专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20130278165A1 SEMICONDUCTOR LIGHT SOURCE LIGHTING CIRCUIT 有权
标题翻译：半导体光源照明电路
公开(公告)号：US20130278165A1
公开(公告)日：2013-10-24
申请号：US13856492
申请日：2013-04-04
申请人： Satoshi Kikuchi , Takanori Namba , Masayasu Ito
发明人： Satoshi Kikuchi , Takanori Namba , Masayasu Ito
IPC分类号： H05B33/08
CPC分类号： H05B33/0815 , H05B33/0848
摘要： A semiconductor light source lighting circuit is provided with: a switching regulator that generates a drive current of a semiconductor light source using a switching element; and a control circuit that controls ON/OFF of the switching element. The control circuit is provided with: a comparator that compares the drive current and a target value; a counter that counts a digital value in a count direction determined by a comparison result of the comparator; a digital-analog converter that converts the digital value into an analog signal; and a drive circuit that controls the ON/OFF of the switching element based on the analog signal. The counter counts the digital value at a speed determined by an ON/OFF cycle of the switching element.
摘要翻译：半导体光源点亮电路设置有：使用开关元件产生半导体光源的驱动电流的开关调节器; 以及控制开关元件的ON / OFF的控制电路。该控制电路具有：比较器，用于比较驱动电流和目标值; 计数器，其通过比较器的比较结果确定的计数方向对数字值进行计数; 数字模拟转换器，将数字值转换为模拟信号; 以及驱动电路，其基于模拟信号来控制开关元件的接通/断开。计数器以由开关元件的ON / OFF周期确定的速度对数字值进行计数。

2. 发明授权

US08970136B2 Semiconductor light source lighting circuit and vehicular lamp 有权
标题翻译：半导体光源照明电路和车灯
公开(公告)号：US08970136B2
公开(公告)日：2015-03-03
申请号：US14197571
申请日：2014-03-05
申请人： Satoshi Kikuchi , Takanori Namba , Masayasu Ito , Daijiro Arisawa , Mikio Motomori
发明人： Satoshi Kikuchi , Takanori Namba , Masayasu Ito , Daijiro Arisawa , Mikio Motomori
IPC分类号： H05B37/02 , H05B33/08 , B60Q1/00
CPC分类号： H05B33/0815 , B60Q1/00 , H05B33/0848 , Y02B20/346
摘要： A semiconductor light source lighting circuit includes a voltage step-down unit configured to generate a drive voltage lower than an input voltage by turning on or off a first switching element in a voltage step-down mode, a voltage step-up unit configured to generate the drive voltage higher than the input voltage by turning on or off a second switching element in a voltage step-up mode, and a controller. The controller includes a charge pump unit configured to repeat charging from the drive voltage to a second capacitor and discharging from the charged second capacitor to the first capacitor in the voltage step-up mode, and a switch drive unit configured to apply a voltage higher than the voltage at the other end of the first switching element to the control terminal of the first switching element by using a voltage of the charged first capacitor.
摘要翻译：一种半导体光源照明电路，包括：降压单元，被配置为通过以降压模式接通或关闭第一开关元件来产生低于输入电压的驱动电压;电压升压单元，被配置为产生通过以升压模式接通或关闭第二开关元件，驱动电压高于输入电压，以及控制器。所述控制器包括：电荷泵单元，被配置为在所述升压模式下，从所述驱动电压向所述第二电容器重复充电并从所述充电的第二电容器向所述第一电容器放电;以及开关驱动单元，被配置为施加高于通过使用充电的第一电容器的电压将第一开关元件的另一端的电压提供给第一开关元件的控制端子。

