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1. 发明公开

EP2200406A2 Controller for vehicular lamp 有权
标题翻译： SteuerungfürFahrzeuglampe
公开(公告)号：EP2200406A2
公开(公告)日：2010-06-23
申请号：EP09178666.5
申请日：2009-12-10
申请人： Koito Manufacturing Co., Ltd.
发明人： Matsui, Kotaro , Sugiyama, Takao , Kitagawa, Takayoshi
IPC分类号： H05B33/08 , B60Q11/00 , B60Q1/00
CPC分类号： H05B33/0887 , H05B33/0848
摘要： To reduce manufacturing costs by suppressing a ground fault current, a controller for a vehicular lamp includes an inverting converter 2 for supplying power to LEDs 21-1 to 21-n, and a current detection unit 3 that includes a shunt resistor Rs connected serially to the LEDs 21-1 to 21-n and detects an LED driving current flowing through the LEDs 21-1 to 21-n. The current detection unit 3 includes a shunt resistor Rs' connected serially to the LEDs 21-1 to 21-n via the shunt resistor Rs, and a bypass section 4. The bypass section 4 includes an NMOS transistor 10 connected parallel to the shunt resistor Rs' and a Zener diode ZD1 that causes the NMOS transistor 10 to turn off when a ground fault occurs at a positive polarity output side or a negative polarity output side of the inverting converter 2.
摘要翻译：为了通过抑制接地故障电流来降低制造成本，用于车灯的控制器包括用于向LED 21-1至21-n供电的反相转换器2和电流检测单元3，其包括串联连接到 LED 21-1至21-n，并且检测流过LED 21-1至21-n的LED驱动电流。电流检测单元3包括经由分流电阻器Rs与LED 21-1至21-n串联连接的分流电阻器Rs'和旁路部分4.旁路部分4包括并联于分流电阻器的NMOS晶体管10 Rs'和齐纳二极管ZD1，当在反相转换器2的正极性输出侧或负极性输出侧发生接地故障时，使NMOS晶体管10截止。

2. 发明公开

EP2096900A1 Vehicle lighting control device 有权
标题翻译： Fahrzeugbeleuchtungssteuerungsvorrichtung
公开(公告)号：EP2096900A1
公开(公告)日：2009-09-02
申请号：EP09153665.6
申请日：2009-02-25
申请人： KOITO MANUFACTURING CO., LTD
发明人： Matsui, Kotaro , Kitagawa, Takayoshi
IPC分类号： H05B33/08
CPC分类号： H05B33/0818 , Y02B20/347
摘要： A vehicle lighting control device includes a switching unit to perform ON/OFF control of a driving current supplied to a semiconductor light source depending on a light control signal; and a constant-current control unit to perform constant-current control on the driving current. The constant-current control unit includes a switch unit to perform ON/OFF control of the switching unit; and a signal-maintaining unit to provide a voltage signal corresponding to the driving current to the switch unit when the switching unit performs ON control, and to provide continuously the voltage signal to the switch unit when the switching unit performs OFF control.
摘要翻译：车辆照明控制装置包括切换单元，用于根据光控制信号对提供给半导体光源的驱动电流进行ON / OFF控制; 以及对驱动电流进行恒定电流控制的恒流控制单元。恒流控制单元包括用于执行开关单元的ON / OFF控制的开关单元; 以及信号保持单元，用于当切换单元执行ON控制时向开关单元提供与驱动电流相对应的电压信号，并且当切换单元执行OFF控制时，向开关单元提供电压信号。

3. 发明公开

EP2416626A2 Light source lighting circuit and lamp system for vehicle 有权
标题翻译： Lichtquellenbeleuchtungsschaltung und LampensystemfürFahrzeug
公开(公告)号：EP2416626A2
公开(公告)日：2012-02-08
申请号：EP11176694.5
申请日：2011-08-05
申请人： Koito Manufacturing Co., Ltd.
发明人： Matsui, Kotaro
IPC分类号： H05B33/08
CPC分类号： H05B33/089 , H05B33/0887
摘要： A lighting circuit includes: a countercurrent prevention unit including a first control terminal and a second control terminal, the countercurrent prevention unit transmitting a first current or a second current; and a current controller including: a common terminal connected to the first control terminal and the second control terminal; and a switching terminal connected to the first control terminal, the current controller providing a first driving current or a second driving current from the common terminal to the light source. The countercurrent prevention unit further includes: a first rectifier, wherein voltage at the first control terminal is provided to the switching terminal through the first rectifier; a first P-FET provided between the first control terminal and the common terminal; a second P-FET provided between the second control terminal and the common terminal; and a second rectifier provided between the second P-PET and the common terminal.
摘要翻译：照明电路包括：逆流防止单元，包括第一控制端子和第二控制端子，逆流防止单元发送第一电流或第二电流; 以及电流控制器，包括：连接到所述第一控制端子和所述第二控制端子的公共端子; 以及连接到第一控制端子的开关端子，电流控制器从公共端子向光源提供第一驱动电流或第二驱动电流。逆流防止单元还包括：第一整流器，其中第一控制端子处的电压通过第一整流器提供给开关端子; 设置在所述第一控制端子和所述公共端子之间的第一P-FET; 设置在第二控制端子和公共端子之间的第二P-FET; 以及设置在第二P-PET和公共端子之间的第二整流器。

