公开(公告)号：US5449973A

公开(公告)日：1995-09-12

申请号：US79947

申请日：1993-06-23

申请人： Masayasu Yamashita ,  Goichi Oda ,  Masaru Sasaki

发明人： Masayasu Yamashita ,  Goichi Oda ,  Masaru Sasaki

IPC分类号： B60Q1/04 ,  B60Q11/00 ,  H05B41/16 ,  H05B41/282 ,  H05B41/285 ,  H05B41/288 ,  H05B41/292 ,  H05B41/38 ,  H05B37/02

CPC分类号： H05B41/2853 ,  B60Q11/00 ,  H05B41/2886 ,  H05B41/2923 ,  H05B41/386 ,  Y02B20/185 ,  Y02B20/186 ,  Y02B20/202 ,  Y02B20/208

摘要： Disclosed is a lighting circuit for a vehicular discharge lamp which controls current limitation in accordance with the status of the discharge lamp to thereby suppress an increase in consumption current when a source voltage drops. In the lighting circuit, when a lighting switch 5 is set on, a battery voltage is boosted in a DC booster circuit and is converted into an AC voltage by a DC/AC converter before it is applied to a metal halide lamp. The DC booster circuit has a chopper structure having an inductor and a field effect transistor (FET). A control signal from a control circuit is sent to the FET. The control circuit has a V (voltage)-I (current) controller for controlling the lighting and a PWM (Pulse Width Modulation) controller. The lighting circuit further has a current compensator to prevent an excessive current from flowing through the FET at the beginning of the lighting or when the battery voltage drops. This current compensator monitors the status of the lamp, produces a signal of a sawtooth wave corresponding to this status, and superimposes this signal on a current detection signal, thereby restricting the peak value of the current flowing through the FET and the average current with the help of the slope compensating function of the PWM controller. Thus, current limitation is controlled so that when the lamp current is large, the degree of current limitation is increased.

摘要翻译： 公开了一种用于根据放电灯的状态控制电流限制从而抑制电源电压降低时的消耗电流增加的车辆放电灯的点亮电路。 在点亮电路中，当照明开关5置于开启状态时，电池电压在直流升压电路中升压，并且在施加到金属卤化物灯之前由DC / AC转换器转换为交流电压。 DC升压电路具有具有电感器和场效应晶体管（FET）的斩波器结构。 来自控制电路的控制信号被发送到FET。 控制电路具有用于控制照明的V（电压）-I（电流）控制器和PWM（脉宽调制）控制器。 点亮电路还具有电流补偿器，以防止在点亮开始时或当电池电压下降时过量的电流流过FET。 该电流补偿器监视灯的状态，产生与该状态相对应的锯齿波信号，并将该信号叠加在电流检测信号上，由此限制流过FET的电流的峰值和平均电流 有助于PWM控制器的斜率补偿功能。 因此，电流限制被控制，使得当灯电流大时，电流限制的程度增加。

公开(公告)号：US5382876A

公开(公告)日：1995-01-17

申请号：US923503

申请日：1992-08-03

申请人： Masatoshi Sugasawa ,  Atsushi Toda ,  Masaru Sasaki ,  Masayasu Yamashita ,  Akihiro Matsumoto ,  Akiyoshi Ozaki ,  Goichi Oda

发明人： Masatoshi Sugasawa ,  Atsushi Toda ,  Masaru Sasaki ,  Masayasu Yamashita ,  Akihiro Matsumoto ,  Akiyoshi Ozaki ,  Goichi Oda

IPC分类号： F21S8/10 ,  F21V19/00 ,  F21V23/00 ,  F21V25/00 ,  B60Q1/34

CPC分类号： F21V25/00 ,  B60Q1/007 ,  B60Q1/0088 ,  B60Q1/0094 ,  F21S48/1109 ,  F21S48/1186 ,  Y10S315/07

摘要： A cord connection structure for connecting a ballast circuit and a starter circuit in which an output cord from a starter circuit unit mounted on a lamp body is connected to a discharge bulb inserted into a bulb insertion hole, and an output cord from a ballast circuit unit disposed in the vicinity of a starter circuit unit is removably connected through a connector to a connector connection part (receptacle) provided in the starter circuit unit, characterized in that a connector slip-off preventing protector covering the connector coupled into the connector connection part is provided around the connector connection part (receptacle). Such a construction makes it difficult for a general user to connect and disconnect the connector of high voltage to and from the connector connection part.

