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公开(公告)号：US09357607B2
公开(公告)日：2016-05-31
申请号：US14124733
申请日：2012-06-04
CPC分类号： H05B33/0845 , H05B33/0812 , H05B33/0815 , H05B33/083 , H05B33/0842 , H05B33/0851 , H05B37/02 , Y02B20/347 , Y02B20/348
摘要： A LED light source comprises—a full bridge rectifier equipped with a first input terminal and a second input terminal for coupling to output terminals of the phase cut dimmer, —a series arrangement comprising N LED loads, a first and second end of said series arrangement being coupled to a first output terminal and a second output terminal of the full bridge rectifier respectively, —control means for during a period of the rectified AC supply voltage subsequently making the LED loads comprised in the first series arrangement carry a current, one by one and in dependency of the momentary amplitude of the rectified AC supply voltage when the momentary amplitude increases and for subsequently making the LED loads stop carrying a current, one by one, and in dependency of the momentary amplitude of the rectified AC supply voltage when the momentary amplitude decreases, said control means controlling the current through the LED loads at zero when the output voltage of the phase cut dimmer equals zero and controlling the current through the LED loads at a value that is independent from the phase angle of the phase cut dimmer when the output voltage of the phase cut dimmer differs from zero Volt. In order to make the LED light source compatible with a phase cut dimmer, the LED light source is further equipped with—a switchable bleeder current source coupled between the first and second output terminal of the full bridge rectifier, —a latch coupled between the first and second output terminals of the full rectifier bridge and comprising a series arrangement of a resistor and a capacitor to prevent the current through the dimmer from crossing zero after a leading edge generated by the phase cut dimmer, in case the phase cut dimmer is a leading edge phase cut dimmer, —a unidirectional element arranged in series with the capacitor for preventing discharging of the capacitor via the LED loads or the adjustable bleeder current source, and—a clamp circuit coupled to the capacitor and comprising a current source for discharging the capacitor and providing a low ohmic path for the dimmer current when the dimmer is off.
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公开(公告)号：US20150061499A1
公开(公告)日：2015-03-05
申请号：US14117391
申请日：2012-05-11
申请人： Christian Hattrup , Henricus Marius Joseph Maria Kahlman , Ralph Kurt , Georg Sauerländer , Bertrand Johan Edward Hontele , Haimin Tao
发明人： Christian Hattrup , Henricus Marius Joseph Maria Kahlman , Ralph Kurt , Georg Sauerländer , Bertrand Johan Edward Hontele , Haimin Tao
IPC分类号： H05B33/08
CPC分类号： H05B33/0824 , H05B33/0809 , H05B33/0815 , H05B33/083 , Y02B20/347
摘要： A light generating device (1) is provided with at least a voltage input (21) adapted for receiving a variable voltage, at least three LED circuits (10), coupled with said voltage input (21), wherein each LED circuit (10) comprises a LED unit (14) and controllable current regulator (15) to control the current through said LED circuit (10). The light generating device (1) further comprises a controllable switch matrix (30) comprising a plurality of switches (25, 26, 27), said switch matrix (30) is configured to operate in at least three different switching modes and a controller (50), connected at least with said switch matrix (30), configured to determine said variable operating voltage and to control the switching mode of said switch matrix (30) in dependence of the determined operating voltage. To provide an efficient operation of such device (1) with a variable operating voltage, such as an AC voltage, in a first switching mode, said LED units (10) are connected parallel to each other, in a second switching mode, at least two of said LED units (10) are connected in series and in a third switching mode, said LED units 10 are connected in series with each other.
