公开(公告)号：US20050180139A1

公开(公告)日：2005-08-18

申请号：US11061359

申请日：2005-02-18

申请人： Hitoshi Takeda ,  Masayasu Ito

发明人： Hitoshi Takeda ,  Masayasu Ito

IPC分类号： B60Q1/16 ,  B60Q1/12 ,  B60Q1/14 ,  B60Q1/24 ,  F21S8/10 ,  F21S4/00

CPC分类号： B60Q1/12 ,  B60Q1/143 ,  B60Q1/24 ,  B60Q2300/054 ,  B60Q2300/122 ,  F21S41/141 ,  F21S41/143 ,  F21S41/147 ,  F21Y2115/10

摘要： A vehicle head lamp is disclosed for use in a vehicle, and includes a plurality of semiconductor light sources which differ in directions of radiation; an optical system disposed for common use by the plurality of semiconductor light sources; and a luminous energy control section for changing a ratio among luminous energies emitted by the respective semiconductor light sources in accordance with a vehicle-originated signal provided by a vehicle-side. In addition, the luminous energy control section may change the ratio among the luminous energy in accordance with a rotation angle by means of receiving a signal indicating a rotation angle of a steering wheel as the vehicle-originated signal.

摘要翻译： 公开了用于车辆的车顶灯，并且包括在辐射方向上不同的多个半导体光源; 光学系统，被设置为由多个半导体光源共同使用; 以及用于根据由车辆侧提供的车辆起始信号来改变由各个半导体光源发射的发光能量之间的比率的光能控制部分。 此外，发光能量控制部可以通过接收表示方向盘的旋转角度的信号作为车辆起始信号，根据旋转角度来改变发光能量之间的比例。

公开(公告)号：US06876153B2

公开(公告)日：2005-04-05

申请号：US10684756

申请日：2003-10-14

申请人： Masayasu Ito ,  Hitoshi Takeda ,  Kentaro Murakami

发明人： Masayasu Ito ,  Hitoshi Takeda ,  Kentaro Murakami

IPC分类号： H02M3/28 ,  H02M3/155 ,  H05B33/08 ,  H05B39/04 ,  H05B37/02

CPC分类号： H05B33/0815 ,  H05B33/0824 ,  H05B39/047 ,  Y10S315/07

摘要： A switching regulator circuit for controlling power supplied to a load, includes: a switching device for repeatedly going on or off to control a voltage or a current applied to the load; a detector for detecting a supply voltage or a supply current supplied to the load; and a controller for controlling a duration ratio of a period in which the switching device is on or off based on the supply voltage or supply current detected by the detector, so as to control a value of the voltage applied to the load. The controller includes: a saw-tooth wave generation unit for charging and discharging a saw-tooth wave generation capacitor grounded at one end so as to change a voltage at another end of the saw-tooth wave generation capacitor to a saw-tooth wave; a charge/discharge controller for changing a ratio of a charge rate and a discharge rate of the saw-tooth wave generation capacitor based on the supply voltage or supply current detected by the detector; and a switching device controller for comparing a voltage value of the saw-tooth wave generation capacitor with a predetermined threshold value and controlling the duration ratio of the period in which the switching device is on or off based on the comparison result.

摘要翻译： 一种用于控制提供给负载的电力的开关调节器电路，包括：重复接通或关断以控制施加到负载的电压或电流的开关装置; 用于检测供应电压或提供给负载的电源电流的检测器; 以及控制器，用于基于由检测器检测到的电源电压或电源电流来控制开关器件导通或截止的周期的持续时间比，以便控制施加到负载的电压的值。 该控制器包括：锯齿波产生单元，用于对在一端接地的锯齿波产生电容器进行充电和放电，以将锯齿波产生电容器的另一端的电压改变为锯齿波; 充电/放电控制器，用于根据由检测器检测的电源电压或电源电流来改变锯齿波产生电容器的充电速率和放电速率的比率; 以及切换装置控制器，用于将锯齿波产生电容器的电压值与预定阈值进行比较，并且基于比较结果控制开关装置开启或关闭的周期的持续时间比。

