公开(公告)号：US20070019443A1

公开(公告)日：2007-01-25

申请号：US11490560

申请日：2006-07-21

申请人： Masayasu Ito ,  Fuminori Shiotsu

发明人： Masayasu Ito ,  Fuminori Shiotsu

IPC分类号： H02M3/335

CPC分类号： H02M3/33561 ,  H05B33/0815 ,  Y02B20/346

摘要： To control individually a plurality of loads to be turned on by combining a switching regulator with a charge pump circuit using some of the components of the switching regulator. An LED is controlled to be turned on by a switching regulator having an NMOS transistor connected to a transformer and a control circuit for generating an on/off signal. An LED is controlled to be turned on by a charge pump circuit that shares the NMOS transistor and the control circuit with the switching regulator to charge a condenser with an electric charge during an operation for turning on the NMOS transistor and discharge the electric charge accumulated in the condenser during an operation for turning off the NMOS transistor. Thus, circuit structure is simplified.

摘要翻译： 通过使用开关调节器的一些部件组合开关调节器和电荷泵电路来单独控制要接通的多个负载。 LED被控制为由具有连接到变压器的NMOS晶体管的开关调节器和用于产生开/关信号的控制电路接通。 通过在用于接通NMOS晶体管的操作期间，共享NMOS晶体管和控制电路的开关调节器来控制LED被接通，所述控制电路与开关调节器对于具有电荷的电容器进行充电，并且将累积的电荷放电 在关闭NMOS晶体管的操作期间的电容器。 因此，电路结构简化。

公开(公告)号：US07157864B2

公开(公告)日：2007-01-02

申请号：US11124023

申请日：2005-05-06

申请人： Masayasu Ito ,  Hitoshi Takeda

发明人： Masayasu Ito ,  Hitoshi Takeda

IPC分类号： B60Q1/00

CPC分类号： H05B41/382

摘要： There is provided a vehicular lamp that can prevent excess current from flowing between an anode and a cathode at the lighting-up start to prevent a damage and life shortening of a cold cathode fluorescent lamp at low cost. The vehicular lamp includes: a cold cathode fluorescent lamp having a cathode, a gate, and an anode; and a lighting controlling unit operable to pre-discharge electricity from the cathode to the gate prior to lighting of the cold cathode fluorescent lamp, in which the lighting controlling unit applies a voltage between the cathode and the anode after once lowering a voltage between the cathode and the gate and then again applies an extraction voltage between the cathode and the gate in order to begin to discharge electricity from the cathode to the anode. The lighting controlling unit may pre-discharge electricity from the cathode to the gate until the temperature of the cathode is substantially equal to that of lighting-up time.

摘要翻译： 提供了一种车灯，其可以防止过多的电流在点亮开始时在阳极和阴极之间流动，以便以低成本防止冷阴极荧光灯的损坏和寿命缩短。 车灯包括：具有阴极，栅极和阳极的冷阴极荧光灯; 以及照明控制单元，其可操作以在点亮冷阴极荧光灯之前从阴极向栅极预放电，其中点亮控制单元在阴极和阳极之间施加电压，一次降低阴极之间的电压 并且然后在阴极和栅极之间再次施加提取电压，以便开始从阴极向阳极放电。 照明控制单元可以从阴极向栅极预放电，直到阴极的温度基本上等于点亮时间。

公开(公告)号：US07105945B2

公开(公告)日：2006-09-12

申请号：US11040286

申请日：2005-01-21

申请人： Fuminori Shiotsu ,  Masayasu Ito ,  Toshiyuki Tsuchiya

发明人： Fuminori Shiotsu ,  Masayasu Ito ,  Toshiyuki Tsuchiya

IPC分类号： B60L1/14 ,  B60Q1/14

CPC分类号： H05B33/0815 ,  Y10T307/685

摘要： A lighting device for a vehicle comprises: a plurality of light source sections connected in parallel with each other; and a transformer for supplying an electric power to the plurality of light source sections. The transformer includes a primary coil and a plurality of secondary coils provided corresponding to the plurality of light source sections, for respectively supplying electric power to the corresponding light source sections. One end of each light source section is grounded and a semiconductor light emitting element is provided between one end and the other end of the light source section. The lighting device further comprises: a voltage detecting section for detecting voltages at the other ends of the plurality of light sources; and an output control section for controlling an electric current outputted from the transformer according to the voltage detected by the voltage detecting section.

