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1. 发明申请

US20070085494A1 Lighting controller for lighting device for vehicle 失效
标题翻译：汽车照明装置照明控制器
公开(公告)号：US20070085494A1
公开(公告)日：2007-04-19
申请号：US11581610
申请日：2006-10-16
申请人： Hitoshi Takeda , Toru Nakayama , Masayasu Ito
发明人： Hitoshi Takeda , Toru Nakayama , Masayasu Ito
IPC分类号： H05B37/00
CPC分类号： H05B33/0854 , H05B33/0815 , H05B33/083 , H05B33/0851 , H05B33/0893
摘要： In a process in which a current is supplied from a switching regulator to multi-chip LEDs, the forward voltages of the LEDs are respectively detected in forward detecting circuits. The detected values are sent to a microcomputer. In the microcomputer, detected values when the multi-chip LEDs are initially turned on are stored as initial values. A first abnormality deciding value is set from the initial value. The detected values are sequentially stored as updated values. Second abnormality deciding values having conditions stricter than those of the first abnormality deciding value are sequentially set in accordance with the stored updated value. A read value is compared with the first abnormality deciding value or the read value is compared with the second abnormality deciding value to decide whether or not the abnormality of the LEDs is present. When it is decided that the LEDs are abnormal, an LED is turned on to inform a driver of the presence of the abnormality.
摘要翻译：在从开关调节器向多芯片LED提供电流的过程中，在正向检测电路中分别检测LED的正向电压。检测到的值被发送到微型计算机。在微型计算机中，当多芯片LED最初被接通时的检测值被存储为初始值。从初始值设定第一异常判定值。检测到的值被依次存储为更新值。根据存储的更新值依次设定具有比第一异常判定值更严格的条件的第二异常判定值。将读取值与第一异常判定值进行比较，或者将读取值与第二异常判定值进行比较，以判定是否存在LED的异常。当判定LED异常时，LED点亮，通知驾驶员异常的存在。

2. 发明授权

US07635952B2 Lighting controller for lighting device for vehicle 失效
标题翻译：汽车照明装置照明控制器
公开(公告)号：US07635952B2
公开(公告)日：2009-12-22
申请号：US11581610
申请日：2006-10-16
申请人： Hitoshi Takeda , Toru Nakayama , Masayasu Ito
发明人： Hitoshi Takeda , Toru Nakayama , Masayasu Ito
IPC分类号： B60Q1/34 , H01K7/00
CPC分类号： H05B33/0854 , H05B33/0815 , H05B33/083 , H05B33/0851 , H05B33/0893
摘要： In a process in which a current is supplied from a switching regulator to multi-chip LEDs, the forward voltages of the LEDs are respectively detected in forward detecting circuits. The detected values are sent to a microcomputer. In the microcomputer, detected values when the multi-chip LEDs are initially turned on are stored as initial values. A first abnormality deciding value is set from the initial value. The detected values are sequentially stored as updated values. Second abnormality deciding values having conditions stricter than those of the first abnormality deciding value are sequentially set in accordance with the stored updated value. A read value is compared with the first abnormality deciding value or the read value is compared with the second abnormality deciding value to decide whether or not the abnormality of the LEDs is present. When it is decided that the LEDs are abnormal, an LED is turned on to inform a driver of the presence of the abnormality.
摘要翻译：在从开关调节器向多芯片LED提供电流的过程中，在正向检测电路中分别检测LED的正向电压。检测到的值被发送到微型计算机。在微型计算机中，当多芯片LED最初被接通时的检测值被存储为初始值。从初始值设定第一异常判定值。检测到的值被依次存储为更新值。根据存储的更新值依次设定具有比第一异常判定值更严格的条件的第二异常判定值。将读取值与第一异常判定值进行比较，或者将读取值与第二异常判定值进行比较，以判定是否存在LED的异常。当判定LED异常时，LED点亮，通知驾驶员异常的存在。

3. 发明授权

US06583585B2 Discharge lamp lighting circuit 失效
公开(公告)号：US06583585B2
公开(公告)日：2003-06-24
申请号：US10010458
申请日：2001-12-06
申请人： Hitoshi Takeda , Toru Nakayama , Masayasu Ito
发明人： Hitoshi Takeda , Toru Nakayama , Masayasu Ito
IPC分类号： H05B3700
CPC分类号： H05B41/2925
摘要： In a lighting circuit, a lighting control circuit of a discharge lamp and a starting circuit for supplying a starting pulse to the discharge lamp are provided and also, electric power and the starting pulse are supplied through a socket connected to the discharge lamp. The starting circuit provided within the socket has a transformer, a capacitor connected to a primary winding of the transformer and a self-breakdown type switch element. It is constructed so that a feeding path to the capacitor is formed to charge the capacitor only when the discharge lamp is connected to the socket and a connection between a first terminal and a third terminal is made.

