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1. 发明授权

US6087776A Discharge lamp lighting circuit with protection circuit 失效
标题翻译：放电灯点亮电路带保护电路
公开(公告)号：US6087776A
公开(公告)日：2000-07-11
申请号：US6883
申请日：1998-01-14
申请人： Masayasu Yamashita , Atsushi Toda , Jun Yabuzaki
发明人： Masayasu Yamashita , Atsushi Toda , Jun Yabuzaki
IPC分类号： H05B41/16 , H05B41/24 , H05B41/292 , B60Q1/02
CPC分类号： H05B41/2923 , H05B41/2925 , Y02B20/208 , Y10S315/07
摘要： A discharge lamp lighting circuit which, in turning on a discharge lamp, when an abnormal condition occurs in a discharge lamp or in the present discharge lamp lighting circuit due to a transient cause, can resume the power supply to the discharge lamp at the time when the present transient abnormal condition cause disappears. The discharge lamp lighting circuit includes lighting control for controlling the lighting of a discharge lamp, an abnormal condition detector for detecting an abnormal condition occurring in the discharge lamp or in the discharge lamp lighting circuit, and a protection circuit which receives a signal from the abnormal condition detector to thereby stop the power supply to the discharge lamp. The protection circuit is composed of first protection unit and second protection unit. When a permanent abnormal condition is detected in the discharge lamp or in the discharge lamp lighting circuit, the power supply to the discharge lamp is cut off by the first protection unit and such cutoff condition of the power supply is also held. Also, when a transient abnormal condition is detected in the discharge lamp or in the discharge lamp lighting circuit, the power supply to the discharge lamp is cut off by the second protection unit and, after then, when the present abnormal condition is no longer detected, the power supply cutoff condition is removed to thereby resume the power supply to the discharge lamp. Further, while the power supply to the discharge lamp is being cut off by the second protection unit, the operation of the first protection unit is prevented from cutting off the power supply to the discharge lamp and holding such power supply cutoff condition.
摘要翻译：一种放电灯点亮电路，其在接通放电灯时，由于暂时原因导致放电灯或本放电灯点亮电路发生异常状态时，可以恢复对放电灯的电源，目前暂时的异常情况导致消失。放电灯点亮电路包括用于控制放电灯的点亮的照明控制，用于检测在放电灯或放电灯点亮电路中发生的异常状况的异常状态检测器，以及接收来自异常的信号的保护电路从而停止对放电灯的电源。保护电路由第一保护单元和第二保护单元组成。当在放电灯或放电灯点亮电路中检测到永久性异常情况时，通过第一保护单元切断放电灯的电源，并且还保持电源的切断状态。此外，当在放电灯或放电灯点亮电路中检测到瞬态异常状态时，通过第二保护单元切断对放电灯的电源，然后，当不再检测到当前的异常状况时，去除电源切断条件，从而恢复对放电灯的供电。此外，当通过第二保护单元切断放电灯的电源时，防止第一保护单元的操作切断对放电灯的电源并保持该电源切断状态。

2. 发明授权

US6034490A Lighting circuit for discharge lamp 失效
标题翻译：放电灯照明电路
公开(公告)号：US6034490A
公开(公告)日：2000-03-07
申请号：US92965
申请日：1998-06-08
申请人： Masayasu Yamashita , Atsushi Toda , Hideaki Takeuchi
发明人： Masayasu Yamashita , Atsushi Toda , Hideaki Takeuchi
IPC分类号： H05B41/24 , H05B41/16 , H05B41/288 , H05B41/292 , H05B41/38 , G05F1/00
CPC分类号： H05B41/2925 , H05B41/2881 , H05B41/2885 , H05B41/388 , Y02B20/202 , Y02B20/208 , Y10S315/05 , Y10S315/07
摘要： A lighting circuit for a discharge lamp capable of improving the lighting performance of a discharge lamp with a simple circuit structure to thereby prevent a lighting failure at the end of the lifetime of the discharge lamp. The lighting circuit 1 comprises a DC power supply circuit 2, DC-AC conversion means 3 for converting a DC voltage output from the DC power supply circuit 2 to an AC voltage and supplying the AC voltage to the discharge lamp 5, a circuit element 6 (a switch element or a current limiting element) for blocking or limiting a current counter-flowing to the DC power supply circuit 2 from the DC-AC conversion means 3, and an inductive load 4 connected in series to the discharge lamp 5. A series circuit of a Zener diode 7 and a passive element 8 (a capacitor or a resistor) is provided in parallel to the circuit element 6, so that when the Zener diode 7 conducts, a rise in an auxiliary voltage for reignition is suppressed.
摘要翻译：一种用于放电灯的照明电路，其能够以简单的电路结构来改善放电灯的点亮性能，从而防止放电灯寿命结束时的点灯故障。照明电路1包括DC电源电路2，DC-AC变换单元3，将直流电源电路2输出的直流电压转换为交流电压，并将交流电压提供给放电灯5，电路单元6 （开关元件或限流元件），用于阻断或限制从DC-AC转换装置3逆流到DC电源电路2的电流，以及与放电灯5串联连接的电感负载4.A 齐纳二极管7和无源元件8（电容器或电阻器）的串联电路与电路元件6并联设置，使得当齐纳二极管7导通时，用于重新点火的辅助电压的上升被抑制。