摘要翻译： 光发生装置（1）至少设置有用于接收可变电压的电压输入（21），与所述电压输入（21）耦合的至少三个LED电路（10），其中每个LED电路（10） 包括LED单元（14）和可控电流调节器（15），以控制通过所述LED电路（10）的电流。 光产生装置（1）还包括可控开关矩阵（30），其包括多个开关（25,26,27），所述开关矩阵（30）被配置为以至少三种不同的开关模式操作，以及控制器 至少与所述开关矩阵（30）相连接，被配置为确定所述可变工作电压并且根据所确定的工作电压来控制所述开关矩阵（30）的开关模式。 为了在第一开关模式中提供具有诸如AC电压的可变工作电压的这种装置（1）的有效操作，所述LED单元（10）以第二开关模式至少并联连接 两个所述LED单元（10）串联连接，在第三开关模式下，所述LED单元10彼此串联连接。
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公开(公告)号：US20140197740A1
公开(公告)日：2014-07-17
申请号：US14239166
申请日：2012-08-21
IPC分类号： H05B33/08
CPC分类号： H05B33/0815 , H05B33/083
摘要： A LED light source comprises a first rectifier (DB1) having input terminals coupled to an AC voltage source and output terminals connected by a first series arrangement comprising N LED loads and further comprises circuitry (I1, I2, I3, CC) for making the LED loads one by one carry a current when the momentary value of the AC voltage increases and one by one stop carrying a current when the momentary value of the AC voltage decreases. The LED light source also comprises a second rectifier (DB2) having input terminals coupled to the AC voltage source via a reactive element and LED1 LED2 LED3 output terminals connected by a second series arrangement comprising M LED loads and further comprises circuitry (I4) for making the LED loads one by one carry a current when the momentary value of the AC voltage present at the input terminals of the second rectifier increases and one by one stop carrying a current when the momentary value of the AC voltage decreases.
摘要翻译： LED光源包括具有耦合到AC电压源的输入端和通过包括N个LED负载的第一串联装置连接的输出端的第一整流器（DB1），并且还包括用于制造LED的电路（I1，I2，I3，CC） 当交流电压的瞬时值增加时，逐个负载一个负载一个电流，并且当交流电压的瞬时值减小时一个接一个地停止传输电流。 LED光源还包括具有经由电抗元件耦合到AC电压源的输入端的第二整流器（DB2），以及由包括M LED负载的第二串联装置连接的LED1 LED2 LED3输出端子，并且还包括用于制造的电路（I4） 当交流电压的瞬时值减小时，当第二整流器的输入端存在的交流电压的瞬时值增加时，一个接一个地负载电流。
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公开(公告)号：US20140119046A1
公开(公告)日：2014-05-01
申请号：US14124097
申请日：2012-06-06
申请人： Ralph Kurt , Stefan Marcus Verbrugh , Jorrit Ernst De Vries , Henricus Marius Joseph Maria Kahlman
发明人： Ralph Kurt , Stefan Marcus Verbrugh , Jorrit Ernst De Vries , Henricus Marius Joseph Maria Kahlman
IPC分类号： H05B33/08
CPC分类号： H05B33/0869 , F21V23/0457 , G01J1/0425 , G01J1/1626 , G01J3/505 , G01J2001/4252
摘要： There is provided an arrangement for light balancing. The arrangement provides light balancing and robust flux feedback and comprises a light source array, a plurality of light sources arranged as a plurality of strings of individual light emitting diodes, at least one light guide structure, and at least one optical sensor. The arrangement provides feedback relating to the optical contribution for each one of the plurality of strings of individual light emitting diodes and is thereby maintaining the emitted light at a balanced level.
摘要翻译： 提供了用于光平衡的布置。 该装置提供光平衡和稳健的通量反馈，并且包括光源阵列，布置为多个单独的发光二极管串的多个光源，至少一个导光结构和至少一个光学传感器。 这种布置提供了与单个发光二极管的多个串中的每一个的光学贡献有关的反馈，从而将发射的光保持在平衡的水平。
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公开(公告)号：US09345080B2
公开(公告)日：2016-05-17
申请号：US14239166
申请日：2012-08-21
IPC分类号： H05B33/08
CPC分类号： H05B33/0815 , H05B33/083
摘要： A LED light source comprises a first rectifier (DB1) having input terminals coupled to an AC voltage source and output terminals connected by a first series arrangement comprising N LED loads and further comprises circuitry (I1, I2, I3, CC) for making the LED loads one by one carry a current when the momentary value of the AC voltage increases and one by one stop carrying a current when the momentary value of the AC voltage decreases. The LED light source also comprises a second rectifier (DB2) having input terminals coupled to the AC voltage source via a reactive element and output terminals connected by a second series arrangement comprising M LED loads and further comprises circuitry (I4) for making the LED loads one by one carry a current when the momentary value of the AC voltage present at the input terminals of the second rectifier increases and one by one stop carrying a current when the momentary value of the AC voltage decreases.