4. 发明授权

US07636037B2 Vehicle lighting apparatus 失效
标题翻译：车辆照明装置
公开(公告)号：US07636037B2
公开(公告)日：2009-12-22
申请号：US11635172
申请日：2006-12-07
申请人： Masayasu Ito , Hitoshi Takeda
发明人： Masayasu Ito , Hitoshi Takeda
IPC分类号： B60Q11/00
CPC分类号： B60Q11/00 , H05B33/0815 , H05B33/089 , Y02B20/346
摘要： A vehicle lighting apparatus includes a plurality of semiconductor light sources that are connected with each other in series, a switching regulator for supplying an electric power from a power source to each of said plurality of semiconductor light sources, forward voltage detection circuitry for detecting a forward voltage of each group by dividing said plurality of semiconductor light sources into groups; and failure detection circuitry for detecting the failure of the semiconductor light sources belonging to said each group based on the detected output of said each forward voltage detection circuitry. There are arranged between said groups a first voltage detection terminal and a second voltage detection terminal, mutually connected, as the voltage detection terminals connected to the forward voltage detection means to detect at least one of said groups, as well as a first failure detection wiring connecting the semiconductor light sources belonging to one group and said first voltage detection terminal and a second failure detection wiring connecting the semiconductor light sources belonging to the other group and said second voltage detection terminal.
摘要翻译：一种车辆用照明装置，其具有串联连接的多个半导体光源，用于从所述多个半导体光源中的每一个供给来自电源的电力的开关调节器，用于检测前端的正向电压检测电路通过将所述多个半导体光源分组成组，每组的电压; 以及故障检测电路，用于基于所检测的每个正向电压检测电路的输出来检测属于所述每个组的半导体光源的故障。在所述组之间布置有相互连接的第一电压检测端子和第二电压检测端子，作为连接到正向电压检测装置的电压检测端子，以检测至少一个所述组以及第一故障检测布线连接属于一组的半导体光源和所述第一电压检测端子以及连接属于另一组的半导体光源和所述第二电压检测端子的第二故障检测线。

5. 发明授权

US07327051B2 Lighting control circuit for vehicle lamps 有权
标题翻译：汽车灯具照明控制电路
公开(公告)号：US07327051B2
公开(公告)日：2008-02-05
申请号：US11242756
申请日：2005-10-04
申请人： Masayasu Ito , Hitoshi Takeda
发明人： Masayasu Ito , Hitoshi Takeda
IPC分类号： B60L1/14
CPC分类号： H05B33/0815 , H05B33/0827 , H05B33/089 , Y02B20/341
摘要： The supply of a predetermined current to LEDs is controlled by using series regulators. In accordance with the controlled states of the series regulators, a switching regulator adjusts an output voltage relative to the LEDs to the maximum voltage. When a ground fault occurs at the anode of one of the LEDs, and when a short circuit occurs at the output terminal of the switching regulator and the output voltage drops abnormally, the operation of the switching regulator is halted. When the gate voltage of an NMOS transistor is raised due to the disconnection of one of the LEDs, or when the drain voltage of the transistor is raised due to a short circuit at one of the LEDs, a Zener diode becomes conductive and an NPN transistor and a PNP transistor are rendered on. Then, a current flows through a diode, and as the gate voltage has been lowered, the operation of the NMOS transistor is halted, so that the remaining, normal LEDs are protected when an abnormality occurs.
摘要翻译：通过使用串联调节器来控制向LED提供预定电流。根据串联稳压器的受控状态，开关稳压器将相对于LED的输出电压调整到最大电压。在一个LED的阳极发生接地故障时，在开关稳压器的输出端发生短路，输出电压异常下降时，停止开关调节器的动作。当NMOS晶体管的栅极电压由于其中一个LED的断开而升高时，或者当晶体管的漏极电压由于其中一个LED处的短路而升高时，齐纳二极管变为导通状态，而NPN晶体管并且形成PNP晶体管。然后，电流流过二极管，并且随着栅极电压降低，NMOS晶体管的操作停止，使得当发生异常时保留正常的LED。

