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公开(公告)号：US20170164435A1
公开(公告)日：2017-06-08
申请号：US15438737
申请日：2017-02-21
发明人： Hyung Jin LEE , Hyun Gu Kang , Sang Wook Han
IPC分类号： H05B33/08
CPC分类号： H05B33/0851 , H05B33/0809 , H05B33/0824 , H05B33/083 , H05B33/0845 , H05B39/044
摘要： An LED lighting apparatus according to exemplary embodiments includes a rectification circuit configured to rectify a modulated AC voltage to generate a drive voltage, an LED driving module connected to a plurality of LED groups and configured to apply a drive current to at least one of the plurality of LED groups according to a level of the drive voltage, and a dimming level detector configured to detect a dimming level corresponding to the drive voltage. The LED driving module is configured to compare the detected dimming level to a reference value and block the drive current based on a result of the comparison.
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12.发明申请公开(公告)号：US20150245427A1
公开(公告)日：2015-08-27
申请号：US14434031
申请日：2013-10-07
发明人： Hye Man Jung , Hyun Gu Kang , Sang Wook Han
IPC分类号： H05B33/08
CPC分类号： H05B33/083 , H05B33/0812 , H05B33/0824
摘要： Disclosed herein are a light emitting diode (LED) driving apparatus and driving method for continuously driving an LED. According to the present invention, an LED driving apparatus and driving method for continuously driving an LED capable of compensating for a light output of an LED lighting using an energy chargeable and dischargeable element and/or circuit are proposed.
摘要翻译： 这里公开了一种用于连续驱动LED的发光二极管（LED）驱动装置和驱动方法。 根据本发明，提出了一种LED驱动装置和驱动方法，用于使用能量可充放电元件和/或电路连续驱动能够补偿LED照明的光输出的LED。
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公开(公告)号：US10791597B2
公开(公告)日：2020-09-29
申请号：US16044515
申请日：2018-07-25
发明人： Keith Hopwood , Sung Ho Jin , Hyung Jin Lee , Sang Wook Han
摘要： An LED lighting apparatus capable of color temperature control includes a color temperature controller to receive a color temperature selection signal and output first and second control signals; a LED driver connected a plurality of LED groups; and a LED selection circuit including a first switch connected to a first node to which a rectified voltage is applied and receiving the first control signal, a first LED group selectively connected to the first node by the first switch, a second LED group connected in series with the first LED group, a third LED group selectively connected to the first node by the first switch, a fourth LED group connected in series with the third LED group, and a second switch for selectively connecting the output terminal of the second LED group or the fourth LED group to the LED driver by receiving the second control signal.
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公开(公告)号：US10362650B2
公开(公告)日：2019-07-23
申请号：US16039349
申请日：2018-07-19
发明人： Kwang Bea Lim , Sung Ho Jin , Sang Wook Han , Young Do Jong
摘要： A driving circuit for a light emitting diode connected to a TRIAC dimmer configured to modulate an input AC voltage depending on a selected dimming level including a rectifier configured to full-wave rectify the modulated AC voltage output from the TRIAC dimmer to generate and output a driving voltage, a driving module configured to receive the driving voltage of the rectifier to detect the selected dimming level and drive a plurality of light emitting diode groups depending on the detected dimming level, and a bleeder circuit configured to provide a bleeder current to the TRIAC dimmer, in which the bleeder circuit is configured to provide the bleeder current only for a preset on-duty time.
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15.发明授权公开(公告)号：US10244596B2
公开(公告)日：2019-03-26
申请号：US15519274
申请日：2015-10-14
发明人： Sung Ho Jin , Sang Wook Han , Young Do Jung , Hyung Jin Lee
IPC分类号： H05B33/08
摘要： Disclosed are a light emitting diode (LED) driver circuit having improved flicker performance and an alternating current-driving type LED lighting device including the same. The LED driver circuit can remove an LED off period using a charging and discharging circuit during a compensation period so as to reduce light output deviation of an LED lighting device, and provide a driving voltage to another element of the LED lighting device, using the charging and discharging circuit during an additional discharging period so as to simultaneously improve power efficiency.
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公开(公告)号：US10051702B2
公开(公告)日：2018-08-14
申请号：US15152256
申请日：2016-05-11
发明人： Kwang Bea Lim , Sung Ho Jin , Sang Wook Han , Young Do Jong
摘要： Disclosed herein are a driving circuit and a lighting apparatus for a light emitting diode capable of improving a flicker, light efficiency, and electrical characteristics. The disclosed driving circuit for a light emitting diode includes: a dimmer modulating an AC voltage input depending on a selected dimming level; a rectifier full-wave rectifying the modulated AC voltage output from the dimmer to generate and output a driving voltage; and a driving module receiving the driving voltage of the rectifier to detect the selected dimming level and controlling a driving mode of a plurality of light emitting diode groups depending on the detected dimming level, in which the driving module selects one of a resistance driving mode driving all the plurality of light emitting diode groups and a sequential driving mode sequentially driving the plurality of light emitting diode groups to improve light efficiency and electrical characteristics.
