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公开(公告)号：US20130342124A1
公开(公告)日：2013-12-26
申请号：US13921523
申请日：2013-06-19
发明人： Tsung-Wei HUANG , Shui-Mu LIN , Huan-Chien YANG , Nang-Ching YEUNG , Ti-Ti LIU
IPC分类号： H05B33/08
CPC分类号： H05B33/0839 , H05B33/0815 , H05B33/0827 , Y02B20/347
摘要： A LED driver using a PWM signal for dimming control includes a power converter and a current regulator. The power converter provides an output voltage and a load current for a plurality of LEDs. The current regulator provides a load current dependent signal for the power converter to speed up load transient response caused by variation of the load current, to reduce the ripple of the output voltage, and thereby to avoid audio noise during PWM dimming.
摘要翻译： 使用PWM信号进行调光控制的LED驱动器包括功率转换器和电流调节器。 功率转换器为多个LED提供输出电压和负载电流。 电流调节器为功率转换器提供负载电流相关信号，以加速由负载电流变化引起的负载瞬态响应，以减少输出电压的纹波，从而避免PWM调光期间的音频噪声。
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公开(公告)号：US20130162155A1
公开(公告)日：2013-06-27
申请号：US13776409
申请日：2013-02-25
发明人： Mitsuhiro Matsuda , Naoko Iwai , Hajime Osaki , Hiroshi Kubota , Takuro Hiramatsu , Katsusuke Uchino , Masatoshi Kumagai
IPC分类号： H05B33/08
CPC分类号： H05B33/0839 , H05B33/0815
摘要： A lighting circuit according to embodiments includes: a self-hold element connected in series to an AC power source that generates power for lighting an illumination load, together with the illumination load, the self-hold element being configured to control supply of the power provided by the AC power source to the illumination load by the self-hold element being turned on/off; a noise prevention circuit connected in parallel to the self-hold element; and a damping circuit configured to connect a damping resistance to the noise prevention circuit parallely only for a predetermined period from turning-on of the self-hold element, thereby preventing the self-hold element from being repeatedly turned on/off during a period in which the self-hold element is on under normal conditions, due to a transient during power supply.
摘要翻译： 根据实施例的照明电路包括：与保持照明负载一起产生电力的AC电源串联连接的自保持元件以及照明负载，所述自保持元件被配置为控制所提供的电力的供应 通过所述AC电源通过所述自保持元件被接通/断开而对所述照明负载; 与自保持元件并联连接的防噪电路; 以及阻尼电路，其被配置为将阻尼电阻与防噪声电路平行地连接在自保持元件的接通之后的预定时间段内，从而防止自保持元件在一段时间内重复地接通/断开 由于电源过程中自保持元件在正常条件下导通。
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3.发明申请POWER CONVERTER WITH COMPENSATION CIRCUIT FOR ADJUSTING OUTPUT CURRENT PROVIDED TO A CONSTANT LOAD 失效带有补偿电路的电源转换器，用于调节提供给恒定负载的输出电流公开(公告)号：US20110316446A1
公开(公告)日：2011-12-29
申请号：US12824071
申请日：2010-06-25
IPC分类号： H05B41/36
CPC分类号： H05B33/0839 , H02M3/33507 , H05B33/0815 , H05B33/0854
摘要： A power converter for constant loads includes an energy transfer element, a switch, a controller, and a compensation circuit. The energy transfer element is coupled to receive a rectified voltage having a non-blocked portion and a blocked portion, where an amount of the blocked portion corresponds to a phase angle. The controller is coupled to control switching of the switch to regulate an output current of the power converter in response to a plurality of signals. The plurality of signals includes a peak input voltage signal and a feedback signal, where the peak input voltage signal is representative of a peak input voltage of the power converter and the feedback signal is representative of the output voltage of the power converter. The compensation circuit is coupled to adjust at least one of the plurality of signals in response to the phase angle exceeding a phase angle threshold.
摘要翻译： 用于恒定负载的功率转换器包括能量传递元件，开关，控制器和补偿电路。 能量转移元件被耦合以接收具有非阻塞部分和阻塞部分的整流电压，其中阻挡部分的量对应于相位角。 控制器被耦合以响应于多个信号来控制开关的切换以调节功率转换器的输出电流。 多个信号包括峰值输入电压信号和反馈信号，其中峰值输入电压信号表示功率转换器的峰值输入电压，反馈信号代表功率转换器的输出电压。 所述补偿电路被耦合以响应于所述相位角超过相位角阈值来调整所述多个信号中的至少一个。
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4.发明申请POWER CONVERTER WITH COMPENSATION CIRCUIT FOR ADJUSTING OUTPUT CURRENT PROVIDED TO A CONSTANT LOAD 失效带有补偿电路的电源转换器，用于调节提供给恒定负载的输出电流公开(公告)号：US20130020965A1
公开(公告)日：2013-01-24
申请号：US13626735
申请日：2012-09-25
IPC分类号： H05B37/02
CPC分类号： H05B33/0839 , H02M3/33507 , H05B33/0815 , H05B33/0854
摘要： A power converter for constant loads includes an energy transfer element, a switch, a controller, and a compensation circuit. The energy transfer element is coupled to receive a rectified voltage having a blocked portion that corresponds to a phase angle. The controller is coupled to control switching of the switch to regulate an output current of the power converter in response to a plurality of signals. The plurality of signals includes a peak input voltage signal and a feedback signal. The compensation circuit is coupled to output a compensation signal to adjust at least one of the plurality of signals in response to the phase angle exceeding a phase angle threshold. The compensation circuit does not output the compensation signal and does not adjust the at least one of the plurality of signals when the phase angle is less than the phase angle threshold.