公开(公告)号：US20050062434A1

公开(公告)日：2005-03-24

申请号：US10915079

申请日：2004-08-10

申请人： Takao Muramatsu ,  Masayasu Ito

发明人： Takao Muramatsu ,  Masayasu Ito

IPC分类号： H05B41/24 ,  H01F38/08 ,  H05B41/04 ,  H05B41/18 ,  H05B41/288 ,  H05B37/02

CPC分类号： H05B41/2881 ,  H05B41/042 ,  Y02B20/204

摘要： A discharge lamp illumination circuit 1 has a DC-AC conversion circuit 3 which effects AC conversion and boosting upon receipt of a DC input, and a starter circuit 4 for supplying a start-up signal to a discharge lamp. Power output from the DC-AC conversion circuit 3 is controlled by control means 6, thereby controlling illumination of a discharge lamp 10. An AC transformer 7 constituting the DC-AC conversion circuit 3 is provided, and a primary circuit and a secondary circuit, both forming part of the AC transformer 7, are insulated from each other. The start-up signal boosted by the AC transformer 7 is superposed on the AC-converted output, and the resultant signal is supplied to the discharge lamp 10. Thus, the need for a starter transformer specifically designed for startup can be obviated.

摘要翻译： 放电灯照明电路1具有在接收到DC输入时实现AC转换和升压的DC-AC转换电路3，以及用于向放电灯提供启动信号的起动电路4。 来自DC-AC转换电路3的电力输出由控制装置6控制，从而控制放电灯10的照明。构成DC-AC转换电路3的AC变压器7设置有初级电路和次级电路， 构成交流变压器7的一部分的两者彼此绝缘。 由AC变压器7升压的启动信号叠加在AC转换的输出上，并将所得到的信号提供给放电灯10.因此，可以避免需要专门设计用于起动的起动变压器。

公开(公告)号：US20050035725A1

公开(公告)日：2005-02-17

申请号：US10914664

申请日：2004-08-09

申请人： Shinji Ohta ,  Masayasu Ito

发明人： Shinji Ohta ,  Masayasu Ito

IPC分类号： H05B41/24 ,  H05B41/18 ,  H05B41/288 ,  H05B41/38 ,  H05B41/16

CPC分类号： H05B41/382 ,  H05B41/2883 ,  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. Power output from the DC-AC conversion circuit 3 is controlled by means of control means 6. The DC-AC conversion circuit 3 has an AC conversion transformer 7; a plurality of switching elements 5H and 5L; and a resonance capacitor 8. The switching elements are activated by the control means 6, thereby causing serial resonance between the resonance capacitor 8 and a leakage inductance component of the AC conversion transformer 7, or between the resonance capacitor 8 and an inductance component 9 connected to the resonance capacitor 8. Provided that a resonance frequency achieved during an extinction period of the discharge lamp 10 is denoted as f1, the operating frequency is first regulated to a frequency level deviating from f1 and then gradually reduced so as to approach f1 in connection with a no-load voltage which is applied to the discharge lamp before illuminating.

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DC输入时实现DC-AC转换和升压，以及起动电路4.来自DC-AC转换电路3的输出的功率由装置 DC-AC转换电路3具有AC变换变压器7; 多个开关元件5H和5L; 和谐振电容器8.开关元件由控制装置6启动，由此引起谐振电容器8与交流转换变压器7的漏电感分量之间或谐振电容器8和连接的电感元件9之间的串联谐振 假设在放电灯10的消光期间实现的谐振频率为f1，则将工作频率首先调节到与f1相反的频率水平，然后逐渐减小，以便在连接中接近f1 具有在照明之前施加到放电灯的空载电压。

