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公开(公告)号：US20160037593A1
公开(公告)日：2016-02-04
申请号：US14743539
申请日：2015-06-18
Inventor： Shigeru IDO , Hiroshi KIDO , Akinori HIRAMATU , Takeshi KAMOI , Katsushi SEKI , Daisuke YAMAHARA , Daisuke UEDA
IPC: H05B33/08
CPC classification number: H05B33/083 , H05B33/0809 , H05B33/089 , H05B37/02
Abstract: An illumination device includes a main light source block having a plurality of main light sources and a plurality of current limiters, and an auxiliary light source block having an auxiliary light source and a constant-current unit. A series circuit of the auxiliary light source and the constant-current unit is electrically connected in parallel with the main light source block, between first and second output terminals of a rectifier. A smoothing capacitor is electrically connected in parallel with a specific main light source among the plurality of main light sources. The specific main light source and a corresponding current limiter are electrically connected in parallel with the series circuit of the auxiliary light source and the constant-current unit.
Abstract translation: 照明装置包括具有多个主光源和多个限流器的主光源块，以及具有辅助光源和恒流单元的辅助光源块。 辅助光源和恒流单元的串联电路在整流器的第一和第二输出端子之间与主光源块并联电连接。 平滑电容器与多个主光源中的特定主光源并联地电连接。 特定主光源和对应的限流器与辅助光源和恒流单元的串联电路并联电连接。
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公开(公告)号：US20150173133A1
公开(公告)日：2015-06-18
申请号：US14572990
申请日：2014-12-17
Inventor： Keisuke SEKI , Takeshi KAMOI , Daisuke YAMAHARA
IPC: H05B33/08
CPC classification number: H05B33/0818
Abstract: A lighting device includes a constant-current circuit, a smoothing capacitor, a bypass circuit, a detection unit, and a bypass control unit. The constant-current circuit supplies a constant current to a plurality of solid-state light-emitting elements connected in series. The smoothing capacitor is connected between output terminals of the constant-current circuit. The bypass circuit is connected in parallel to one or more of the plurality of solid-state light-emitting elements. The detection unit detects whether the one or more solid-state light-emitting elements are open-circuited. When the detection unit detects that at least one of the one or more solid-state light-emitting elements is open-circuited, the bypass control unit discharges the smoothing capacitor during a discharge period to then bypass the one or more solid-state light-emitting elements through the bypass circuit.
Abstract translation: 照明装置包括恒流电路，平滑电容器，旁路电路，检测单元和旁路控制单元。 恒流电路向串联连接的多个固态发光元件供给恒定电流。 平滑电容器连接在恒流电路的输出端子之间。 旁路电路与多个固态发光元件中的一个或多个并联连接。 检测单元检测一个或多个固态发光元件是否开路。 当检测单元检测到一个或多个固态发光元件中的至少一个是开路时，旁路控制单元在放电期间对平滑电容器进行放电，从而绕过一个或多个固态发光元件， 通过旁路电路发射元件。
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公开(公告)号：US20160066388A1
公开(公告)日：2016-03-03
申请号：US14822054
申请日：2015-08-10
Inventor： Keisuke SEKI , Takeshi KAMOI , Daisuke YAMAHARA
IPC: H05B33/08
CPC classification number: H05B33/0815 , H02M3/33546 , H05B37/0227 , Y02B20/346
Abstract: Lighting apparatus includes: AC/DC converter which converts AC voltage Vac to DC voltage Vdc; DC/DC converter which converts DC voltage Vdc to a DC voltage to be applied to LED; and detection circuit which detects AC voltage Vac. DC/DC converter includes switching element, and control circuit that performs a control of repeatedly turning on and off switching element in a boundary conduction mode. Control circuit performs the control under which ON time Ton is kept from exceeding an upper limit that is previously determined, and raises the upper limit when AC voltage Vac detected by detection circuit falls below a predetermined value. ON time Ton is a period of time during which switching element is kept ON.
Abstract translation: 照明装置包括：将AC电压Vac转换为DC电压Vdc的AC / DC转换器; DC / DC转换器，其将DC电压Vdc转换为施加到LED的DC电压; 以及检测AC电压Vac的检测电路。 DC / DC转换器包括开关元件和控制电路，其执行在边界导通模式中重复接通和断开开关元件的控制。 控制电路进行使ON时刻Ton不超过预先确定的上限的控制，并且在检测电路检测到的交流电压Vac低于预定值的情况下升高上限。 接通时间Ton是开关元件保持接通的时间段。
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公开(公告)号：US20160150611A1
公开(公告)日：2016-05-26
申请号：US14944267
申请日：2015-11-18
Inventor： Masato HIMEDA , Hiroyuki ASANO , Masafumi YAMAMOTO , Takeshi KAMOI , Daisuke YAMAHARA , Keisuke SEKI , Katsuyuki DOI
IPC: H05B33/08
CPC classification number: H05B33/0815 , H05B33/0812 , Y02B20/343 , Y02B20/345
Abstract: A lighting device includes a rectifier circuit, a conversion circuit, a constant current circuit and a control circuit. The conversion circuit includes a first series circuit, a second series circuit and a third series circuit. The conversion circuit is configured to output a DC current by on/off of a switching element being controlled by the control circuit. A high potential-side terminal of the third capacitor is electrically connected to an output terminal. The low potential-side terminal of the third capacitor is electrically connected to an output terminal, via the constant current circuit.