摘要翻译： 用于恒定负载的功率转换器包括能量传递元件，开关，控制器和补偿电路。 能量传递元件被耦合以接收具有对应于相位角的阻挡部分的整流电压。 控制器被耦合以响应于多个信号来控制开关的切换以调节功率转换器的输出电流。 多个信号包括峰值输入电压信号和反馈信号。 所述补偿电路被耦合以输出补偿信号，以响应于所述相位角超过相位角阈值来调整所述多个信号中的至少一个。 当相位角小于相位角阈值时，补偿电路不输出补偿信号，并且不调整多个信号中的至少一个信号。
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5.发明授权公开(公告)号：US08350497B2
公开(公告)日：2013-01-08
申请号：US13313709
申请日：2011-12-07
申请人： Mark Peting , Dale Beyer , Tsutomu Shimomura
发明人： Mark Peting , Dale Beyer , Tsutomu Shimomura
IPC分类号： H05B37/02
CPC分类号： H05B33/0839 , H05B33/0815 , H05B33/0842 , H05B37/0245 , H05B37/0263 , Y02B20/346 , Y10T307/344 , Y10T307/615
摘要： An controlled LED lighting system that operates using a single conductor to power and control LED nodes is disclosed. The controlled LED lighting system modulates control data onto a nominally constant DC signal transmitted down a single conductor serial line. Nodes coupled the serial line draw power into a local capacitor and demodulate the data signal. Each node shunts the serial line when additional power is not required such that the data signal is received by every node on the serial line.
摘要翻译： 公开了一种使用单个导体操作以控制LED节点的受控LED照明系统。 受控LED照明系统将控制数据调制到以单根导线串行线路传输的名义上恒定的直流信号上。 将串行线耦合的节点将功率吸入本地电容器并解调数据信号。 当不需要额外的功率时，每个节点分流串行线，使得数据信号由串行线上的每个节点接收。
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公开(公告)号：US08350496B2
公开(公告)日：2013-01-08
申请号：US13313693
申请日：2011-12-07
申请人： Mark Peting , Dale Beyer , Tsutomu Shimomura
发明人： Mark Peting , Dale Beyer , Tsutomu Shimomura
CPC分类号： H05B33/0839 , H05B33/0815 , H05B33/0842 , H05B37/0245 , H05B37/0263 , Y02B20/346 , Y10T307/344 , Y10T307/615
摘要： Light Emitting Diodes (LEDs) are increasingly used in illumination applications. To control multiple Light Emitting Diodes (LEDs), or any other controllable light source, this document introduces a single-wire multiple-LED power and control system. Specifically, individually controlled LED units are arranged in a series configuration that is driven by a control unit located at the head of the series. Each of the individually controlled LED units may comprise more than one LED that is also individually controllable. The head-end control unit provides both electrical power and control signals down a single wire to drive all of the LED units in the series in a manner that allows each LED unit to be controlled individually or in assigned groups.
摘要翻译： 发光二极管（LED）越来越多地用于照明应用中。 为了控制多个发光二极管（LED）或任何其他可控光源，本文件介绍了单线多LED电源和控制系统。 具体地，单独控制的LED单元被布置成由位于系列的头部的控制单元驱动的串联配置。 每个独立控制的LED单元可以包括多个也是可单独控制的LED。 前端控制单元提供单个电线下的电力和控制信号，以使得可以单独控制或分配组中的每个LED单元来控制串联中的所有LED单元。
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公开(公告)号：US20120074863A1
公开(公告)日：2012-03-29
申请号：US13313693
申请日：2011-12-07
申请人： Tsutomu Shimomura , Mark Peting , Dale Beyer
发明人： Tsutomu Shimomura , Mark Peting , Dale Beyer
IPC分类号： H05B41/36
CPC分类号： H05B33/0839 , H05B33/0815 , H05B33/0842 , H05B37/0245 , H05B37/0263 , Y02B20/346 , Y10T307/344 , Y10T307/615
摘要： Light Emitting Diodes (LEDs) are increasingly used in illumination applications. To control multiple Light Emitting Diodes (LEDs), or any other controllable light source, this document introduces a single-wire multiple-LED power and control system. Specifically, individually controlled LED units are arranged in a series configuration that is driven by a control unit located at the head of the series. Each of the individually controlled LED units may comprise more than one LED that is also individually controllable. The head-end control unit provides both electrical power and control signals down a single wire to drive all of the LED units in the series in a manner that allows each LED unit to be controlled individually or in assigned groups.
