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1. 发明授权

US09089020B2 Dimming signal generation device and illumination control system using same 有权
标题翻译：调光信号发生装置和使用其的照明控制系统
公开(公告)号：US09089020B2
公开(公告)日：2015-07-21
申请号：US13459493
申请日：2012-04-30
申请人： Koji Watanabe , Hiromitsu Mizukawa
发明人： Koji Watanabe , Hiromitsu Mizukawa
IPC分类号： H05B33/08
CPC分类号： H05B33/0815 , H05B33/0845
摘要： A dimming signal generation device outputs a square wave voltage signal having an on-duty corresponding to a dimming level to a dimming signal line from a time point when a predetermined time period has elapsed after power-up. In the dimming signal generation device, a specific voltage is outputted to the dimming signal line for the predetermined time period after the power-up.
摘要翻译：调光信号发生装置从上电开始经过规定时间后的时间点向调光信号线输出具有与调光电平相对应的导通占空比的方波电压信号。在调光信号发生装置中，在上电之后的预定时间段内，将特定电压输出到调光信号线。

2. 发明授权

US08872444B2 Lighting device for solid-state light source and illumination apparatus including same 有权
标题翻译：用于固态光源的照明装置和包括其的照明装置
公开(公告)号：US08872444B2
公开(公告)日：2014-10-28
申请号：US13446257
申请日：2012-04-13
申请人： Koji Watanabe , Kazuhiro Nisimoto , Hiromitsu Mizukawa
发明人： Koji Watanabe , Kazuhiro Nisimoto , Hiromitsu Mizukawa
IPC分类号： H05B37/02 , H05B33/08
CPC分类号： H05B33/0815 , Y02B20/347
摘要： A lighting device for a solid-state light source includes a DC power source circuit section which flows a current in a solid-state light source by using a charging/discharging current or either one of charging and discharging currents of a inductor connected in series to a switching element, and a current control section having a first switching control unit for changing an ON width of the switching element depending on a dimming level and a second switching control unit for controlling an ON timing of the switching element. The second switching control unit changes a time until the switching element is turned on from a zero-crossing of the discharging current of the inductor such that the time becomes substantially the same when the dimming level is equal to or greater than a predetermined level, and the time becomes longer when the dimming level is less than the predetermined level.
摘要翻译：用于固态光源的照明装置包括直流电源电路部分，其通过使用充电/放电电流或串联连接的电感器的充电和放电电流中的任一个流过固态光源中的电流开关元件和电流控制部分，具有用于根据调光电平改变开关元件的导通宽度的第一开关控制单元和用于控制开关元件的导通定时的第二开关控制单元。第二开关控制单元从电感器的放电电流的过零点改变直到开关元件接通的时间，使得当调光水平等于或大于预定水平时，时间变得基本相同，以及当调光水平小于预定水平时，时间变长。

3. 发明授权

US08482222B2 Lighting device and light fixture using lighting device 有权
标题翻译：照明装置和灯具采用照明装置
公开(公告)号：US08482222B2
公开(公告)日：2013-07-09
申请号：US13083170
申请日：2011-04-08
申请人： Akinori Hiramatu , Hiromitsu Mizukawa , Yoshifumi Kuroki
发明人： Akinori Hiramatu , Hiromitsu Mizukawa , Yoshifumi Kuroki
IPC分类号： G05F1/00 , H05B37/00
CPC分类号： H02M1/36 , H02M3/156 , H05B33/0815 , H05B33/0821 , H05B33/0887
摘要： A lighting device reliably detects a status (i.e., existence or absence) of a load connection, and enables or disables power output based on the detected load connection status. The device includes a DC-DC converter having input and output terminals, and a DC current conducting element coupled across the output terminals. A load terminal is also coupled across the output terminals and configured to receive an LED unit. A load detection circuit coupled between an input terminal and the load terminal detects the connection status of an LED unit via a DC current passing through the load terminal, and controls a switching operation of the DC-DC converter based on the detected connection status. A diode coupled between the load terminal and the DC current conducting element blocks a DC current path from the input terminals to the load detection circuit through the DC current conducting element.
摘要翻译：照明装置可靠地检测负载连接的状态（即，是否存在），并且基于检测到的负载连接状态来启用或禁用电力输出。该装置包括具有输入和输出端子的DC-DC转换器和耦合在输出端子两端的直流电流传导元件。负载端子也耦合在输出端子之间并被配置为接收LED单元。耦合在输入端子和负载端子之间的负载检测电路经由穿过负载端子的直流电流来检测LED单元的连接状态，并且基于检测到的连接状态来控制DC-DC转换器的切换操作。耦合在负载端子和直流导电元件之间的二极管通过直流电导体元件阻挡从输入端子到负载检测电路的直流电流路径。

