2023
    Assignee: LEEDARSON LIGHTING CO., LTD.
    Inventors: Yisheng Zheng, Qiqiang Lin, Hemu Ye, Yibin Chen, Zongyuan Liu, Yankun Li
  • Publication number: 20230010921
    Abstract: A lighting apparatus includes a bridge circuit, a current source, a first LED module, a second LED module and a switch. The bridge circuit is used for rectifying an input AC power to generate a DC power. The current source receives the DC power to generate a driving current. The first LED module emits a first light of a first color temperature. The second LED module emits a second light of a second color temperature. The switch is coupled to the current source to change at least a resistance parameter corresponding to a current ratio between the first LED module and the second LED module to generate a mixed light of a mixed color temperature.
    Type: Application
    Filed: July 11, 2022
    Publication date: January 12, 2023
    Inventors: Yongqiang Wu, Yangbin Xu, Guiyuan Lin, Hemu Ye, Qiqiang Lin, Yankun Li, Zongyuan Liu
  • Publication number: 20220418066
    Abstract: A lighting apparatus includes a filter tuner, a bridge rectifier, multiple types of LED modules, a monitor circuit, and a current source. The filter tuner is connected to a manual switch and an external AC power. The filter tuner changes a conductive angle of the external AC power to an adjusted AC input. The bridge rectifier receives the adjusted AC input to generate a DC output. Multiple types of LED modules are disposed for emitting lights of multiple color temperatures. The monitor circuit monitors the conductive angle to generate a control signal. The current source, according to the control signal, generates multiple corresponding driving currents respectively supplied to the multiple types of LED modules to mix a desired color temperature. The desired color temperature is associated with the conductive angle according to a predetermined relation.
    Type: Application
    Filed: June 23, 2022
    Publication date: December 29, 2022
    Inventors: Qiqiang Lin, Yongqiang Wu, Hemu Ye, Zongyuan Liu, Yankun Li, Yibin Chen
  • Patent number: 11466845
    Abstract: A luminating module includes a base, a radio frequency antenna and a luminance module. The base includes a circuit layer, an isolation layer, and a heat-dissipating layer. And the isolation layer is disposed between the circuit layer and the heat-dissipating layer. The radio frequency antenna is disposed at the circuit layer. Also, the radio frequency antenna receives a radio analog control signal. The radio frequency module is disposed at the circuit layer. In addition, the radio frequency module transforms the radio analog control signal into a digital control signal. The luminance module is integrated on the base and electrically coupled to the circuit layer. Besides, the luminance module illuminates based on the digital control signal. Specifically, the base, the radio frequency antenna, the radio frequency module and the luminance module integrate with each other via the circuit layer.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: October 11, 2022
    Assignee: XIAMEN LEEDARSON LIGHTING CO., LTD
    Inventors: Jian Chen, Qiqiang Lin
  • Patent number: 11452185
    Abstract: 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.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: September 20, 2022
    Assignee: XIAMEN LEEDARSON LIGHTING CO., LTD
    Inventors: Wei Liu, Qiqiang Lin, Yibin Chen, Fujie Chen
  • Publication number: 20220240359
    Abstract: A lighting apparatus includes a light source, a silicon controlled rectifier, a rectifier and a current source circuit. The light source has multiple LED modules with different light parameters. The silicon controlled rectifier filters a filtering ratio of an input AC power to a filtered AC power. The filtering ratio is associated with a control angle by supplying a control voltage to the silicon controlled rectifier. The maintainer circuit maintains a working current to the silicon controlled rectifier even when the control angle is large causing the volume of the filtered AC power less than a threshold. The current source circuit receives the DC power. The current source circuit has a wall switch input for connecting to a wall switch. An on-off input pattern of the wall switch is detected by the current source circuit for generating multiple corresponding driving currents.
