公开(公告)号：US20080164818A1

公开(公告)日：2008-07-10

申请号：US11970059

申请日：2008-01-07

申请人： Tomoyuki Ichikawa ,  Kotaro Matsui ,  Yusuke Kasaba

发明人： Tomoyuki Ichikawa ,  Kotaro Matsui ,  Yusuke Kasaba

IPC分类号： B60Q1/14 ,  H05B37/02

CPC分类号： H05B41/2887 ,  Y02B20/202

摘要： A discharge lamp lighting circuit includes a power supplying portion having a half bridge inverter for converting an output of a DC power supply into AC power, and a bridge driver for driving the half bridge inverter, and a control portion for generating a control signal S1 to control a driving frequency F of the bridge driver. The control portion has a random number generating circuit for generating a random number signal and changes the driving frequency F in accordance with the random number signal at a time interval of N/F, wherein N is an integer of one or more.

摘要翻译： 放电灯点亮电路包括：具有用于将直流电源的输出转换为交流电力的半桥逆变器的供电部和用于驱动半桥逆变器的桥接驱动器，以及用于产生控制信号S < SUB> 1 以控制桥式驱动器的驱动频率F. 控制部分具有随机数产生电路，用于产生随机数信号，并以N / F的时间间隔根据随机数信号改变驱动频率F，其中N是一个或多个的整数。

公开(公告)号：US07439687B2

公开(公告)日：2008-10-21

申请号：US11807021

申请日：2007-05-25

申请人： Kotaro Matsui ,  Tomoyuki Ichikawa

发明人： Kotaro Matsui ,  Tomoyuki Ichikawa

IPC分类号： H05B37/02

CPC分类号： H05B41/2887 ,  Y02B20/202 ,  Y10S315/07

摘要： A discharge lamp lighting circuit 1 includes an electric power supply part and a control part. The control part generates a control signal (Sc) for controlling the magnitude of electric power based on a lamp voltage (VL) of a discharge lamp. The electric power supply part supplies the electric power based on the control signal (Sc) from the control part to the discharge lamp. The control part has a differential computation part for differentiating a lamp voltage corresponding signal (VS) with respect to time and generating a first differential signal Sd1 (=dVS/dt), and an integral computation part for integrating a second differential signal (Sd2) which monotonously increases and decreases as the first differential signal (Sd1) increases and decreases with respect to time and generating a first integral signal (Si1), and generates the control signal (Sc) so that the electric power decreases with an increase in the first integral signal (Si1).

摘要翻译： 放电灯点亮电路1包括电力供应部和控制部。 控制部生成用于根据放电灯的灯电压（VL）控制电力的大小的控制信号（Sc）。 电力供给部根据从控制部向放电灯的控制信号（Sc）供给电力。 控制部分具有用于区分灯电压对应信号（VS）相对于时间并产生第一差分信号Sd1（= dVS / dt）的差分计算部分，以及用于 积分随着第一差分信号（Sd1> 1>）而单调增加和减小的第二差分信号（Sd 2 2），相对于时间增加并减小，并产生第一积分信号 （S1＆lt; 1＆gt;），并产生控制信号（Sc），使得电功率随着第一积分信号（Si 1> 1）的增加而减小。

公开(公告)号：US20080122380A1

公开(公告)日：2008-05-29

申请号：US11767822

申请日：2007-06-25

申请人： Kotaro Matsui ,  Tomoyuki Ichikawa ,  Takuya Serita

发明人： Kotaro Matsui ,  Tomoyuki Ichikawa ,  Takuya Serita

IPC分类号： H05B41/24

CPC分类号： H05B41/2928 ,  H05B41/2887 ,  Y02B20/202

摘要： A discharge lamp lighting circuit supplies an AC power for lighting a discharge lamp. The discharge lamp lighting circuit includes a power supply portion for supplying the AC power to the discharge lamp and a control portion for controlling the magnitude of the AC power. The power supply portion includes a series resonance circuit including transistors, a transformer, a capacitor and an inductor and a bridge driver for driving the transistors. The control portion controls the bridge driver so that the AC power increases intermittently. Thus, as the temperature of electrodes can be increased while suppressing the temporal average value of the supplied power within a rated power, the movement of a luminous point at the time of lighting the discharge lamp with a high frequency can be suppressed.