4. 发明申请

US20110204823A1 LED DRIVER CIRCUIT WITH OPEN LOAD DETECTION AND ASSOCIATED CONTROL METHOD 有权
标题翻译：具有开路负载检测和相关控制方法的LED驱动电路
公开(公告)号：US20110204823A1
公开(公告)日：2011-08-25
申请号：US13031836
申请日：2011-02-22
申请人： Hiromitsu Mizukawa , Kazuhiro Kumada , Yoshifumi Kuroki
发明人： Hiromitsu Mizukawa , Kazuhiro Kumada , Yoshifumi Kuroki
IPC分类号： H05B41/285
CPC分类号： H05B33/089 , H05B33/0815 , Y02B20/347
摘要： An LED driver circuit prevents an increase in output voltage of a DC/DC converter in an open circuit condition associated with removal or failure of an LED lighting device. A DC power source provides a first DC voltage across positive and negative voltage rails. A DC/DC converter includes a switching element which when turned ON/OFF provides a second DC voltage across first and second ends of a capacitor which further define first and second LED lighting device connection terminals. A control circuit, upon receiving a drive power signal, turns ON/OFF the switching element to provide constant current control. A power supply circuit is coupled between the second LED lighting device connection terminal and the negative voltage rail and generates the drive power signal to the control circuit during a detected lighting condition. The power supply circuit further disables the drive power signal during a detected open circuit condition.
摘要翻译： LED驱动器电路防止在与LED照明装置的去除或故障相关的开路状态下DC / DC转换器的输出电压增加。直流电源在正负电压轨上提供第一直流电压。 DC / DC转换器包括开关元件，其在接通/断开时提供跨越电容器的第一和第二端的第二DC电压，其进一步限定第一和第二LED照明器件连接端子。控制电路在接收到驱动功率信号时，将开关元件接通/断开，以提供恒定的电流控制。电源电路耦合在第二LED照明装置连接端子和负电压轨道之间，并且在检测到的照明条件期间产生到控制电路的驱动电力信号。在检测到的开路状态期间，电源电路进一步禁止驱动电力信号。

5. 发明授权

US08723436B2 LED lighting device and illumination apparatus including same 有权
标题翻译： LED照明装置及包括其的照明装置
公开(公告)号：US08723436B2
公开(公告)日：2014-05-13
申请号：US13398078
申请日：2012-02-16
申请人： Koji Watanabe , Hiromitsu Mizukawa , Kenji Matsuda
发明人： Koji Watanabe , Hiromitsu Mizukawa , Kenji Matsuda
IPC分类号： H05B37/02
CPC分类号： H05B33/0815
摘要： An LED lighting device includes two or more switching circuits connected between a power source and an LED (light emitting diode) unit, an inrush current limiting circuit which limits an inrush current flowing through the LED lighting device when power is turned on and a trigger circuit which generates a trigger signal of an operation/non-operation of the inrush current limiting circuit from the switching circuits. Further, the inrush current limiting circuit is set in a non-operation state when any one of the switching circuits is started first.
摘要翻译： LED照明装置包括连接在电源和LED（发光二极管）单元之间的两个或更多个开关电路，限制在电源接通时流过LED照明装置的浪涌电流的浪涌电流限制电路和触发电路其产生来自开关电路的浪涌电流限制电路的操作/不操作的触发信号。此外，当任何一个开关电路首先启动时，浪涌电流限制电路被设置在非操作状态。