4. 发明公开

EP2410820A2 Semiconductor light source lighting circuit and control method 有权
标题翻译： Halbleiterlichtquellenbeleuchtungssungschaltung和Ansteuerverfahren
公开(公告)号：EP2410820A2
公开(公告)日：2012-01-25
申请号：EP11174835.6
申请日：2011-07-21
申请人： Koito Manufacturing Co., Ltd.
发明人： Matsui, Kotaro
IPC分类号： H05B33/08
摘要： A semiconductor light source lighting circuit includes a transistor and a current detection resistor provided in series in a semiconductor light source current supply path, a control circuit for controlling the transistor so as to decrease any difference between the voltage occurring at the current detection resistor and a reference voltage, and a bypass resistor to establish a bypass path for the current supplied to the semiconductor light source, where a first end of the bypass path is located at a connection node between the transistor and the semiconductor light source.
摘要翻译：半导体光源点亮电路包括串联设置在半导体光源电流供给路径中的晶体管和电流检测电阻，控制电路，用于控制晶体管，以便减小在电流检测电阻器和参考电压和旁路电阻器，以建立用于提供给半导体光源的电流的旁路路径，其中旁路路径的第一端位于晶体管和半导体光源之间的连接节点处。

5. 发明授权

EP2416626B1 Light source lighting circuit and lamp system for vehicle 有权
公开(公告)号：EP2416626B1
公开(公告)日：2018-10-10
申请号：EP11176694.5
申请日：2011-08-05
申请人： Koito Manufacturing Co., Ltd.
发明人： Matsui, Kotaro
IPC分类号： H05B33/08
CPC分类号： H05B33/089 , H05B33/0887
摘要： A lighting circuit includes: a countercurrent prevention unit including a first control terminal and a second control terminal, the countercurrent prevention unit transmitting a first current or a second current; and a current controller including: a common terminal connected to the first control terminal and the second control terminal; and a switching terminal connected to the first control terminal, the current controller providing a first driving current or a second driving current from the common terminal to the light source. The countercurrent prevention unit further includes: a first rectifier, wherein voltage at the first control terminal is provided to the switching terminal through the first rectifier; a first P-FET provided between the first control terminal and the common terminal; a second P-FET provided between the second control terminal and the common terminal; and a second rectifier provided between the second P-PET and the common terminal.

6. 发明公开

EP2410820A3 Semiconductor light source lighting circuit and control method 有权
标题翻译：半导体光源点亮电路和驱动
公开(公告)号：EP2410820A3
公开(公告)日：2016-09-28
申请号：EP11174835.6
申请日：2011-07-21
申请人： Koito Manufacturing Co., Ltd.
发明人： Matsui, Kotaro
IPC分类号： H05B33/08
摘要： A semiconductor light source lighting circuit includes a transistor and a current detection resistor provided in series in a semiconductor light source current supply path, a control circuit for controlling the transistor so as to decrease any difference between the voltage occurring at the current detection resistor and a reference voltage, and a bypass resistor to establish a bypass path for the current supplied to the semiconductor light source, where a first end of the bypass path is located at a connection node between the transistor and the semiconductor light source.

7. 发明公开

EP2243661A3 Vehicle lamp lighting control device 无效
标题翻译：车辆用灯具的点灯控制装置
公开(公告)号：EP2243661A3
公开(公告)日：2016-01-06
申请号：EP10159314.3
申请日：2010-04-08
申请人： Koito Manufacturing Co., Ltd.
发明人： Matsui, Kotaro , Sugiyama, Takao
IPC分类号： B60Q1/04 , H05B33/08
CPC分类号： B60Q11/005 , H05B33/089
摘要： A vehicle lamp lighting control device includes: a current control unit which is of a non-insulation type and supplies a supply current to a semiconductor light source; an abnormality detecting unit which detects abnormality of a positive-electrode-side output based on at least one of a power supply voltage or a supply voltage supplied to the semiconductor light source, and outputs signal indicating the abnormality; and a bypass unit which bypasses the supply current supplied from the current control unit in accordance with the signal indicating the abnormality.

8. 发明授权

EP2096900B1 Vehicle lighting control device 有权
标题翻译：车辆照明控制装置
公开(公告)号：EP2096900B1
公开(公告)日：2012-07-25
申请号：EP09153665.6
申请日：2009-02-25
申请人： KOITO MANUFACTURING CO., LTD
发明人： Matsui, Kotaro , Kitagawa, Takayoshi
IPC分类号： H05B33/08
CPC分类号： H05B33/0818 , Y02B20/347

9. 发明授权

EP2410820B1 Semiconductor light source lighting circuit and control method 有权
公开(公告)号：EP2410820B1
公开(公告)日：2020-05-06
申请号：EP11174835.6
申请日：2011-07-21
申请人： Koito Manufacturing Co., Ltd.
发明人： Matsui, Kotaro
IPC分类号： H05B33/08

10. 发明授权

EP2200406B1 Controller for vehicular lamp 有权
标题翻译：车灯控制器
公开(公告)号：EP2200406B1
公开(公告)日：2017-08-16
申请号：EP09178666.5
申请日：2009-12-10
申请人： Koito Manufacturing Co., Ltd.
发明人： Matsui, Kotaro , Sugiyama, Takao , Kitagawa, Takayoshi
IPC分类号： H05B33/08 , B60Q11/00 , B60Q1/00
CPC分类号： H05B33/0887 , H05B33/0848

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