Abstract translation: 照明装置包括整流电路，转换电路，恒流电路和控制电路。 该转换电路包括第一串联电路，第二串联电路和第三串联电路。 转换电路被配置为通过由控制电路控制的开关元件的导通/截止来输出DC电流。 第三电容器的高电位侧端子与输出端子电连接。 第三电容器的低电位侧端子经由恒流电路与输出端子电连接。
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公开(公告)号：US20170013686A1
公开(公告)日：2017-01-12
申请号：US15202794
申请日：2016-07-06
Inventor： Shigeru IDO , Akinori HIRAMATSU , Hiroshi KIDO , Takeshi KAMOI , Daisuke UEDA
IPC: H05B33/08
CPC classification number: H05B33/0815 , H04B10/11 , H05B33/0806 , H05B33/0842
Abstract: A control circuit is configured to convert a DC voltage that is outputted from a DC power supply to a square wave voltage by switching the switching element according to a PWM signal having a duty ratio that corresponds to a light modulation level of the light source unit, and cause the square wave voltage to be outputted to the light source unit. The control circuit includes a voltage controller configured to control an operating voltage for operating the switching element such that at least one of a rising time and a falling time of a current that flows through the switching element is 1 microsecond or more.
Abstract translation: 控制电路被配置为通过根据具有与光源单元的光调制等级对应的占空比的PWM信号切换开关元件，将从直流电源输出的直流电压转换为方波电压， 并且使得方波电压被输出到光源单元。 控制电路包括：电压控制器，被配置为控制用于操作开关元件的工作电压，使得流过开关元件的电流的上升时间和下降时间中的至少一个为1微秒以上。
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Patent Agency Ranking
公开(公告)号：US20160029444A1
公开(公告)日：2016-01-28
申请号：US14734566
申请日：2015-06-09
Inventor： Takeshi KAMOI , Akinori HIRAMATU , Hiroshi KIDO , Katsushi SEKI , Shigeru IDO , Daisuke YAMAHARA , Daisuke UEDA
IPC: H05B33/08
CPC classification number: H05B33/083
Abstract: A controller circuit is configured to adjust the number of light-emitting diodes that a current flows from a rectifier circuit through so that: the number of light-emitting diodes, which are lit, of the plurality of light-emitting diodes increases according to a value of a pulsating voltage during a time period that the value of the pulsating voltage increases; and the number of light-emitting diodes, which are lit, of the plurality of light-emitting diodes decreases according to the value of the pulsating voltage during a time period that the value of the pulsating voltage decreases. Light-emitting diodes, which start to emit light by a higher voltage value, of the plurality of light-emitting diodes are disposed at a position nearer to an outside of a mounting region of a substrate than light-emitting diodes, which start to emit light by a lower voltage value, of the plurality of light-emitting diodes.
Abstract translation: 控制器电路被配置为调节电流从整流电路流过的发光二极管的数量，使得：多个发光二极管的发光二极管的数量根据 在脉动电压值增加的时间段内脉动电压的值; 并且多个发光二极管中发光二极管的数量根据脉动电压值减小的时间段内的脉动电压的值而减小。 多个发光二极管开始发射较高电压值的发光二极管被设置在比开始发射的发光二极管更靠近基板的安装区域的外侧的位置 在多个发光二极管中通过较低的电压值进行光照射。
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公开(公告)号：US20160150609A1
公开(公告)日：2016-05-26
申请号：US14944272
申请日：2015-11-18
Inventor： Keisuke SEKI , Takeshi KAMOI , Daisuke YAMAHARA , Hiroyuki ASANO , Masafumi YAMAMOTO , Masato HIMEDA , Katsuyuki DOI
IPC: H05B33/08
CPC classification number: H05B33/0815 , H05B33/0812 , H05B33/0842 , Y02B20/343 , Y02B20/346
Abstract: A lighting device includes a rectifier circuit, a conversion circuit and a control circuit. A first inductor of a first series circuit and a second inductor of a second series circuit have inductances by which a time period, during which a diode is electrically conducted, is made shorter than a half period of a resonance period of a closed loop circuit. The closed loop circuit includes a first capacitor, the first inductor, a second capacitor and a third capacitor. The control circuit is configured to control a switching element in such a manner that the switching element is turned on at fixed periods.