6. 发明授权

US08716949B2 Lighting device for solid-state light source and illumination apparatus using same 有权
标题翻译：固态光源用照明装置及使用其的照明装置
公开(公告)号：US08716949B2
公开(公告)日：2014-05-06
申请号：US13456343
申请日：2012-04-26
申请人： Koji Watanabe , Hiromitsu Mizukawa
发明人： Koji Watanabe , Hiromitsu Mizukawa
IPC分类号： H05B37/02
CPC分类号： H05B33/0818 , H05B33/0815 , H05B33/0848
摘要： A lighting device for lighting a solid-state light source includes: a DC power circuit unit for converting a power of an input DC power source using a switching element and flowing a current through a solid-state light source; and a control unit for performing a first switching control in which the switching element is turned on/off at a first high frequency and a second switching control in which an ON/OFF operation of the switching element is intermittently stopped at a second frequency lower than the first frequency of the first switching control. When the current flowing through the solid-state light source is changed, the second frequency is varied.
摘要翻译：一种用于点亮固态光源的照明装置包括：直流电源电路单元，用于使用开关元件转换输入直流电源的电力并使电流流过固态光源; 以及控制单元，用于执行其中开关元件以第一高频接通/断开的第一开关控制;以及第二开关控制，其中开关元件的接通/断开操作以低于第一个开关控制的第一个频率。当流过固态光源的电流改变时，第二频率变化。

7. 发明授权

US08669721B2 Solid state light source based lighting device and lighting system 有权
标题翻译：基于固态光源的照明设备和照明系统
公开(公告)号：US08669721B2
公开(公告)日：2014-03-11
申请号：US13428655
申请日：2012-03-23
申请人： Koji Watanabe , Hiromitsu Mizukawa , Nobuo Ukita , Kazuhiro Nishimoto
发明人： Koji Watanabe , Hiromitsu Mizukawa , Nobuo Ukita , Kazuhiro Nishimoto
IPC分类号： G05F1/00 , H05B37/02 , H05B39/04 , H05B41/36
CPC分类号： H05B33/0818 , H05B33/0851 , Y02B20/347
摘要： A lighting device is capable of realizing a stable dimming control in a wide range of light output. The lighting device includes a DC power circuit for providing power to a switching element of the lighting device. A current controller switches the switching element to enable a current to flow from the DC power circuit through a solid state light source and maintain the current from the DC power circuit through the solid state light source current controller at a predetermined current. The current controller includes a first switching controller operable to change a width of an on-pulse provided to the switching element and a second switching controller operable to determine a burst-on time during which the on-pulses determined by the first switching controller are provided to the switching element. The burst-on time is longer than an on-pulse period of the first switching controller.
摘要翻译：照明装置能够在宽范围的光输出中实现稳定的调光控制。照明装置包括用于向照明装置的开关元件提供电力的DC电力电路。电流控制器切换开关元件以使电流从DC电源电路通过固态光源流动，并且以预定电流保持来自DC电力电路的电流通过固态光源电流控制器。电流控制器包括可操作以改变提供给开关元件的导通脉冲的宽度的第一开关控制器和可操作以确定提供由第一开关控制器确定的导通脉冲的突发时间的第二开关控制器到开关元件。突发时间长于第一开关控制器的导通脉冲周期。

8. 发明授权

US08502463B2 LED driver circuit with open load detection and associated control method 有权
标题翻译： LED驱动电路具有开路负载检测及相关控制方法
公开(公告)号：US08502463B2
公开(公告)日：2013-08-06
申请号：US13031836
申请日：2011-02-22
申请人： Hiromitsu Mizukawa , Kazuhiro Kumada , Yoshifumi Kuroki
发明人： Hiromitsu Mizukawa , Kazuhiro Kumada , Yoshifumi Kuroki
IPC分类号： H05B39/02
CPC分类号： H05B33/089 , H05B33/0815 , Y02B20/347
摘要： An LED driver circuit prevents an increase in output voltage of a DC/DC converter in an open circuit condition associated with removal or failure of an LED lighting device. A DC power source provides a first DC voltage across positive and negative voltage rails. A DC/DC converter includes a switching element which when turned ON/OFF provides a second DC voltage across first and second ends of a capacitor which further define first and second LED lighting device connection terminals. A control circuit, upon receiving a drive power signal, turns ON/OFF the switching element to provide constant current control. A power supply circuit is coupled between the second LED lighting device connection terminal and the negative voltage rail and generates the drive power signal to the control circuit during a detected lighting condition. The power supply circuit further disables the drive power signal during a detected open circuit condition.
摘要翻译： LED驱动器电路防止在与LED照明装置的去除或故障相关的开路状态下DC / DC转换器的输出电压增加。直流电源在正负电压轨上提供第一直流电压。 DC / DC转换器包括开关元件，其在接通/断开时提供跨越电容器的第一和第二端的第二DC电压，其进一步限定第一和第二LED照明器件连接端子。控制电路在接收到驱动功率信号时，将开关元件接通/断开，以提供恒定的电流控制。电源电路耦合在第二LED照明装置连接端子和负电压轨道之间，并且在检测到的照明条件期间产生到控制电路的驱动电力信号。在检测到的开路状态期间，电源电路进一步禁止驱动电力信号。