公开(公告)号：US06707261B2

公开(公告)日：2004-03-16

申请号：US10379487

申请日：2003-03-04

申请人： Masayasu Ito ,  Shinji Ohta

发明人： Masayasu Ito ,  Shinji Ohta

IPC分类号： H05B3700

CPC分类号： H05B41/2887 ,  H05B41/2886 ,  Y02B20/202 ,  Y10S315/05 ,  Y10S315/07

摘要： In a discharge lamp lighting circuit having a DC-AC converter circuit, a circuit for generating a driving voltage for the DC-AC converter circuit is simplified and cost and power losses are reduced. A discharge lamp lighting circuit 1 has a DC-DC converter circuit 3 for converting an input voltage from a DC power source 2 to a required DC voltage, a DC-AC converter circuit 4 disposed down-circuit of the DC-DC converter circuit and having a bridge-type construction using a plurality of switching devices, and a control circuit 7 for performing lighting control of a discharge lamp 6. A voltage generated from a power supply voltage to the control circuit 7 by a driving voltage generating part 9B is supplied as the driving voltage of the DC-AC converter circuit 4.

摘要翻译： 在具有DC-AC转换器电路的放电灯点亮电路中，简化了用于产生DC-AC转换器电路的驱动电压的电路，并降低了成本和功率损耗。 放电灯点亮电路1具有用于将来自直流电源2的输入电压转换为所需直流电压的DC-DC转换电路3，设置在DC-DC转换器电路的下电路的DC-AC转换电路4，以及 具有使用多个开关装置的桥式结构，以及用于进行放电灯6的点亮控制的控制电路7.供给通过驱动电压产生部9B从控制电路7向电源电压产生的电压 作为DC-AC转换器电路4的驱动电压。

公开(公告)号：US06617809B2

公开(公告)日：2003-09-09

申请号：US10074120

申请日：2002-02-12

申请人： Masayasu Ito ,  Hitoshi Takeda

发明人： Masayasu Ito ,  Hitoshi Takeda

IPC分类号： H05B3700

CPC分类号： H05B41/28 ,  H05B41/234 ,  H05B41/282 ,  Y02B20/183

摘要： A lighting circuit carrying out lighting control of plural discharge lamps in which depressing of ripple current and noise, small-sizing, and low cost are realized. Plural DC-DC converting circuits (3_1, 3_2) for converting direct current input voltage to designated direct current voltage by ON/OFF control of switching elements in a discharge lamp lighting circuit carrying out controlling lighting plural discharge lamps. Control signal from a control circuit 7 is supplied to each switching element constituting each DC-DC converting circuit, and state of conductivity or non-conductivity of each switching element is controlled as non-synchronization.

摘要翻译： 实现了抑制纹波电流和噪声，小尺寸和低成本的多个放电灯的点亮控制的照明电路。 用于通过执行控制点亮多个放电灯的放电灯点亮电路中的开关元件的ON / OFF控制将直流输入电压转换为指定直流电压的多个DC-DC转换电路（3_1,3_2）。 来自控制电路7的控制信号被提供给构成每个DC-DC转换电路的每个开关元件，并且每个开关元件的导电性或非导电性状态被控制为不同步。

公开(公告)号：US06600297B2

公开(公告)日：2003-07-29

申请号：US10109358

申请日：2002-03-28

申请人： Hitoshi Takeda ,  Tomokazu Suzuki ,  Masayasu Ito

发明人： Hitoshi Takeda ,  Tomokazu Suzuki ,  Masayasu Ito

IPC分类号： G05F1563

CPC分类号： G05F1/575 ,  B60R15/04

摘要： A power supply unit having a series regulator that changes an input DC voltage input from a DC power supply into a stabilized output DC voltage lower than the input DC voltage, includes: a power consuming unit, provided on a direct current path between the DC power supply and the series regulator, including a parallel circuit formed by a first fixed resistor and a semiconductor device; and a current setting unit operable to set the amount of a current flowing between a current input and a current output of the semiconductor device, wherein the current input of the semiconductor device is arranged on the DC power supply side thereof, the current output of the semiconductor device is arranged on the series regulator side thereof, and a setting input of the semiconductor device is connected to a setting output of the current setting unit.