摘要翻译： 一种用于连接镇流器电路和起动器电路的电缆连接结构，其中来自安装在灯体上的起动电路单元的输出线连接到插入到灯泡插入孔中的放电灯泡，以及来自镇流器电路单元的输出线 设置在起动器电路单元附近的可拆卸地通过连接器连接到设置在起动器电路单元中的连接器连接部分（插座），其特征在于，覆盖连接到连接器连接部分中的连接器的连接器防脱保护器是 设置在连接器连接部分（插座）周围。 这样的结构使得一般用户难以将连接器与连接器连接部分连接和断开。

公开(公告)号：US5939835A

公开(公告)日：1999-08-17

申请号：US842537

申请日：1997-04-15

申请人： Hitoshi Takeda ,  Toru Nakayama ,  Goichi Oda ,  Masayasu Yamashita

发明人： Hitoshi Takeda ,  Toru Nakayama ,  Goichi Oda ,  Masayasu Yamashita

IPC分类号： F21V23/00 ,  F21V23/02 ,  H05B41/02 ,  H05B41/24 ,  H05B41/292 ,  H05K1/02 ,  H05K1/14 ,  H05B37/02

CPC分类号： H05B41/02 ,  H05B41/2921 ,  H05K1/0213 ,  H05K1/14 ,  Y02B20/208 ,  Y10S315/05

摘要： A discharge lamp lighting device for turning on a discharge lamp, including: a power system which generates a high voltage, the power system having a grounding line; a control system having an analog circuit which has a grounding line, and a digital circuit which has a ground wire, the control system for controlling the power system; and a power source system for generating voltages to drive the power system and the control system, wherein the grounding line of the power system, the grounding line of the analog circuit in the control system and the grounding line of the digital circuit in the control system are provided independently of each other.

摘要翻译： 一种用于接通放电灯的放电灯点亮装置，包括：产生高电压的电力系统，所述电力系统具有接地线; 具有具有接地线的模拟电路的控制系统和具有地线的数字电路，用于控制电力系统的控制系统; 以及用于产生用于驱动电力系统和控制系统的电压的电源系统，其中电力系统的接地线，控制系统中的模拟电路的接地线和控制系统中的数字电路的接地线 彼此独立地设置。

公开(公告)号：US5907224A

公开(公告)日：1999-05-25

申请号：US798173

申请日：1997-02-10

申请人： Masayasu Yamashita ,  Atsushi Toda ,  Goichi Oda

发明人： Masayasu Yamashita ,  Atsushi Toda ,  Goichi Oda

IPC分类号： H05B41/282 ,  H05B41/292 ,  H05B37/00

CPC分类号： H05B41/2923 ,  Y02B20/208 ,  Y10S315/07

摘要： A lighting circuit for a discharge lamp comprises abnormality detection means for detecting an input voltage and/or an input current to be input to a lighting circuit from a power supply and stopping power supply to a discharge lamp when detecting an abnormality in the value of the input voltage and/or the value of the input current. First and second reference values or reference ranges for comparison (the first reference value or reference range is smaller than the second reference value or reference range) are set for the input voltage and/or the input current. When the state where the value of the input voltage and/or the value of the input current is equal to or smaller than the first reference value or the first reference range continues for a predetermined time or longer, the abnormality detection means stops power supply to the discharge lamp. When the state where the value of the input voltage and/or the value of the input current is equal to or greater than the second reference value or the second reference range continues for a predetermined time or longer, the abnormality detection means permits power supply to the discharge lamp.