摘要翻译： 发光二极管（LED）越来越多地用于照明应用中。 为了控制多个发光二极管（LED）或任何其他可控光源，本文件介绍了单线多LED电源和控制系统。 具体地，单独控制的LED单元被布置成由位于系列的头部的控制单元驱动的串联配置。 每个独立控制的LED单元可以包括多个也是可单独控制的LED。 前端控制单元提供单个电线下的电力和控制信号，以使得可以单独或分配组中的每个LED单元被控制的方式来驱动该系列中的所有LED单元。
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公开(公告)号：US09119257B2
公开(公告)日：2015-08-25
申请号：US13944935
申请日：2013-07-18
申请人： INNOLUX CORPORATION
发明人： Cheng-Feng Yang
CPC分类号： H05B33/0839 , H05B33/0815 , H05B33/0827
摘要： A dimming method is provided. The dimming method includes steps as follows: determining whether a duty ratio of a first pulse width modulation signal is larger than a threshold duty ratio; when the duty ratio of the first PWM signal is smaller than the threshold duty ratio, the first pulse width modulation signal is transformed to a second pulse width modulation signal by a frequency conversion and a phase shift according to a pulse information signal, when the duty ratio of the first pulse width modulation signal is larger than the threshold duty ratio, adjusting a predetermined dimming current according to the pulse information signal, wherein the threshold duty ratio is set according to a number of the channel and the predetermined dimming current.
摘要翻译： 提供了一种调光方法。 调光方法包括以下步骤：确定第一脉宽调制信号的占空比是否大于阈值占空比; 当第一PWM信号的占空比小于阈值占空比时，当占空比时，第一脉冲宽度调制信号通过频率转换和相移根据脉冲信息信号被变换为第二脉冲宽度调制信号 第一脉冲宽度调制信号的比率大于阈值占空比，根据脉冲信息信号调整预定的调光电流，其中阈值占空比根据通道的数量和预定的调光电流来设定。
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公开(公告)号：US20140042919A1
公开(公告)日：2014-02-13
申请号：US13944935
申请日：2013-07-18
申请人： INNOLUX CORPORATION
发明人： Cheng-Feng Yang
IPC分类号： H05B33/08
CPC分类号： H05B33/0839 , H05B33/0815 , H05B33/0827
摘要： A dimming method is provided. The dimming method includes steps as follows: determining whether a duty ratio of a first pulse width modulation signal is larger than a threshold duty ratio; when the duty ratio of the first PWM signal is smaller than the threshold duty ratio, the first pulse width modulation signal is transformed to a second pulse width modulation signal by a frequency conversion and a phase shift according to a pulse information signal, when the duty ratio of the first pulse width modulation signal is larger than the threshold duty ratio, adjusting a predetermined dimming current according to the pulse information signal, wherein the threshold duty ratio is set according to a number of the channel and the predetermined dimming current.
摘要翻译： 提供了一种调光方法。 调光方法包括以下步骤：确定第一脉宽调制信号的占空比是否大于阈值占空比; 当第一PWM信号的占空比小于阈值占空比时，当占空比时，第一脉冲宽度调制信号通过频率转换和相移根据脉冲信息信号被变换为第二脉冲宽度调制信号 第一脉冲宽度调制信号的比率大于阈值占空比，根据脉冲信息信号调整预定的调光电流，其中阈值占空比根据通道的数量和预定的调光电流来设定。
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公开(公告)号：US08427070B2
公开(公告)日：2013-04-23
申请号：US12860528
申请日：2010-08-20
申请人： Mitsuhiro Matsuda
发明人： Mitsuhiro Matsuda
CPC分类号： H05B33/0839 , H05B33/0815
摘要： A lighting circuit according to embodiments includes: a self-hold element connected in series to an AC power source that generates power for lighting an illumination load, together with the illumination load, the self-hold element being configured to control supply of the power provided by the AC power source to the illumination load by the self-hold element being turned on/off; a noise prevention circuit connected in parallel to the self-hold element; and a damping circuit configured to connect a damping resistance to the noise prevention circuit parallely only for a predetermined period from turning-on of the self-hold element, thereby preventing the self-hold element from being repeatedly turned on/off during a period in which the self-hold element is on under normal conditions, due to a transient during power supply.
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