公开(公告)号：US10531533B1

公开(公告)日：2020-01-07

申请号：US16558326

申请日：2019-09-03

申请人： IML International

发明人： Horng-Bin Hsu ,  Yi-Mei Li

IPC分类号： H05B37/00 ,  H05B33/08 ,  H05B37/02

摘要： An LED lighting system includes a luminescent unit driven by a rectified AC voltage and a bleeder circuit. The bleeder circuit includes a current source, a dimming detection unit and an adjusting unit. The current source is configured to provide a bleeder current according to a control signal. The dimming detection unit is configured to monitor the rectified AC voltage, thereby outputting a dimming detection signal associated with an operational mode of the LED lighting system. The adjusting unit is configured to output the control signal according to the dimming detection signal so as to instruct the current source to keep the bleeder current at a first value during a first period and at a second value smaller than the first value during a second period subsequent to the first period when the dimming detection signal indicates that the LED lighting system is operating in a dimming mode.

公开(公告)号：US09554428B2

公开(公告)日：2017-01-24

申请号：US14838329

申请日：2015-08-27

申请人： IML International

发明人： Horng-Bin Hsu ,  Yung-Hsin Chiang ,  Yi-Mei Li

IPC分类号： H05B33/08

CPC分类号： H05B33/0812 ,  Y02B20/345 ,  Y02B20/348

摘要： An LED lighting device driven by a rectified AC voltage includes a luminescent device, a charge storage unit and a current controller. The charge storage unit is configured to turn on the luminescent device when the rectified AC voltage is still insufficient to turn on the luminescent device. The current control unit is configured to allow the LED lighting device to have constant luminance regardless of the level of the rectified AC voltage, thereby improving flicker phenomenon.

摘要翻译： 由整流的AC电压驱动的LED照明装置包括发光装置，电荷存储单元和电流控制器。 电荷存储单元被配置为当整流的AC电压仍不足以导通发光装置时接通发光装置。 电流控制单元被配置为允许LED照明装置具有恒定的亮度，而与整流的AC电压的电平无关，从而改善闪烁现象。

公开(公告)号：US20160150610A1

公开(公告)日：2016-05-26

申请号：US14872116

申请日：2015-09-30

申请人： IML International

发明人： Horng-Bin Hsu ,  Yung-Hsin Chiang

IPC分类号： H05B33/08

CPC分类号： H05B33/083

摘要： An LED lighting device includes first and second luminescent units, first and second current controllers, a line voltage sensing unit and a mode control unit. The first current controller with a first current setting is selectively coupled to the first luminescent unit according to a sensing voltage associated a range of the rectified AC voltage. The second current controller with a second current setting is coupled in series to the second luminescent unit . The line voltage sensing unit is configured to detect the sensing voltage. The mode control unit is configured to operate the LED lighting device in a first driving mode when detecting that the rectified AC voltage is within a first AC range and operate the LED lighting device in a second driving mode when detecting that the rectified AC voltage is within a second AC range.

摘要翻译： LED照明装置包括第一和第二发光单元，第一和第二电流控制器，线路电压感测单元和模式控制单元。 根据与整流的AC电压的范围相关联的感测电压，具有第一电流设置的第一电流控制器选择性地耦合到第一发光单元。 具有第二电流设置的第二电流控制器与第二发光单元串联耦合。 线路电压感测单元被配置为检测感测电压。 模式控制单元被配置为当检测到整流的AC电压处于第一AC范围内时以第一驱动模式操作LED照明装置，并且当检测到整流的AC电压在内部时，以第二驱动模式操作LED照明装置 第二个交流范围。

公开(公告)号：US20140339990A1

公开(公告)日：2014-11-20

申请号：US13972854

申请日：2013-08-21

申请人： IML International

发明人： Horng-Bin Hsu ,  Yi-Mei Li ,  Yung-Hsin Chiang

IPC分类号： H05B33/08

CPC分类号： H05B33/083

摘要： An LED lighting device includes multiple driving stages. A first driving stage includes a first luminescent device driven by a first current and a first current controller coupled in parallel with the first luminescent device. The first current controller is configured to conduct a second current according to a voltage established across the first current controller and regulate the second current so that a sum of the first current and the second current does not exceed a first value. The second driving stage includes a second luminescent device driven by a third current and a second current controller coupled in series to the second luminescent device. The second current controller is configured to conduct a fourth current according to a voltage established across the second current controller and regulate the fourth current so that a sum of the third current and the fourth current does not exceed a second value.