6. 发明授权

US07237935B2 Light source module and vehicular lamp 有权
标题翻译：光源模块和车灯
公开(公告)号：US07237935B2
公开(公告)日：2007-07-03
申请号：US11076782
申请日：2005-03-10
申请人： Masayasu Ito , Hitoshi Takeda
发明人： Masayasu Ito , Hitoshi Takeda
IPC分类号： B60Q1/00
CPC分类号： B60Q1/0088 , F21S41/147 , F21S41/192
摘要： A vehicular lamp has a plurality of light source modules for emitting light. Each of the light source modules has a semiconductor light-emitting element, a lighting circuit operable to control an electric current flowing into the semiconductor light-emitting element to turn the semiconductor light-emitting element on and off, a power cable operable to supply electric power from a power source located outside the vehicular lamp to the lighting circuit, a control cable operable to transmit a control signal that controls turning the semiconductor light-emitting element on and off to the lighting circuit, and a mounting substrate that mounts the semiconductor light-emitting element and the lighting circuit. One of the light source modules is connected to the power source by means of said power cable. The light source modules other than the one light source module are connected to the one light source module in parallel via the power cable.
摘要翻译：车灯具有用于发光的多个光源模块。每个光源模块具有半导体发光元件，可操作以控制流入半导体发光元件的电流来打开和关闭半导体发光元件的点亮电路，可操作以供应电力的电力电缆从位于车辆灯外部的电源向照明电路供电的控制电缆，可操作以传送控制信号的控制电缆，所述控制信号控制将半导体发光元件接通和断开到点亮电路;以及安装基板，其安装半导体光发光元件和照明电路。其中一个光源模块通过所述电力电缆连接到电源。除了一个光源模块之外的光源模块经由电力电缆并联连接到一个光源模块。

7. 发明申请

US20060082332A1 Lighting control circuit for vehicle lamps 有权
标题翻译：汽车灯具照明控制电路
公开(公告)号：US20060082332A1
公开(公告)日：2006-04-20
申请号：US11242756
申请日：2005-10-04
申请人： Masayasu Ito , Hitoshi Takeda
发明人： Masayasu Ito , Hitoshi Takeda
IPC分类号： B60Q1/14
CPC分类号： H05B33/0815 , H05B33/0827 , H05B33/089 , Y02B20/341
摘要： The supply of a predetermined current to LEDs is controlled by using series regulators. In accordance with the controlled states of the series regulators, a switching regulator adjusts an output voltage relative to the LEDs to the maximum voltage. When a ground fault occurs at the anode of one of the LEDs, and when a short circuit occurs at the output terminal of the switching regulator and the output voltage drops abnormally, the operation of the switching regulator is halted. When the gate voltage of an NMOS transistor is raised due to the disconnection of one of the LEDs, or when the drain voltage of the transistor is raised due to a short circuit at one of the LEDs, a Zener diode becomes conductive and an NPN transistor and a PNP transistor are rendered on. Then, a current flows through a diode, and as the gate voltage has been lowered, the operation of the NMOS transistor is halted, so that the remaining, normal LEDs are protected when an abnormality occurs.
摘要翻译：通过使用串联调节器来控制向LED提供预定电流。根据串联稳压器的受控状态，开关稳压器将相对于LED的输出电压调整到最大电压。在一个LED的阳极发生接地故障时，在开关稳压器的输出端发生短路，输出电压异常下降时，停止开关调节器的动作。当NMOS晶体管的栅极电压由于其中一个LED的断开而升高时，或者当晶体管的漏极电压由于其中一个LED处的短路而升高时，齐纳二极管变为导通状态，而NPN晶体管并且形成PNP晶体管。然后，电流流过二极管，并且随着栅极电压降低，NMOS晶体管的操作停止，使得当发生异常时保留正常的LED。