摘要翻译： 具有串联调节器的电源单元，其将从直流电源输入的输入直流电压改变为低于输入直流电压的稳定的输出直流电压，包括：功率消耗单元，设置在DC电力之间的直流路径上 电源和串联调节器，包括由第一固定电阻器和半导体器件形成的并联电路; 以及电流设定单元，其可操作以设定在所述半导体器件的电流输入和电流输出之间流动的电流量，其中所述半导体器件的电流输入布置在所述半导体器件的直流电源侧， 半导体器件布置在其串联调节器侧，并且半导体器件的设置输入连接到当前设置单元的设置输出。

公开(公告)号：US06489730B2

公开(公告)日：2002-12-03

申请号：US09765198

申请日：2001-01-18

申请人： Masayasu Ito ,  Hitoshi Takeda

发明人： Masayasu Ito ,  Hitoshi Takeda

IPC分类号： G05F100

CPC分类号： H05B41/288 ,  H02M3/33561

摘要： A discharge-lamp illumination circuit has a DC power supply circuit, a DC-AC conversion circuit, and a control circuit for controlling a voltage from the DC power supply circuit. The DC power supply circuit has a transformer and a first switching element connected in series with a primary coil of the transformer. The activation/deactivation of the first switching element is controlled by the control signal from the control circuit. The transformer is equipped with secondary coils equal in number with the discharge lamps. Each secondary coil is equipped with a second switching element whose activation or deactivation is controlled by a signal from the control circuit. The secondary coils provide different voltages by means of control of the second switching elements.

摘要翻译： 放电灯照明电路具有DC电源电路，DC-AC转换电路和用于控制来自直流电源电路的电压的控制电路。 直流电源电路具有与变压器的初级线圈串联连接的变压器和第一开关元件。 第一开关元件的激活/去激活由来自控制电路的控制信号控制。 变压器配备了与放电灯数量相等的次级线圈。 每个次级线圈配备有第二开关元件，其激活或去激活由来自控制电路的信号控制。 次级线圈通过第二开关元件的控制来提供不同的电压。

公开(公告)号：US06417624B1

公开(公告)日：2002-07-09

申请号：US09650394

申请日：2000-08-29

申请人： Masayasu Ito ,  Hitoshi Takeda ,  Soichi Yagi ,  Shuji Matsuura ,  Akihiro Mochizuki ,  Hiroki Ishibashi ,  Tomoyuki Ichikawa

发明人： Masayasu Ito ,  Hitoshi Takeda ,  Soichi Yagi ,  Shuji Matsuura ,  Akihiro Mochizuki ,  Hiroki Ishibashi ,  Tomoyuki Ichikawa

IPC分类号： H05B4146

CPC分类号： H05B41/46 ,  B60Q1/1415 ,  B60Q11/002

摘要： A lighting system provides an auxiliary lighting circuit for turning on an auxiliary light source in place of the discharge lamp if the abnormality in the lighting circuit is detected.

摘要翻译： 如果检测到照明电路的异常，照明系统提供用于代替放电灯打开辅助光源的辅助照明电路。

公开(公告)号：US06362577B1

公开(公告)日：2002-03-26

申请号：US09596180

申请日：2000-06-16

申请人： Masayasu Ito ,  Hitoshi Takeda

发明人： Masayasu Ito ,  Hitoshi Takeda

IPC分类号： H05B3700

CPC分类号： H05B41/382 ,  H05B41/042 ,  H05B41/2881

摘要： In a discharge lamp lighting circuit 1 using a common starter circuit 5A to a plurality of discharge lamps 6i (i=1, 2, . . . , n) to start the discharge lamps 6, the starter circuit 5A has a transformer 7 comprising a plurality of secondary windings 7bi (i=1, 2, . . . , n) provided for a primary winding 7a. A primary circuit 8 comprises a capacitor 9 and a switch element 10 and the generated voltage when the capacitor 9 is charged when the switch element 10 conducts is increased by the transformer 7, then is applied through each secondary winding to the corresponding discharge lamp.

摘要翻译： 在使用公共起动电路5A的多个放电灯6i（i = 1,2，...，n）的放电灯点亮电路1中，启动放电灯6，起动电路5A具有变压器7，变压器7包括： 为初级绕组7a提供多个次级绕组7bi（i = 1,2，...，n）。 初级电路8包括电容器9和开关元件10，并且当开关元件10导通时电容器9充电时产生的电压由变压器7增加，然后通过每个次级绕组施加到相应的放电灯。