9. 发明申请

US20120212148A1 LED LIGHTING DEVICE AND ILLUMINATION APPARATUS INCLUDING SAME 有权
标题翻译： LED照明装置和照明装置，包括它们
公开(公告)号：US20120212148A1
公开(公告)日：2012-08-23
申请号：US13398078
申请日：2012-02-16
申请人： Koji WATANABE , Hiromitsu Mizukawa , Kenji Matsuda
发明人： Koji WATANABE , Hiromitsu Mizukawa , Kenji Matsuda
IPC分类号： H05B37/02
CPC分类号： H05B33/0815
摘要： An LED lighting device includes two or more switching circuits connected between a power source and an LED (light emitting diode) unit, an inrush current limiting circuit which limits an inrush current flowing through the LED lighting device when power is turned on and a trigger circuit which generates a trigger signal of an operation/non-operation of the inrush current limiting circuit from the switching circuits. Further, the inrush current limiting circuit is set in a non-operation state when any one of the switching circuits is started first.
摘要翻译： LED照明装置包括连接在电源和LED（发光二极管）单元之间的两个或更多个开关电路，限制在电源接通时流过LED照明装置的浪涌电流的浪涌电流限制电路和触发电路其产生来自开关电路的浪涌电流限制电路的操作/不操作的触发信号。此外，当任何一个开关电路首先启动时，浪涌电流限制电路被设置为非操作状态。

10. 发明申请

US20120019714A1 LED LIGHTING DEVICE WITH CHOPPER CIRCUIT AND DIMMING CONTROL METHOD 有权
标题翻译：具有切割电路的LED照明装置和调光控制方法
公开(公告)号：US20120019714A1
公开(公告)日：2012-01-26
申请号：US13187321
申请日：2011-07-20
申请人： AKINORI HIRAMATU , HIROMITSU MIZUKAWA
发明人： AKINORI HIRAMATU , HIROMITSU MIZUKAWA
IPC分类号： H04N5/225 , H05B37/02
CPC分类号： H05B37/0281 , H05B33/0815 , Y02B20/42
摘要： A lighting device is provided for lighting control of an LED module based on an externally provided dimming control signal. A chopper circuit includes a switch coupled across a DC input and an inductor which receives and stores energy when the switch is turned on, and discharges energy to the LED module when the switch is turned off. A control circuit determines a current value to the switch, and compares the current value to a predetermined value. During normal operation, the switch is turned off when the detected current value reaches the predetermined value and turned back on when inductor discharge has completed. During a dimming operation, the normal operation is intermittently disabled in accordance with the dimming control signal. The dimming control signal may be a low-frequency PWM signal, with the lighting output being dimmed as a result of a duty ratio of the PWM signal.
摘要翻译：提供照明装置，用于基于外部提供的调光控制信号对LED模块进行照明控制。斩波电路包括耦合在DC输入端的开关和当开关导通时接收和存储能量的电感器，并且当开关断开时，将能量放电到LED模块。控制电路确定开关的当前值，并将当前值与预定值进行比较。在正常工作期间，当检测到的电流值达到预定值时，开关断开，当电感放电完成时，开关转向导通。在调光操作期间，根据调光控制信号间歇地禁用正常操作。调光控制信号可以是低频PWM信号，由于PWM信号的占空比，照明输出变暗。

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