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公开(公告)号：US09807828B2
公开(公告)日：2017-10-31
申请号：US15438737
申请日：2017-02-21
发明人： Hyung Jin Lee , Hyun Gu Kang , Sang Wook Han
CPC分类号： H05B33/0851 , H05B33/0809 , H05B33/0824 , H05B33/083 , H05B33/0845 , H05B39/044
摘要： An LED lighting apparatus according to exemplary embodiments includes a rectification circuit configured to rectify a modulated AC voltage to generate a drive voltage, an LED driving module connected to a plurality of LED groups and configured to apply a drive current to at least one of the plurality of LED groups according to a level of the drive voltage, and a dimming level detector configured to detect a dimming level corresponding to the drive voltage. The LED driving module is configured to compare the detected dimming level to a reference value and block the drive current based on a result of the comparison.
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18.发明授权LED dimmer, LED lighting device comprising same, and method for controlling dimming of LED lighting device 有权LED调光器，包括其的LED照明装置以及用于控制LED照明装置的调光的方法公开(公告)号：US09220143B2
公开(公告)日：2015-12-22
申请号：US14397472
申请日：2013-04-25
发明人： Hye Man Jung , Hyun Gu Kang , Jin Cheol Shin , Sang Wook Han
CPC分类号： H05B33/0845 , H05B33/0812 , H05B33/0815 , H05B33/0818 , H05B33/0824 , Y02B20/343 , Y02B20/345 , Y02B20/346
摘要： A light-emitting diode (LED) dimmer for an LED lighting device, including a power switch, a drive voltage supply, and a LED light-emitting unit. Operating zones of the LED lighting device are changed in accordance with the switching of the power switch, and a dimming level for a next operating zone is determined on the basis of the dimming level and time while the power switch was on during the previous operating period.
摘要翻译： 一种用于LED照明装置的发光二极管（LED）调光器，包括电源开关，驱动电压源和LED发光单元。 根据电源开关的切换来改变LED照明装置的工作区域，并且在上一个操作期间电源开关接通时，基于调光水平和时间确定下一个操作区域的调光水平 。
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19.发明申请LED DIMMER, LED LIGHTING DEVICE COMPRISING SAME, AND METHOD FOR CONTROLLING DIMMING OF LED LIGHTING DEVICE 有权LED调光器，包含其的LED照明装置以及用于控制LED照明装置的调光方法公开(公告)号：US20150084541A1
公开(公告)日：2015-03-26
申请号：US14397472
申请日：2013-04-25
发明人： Hye Man Jung , Hyun Gu Kang , Jin Cheol Shin , Sang Wook Han
IPC分类号： H05B33/08
CPC分类号： H05B33/0845 , H05B33/0812 , H05B33/0815 , H05B33/0818 , H05B33/0824 , Y02B20/343 , Y02B20/345 , Y02B20/346
摘要： A light-emitting diode (LED) dimmer for an LED lighting device, including a power switch, a drive voltage supply, and a LED light-emitting unit. Operating zones of the LED lighting device are changed in accordance with the switching of the power switch, and a dimming level for a next operating zone is determined on the basis of the dimming level and time while the power switch was on during the previous operating period.
摘要翻译： 一种用于LED照明装置的发光二极管（LED）调光器，包括电源开关，驱动电压源和LED发光单元。 根据电源开关的切换来改变LED照明装置的工作区域，并且在上一个操作期间电源开关接通时，基于调光水平和时间确定下一个操作区域的调光水平 。
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公开(公告)号：US20150028760A1
公开(公告)日：2015-01-29
申请号：US14339084
申请日：2014-07-23
发明人： Kang Nyung LEE , Sang Wook Han , Hyun Gu Kang
IPC分类号： H05B33/08
CPC分类号： H05B33/0824
摘要： A light-emitting diode (LED) luminaire includes a light-emitting part, a rectification unit configured to perform full-wave rectification of an alternating current (AC) voltage to supply a first drive voltage to the light-emitting part, a power factor compensation unit configured to be charged with the first drive voltage during a charge period and supply a second drive voltage to the light-emitting part during a compensation period, and an LED drive controller configured to determine a voltage level of the first drive voltage or the second drive voltage and control sequential driving of the first LED group to the nth LED group according to the determined voltage level, such that at least 60% of the LEDs comprising the light-emitting part emit light during the compensation period. The light-emitting part is configured to emit light by receiving the first drive voltage or the second drive voltage.
摘要翻译： 发光二极管（LED）灯具包括发光部分，整流单元，被配置为执行交流（AC）电压的全波整流以向发光部分提供第一驱动电压，功率因数 补偿单元，其被配置为在充电期间对第一驱动电压进行充电，并且在补偿期间向发光部提供第二驱动电压;以及LED驱动控制器，被配置为确定第一驱动电压的电压电平或 第二驱动电压和根据所确定的电压电平将第一LED组按顺序驱动到第n个LED组，使得在补偿周期期间包括发光部分的至少60％的LED发光。 发光部被配置为通过接收第一驱动电压或第二驱动电压而发光。
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