摘要翻译： 放电灯点亮电路提供用于点亮放电灯的AC电力。 放电灯点亮电路包括用于向放电灯提供AC电力的电源部分和用于控制AC电力的大小的控制部分。 电源部分包括串联谐振电路，其包括晶体管，变压器，电容器和电感器以及用于驱动晶体管的桥式驱动器。 控制部分控制桥式驱动器，使得AC功率间歇地增加。 因此，由于能够在抑制额定功率内的供电电力的时间平均值的同时提高电极的温度，能够抑制高频点亮放电灯时的发光点的移动。

公开(公告)号：US07479742B2

公开(公告)日：2009-01-20

申请号：US11435439

申请日：2006-05-16

申请人： Kotaro Matsui ,  Tomoyuki Ichikawa ,  Soichi Yagi

发明人： Kotaro Matsui ,  Tomoyuki Ichikawa ,  Soichi Yagi

IPC分类号： G05F1/00

CPC分类号： H05B41/2887 ,  Y02B20/202 ,  Y10S315/05 ,  Y10S315/07

摘要： A discharge lamp lighting circuit 1 includes a direct current-alternating current converting circuit 3, a starting circuit 4, controlling means 15 for controlling power, switching elements 5H, 5L driven by the controlling means 15 and a series LC resonance circuit (7p, 8, 9). A frequency modulating circuit is provided for restraining acoustic resonance by modulating a frequency of driving the switching element. When a basic frequency related to the drive frequency is equal to or higher than 1 MHz, a modulation width is set to be equal to or higher than 20 kHz.

摘要翻译： 放电灯点亮电路1包括直流电流转换电路3，起动电路4，用于控制电力的控制装置15，由控制装置15驱动的开关元件5H，5L和串联LC谐振电路（7p，8 ，9）。 提供了一种频率调制电路，用于通过调制驱动开关元件的频率来抑制声共振。 当与驱动频率相关的基本频率等于或高于1MHz时，调制宽度被设置为等于或高于20kHz。

公开(公告)号：US20070273302A1

公开(公告)日：2007-11-29

申请号：US11807021

申请日：2007-05-25

申请人： Kotaro Matsui ,  Tomoyuki Ichikawa

发明人： Kotaro Matsui ,  Tomoyuki Ichikawa

IPC分类号： H05B37/02

CPC分类号： H05B41/2887 ,  Y02B20/202 ,  Y10S315/07

摘要： A discharge lamp lighting circuit 1 includes an electric power supply part and a control part. The control part generates a control signal (Sc) for controlling the magnitude of electric power based on a lamp voltage (VL) of a discharge lamp. The electric power supply part supplies the electric power based on the control signal (Sc) from the control part to the discharge lamp. The control part has a differential computation part for differentiating a lamp voltage corresponding signal (VS) with respect to time and generating a first differential signal Sd1 (=dVS/dt), and an integral computation part for integrating a second differential signal (Sd2) which monotonously increases and decreases as the first differential signal (Sd1) increases and decreases with respect to time and generating a first integral signal (Si1), and generates the control signal (Sc) so that the electric power decreases with an increase in the first integral signal (Si1).

摘要翻译： 放电灯点亮电路1包括电力供应部和控制部。 控制部生成用于根据放电灯的灯电压（VL）控制电力的大小的控制信号（Sc）。 电力供给部根据从控制部向放电灯的控制信号（Sc）供给电力。 控制部分具有用于区分灯电压对应信号（VS）相对于时间并产生第一差分信号Sd1（= dVS / dt）的差分计算部分，以及用于 积分随着第一差分信号（Sd1> 1>）而逐渐增加和减小的第二差分信号（Sd <2> 2>）相对于时间增加和减小，并且产生第一积分信号 （S1＆lt; 1＆gt;），并产生控制信号（Sc），使得电功率随着第一积分信号（Si 1> 1）的增加而减小。