摘要翻译： 一种用于车辆的照明装置，包括：彼此并联连接的多个光源部; 以及用于向所述多个光源部提供电力的变压器。 变压器包括初级线圈和对应于多个光源部分设置的用于分别向对应的光源部分供电的多个次级线圈。 各光源部的一端接地，在光源部的一端与另一端之间设置有半导体发光元件。 照明装置还包括：电压检测部，用于检测多个光源的另一端的电压; 以及输出控制部分，用于根据由电压检测部分检测到的电压来控制从变压器输出的电流。

公开(公告)号：US07081708B2

公开(公告)日：2006-07-25

申请号：US10684738

申请日：2003-10-14

申请人： Masayasu Ito ,  Hiroki Ishibashi ,  Kentaro Murakami ,  Hitoshi Takeda

发明人： Masayasu Ito ,  Hiroki Ishibashi ,  Kentaro Murakami ,  Hitoshi Takeda

IPC分类号： H05B37/00

CPC分类号： H05B33/0815 ,  H05B33/0845

摘要： A lighting circuit for lighting a vehicular lamp including a plurality of light-emitting diodes, includes: a selection unit for selecting the number of light-emitting diodes to be connected in series in the vehicular lamp based on an instruction from the outside; a switching regulator for applying an output voltage based on a power-supply voltage output by an external DC power supply to the selected number of light-emitting diodes to be connected in series, so as to supply a supply current to the selected number of light-emitting diodes; and an output controlling unit for controlling the output voltage of the switching regulator based on the supply current.

摘要翻译： 一种用于点亮包括多个发光二极管的车灯的照明电路，包括：选择单元，用于基于来自外部的指令在车灯中选择串联连接的发光二极管的数量; 开关调节器，用于将基于由外部DC电源输出的电源电压的输出电压施加到要串联连接的选定数量的发光二极管，以便向选定数量的光提供电源电流 二极管 以及输出控制单元，用于基于供电电流来控制开关调节器的输出电压。

公开(公告)号：US07019465B2

公开(公告)日：2006-03-28

申请号：US10914951

申请日：2004-08-10

申请人： Takao Muramatsu ,  Masayasu Ito

发明人： Takao Muramatsu ,  Masayasu Ito

IPC分类号： H05B37/02 ,  G05F1/00

CPC分类号： H05B41/2883 ,  H05B41/388 ,  Y10S315/07

摘要： A discharge lamp illumination circuit 1 has a DC-AC conversion circuit 3 which effects DC-AC conversion and boosting upon receipt of a DC input, and a starter circuit 4. The DC-AC conversion circuit 3 has an AC transformer 7, a plurality of switching elements 5H and 5L, and a resonance capacitor 8. The switching elements are activated by control means 6, thereby inducing series resonance between the resonance capacitor 8 and an inductance component of the AC transformer 7, or between the resonance capacitor 8 and an inductance element connected to the resonance capacitor 8. In connection with the operating frequency of the switching elements, a first frequency value is a frequency value of a period when outputs are open before the discharge lamp 10 is illuminated, and a second frequency value is a frequency value of a period from illumination of the discharge lamp by the starter circuit until elapse of a predetermined time period or a time period which is specified in accordance with an illumination state. The first frequency value is specified to be identical with the first frequency value, or to be close to the first frequency value.