8. 发明申请

US20060061303A1 Lighting control circuit for vehicle lighting equipment 有权
标题翻译：汽车照明设备照明控制电路
公开(公告)号：US20060061303A1
公开(公告)日：2006-03-23
申请号：US11225730
申请日：2005-09-13
申请人： Hitoshi Takeda , Masayasu Ito
发明人： Hitoshi Takeda , Masayasu Ito
IPC分类号： H05B39/04 , H05B37/02
CPC分类号： H05B33/0893
摘要： An LED is connected to a power supply circuit, and a Zener diode is reverse-connected to the LED and then packaged in an LED package. When a load of the power supply circuit is lightened due to disconnection in the LED package, an output voltage of the power supply circuit shows a rising tendency. However, the power supply circuit limits the maximum voltage applied to the LED within a specified range between a forward voltage of the LED and a forward voltage+a Zener voltage of the Zener diode to prevent that a current flows through the Zener diode. As a result, no current flows through a resistor R1, then an NPN transistor is turned on, and then the LED acting as a disconnection sensing indicator lamp is turned on.
摘要翻译： LED连接到电源电路，并且齐纳二极管与LED反向连接，然后封装在LED封装中。当由于LED封装中的断开而使电源电路的负载变轻时，电源电路的输出电压呈上升趋势。然而，电源电路将施加到LED的最大电压限制在LED的正向电压和齐纳二极管的正向电压+齐纳电压之间的特定范围内，以防止电流流过齐纳二极管。结果，没有电流流过电阻器R 1，则NPN晶体管导通，然后用作断路检测指示灯的LED导通。

9. 发明申请

US20060061301A1 Lighting control circuit for vehicle lighting equipment 失效
标题翻译：汽车照明设备照明控制电路
公开(公告)号：US20060061301A1
公开(公告)日：2006-03-23
申请号：US11225250
申请日：2005-09-13
申请人： Masayasu Ito , Hitoshi Takeda
发明人： Masayasu Ito , Hitoshi Takeda
IPC分类号： H05B37/02
CPC分类号： H05B33/0815 , H05B33/0845
摘要： When an H signal of H/L binary signals is input into a control signal input terminal, a PWM signal is output from a multivibrator. When this PWM signal is input into a power supply circuit via a voltage converter circuit, such a control is repeated that a rated current flows through an LED at an ON time of the PWM signal and a supply of current to the LED is stopped at an OFF time of the PWM signal. An average current flowing through the LED is lowered and thus an emission of light is weakened, nevertheless an emitted light of the LED can be kept white because the rated current is supplied to the LED while the LED emits the light.
摘要翻译：当H / L二进制信号的H信号被输入到控制信号输入端时，从多谐振荡器输出PWM信号。当该PWM信号通过电压转换器电路输入到电源电路时，重复这样的控制，即在PWM信号的接通时间内，额定电流流过LED，并且在LED的电流被停止 OFF时间。流过LED的平均电流降低，因此光的发射被削弱，然而由于在LED发光的同时向LED提供额定电流，LED的发射光可以保持白色。

10. 发明申请

US20060055245A1 Lighting control circuit for vehicle lighting equipment 失效
标题翻译：汽车照明设备照明控制电路
公开(公告)号：US20060055245A1
公开(公告)日：2006-03-16
申请号：US11217883
申请日：2005-09-01
申请人： Masayasu Ito , Hitoshi Takeda
发明人： Masayasu Ito , Hitoshi Takeda
IPC分类号： B60L1/14 , B60Q1/26
CPC分类号： H05B33/0812 , H05B33/0845
摘要： A PMOS transistor is inserted in a circuit connecting a power supply terminal of a power supply circuit and a battery terminal. When a control signal input terminal goes to a low level, it is decided that a PWM signal or an H control signal is input into the control signal input terminal. Then, transistors are turned on, and then the PMOS transistor is turned on to apply a battery voltage to the power supply circuit via a power supply terminal, whereby a supply of current to an LED is controlled by the control signal. When the control signal input terminal goes to a high level, it is decided that an L control signal is input as the control signal. Then, the transistors are turned off, and then the PMOS transistor is turned off to cut off a power supply to the power supply circuit from a battery, whereby a dark current can be prevented from flowing through the power supply circuit when the LED is turned off.
摘要翻译： PMOS晶体管插入连接电源电路的电源端子和电池端子的电路中。当控制信号输入端子变为低电平时，决定将PWM信号或H控制信号输入到控制信号输入端子。然后，晶体管导通，然后PMOS晶体管导通，经由电源端子向电源电路施加电池电压，由此通过控制信号控制向LED供电的电流。当控制信号输入端子变为高电平时，决定输入L控制信号作为控制信号。然后，晶体管截止，然后关断PMOS晶体管，以从电池切断对电源电路的电源，由此当LED转向时，可以防止暗电流流过电源电路关闭

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