    Type: Application
    Filed: January 26, 2022
    Publication date: July 28, 2022
    Inventors: Yisheng Zheng, Qiqiang Lin, Hemu Ye, Yibin Chen, Zongyuan Liu, Yankun Li
  • Patent number: 11317494
    Abstract: 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.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: April 26, 2022
    Assignee: XIAMEN LEEDARSON LIGHTING CO., LTD
    Inventors: Qiqiang Lin, Hemu Ye, Wei Liu
  • Publication number: 20220078893
    Abstract: A lighting apparatus includes a first light source, a second light source, a current controller, a current source and a signal converter. The first light source and the second light source are two light sources of a light source set. The light source set may further include more light source of same type of different type. The current source is controlled by the current controller for generating a first driving current to the first light source and for generating a second driving current to the second light source. The signal converter converts a first type control signal to a second type control signal. The first type control signal indicates a light parameter to be produced by the light source set and the second light source. The second type control signal is supplied to the current controller to determine the first driving current and the second driving current.
    Type: Application
    Filed: September 7, 2021
    Publication date: March 10, 2022
    Inventors: Hemu Ye, Qiqiang Lin, Zongyuan Liu, Yankun Li
  • Publication number: 20210381681
    Abstract: An illuminating system includes a power source, an on/off switch, an examining module, an illuminating module and a master module. The power source supplies power. The on/off switch switches on or switches off the power from the power source. The examining module detects whether the on/off switch is switched off and whether the on/off switch's switched-off state lasts over a predetermined time interval. In addition, the examining module generates an adjust signal corresponding to a result of detecting the on/off switch. The illuminating module includes a plurality of illuminating elements. The master module adjusts a total current forwarded to and current ratios among the plurality of illuminating elements according to the adjust signal.
    Type: Application
    Filed: October 30, 2020
    Publication date: December 9, 2021
    Inventors: Qiqiang Lin, Hemu Ye, Yibin Chen, Wei Liu, Yongqiang Wu
  • Publication number: 20210348749
    Abstract: A luminating module includes a base, a radio frequency antenna and a luminance module. The base includes a circuit layer, an isolation layer, and a heat-dissipating layer. And the isolation layer is disposed between the circuit layer and the heat-dissipating layer. The radio frequency antenna is disposed at the circuit layer. Also, the radio frequency antenna receives a radio analog control signal. The radio frequency module is disposed at the circuit layer. In addition, the radio frequency module transforms the radio analog control signal into a digital control signal. The luminance module is integrated on the base and electrically coupled to the circuit layer. Besides, the luminance module illuminates based on the digital control signal. Specifically, the base, the radio frequency antenna, the radio frequency module and the luminance module integrate with each other via the circuit layer.
    Type: Application
    Filed: December 23, 2020
    Publication date: November 11, 2021
    Inventors: Jian Chen, Qiqiang Lin
  • Publication number: 20210307138
    Abstract: 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.
    Type: Application
    Filed: March 25, 2021
    Publication date: September 30, 2021
    Inventors: Wei Liu, Qiqiang Lin, Yibin Chen, Fujie Chen
  • Patent number: 11134549
    Abstract: A lighting apparatus includes a light source, a power converter, an optical coupler, a light sensor, a frequency detector and a controller. The light source includes a LED module. The light switch is connected to the LED module in series. The light switch selectively turns on and turning off the LED module according to a second PWM signal. The power converter converts an alternating current power source with a working frequency to a direct current power. The optical coupler controls the power converter to work in a constant current mode or a constant voltage mode according to a first PWM signal.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: September 28, 2021
    Assignee: XIAMEN LEEDARSON LIGHTING CO., LTD
    Inventors: Yibin Chen, Wei Liu, Qiqiang Lin
  • Publication number: 20210195708
    Abstract: 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.
    Type: Application
    Filed: December 11, 2020
    Publication date: June 24, 2021
    Inventors: Qiqiang Lin, Hemu Ye, Wei Liu
  • Publication number: 20210144827
    Abstract: A lighting apparatus includes a light source, a power converter, an optical coupler, a light sensor, a frequency detector and a controller. The light source includes a LED module. The light switch is connected to the LED module in series. The light switch selectively turns on and turning off the LED module according to a second PWM signal. The power converter converts an alternating current power source with a working frequency to a direct current power. The optical coupler controls the power converter to work in a constant current mode or a constant voltage mode according to a first PWM signal.
    Type: Application
    Filed: November 12, 2020
    Publication date: May 13, 2021
    Inventors: Yibin Chen, Wei Liu, Qiqiang Lin