3. 发明授权

US09226349B2 Semiconductor light source lighting circuit 有权
标题翻译：半导体光源照明电路
公开(公告)号：US09226349B2
公开(公告)日：2015-12-29
申请号：US13856492
申请日：2013-04-04
申请人： Satoshi Kikuchi , Takanori Namba , Masayasu Ito
发明人： Satoshi Kikuchi , Takanori Namba , Masayasu Ito
IPC分类号： H05B37/02 , H05B33/08
CPC分类号： H05B33/0815 , H05B33/0848
摘要： A semiconductor light source lighting circuit is provided with: a switching regulator that generates a drive current of a semiconductor light source using a switching element; and a control circuit that controls ON/OFF of the switching element. The control circuit is provided with: a comparator that compares the drive current and a target value; a counter that counts a digital value in a count direction determined by a comparison result of the comparator; a digital-analog converter that converts the digital value into an analog signal; and a drive circuit that controls the ON/OFF of the switching element based on the analog signal. The counter counts the digital value at a speed determined by an ON/OFF cycle of the switching element.
摘要翻译：半导体光源点亮电路设置有：使用开关元件产生半导体光源的驱动电流的开关调节器; 以及控制开关元件的ON / OFF的控制电路。该控制电路具有：比较器，用于比较驱动电流和目标值; 计数器，其通过比较器的比较结果确定的计数方向对数字值进行计数; 数字模拟转换器，将数字值转换为模拟信号; 以及驱动电路，其基于模拟信号来控制开关元件的接通/断开。计数器以由开关元件的ON / OFF周期确定的速度对数字值进行计数。

4. 发明授权

US08947017B2 Semiconductor light source lighting circuit 有权
标题翻译：半导体光源照明电路
公开(公告)号：US08947017B2
公开(公告)日：2015-02-03
申请号：US13644517
申请日：2012-10-04
申请人： Satoshi Kikuchi , Fuminori Shiotsu , Takanori Namba , Masayasu Ito
发明人： Satoshi Kikuchi , Fuminori Shiotsu , Takanori Namba , Masayasu Ito
IPC分类号： H05B37/02 , H05B33/08
CPC分类号： H05B33/089 , H05B33/0815
摘要： A circuit for lighting a semiconductor light source is provided. The circuit includes: a switching regulator including a switching element and configured to generate a drive current for the semiconductor light source using the switching element; and a control circuit configured to control on-off of the switching element such that the magnitude of the drive current comes close to a targeted value. The control circuit includes: a comparator configured to compare the magnitude of the drive current with the targeted value; an up/down counter configured to count a digital value in a counting-up direction or counting-down direction, based on a comparison result of the comparator; a digital-to-analog converter configured to convert the counted digital value into an analog signal; and a drive circuit configured to control on/off of the switching element based on the analog signal.
摘要翻译：提供一种照明半导体光源的电路。该电路包括：开关调节器，包括开关元件，并且被配置为使用开关元件产生用于半导体光源的驱动电流; 以及控制电路，被配置为控制所述开关元件的导通截止，使得所述驱动电流的大小接近目标值。控制电路包括：比较器，被配置为将驱动电流的大小与目标值进行比较; 配置为基于比较器的比较结果对计数向上或倒数方向的数字值进行计数的上/下计数器; 配置为将所计数的数字值转换为模拟信号的数模转换器; 以及驱动电路，被配置为基于所述模拟信号来控制所述开关元件的开/关。

5. 发明授权

US08928244B2 Semiconductor light source lighting circuit 有权
标题翻译：半导体光源照明电路
公开(公告)号：US08928244B2
公开(公告)日：2015-01-06
申请号：US13467229
申请日：2012-05-09
申请人： Satoshi Kikuchi , Fuminori Shiotsu , Takanori Namba , Masayasu Ito
发明人： Satoshi Kikuchi , Fuminori Shiotsu , Takanori Namba , Masayasu Ito
IPC分类号： H05B37/02 , H05B33/08
CPC分类号： H05B33/0851
摘要： A semiconductor light source lighting circuit includes a switching regulator that produces a drive current ILED with a switching element, and a control circuit that controls turning on and off of the switching element so that the magnitude of the drive current ILED approaches a target value. The control circuit includes an error comparator that compares the drive current ILED and the target value, an up/down counter that performs a counting operation, in which the control digital value is incremented or decremented based on the result of the comparison, a D/A converter that converts the control digital value into an analog duty ratio setting signal S4, and a drive circuit that controls the turning on and off of the switching element based on the signal S4. The up/down counter stops the counting operation when the switching regulator is brought into the inactive state.
摘要翻译：半导体光源点亮电路包括：开关调节器，其利用开关元件产生驱动电流ILED;以及控制电路，其控制开关元件的导通和截止，使得驱动电流ILED的大小接近目标值。控制电路包括：比较驱动电流ILED和目标值的误差比较器，执行计数操作的上/下计数器，其中控制数字值根据比较结果递增或递减，D / A转换器，其将控制数字值转换为模拟占空比设置信号S4，以及驱动电路，其根据信号S4控制开关元件的导通和截止。当开关调节器处于非活动状态时，上/下计数器停止计数操作。