摘要翻译： LED照明装置包括多个驱动阶段。 第一驱动级包括由第一电流驱动的第一发光器件和与第一发光器件并联耦合的第一电流控制器。 第一电流控制器被配置为根据在第一电流控制器上建立的电压来传导第二电流，并调节第二电流，使得第一电流和第二电流之和不超过第一值。 第二驱动级包括由第三电流驱动的第二发光装置和与第二发光装置串联耦合的第二电流控制器。 第二电流控制器被配置为根据在第二电流控制器上建立的电压来传导第四电流，并调节第四电流，使得第三电流和第四电流之和不超过第二值。

公开(公告)号：US10334682B1

公开(公告)日：2019-06-25

申请号：US16184989

申请日：2018-11-08

申请人： IML International

发明人： Horng-Bin Hsu ,  Yi-Mei Li ,  Yung-Hsin Chiang

IPC分类号： H05B33/08

摘要： An LED lighting system includes a luminescent unit driven by a rectified AC voltage, a dimmer switch configured to adjust a duty cycle of a system current, and a bleeder circuit. The bleeder circuit includes a first current source, a second current source, a third current source, a current-sensing element for providing a first feedback voltage associated with the system current, a capacitor, and a control unit. The control unit is configured to activate the first current source and deactivate the second current source for charging the capacitor when the system current exceeds a predetermined threshold, deactivate the first current source and activate the second current source for discharging the capacitor when the system current does not exceed the predetermined threshold, and deactivate the third current source to stop supplying the bleeder current according to a second feedback voltage established across the capacitor.

公开(公告)号：US09258865B2

公开(公告)日：2016-02-09

申请号：US14700165

申请日：2015-04-30

申请人： IML International

发明人： Horng-Bin Hsu ,  Yi-Mei Li ,  Yung-Hsin Chiang

IPC分类号： H05B33/08

CPC分类号： H05B33/0851 ,  H05B33/0809 ,  H05B33/0815 ,  H05B33/0824 ,  H05B33/0845

摘要： An LED lighting device includes multiple luminescent devices driven by a rectified AC voltage. The multiple luminescent devices are turned on flexibly in a multi-stage driving scheme using multiple current control units. At least one charge storage unit is coupled in parallel with at least one luminescent device. When the rectified AC voltage is still insufficient to turn on the at least one luminescent device, the at least charge storage unit is configured to discharge energy to the at least one luminescent device, thereby keeping the at least one luminescent device turned on.

摘要翻译： LED照明装置包括由整流的AC电压驱动的多个发光装置。 多个发光装置使用多个电流控制单元在多级驱动方案中灵活地打开。 至少一个电荷存储单元与至少一个发光装置并联耦合。 当整流的交流电压仍然不足以接通至少一个发光装置时，至少电荷存储单元被配置为将能量放电到至少一个发光装置，从而保持至少一个发光装置的导通。

公开(公告)号：US10237932B1

公开(公告)日：2019-03-19

申请号：US16057782

申请日：2018-08-07

申请人： IML International

发明人： Horng-Bin Hsu ,  Yi-Mei Li ,  Yung-Hsin Chiang

IPC分类号： H05B33/08

摘要： An LED lighting system includes a luminescent unit driven by a rectified AC voltage, a dimmer switch configured to adjusting a duty cycle of a system current, and a bleeder circuit. The bleeder circuit includes a first current source, a second current source, a third current source, a current-sensing element for providing a first feedback voltage associated with the system current, a capacitor, and a control unit. The control unit is configured to activate the first current source and deactivate the second current source for charging the capacitor when the system current exceeds a predetermined threshold, deactivate the first current source and activate the second current source for discharging the capacitor when the system current does not exceed the predetermined threshold, and deactivate the third current source to stop supplying the bleeder current according to a second feedback voltage established across the capacitor.