公开(公告)号：US20060261756A1

公开(公告)日：2006-11-23

申请号：US11435439

申请日：2006-05-16

申请人： Kotaro Matsui ,  Tomoyuki Ichikawa ,  Soichi Yagi

发明人： Kotaro Matsui ,  Tomoyuki Ichikawa ,  Soichi Yagi

IPC分类号： G05F1/00

CPC分类号： H05B41/2887 ,  Y02B20/202 ,  Y10S315/05 ,  Y10S315/07

摘要： A discharge lamp lighting circuit 1 includes a direct current-alternating current converting circuit 3, a starting circuit 4, controlling means 15 for controlling power, switching elements 5H, 5L driven by the controlling means 15 and a series LC resonance circuit (7p, 8, 9). A frequency modulating circuit is provided for restraining acoustic resonance by modulating a frequency of driving the switching element. When a basic frequency related to the drive frequency is equal to or higher than 1 MHz, a modulation width is set to be equal to or higher than 20 kHz.

摘要翻译： 放电灯点亮电路1包括直流电流转换电路3，起动电路4，用于控制电力的控制装置15，由控制装置15驱动的开关元件5H，5L和串联LC谐振电路（7 p，8,9）。 提供了一种频率调制电路，用于通过调制驱动开关元件的频率来抑制声共振。 当与驱动频率相关的基本频率等于或高于1MHz时，调制宽度被设置为等于或高于20kHz。

公开(公告)号：US20090212710A1

公开(公告)日：2009-08-27

申请号：US12388740

申请日：2009-02-19

申请人： Kotaro Matsui ,  Takayoshi Kitagawa

发明人： Kotaro Matsui ,  Takayoshi Kitagawa

IPC分类号： H05B37/02

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执行ON / OFF控制; 以及对驱动电流进行恒定电流控制的恒流控制部。 恒流控制单元包括用于对开关单元进行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，并且当开关单元执行OFF控制时，向开关单元提供电压信号。

公开(公告)号：US20120019170A1

公开(公告)日：2012-01-26

申请号：US13183553

申请日：2011-07-15

申请人： Kotaro Matsui

发明人： Kotaro Matsui

IPC分类号： H05B37/02

CPC分类号： H05B33/0821 ,  H05B33/0815 ,  Y02B20/347

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器，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。

公开(公告)号：US20100270926A1

公开(公告)日：2010-10-28

申请号：US12758885

申请日：2010-04-13

申请人： Kotaro Matsui ,  Takao Sugiyama

发明人： Kotaro Matsui ,  Takao Sugiyama

IPC分类号： B60Q1/14

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.

摘要翻译： 车灯点亮控制装置包括：电流控制单元，其是非绝缘类型并且向半导体光源提供电源电流; 异常检测单元，其基于提供给所述半导体光源的电源电压或电源电压中的至少一个来检测正极侧输出的异常，并输出指示所述异常的信号; 以及旁路单元，其根据指示异常的信号绕过从电流控制单元提供的电源电流。

公开(公告)号：US20090267520A1

公开(公告)日：2009-10-29

申请号：US12427017

申请日：2009-04-21

申请人： Kotaro Matsui ,  Takayoshi Kitagawa ,  Takao Sugiyama

发明人： Kotaro Matsui ,  Takayoshi Kitagawa ,  Takao Sugiyama

IPC分类号： H05B37/00

CPC分类号： H05B33/0818

摘要： A lighting control device includes a current driving portion for DC-controlling or PWM-controlling an LED unit, and a disconnection detection portion for detecting disconnection of the LED unit. The disconnection detection portion has a latch circuit and a reset portion. The latch circuit provides a disconnection detection signal after it is detected that disconnection has occurred for a prescribed time. The reset portion resets the disconnection detection signal based on prescribed conditions.

摘要翻译： 照明控制装置包括用于LED单元的DC控制或PWM控制的电流驱动部分，以及用于检测LED单元的断开的断开检测部分。 断线检测部分具有锁存电路和复位部分。 闩锁电路在检测到断开已经发生规定时间之后提供断开检测信号。 复位部根据规定的条件来复位断线检测信号。