摘要翻译： 放电灯照明电路1具有DC-AC转换电路3，其在接收到DC输入时进行DC-AC转换和升压，以及起动电路4。 DC-AC转换电路3具有AC变压器7，多个开关元件5H和5L以及谐振电容器8。 开关元件被控制装置6激活，从而在谐振电容器8和交流变压器7的电感分量之间或谐振电容器8和连接到谐振电容器8的电感元件之间引起串联谐振。 关于开关元件的工作频率，第一频率值是在放电灯10点亮之前输出开路的周期的频率值，第二频率值是来自照明的周期的频率值 通过起动器电路放电灯，直到经过预定时间段或根据照明状态指定的时间段。 第一频率值被指定为与第一频率值相同或接近于第一频率值。

公开(公告)号：US20050189822A1

公开(公告)日：2005-09-01

申请号：US11051192

申请日：2005-02-04

申请人： Takanori Namba ,  Masayasu Ito

发明人： Takanori Namba ,  Masayasu Ito

IPC分类号： B60R16/03 ,  B60Q1/00 ,  B60R16/02 ,  F21V23/02 ,  G06K1/00 ,  H02M3/28 ,  H02M3/335 ,  H05B33/08 ,  H05B37/02

CPC分类号： H05B33/0815 ,  H05B33/0818

摘要： There is provided a vehicular lamp at low cost. A power source apparatus includes: an output controlling switch operable to intermittently carry an electric current; an output coil operable to accumulate energy according to the current flowing into the output controlling switch and to output an electric power based on the accumulated energy when the output controlling switch is turned off; an end detecting unit operable to detect that the output coil ends the output of the power; and an output controlling unit, in which the output controlling unit includes: a time memorizing unit that memorizes OFF time for which the output controlling switch should be kept off; a switch controlling unit that switches the output controlling switch on and off based on the OFF time memorized in the time memorizing unit; and a time changing unit that changes the OFF time memorized in the time memorizing unit. The time changing unit increases the OFF time when the end detecting unit is not detecting the end of the output and decreases the OFF time when the end detecting unit is detecting the end of the output, in the timing when the output controlling switch is turned on.

摘要翻译： 以低成本提供车灯。 电源装置包括：输出控制开关，其可操作以间歇地携带电流; 输出线圈，用于根据流入所述输出控制开关的电流累积能量，并且当所述输出控制开关断开时，基于所述累积能量输出电力; 结束检测单元，其可操作以检测输出线圈结束电力的输出; 以及输出控制单元，其中所述输出控制单元包括：存储所述输出控制开关应关闭的OFF时间的时间存储单元; 开关控制单元，其基于存储在时间存储单元中的OFF时间来接通和断开输出控制开关; 以及更改单元，其改变存储在时间存储单元中的OFF时间。 当输出控制开关导通的定时，时间改变单元增加结束检测单元未检测到输出结束时的关闭时间，并且当结束检测单元检测到输出结束时减小关闭时间 。

公开(公告)号：US20050035723A1

公开(公告)日：2005-02-17

申请号：US10916024

申请日：2004-08-11

申请人： Takao Muramatsu ,  Masayasu Ito

发明人： Takao Muramatsu ,  Masayasu Ito

IPC分类号： H05B41/24 ,  H05B41/18 ,  H05B41/288

CPC分类号： H05B41/2881 ,  Y02B20/204

摘要： A discharge lamp lighting circuit 1 has: a DC-AC converter circuit 3 which receives a DC input, and which conducts AC conversion and a boosting operation; and a starting circuit 4 which supplies a starting signal to a discharge lamp 10. The lighting circuit has a structure in which the primary and secondary circuits of an AC conversion transformer 7 constituting the DC-AC converter circuit 3 are electrically insulated from each other. An input terminal of the starting circuit 4 is connected to the secondary winding 7s of the AC conversion transformer 7 to obtain an input voltage for the starting circuit, and a starting signal which is boosted by the AC conversion transformer 7 is superimposed on the AC-converted output to be supplied to the discharge lamp 10.