6. 发明申请

US20130088172A1 SEMICONDUCTOR LIGHT SOURCE LIGHTING CIRCUIT 有权
标题翻译：半导体光源照明电路
公开(公告)号：US20130088172A1
公开(公告)日：2013-04-11
申请号：US13644517
申请日：2012-10-04
申请人： Satoshi Kikuchi , Fuminori Shiotsu , Takanori Namba , Masayasu Ito
发明人： Satoshi Kikuchi , Fuminori Shiotsu , Takanori Namba , Masayasu Ito
IPC分类号： H05B37/02
CPC分类号： H05B33/089 , H05B33/0815
摘要： A circuit for lighting a semiconductor light source is provided. The circuit includes: a switching regulator including a switching element and configured to generate a drive current for the semiconductor light source using the switching element; and a control circuit configured to control on-off of the switching element such that the magnitude of the drive current comes close to a targeted value. The control circuit includes: a comparator configured to compare the magnitude of the drive current with the targeted value; an up/down counter configured to count a digital value in a counting-up direction or counting-down direction, based on a comparison result of the comparator; a digital-to-analog converter configured to convert the counted digital value into an analog signal; and a drive circuit configured to control on/off of the switching element based on the analog signal.
摘要翻译：提供一种照明半导体光源的电路。该电路包括：开关调节器，包括开关元件，并且被配置为使用开关元件产生用于半导体光源的驱动电流; 以及控制电路，被配置为控制所述开关元件的导通截止，使得所述驱动电流的大小接近目标值。控制电路包括：比较器，被配置为将驱动电流的大小与目标值进行比较; 配置为基于比较器的比较结果对计数向上或倒数方向的数字值进行计数的上/下计数器; 配置为将所计数的数字值转换为模拟信号的数模转换器; 以及驱动电路，被配置为基于所述模拟信号来控制所述开关元件的开/关。

7. 发明授权

US07919925B2 Lighting control device of lighting device for vehicle 有权
标题翻译：车辆照明装置照明控制装置
公开(公告)号：US07919925B2
公开(公告)日：2011-04-05
申请号：US12167532
申请日：2008-07-03
申请人： Masayasu Ito , Takanori Namba
发明人： Masayasu Ito , Takanori Namba
IPC分类号： B60Q1/02 , B60L1/14
CPC分类号： H05B33/0887 , H05B33/0815 , H05B33/0827
摘要： In a process in which a control signal having a low level is output from an ON/OFF control circuit to series regulators connected to LEDs serving as lighting targets to turn ON the LEDs in accordance with digital communication information, the ON/OFF control circuit calculates a specified current value to be supplied to the LEDs serving as the lighting targets and compares the specified current value with a detected current value which is detected by a current detecting circuit, and outputs a stop signal to a control circuit on the assumption that a current flows without the series regulators with grounding generated on a cathode side of any of LEDs when the detected current value is greater than the specified current value. When the control circuit turns OFF an NMOS transistor in response to the stop signal, an operation of a switching regulator is stopped.
摘要翻译：在具有低电平的控制信号从ON / OFF控制电路输出到连接到用作照明目标的LED的串联调节器以根据数字通信信息接通LED的过程中，ON / OFF控制电路计算指定的电流值被提供给用作点亮目标的LED，并将指定的电流值与由电流检测电路检测到的检测电流值进行比较，并且在假定电流检测电路当检测到的电流值大于指定的电流值时，没有串联调节器流过在任何LED的阴极侧产生的接地。当控制电路响应于停止信号使NMOS晶体管断开时，停止开关调节器的操作。