摘要翻译： LED光源包括具有耦合到AC电压源的输入端和通过包括N个LED负载的第一串联装置连接的输出端的第一整流器（DB1），并且还包括用于制造LED的电路（I1，I2，I3，CC） 当交流电压的瞬时值增加时，逐个负载一个负载一个电流，并且当交流电压的瞬时值减小时一个接一个地停止传输电流。 LED光源还包括具有经由电抗元件耦合到AC电压源的输入端子的第二整流器（DB2），以及由包括M LED负载的第二串联装置连接的输出端子，还包括用于使LED负载 当交流电压的瞬时值减小时，当存在于第二整流器的输入端的交流电压的瞬时值增加并且一个接一个地停止传输电流时，一个接一个地携带电流。
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公开(公告)号：US09301356B2
公开(公告)日：2016-03-29
申请号：US14117391
申请日：2012-05-11
申请人： Christian Hattrup , Henricus Marius Joseph Maria Kahlman , Ralph Kurt , Georg Sauerländer , Bertrand Johan Edward Hontele , Haimin Tao
发明人： Christian Hattrup , Henricus Marius Joseph Maria Kahlman , Ralph Kurt , Georg Sauerländer , Bertrand Johan Edward Hontele , Haimin Tao
CPC分类号： H05B33/0824 , H05B33/0809 , H05B33/0815 , H05B33/083 , Y02B20/347
摘要： A light generating device (1) is provided with at least a voltage input (21) adapted for receiving a variable voltage, at least three LED circuits (10), coupled with said voltage input (21), wherein each LED circuit (10) comprises a LED unit (14) and controllable current regulator (15) to control the current through said LED circuit (10). The light generating device (1) further comprises a controllable switch matrix (30) comprising a plurality of switches (25, 26, 27), said switch matrix (30) is configured to operate in at least three different switching modes and a controller (50), connected at least with said switch matrix (30), configured to determine said variable operating voltage and to control the switching mode of said switch matrix (30) in dependence of the determined operating voltage. To provide an efficient operation of such device (1) with a variable operating voltage, such as an AC voltage, in a first switching mode, said LED units (10) are connected parallel to each other, in a second switching mode, at least two of said LED units (10) are connected in series and in a third switching mode, said LED units 10 are connected in series with each other.
摘要翻译： 光发生装置（1）至少设置有用于接收可变电压的电压输入（21），与所述电压输入（21）耦合的至少三个LED电路（10），其中每个LED电路（10） 包括LED单元（14）和可控电流调节器（15），以控制通过所述LED电路（10）的电流。 光产生装置（1）还包括可控开关矩阵（30），其包括多个开关（25,26,27），所述开关矩阵（30）被配置为以至少三种不同的开关模式操作，以及控制器 至少与所述开关矩阵（30）相连接，被配置为确定所述可变工作电压并且根据所确定的工作电压来控制所述开关矩阵（30）的开关模式。 为了在第一开关模式中提供具有诸如AC电压的可变工作电压的这种装置（1）的有效操作，所述LED单元（10）在第二开关模式中至少并联连接 两个所述LED单元（10）串联连接，在第三开关模式下，所述LED单元10彼此串联连接。
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公开(公告)号：US09210757B2
公开(公告)日：2015-12-08
申请号：US14124743
申请日：2012-05-30
CPC分类号： H05B33/0845 , H05B33/0812 , H05B33/0815 , H05B33/083 , H05B33/0842 , H05B33/0851 , H05B37/02 , Y02B20/347 , Y02B20/348
摘要： A string of LED loads is supplied by means of a rectified mains voltage. A cathode of each LED load is coupled to ground by means of a string. The strings are made conductive and non-conductive one by one in dependency of the instantaneous value of the rectified mains using both voltage and current sensing.
摘要翻译： 一串LED负载通过整流电源电压供电。 每个LED负载的阴极通过一个串耦合到地面。 根据使用电压和电流感测的整流电源的瞬时值，这些串是逐个导通和不导电的。
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公开(公告)号：US20140375223A1
公开(公告)日：2014-12-25
申请号：US14124731
申请日：2012-05-30
IPC分类号： H05B33/08
CPC分类号： H05B33/0845 , H05B33/0812 , H05B33/0815 , H05B33/083 , H05B33/0842 , H05B33/0851 , H05B37/02 , Y02B20/347 , Y02B20/348
摘要： LED light source suitable for use with a phase cut dimmer (III), comprising •input terminals (K1, K2) for connection to an AC supply voltage, •a rectifier (I) coupled to the input terminals, 108 a series arrangement comprising N LEDs (LL1, LL2, LL3) coupled to the rectifier, •control circuitry (EX) for sequentially activating (deactivating) the LEDs as the supply voltage increases (decreases), wherein the control circuitry comprises: •N controllable current regulators, each regulator being coupled between the cathode of a LED and ground and comprising a transistor and one impedance in series, •a global current control circuit (X) coupled to the control electrodes of said transistors and comprising circuitry for adjusting the voltage at said control electrodes in dependency of the phase angle, •a series arrangement of a switch (S) and a capacitor (C1) coupled- to the rectifier and •means (VIII) for rendering said switch conductive in case the AC supply voltage drops below a reference value.