摘要翻译： 放电灯点亮电路1具有：DC-AC变换电路3，其接收DC输入，进行AC转换和升压动作; 以及将启动信号提供给放电灯10的启动电路4.点亮电路具有这样的结构，其中构成DC-AC转换器电路3的AC转换变压器7的一次和二次电路彼此电绝缘。 起动电路4的输入端子连接到AC转换变压器7的次级绕组7s以获得用于起动电路的输入电压，并且由AC转换变压器7升压的起动信号叠加在AC- 转换输出以提供给放电灯10。

公开(公告)号：US20050029964A1

公开(公告)日：2005-02-10

申请号：US10879578

申请日：2004-06-30

申请人： Hiroki Ishibashi ,  Masayasu Ito

发明人： Hiroki Ishibashi ,  Masayasu Ito

IPC分类号： H05B41/24 ,  H05B41/282 ,  H05B41/288 ,  H05B41/38 ,  G05F1/00

CPC分类号： H05B41/2882 ,  H05B41/386

摘要： A discharge lamp lighting circuit includes an emission acceleration controller for detecting a voltage for a discharge lamp and for supplying power exceeding a rated value when the discharge lamp is initially lighted, and thereafter gradually reducing the power to shift the discharge lamp to a steady state. While the value of the power supplied when the lighting of the discharge lamp is started is employed as the maximum, the power supplied to the discharge lamp is controlled. Thus, the speed at which the power is reduced during a period of transition to the steady state is increased in consonance with an increase in the discharge lamp voltage.

摘要翻译： 放电灯点亮电路包括用于检测放电灯的电压并且当放电灯初始点亮时提供超过额定值的功率的发射加速度控制器，然后逐渐减小将放电灯移动到稳定状态的功率。 当放电灯的点亮开始时提供的电力的值被采用为最大值时，控制提供给放电灯的电力。 因此，随着放电灯电压的增加，在向稳定状态的转变期间功率降低的速度增加。

公开(公告)号：US06583587B2

公开(公告)日：2003-06-24

申请号：US10083994

申请日：2002-02-25

申请人： Masayasu Ito ,  Hitoshi Takeda

发明人： Masayasu Ito ,  Hitoshi Takeda

IPC分类号： G05F100

CPC分类号： H05B41/386 ,  H05B41/2882 ,  Y02B20/204 ,  Y10S315/05

摘要： A discharge lamp lighting circuit adapted to control a transient power corresponding to a cooling condition or a light-out time of a discharge lamp without using a capacitor or storage device having a large capacity, thereby reducing a cost and a size. Power control in a steady state of a discharge lamp is carried out in response to a detection signal for a voltage and a current in the discharge lamp, and a power to be transiently applied to the discharge lamp is controlled before a transition to the power control. The power to be transiently applied is set to be higher than the power in the steady state, thereby promoting light emission of the discharge lamp. An increment in the transient applied power which exceeds the power in the steady state is specified corresponding to a voltage applied to the discharge lamp, a variation in the voltage and a time elapsed from a time that the discharge lamp is lighted up or a start of an operation of a lighting circuit. More specifically, a dedicated circuit for detecting the light-out time of the discharge lamp is eliminated to utilize only detection information required for the power control of the discharge lamp.

公开(公告)号：US06552501B2

公开(公告)日：2003-04-22

申请号：US09901399

申请日：2001-07-09

申请人： Masayasu Ito ,  Hitoshi Takeda

发明人： Masayasu Ito ,  Hitoshi Takeda

IPC分类号： G05F100

CPC分类号： H05B41/46 ,  H05B41/2851

摘要： In a discharge lamp lighting circuit 1, a control circuit 7 detects a failure in a discharge lamp 8 or the lighting circuit to stop supplying the power to the discharge lamp 8 or stop the operation of the lighting circuit, or lights another light source as a substitute light source for the discharge lamp and notifies the occurrence of a failure when the discharge lamp 8 can no longer be lit. A delay time generator circuit 31 is provided for a failure detection/determination circuit 22 such that the foregoing functions are prohibited until a predefined time period is elapsed after the time switch means SW1, SW2 are substantially simultaneously switched on to cause the lighting circuit to start operating.

摘要翻译： 在放电灯点亮电路1中，控制电路7检测放电灯8或者点亮电路的故障，停止向放电灯8供电或者停止点灯电路的动作，或照亮另一个光源 替代放电灯的光源，并且当放电灯8不能点亮时通知发生故障。 延迟时间发生器电路31被设置用于故障检测/确定电路22，使得在时间切换装置SW1，SW2基本上同时接通之后直到经过预定义的时间段才能禁止上述功能，以使得点亮电路开始 操作。