摘要翻译： 一种用于放电灯的点亮电路，包括异常检测装置，用于检测输入电压和/或从电源输入到点亮电路的输入电流，并且当检测到该值的异常时停止对放电灯的供电 输入电压和/或输入电流的值。 对于输入电压和/或输入电流设定第一和第二参考值或用于比较的参考范围（第一参考值或参考范围小于第二参考值或参考范围）。 当输入电压的值和/或输入电流的值等于或小于第一参考值或第一参考范围的状态持续预定时间或更长时，异常检测装置停止向 放电灯。 当输入电压值和/或输入电流值等于或大于第二参考值或第二参考范围的状态持续预定时间或更长时，异常检测装置允许向 放电灯。

公开(公告)号：US5828177A

公开(公告)日：1998-10-27

申请号：US795667

申请日：1997-02-06

申请人： Atsushi Toda ,  Goichi Oda ,  Masayasu Yamashita

发明人： Atsushi Toda ,  Goichi Oda ,  Masayasu Yamashita

IPC分类号： H05B41/24 ,  H05B41/16 ,  H05B41/18 ,  H05B41/292 ,  H05B37/00

CPC分类号： H05B41/2921

摘要： A lighting circuit for a discharge lamp comprises detection means for detecting a voltage and/or a current to be applied to a discharge lamp or a voltage and/or a current equivalent thereto, input voltage/current detection means for detecting an input voltage and/or an input current to the lighting circuit, and abnormality detection means for stopping power supply to the discharge lamp when detecting an abnormality in the discharge lamp or a circuit abnormality based on those detection signals. In the abnormality detection means, a plurality of reference values for comparison or a plurality of reference ranges are set for the detection signals, and determination times are set in association with the reference values or reference ranges. The abnormality detection means compares the levels of the detection signals with each of the reference values or the reference ranges and determines that an abnormality in the discharge lamp or a circuit abnormality has occurred when a certain comparison result continues for an associated determination time or longer.

摘要翻译： 一种用于放电灯的点亮电路，包括用于检测施加到放电灯的电压和/或电流的检测装置或与其等效的电压和/或电流的输入电压/电流检测装置，用于检测输入电压和/ 或者对照明电路的输入电流，以及异常检测装置，用于当检测到放电灯的异常或基于那些检测信号的电路异常时停止对放电灯的供电。 在异常检测装置中，针对检测信号设定多个用于比较的参考值或多个参考范围，并且与参考值或参考范围相关联地设定确定时间。 异常检测装置将检测信号的电平与参考值或参考范围中的每一个进行比较，并且当某个比较结果持续相关联的确定时间或更长时，确定放电灯的异常或电路异常已经发生。

公开(公告)号：US5783908A

公开(公告)日：1998-07-21

申请号：US655483

申请日：1996-05-30

申请人： Atsushi Toda ,  Masayasu Yamashita ,  Goichi Oda

发明人： Atsushi Toda ,  Masayasu Yamashita ,  Goichi Oda

IPC分类号： H05B41/24 ,  H05B41/18 ,  H05B41/282 ,  H05B41/292 ,  H05B37/02

CPC分类号： H05B41/2921 ,  Y10S315/07

摘要： In a lighting circuit, a battery voltage is sent via a DC power supply section to a DC-AC converter to be converted to a square-wave AC voltage which is in turn supplied to a discharge lamp. The lighting circuit comprises an auxiliary power supply section for producing a predetermined voltage based on the input voltage from a battery and supplying this predetermined voltage to the individual sections of the lighting circuit and an abnormality detection circuit for detecting an abnormality in the discharge lamp, the circuit status, the battery voltage and so forth. In accordance with a signal from the abnormality detection circuit, a switch section, which is provided on a current line whose current is smaller than a current flowing on a power supply line to the discharge lamp, is switched on or off to enable or disable the auxiliary power supply section, thereby permitting or inhibiting power supply to the discharge lamp.