8. 发明申请

US20090009088A1 LIGHTING CONTROL DEVICE OF LIGHTING DEVICE FOR VEHICLE 有权
标题翻译：用于车辆的照明装置的照明控制装置
公开(公告)号：US20090009088A1
公开(公告)日：2009-01-08
申请号：US12167532
申请日：2008-07-03
申请人： Masayasu Ito , Takanori Namba
发明人： Masayasu Ito , Takanori Namba
IPC分类号： H05B37/02 , H05B41/36
CPC分类号： H05B33/0887 , H05B33/0815 , H05B33/0827
摘要： In a process in which a control signal having a low level is output from an ON/OFF control circuit to series regulators connected to LEDs serving as lighting targets to turn ON the LEDs in accordance with digital communication information, the ON/OFF control circuit calculates a specified current value to be supplied to the LEDs serving as the lighting targets and compares the specified current value with a detected current value which is detected by a current detecting circuit, and outputs a stop signal to a control circuit on the assumption that a current flows without the series regulators with grounding generated on a cathode side of any of LEDs when the detected current value is greater than the specified current value. When the control circuit turns OFF an NMOS transistor in response to the stop signal, an operation of a switching regulator is stopped.
摘要翻译：在具有低电平的控制信号从ON / OFF控制电路输出到连接到用作照明目标的LED的串联调节器以根据数字通信信息接通LED的过程中，ON / OFF控制电路计算指定的电流值被提供给用作点亮目标的LED，并将指定的电流值与由电流检测电路检测到的检测电流值进行比较，并且在假定电流检测电路当检测到的电流值大于指定的电流值时，没有串联调节器流过在任何LED的阴极侧产生的接地。当控制电路响应于停止信号使NMOS晶体管断开时，停止开关调节器的操作。

9. 发明授权

US07714516B2 Lighting control apparatus for vehicle lamp 有权
标题翻译：车灯照明控制装置
公开(公告)号：US07714516B2
公开(公告)日：2010-05-11
申请号：US11496530
申请日：2006-07-31
申请人： Masayasu Ito , Takanori Namba
发明人： Masayasu Ito , Takanori Namba
IPC分类号： G05F1/00
CPC分类号： B60Q1/1415 , H05B33/0815 , H05B33/0845 , Y02B20/346 , Y02B20/347 , Y10T307/406 , Y10T307/937
摘要： When the level at an input terminal goes low upon the reception of a signal to dim an LED, a PNP transistor is rendered on and a voltage at the positive input terminal of an operational amplifier is raised, in accordance with a time constant that is defined by a resistor and a capacitor. In accordance with the increase in this voltage, a source current is supplied from the operational amplifier to a current detection terminal, and as the value of the source current is gradually increased, a current flowing across the shunt resistor of the switching regulator is gradually reduced. Further, the light emission level of the LED is gradually lowered from the fully lighted state to the 70% lighted state, and there is, for the LED, a light quantity change of about 30% in ten seconds.
摘要翻译：当输入端子的电平在接收到使暗淡LED的信号变为低电平时，根据定义的时间常数，使PNP晶体管导通，运算放大器的正输入端的电压升高通过电阻和电容。根据该电压的增加，源电流从运算放大器提供给电流检测端子，随着源电流的值逐渐增加，流过开关调节器的分流电阻的电流逐渐减小。此外，LED的发光水平从完全点亮状态逐渐降低到70％的点亮状态，对于LED，在10秒内的光量变化约为30％。

10. 发明申请

US20080197789A1 LIGHT EMITTING DEVICE 有权
标题翻译：发光装置
公开(公告)号：US20080197789A1
公开(公告)日：2008-08-21
申请号：US12025873
申请日：2008-02-05
申请人： Fuminori Shiotsu , Takanori Namba , Masayasu Ito
发明人： Fuminori Shiotsu , Takanori Namba , Masayasu Ito
IPC分类号： H05B37/02
CPC分类号： H05B33/0851 , H05B33/0815 , Y02B20/346
摘要： A light emitting device includes multiple light units each of which includes a semiconductor light source, and a current supply control means for controlling supply of current to the semiconductor light source. A control unit includes a control signal generation means for generating and providing a control signal. The light emitting device also includes switching means for controlling feeding from a DC power source to a corresponding one of the light units in response to the control signal. Each of the switching means is coupled to a corresponding one of the light units through a feed line.
摘要翻译：发光器件包括多个光单元，每个单元包括半导体光源，以及电流供应控制装置，用于控制对半导体光源的电流供应。控制单元包括用于产生和提供控制信号的控制信号产生装置。发光装置还包括用于响应于控制信号控制从DC电源馈送到对应的一个光单元的开关装置。每个切换装置通过馈送线耦合到相应的一个光单元。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式