公开(公告)号：US20160381744A1

公开(公告)日：2016-12-29

申请号：US14838329

申请日：2015-08-27

申请人： IML International

发明人： Horng-Bin Hsu ,  Yung-Hsin Chiang ,  Yi-Mei Li

IPC分类号： H05B33/08

CPC分类号： H05B33/0812 ,  Y02B20/345 ,  Y02B20/348

摘要： An LED lighting device driven by a rectified AC voltage includes a luminescent device, a charge storage unit and a current controller. The charge storage unit is configured to turn on the luminescent device when the rectified AC voltage is still insufficient to turn on the luminescent device. The current control unit is configured to allow the LED lighting device to have constant luminance regardless of the level of the rectified AC voltage, thereby improving flicker phenomenon.

摘要翻译： 由整流的AC电压驱动的LED照明装置包括发光装置，电荷存储单元和电流控制器。 电荷存储单元被配置为当整流的AC电压仍不足以导通发光装置时接通发光装置。 电流控制单元被配置为允许LED照明装置具有恒定的亮度，而与整流的AC电压的电平无关，从而改善闪烁现象。

公开(公告)号：US09351363B1

公开(公告)日：2016-05-24

申请号：US14872116

申请日：2015-09-30

申请人： IML International

发明人： Horng-Bin Hsu ,  Yung-Hsin Chiang

IPC分类号： H05B31/00 ,  H05B33/08

CPC分类号： H05B33/083

摘要： An LED lighting device includes first and second luminescent units, first and second current controllers, a line voltage sensing unit and a mode control unit. The first current controller with a first current setting is selectively coupled to the first luminescent unit according to a sensing voltage associated a range of the rectified AC voltage. The second current controller with a second current setting is coupled in series to the second luminescent unit. The line voltage sensing unit is configured to detect the sensing voltage. The mode control unit is configured to operate the LED lighting device in a first driving mode when detecting that the rectified AC voltage is within a first AC range and operate the LED lighting device in a second driving mode when detecting that the rectified AC voltage is within a second AC range.

摘要翻译： LED照明装置包括第一和第二发光单元，第一和第二电流控制器，线路电压感测单元和模式控制单元。 根据与整流的AC电压的范围相关联的感测电压，具有第一电流设置的第一电流控制器选择性地耦合到第一发光单元。 具有第二电流设置的第二电流控制器与第二发光单元串联耦合。 线路电压感测单元被配置为检测感测电压。 模式控制单元被配置为当检测到整流的AC电压处于第一AC范围内时以第一驱动模式操作LED照明装置，并且当检测到整流的AC电压在内部时，以第二驱动模式操作LED照明装置 第二个交流范围。

公开(公告)号：US20150257214A1

公开(公告)日：2015-09-10

申请号：US14639129

申请日：2015-03-05

申请人： IML International

发明人： Horng-Bin Hsu ,  Yi-Mei Li ,  Yung-Hsin Chiang

IPC分类号： H05B33/08

CPC分类号： H05B33/0812 ,  H05B33/083 ,  H05B33/0857

摘要： An LED lighting device includes first through third luminescent devices and first through third current controllers. The first and second luminescent devices are driven by a rectified AC voltage for providing light of a first color. The third luminescent device is driven by the rectified AC voltage for providing light of a second color different from the first color. The first through third current controllers are configured to regulate the current flowing through the first through third current controllers according to a first current setting, a second current setting and a third current setting, respectively. The color rendering index of the LED lighting device can thus be adjusted flexibly.

摘要翻译： LED照明装置包括第一至第三发光装置和第一至第三电流控制器。 第一和第二发光装置由用于提供第一颜色的光的整流AC电压驱动。 第三发光装置由整流的AC电压驱动，以提供不同于第一颜色的第二颜色的光。 第一至第三电流控制器被配置为分别根据第一电流设置，第二电流设置和第三电流设置来调节流过第一至第三电流控制器的电流。 因此可以灵活地调整LED照明装置的显色指数。