摘要翻译： 在照明电路中，电池电压通过直流电源部分发送到DC-AC转换器，以转换成方波AC电压，该方波又被提供给放电灯。 照明电路包括辅助电源部分，用于基于来自电池的输入电压产生预定电压并将该预定电压提供给点亮电路的各个部分，以及用于检测放电灯的异常的异常检测电路， 电路状态，电池电压等。 根据来自异常检测电路的信号，设置在电流小于流过放电灯的电源线上的电流的电流线上的开关部分被接通或断开，以使能或禁止 辅助电源部分，从而允许或禁止向放电灯供电。

公开(公告)号：US5572094A

公开(公告)日：1996-11-05

申请号：US522087

申请日：1995-08-31

申请人： Masayasu Yamashita ,  Atsushi Toda ,  Goichi Oda

发明人： Masayasu Yamashita ,  Atsushi Toda ,  Goichi Oda

IPC分类号： H05B41/282 ,  H05B41/00 ,  H05B41/16 ,  H05B41/288 ,  H05B41/38 ,  H05B41/392 ,  G05F1/00

CPC分类号： H05B41/3928 ,  H05B41/2882 ,  H05B41/386 ,  Y02B20/202 ,  Y02B20/206 ,  Y10S315/07

摘要： A lighting circuit converts the output voltage of a DC booster circuit to an AC voltage which is in turn supplied to a discharge lamp. The lighting circuit comprises a current/voltage detector for detecting signals equivalent to the current and voltage of the discharge lamp and a control circuit for controlling the output voltage of the DC booster circuit in accordance with detection signals from the current/voltage detector. The lighting circuit further comprises a first lighting acceleration controller for supplying power equal to or greater than-the rated power to the discharge lamp when the lamp voltage is smaller than a predetermined value, and a second lighting acceleration controller for detecting the light-OFF time of the discharge lamp and changing the length of a period in which the current or power to be supplied to the discharge lamp by the second lighting acceleration controller is greater than the current or power to be supplied to the discharge lamp by the first lighting acceleration controller, in accordance with the light-OFF time of the discharge lamp.

摘要翻译： 点亮电路将直流升压电路的输出电压转换成再次提供给放电灯的交流电压。 照明电路包括用于检测与放电灯的电流和电压等效的信号的电流/电压检测器，以及根据来自电流/电压检测器的检测信号来控制DC升压电路的输出电压的控制电路。 照明电路还包括第一照明加速控制器，用于当灯电压小于预定值时向放电灯提供等于或大于额定功率的功率;以及第二照明加速控制器，用于检测照明时间 并且改变由第二照明加速度控制器提供给放电灯的电流或功率的时间段的长度大于由第一照明加速度控制器提供给放电灯的电流或功率 ，根据放电灯的熄灭时间。

公开(公告)号：US5565743A

公开(公告)日：1996-10-15

申请号：US521577

申请日：1995-08-30

申请人： Masayasu Yamashita ,  Goichi Oda

发明人： Masayasu Yamashita ,  Goichi Oda

IPC分类号： H05B41/24 ,  H05B41/233 ,  H05B41/282 ,  H05B41/288 ,  H05B41/292 ,  H05B41/38 ,  G05F1/00

CPC分类号： H05B41/2886 ,  H05B41/2882 ,  H05B41/2928 ,  H05B41/388 ,  Y02B20/204 ,  Y10S315/05 ,  Y10S315/07

摘要： A lighting circuit, which is lit with a voltage with a square wave, has a DC booster circuit, a bridge type DC-AC converter and an inductor provided at the subsequent stage of the DC-AC converter. A metal halide lamp is connected in series to the inductor. Another inductor and a capacitor are provided between the DC booster circuit and the DC-AC converter. A series circuit of a resistor and a diode is connected in parallel to the second inductor. This structure generates a resonance voltage having a high peak value to compensate for a re-ignition voltage of a discharge lamp which is produced when the polarity of the square-wave voltage is switched, thereby preventing the lighting failure of the discharge lamp immediately after the lighting starts.