摘要翻译： 适合与相位调光器（III）一起使用的LED光源，包括：用于连接到AC电源电压的输入端子（K1，K2）;•耦合到输入端子的整流器（108），包括N 耦合到整流器的LED（LL1，LL2，LL3），•随着电源电压增加（减少），顺序地激活（停用）LED的控制电路（EX），其中控制电路包括：·N个可控电流调节器， 耦合在LED的阴极和地之间并且包括串联的晶体管和一个阻抗;·耦合到所述晶体管的控制电极的全局电流控制电路（X），并且包括用于依赖地调节所述控制电极处的电压的电路 •相对于整流器耦合的开关（S）和电容器（C1）的串联布置;以及用于在所述交流电源电压低于所述情况下使所述开关导通的装置（VIII） 参考值。
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公开(公告)号：US20140103825A1
公开(公告)日：2014-04-17
申请号：US14124743
申请日：2012-05-30
IPC分类号： H05B33/08
CPC分类号： H05B33/0845 , H05B33/0812 , H05B33/0815 , H05B33/083 , H05B33/0842 , H05B33/0851 , H05B37/02 , Y02B20/347 , Y02B20/348
摘要： A string of LED loads is supplied by means of a rectified mains voltage. A cathode of each LED load is coupled to ground by means of a string. The strings are made conductive and non-conductive one by one in dependency of the instantaneous value of the rectified mains using both voltage and current sensing.
摘要翻译： 一串LED负载通过整流电源电压供电。 每个LED负载的阴极通过一个串耦合到地面。 根据使用电压和电流感测的整流电源的瞬时值，这些串是逐个导通和不导电的。
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公开(公告)号：US20140103823A1
公开(公告)日：2014-04-17
申请号：US14124733
申请日：2012-06-04
IPC分类号： H05B33/08
CPC分类号： H05B33/0845 , H05B33/0812 , H05B33/0815 , H05B33/083 , H05B33/0842 , H05B33/0851 , H05B37/02 , Y02B20/347 , Y02B20/348
摘要： A LED light source comprises a full bridge rectifier equipped with a first input terminal and a second input terminal for coupling to output terminals of the phase cut dimmer, a series arrangement comprising N LED loads, a first and second end of said series arrangement being coupled to a first output terminal and a second output terminal of the full bridge rectifier respectively, control means for during a period of the rectified AC supply voltage subsequently making the LED loads comprised in the first series arrangement carry a current, one by one and in dependency of the momentary amplitude of the rectified AC supply voltage when the momentary amplitude increases and for subsequently making the LED loads stop carrying a current, one by one, and in dependency of the momentary amplitude of the rectified AC supply voltage when the momentary amplitude decreases, said control means controlling the current through the LED loads at zero when the output voltage of the phase cut dimmer equals zero and controlling the current through the LED loads at a value that is independent from the phase angle of the phase cut dimmer when the output voltage of the phase cut dimmer differs from zero Volt. In order to make the LED light source compatible with a phase cut dimmer, the LED light source is further equipped with a switchable bleeder current source coupled between the first and second output terminal of the full bridge rectifier, a latch coupled between the first and second output terminals of the full rectifier bridge and comprising a series arrangement of a resistor and a capacitor to prevent the current through the dimmer from crossing zero after a leading edge generated by the phase cut dimmer, in case the phase cut dimmer is a leading edge phase cut dimmer, a unidirectional element arranged in series with the capacitor for preventing discharging of the capacitor via the LED loads or the adjustable bleeder current source, and a clamp circuit coupled to the capacitor and comprising a current source for discharging the capacitor and providing a low ohmic path for the dimmer current when the dimmer is off.
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