Abstract translation: 照明装置包括整流电路，转换电路和控制电路。 第一串联电路的第一电感器和第二串联电路的第二电感器具有电感，通过该电感使二极管导通的时间周期短于闭环回路的谐振周期的半周期。 闭环电路包括第一电容器，第一电感器，第二电容器和第三电容器。 控制电路被配置为以这样的方式控制开关元件，使得开关元件以固定的周期接通。
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8.发明申请公开(公告)号：US20160113079A1
公开(公告)日：2016-04-21
申请号：US14885117
申请日：2015-10-16
Inventor： Akinori HIRAMATU , Hirohiko NOJIRI , Takeshi KAMOI , Hiroshi KIDO
IPC: H05B33/08
CPC classification number: H05B33/0818 , Y02B20/347
Abstract: A light source circuit includes light-emitting diodes and a constant current circuit that controls current flowing through light-emitting diodes to a fixed level. A DC power supply circuit outputs a DC voltage having a voltage value capable of causing light-emitting diodes to emit light. A light modulation control unit includes: a MOSFET electrically connected between DC power supply circuit and light source circuit; and a control circuit configured to control MOSFET. Control circuit is configured to turn MOSFET on and off with a duty ratio corresponding to a light modulation level such that DC voltage that is outputted from DC power supply circuit is converted to a square wave voltage, and the square wave voltage is outputted to light source circuit. The square wave voltage has an amplitude equal to the voltage value of the DC voltage that is outputted from DC power supply circuit.
Abstract translation: 光源电路包括发光二极管和将流过发光二极管的电流控制到固定电平的恒流电路。 直流电源电路输出具有能够使发光二极管发光的电压值的直流电压。 光调制控制单元包括：电连接在直流电源电路和光源电路之间的MOSFET; 以及配置为控制MOSFET的控制电路。 控制电路被配置为以与光调制电平相对应的占空比来接通和关断MOSFET，使得从直流电源电路输出的直流电压转换为方波电压，并且将方波电压输出到光源 电路。 方波电压的幅度等于从直流电源电路输出的直流电压的电压值。
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公开(公告)号：US20160066375A1
公开(公告)日：2016-03-03
申请号：US14824590
申请日：2015-08-12
Inventor： Keisuke SEKI , Takeshi KAMOI , Daisuke YAMAHARA
IPC: H05B33/08
CPC classification number: H05B33/0815 , H01L29/1608 , H02M1/42 , H02M3/33523 , H05B33/0812 , H05B33/0851 , H05B33/0896
Abstract: Lighting apparatus which supplies a current to solid-state light-emitting device (LED) includes: DC power supply circuit (AC/DC converter); and DC/DC converter that converts an output voltage of DC power supply circuit and applies, to solid-state light-emitting device, the output voltage converted. DC/DC converter includes: switching element; and DC/DC control circuit that performs a control of repeatedly turning ON and OFF switching element in a boundary conduction mode, and DC power supply circuit adjusts the output voltage to make a switching frequency of switching element higher than a first frequency, based on a forward voltage to be applied to solid-state light-emitting device.
Abstract translation: 向固态发光装置（LED）供给电流的照明装置包括：直流电源电路（AC / DC转换器）; DC / DC转换器，其对直流电源电路的输出电压进行转换，并将其转换为固态发光装置。 DC / DC转换器包括：开关元件; 以及直流/直流控制电路，其在边界导通模式中进行反复导通和断开开关元件的控制，并且直流电源电路基于以下步骤调整输出电压以使开关元件的开关频率高于第一频率 要施加到固态发光器件的正向电压。
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公开(公告)号：US20160037594A1
公开(公告)日：2016-02-04
申请号：US14796287
申请日：2015-07-10
Inventor： Daisuke YAMAHARA , Takeshi KAMOI , Hiroshi KIDO , Akinori HIRAMATU , Katsushi SEKI , Daisuke UEDA , Shigeru IDO
IPC: H05B33/08
CPC classification number: H05B33/083 , H05B33/0809
Abstract: A lighting device includes a rectifier, a constant current regulator and a charge-discharge circuit. The constant current regulator is electrically connected in series with first and second solid-state light-emitting element arrays between a pair of output terminals of the rectifier. The constant current regulator is configured to adjust a current flowing through the second solid-state light-emitting element array to a constant current. The charge-discharge circuit is electrically connected in series with the first solid-state light-emitting element array between the pair of output terminals of the rectifier. The charge-discharge circuit includes a charge storage element, and is configured so that a charge current flows to the charge storage element through the first solid-state light-emitting element array, and so that a discharge current flows from the charge storage element to the second solid-state light-emitting element array.
Abstract translation: 照明装置包括整流器，恒流调节器和充放电电路。 恒流调节器与整流器的一对输出端之间的第一和第二固态发光元件阵列串联电连接。 恒流调节器被配置为将流过第二固态发光元件阵列的电流调节到恒定电流。 充放电电路与整流器的一对输出端子之间的第一固态发光元件阵列串联电连接。 充放电电路包括电荷存储元件，并且被配置为使得充电电流通过第一固态发光元件阵列流到电荷存储元件，并且使得放电电流从电荷存储元件流到 第二固态发光元件阵列。
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