摘要翻译： 点亮具有方波电压的照明电路具有在DC-AC转换器的后级设置的DC升压电路，桥式DC-AC转换器和电感器。 金属卤化物灯与电感器串联连接。 在DC升压电路和DC-AC转换器之间提供另一电感器和电容器。 电阻器和二极管的串联电路并联连接到第二电感器。 该结构产生具有高峰值的谐振电压，以补偿当方波电压的极性被切换时产生的放电灯的再点火电压，从而防止放电灯的点亮不良 照明开始。

公开(公告)号：US5629588A

公开(公告)日：1997-05-13

申请号：US525176

申请日：1995-09-08

申请人： Goichi Oda ,  Atsushi Toda ,  Masayasu Yamashita

发明人： Goichi Oda ,  Atsushi Toda ,  Masayasu Yamashita

IPC分类号： G01R31/02 ,  H02M7/48 ,  H05B41/282 ,  H05B41/292 ,  G05F1/00

CPC分类号： H05B41/2921 ,  Y02B20/208 ,  Y10S315/07

摘要： A lighting circuit converts the output voltage of a DC booster circuit to an AC voltage which is in turn supplied to a discharge lamp connected between AC output terminals. The lighting circuit comprises a short-circuit detector for detecting a change of a DC voltage from the DC booster circuit to a square-wave voltage when short-circuiting between one of the AC output terminals and ground occurs, and sends a detection signal via a hold circuit to a power cutoff relay circuit. As a result, a relay contact in the power cutoff relay circuit is opened to inhibit the operation of the lighting circuit.

摘要翻译： 点亮电路将直流升压电路的输出电压转换为交流电压，该交流电压又被提供给连接在交流输出端子之间的放电灯。 照明电路包括短路检测器，用于在AC输出端子和接地之间的短路发生时检测从DC升压电路的直流电压变化到方波电压，并且经由 保持电路到断电继电器电路。 结果，断电继电器电路中的继电器触点被打开以禁止点灯电路的操作。

公开(公告)号：US5514935A

公开(公告)日：1996-05-07

申请号：US177374

申请日：1994-01-05

申请人： Goichi Oda ,  Masayasu Yamashita

发明人： Goichi Oda ,  Masayasu Yamashita

IPC分类号： H05B41/24 ,  B60Q1/04 ,  H05B41/282 ,  H05B41/288 ,  H05B37/02

CPC分类号： H05B41/2886 ,  H05B41/2888 ,  Y02B20/202 ,  Y10S315/05 ,  Y10S315/07

摘要： Disclosed is a lighting circuit for a discharge lamp, which employs a rectangular-wave based lighting system and is designed to prevent lighting failure from frequently occurring in the discharge lamp immediately after the lighting of the discharge lamp starts or at the end of the lamp's life. In the lighting circuit, a battery voltage is boosted by a DC booster circuit and is then converted to a rectangular-wave voltage by a DC/AC converter. This rectangular-wave voltage is then applied via an inductor of an igniter circuit to a metal halide lamp. The DC booster circuit has a chopper type structure and has a smoothing capacitor at the output stage. A resonance controller comprising a diode and a resonance capacitor is located between the DC booster circuit and the DC/AC converter. The DC/AC converter has a bridge structure having field effect transistors (FETs). The two pairs of FETs are reciprocally switched from one pair to the other by a drive controller. The diode of the resonance controller serves to cut off the current path to block the coupling of the inductor to the smoothing capacitor of the DC booster circuit and couple the resonance capacitor to the inductor, when the polarity of the rectangular-wave voltage is inverted.

摘要翻译： 本发明公开了一种放电灯点灯电路，其采用矩形波照明系统，其设计是为了防止在放电灯点亮之后立即在放电灯点亮或灯寿命结束之后频繁出现照明故障 。 在点亮电路中，电池电压由DC升压电路升压，然后通过DC / AC转换器转换成矩形波电压。 然后将该矩形波电压经由点火器电路的电感器施加到金属卤化物灯。 直流升压电路具有斩波型结构，在输出级具有平滑电容器。 包括二极管和谐振电容器的谐振控制器位于DC升压电路和DC / AC转换器之间。 DC / AC转换器具有具有场效应晶体管（FET）的桥结构。 两对FET通过驱动控制器从一对互相交换到另一对。 当矩形波电压的极性反转时，谐振控制器的二极管用于切断电流通路以阻断电感器与直流升压电路的平滑电容器的耦合，并将谐振电容器耦合到电感器。