3. 发明授权

US6034487A Lighting circuit for discharge lamp 失效
标题翻译：放电灯照明电路
公开(公告)号：US6034487A
公开(公告)日：2000-03-07
申请号：US140773
申请日：1998-08-26
申请人： Masayasu Yamashita , Atsushi Toda
发明人： Masayasu Yamashita , Atsushi Toda
IPC分类号： H05B41/282 , H05B41/18 , H05B41/288 , H05B41/38 , H05B37/00
CPC分类号： H05B41/382 , H05B41/2882 , Y10S315/05 , Y10S315/07
摘要： A lighting circuit for a discharge lamp comprises a DC power supply circuit having a coil and a capacitor at its input stage, a DC-AC converter for converting the output voltage of the DC power supply circuit to an AC voltage and supplying the AC voltage to a discharge lamp, ignition means for generating an ignition pulse to the discharge lamp, and control means for performing variable control on the output voltage of the DC power supply circuit 3. The control means 6 performs such a boosting operation as to boost the output voltage of the DC power supply circuit 3 to a predetermined voltage under a loadless condition while the ignition pulse generated by the ignition means 5 is supplied to the discharge lamp 11 to thereby light the discharge lamp 11. During the boosting operation, the ignition means 5 applies the ignition pulse to the discharge lamp 11, lighting the discharge lamp.
摘要翻译：一种用于放电灯的照明电路，包括在其输入级具有线圈和电容器的DC电源电路，用于将DC电源电路的输出电压转换为AC电压并将AC电压提供给放电灯，用于向放电灯产生点火脉冲的点火装置，以及用于对直流电源电路3的输出电压进行可变控制的控制装置。控制装置6进行升压操作以提高输出电压在点火装置5产生的点火脉冲被提供给放电灯11，从而点亮放电灯11.在升压操作期间，点火装置5应用于直流电源电路3，点火脉冲到放电灯11，照明放电灯。

4. 发明授权

US6002215A Lighting circuit for discharge lamp 失效
标题翻译：放电灯照明电路
公开(公告)号：US6002215A
公开(公告)日：1999-12-14
申请号：US79194
申请日：1998-05-15
申请人： Masayasu Yamashita , Atsushi Toda , Jun Yabuzaki
发明人： Masayasu Yamashita , Atsushi Toda , Jun Yabuzaki
IPC分类号： H05B41/282 , H05B41/16 , H05B41/18 , H05B41/285 , H05B41/292 , G05F1/00
CPC分类号： H05B41/2921 , H05B41/2851 , Y10S315/07
摘要： A lighting circuit for a discharge lamp which reliably detects short-circuiting of, or current leakage from, a discharge. A lighting circuit 1 has DC-AC conversion means 3 for converting a DC voltage from the DC power supply 2 to an AC voltage and supplying the AC voltage to the discharge lamp 9. The lighting circuit further comprises sampling means 4 for sampling a lamp voltage or a lamp current of the discharge lamp 9 in synchronism with a drive signal Sp sent to the DC-AC conversion means 3 to generate an AC wave, and abnormality determining means 5 for determining short-circuiting of, or current leakage from, the discharge lamp 9 based on a detection signal from the sampling means 4. When an abnormality is detected, power supply to the discharge lamp 9 is stopped.
摘要翻译：一种用于放电灯的照明电路，其可靠地检测放电的短路或电流泄漏。照明电路1具有用于将来自直流电源2的直流电压转换为交流电压的DC-AC转换装置3，并将AC电压提供给放电灯9.点亮电路还包括采样装置4，用于对灯电压进行采样或放电灯9的灯电流与发送到DC-AC转换装置3的驱动信号Sp同步以产生AC波，以及异常确定装置5，用于确定放电的短路或电流泄漏基于来自采样装置4的检测信号的灯9.当检测到异常时，停止向放电灯9供电。

5. 发明授权

US5939835A Discharge lamp lighting device with power system, control system and power source system 失效
标题翻译：放电灯照明装置具有电力系统，控制系统和电源系统
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。

6. 发明授权

US5486740A Lighting circuit for vehicular discharge lamp having DC/AC converter 失效
标题翻译：具有DC / AC转换器的车载放电灯的照明电路
公开(公告)号：US5486740A
公开(公告)日：1996-01-23
申请号：US346918
申请日：1994-11-23
申请人： Masayasu Yamashita , Atsushi Toda
发明人： Masayasu Yamashita , Atsushi Toda
IPC分类号： H05B41/282 , H05B41/00 , H05B41/18 , H05B41/24 , H05B41/288 , H05B41/38 , G05F1/00
CPC分类号： H05B41/388 , H05B41/2883 , H05B41/2888 , H05B41/382 , Y10S315/05 , Y10S315/07
摘要： A lighting circuit reduces the chance of shifting the generation timing for a start pulse with respect to the polarity of a rectangular wave. The lighting circuit has a start pulse generator which is designed to generate a start pulse only when the rectangular wave voltage obtained by a DC-AC converter has a certain polarity. A lighting discriminating circuit discriminates the ON status or OFF status of a discharge lamp. A lighting frequency controller is provided to alter the lighting frequency so that the frequency of the rectangular wave output from the DC-AC converter when the OFF status of the discharge lamp is discriminated becomes lower than the frequency of the rectangular wave output from the DC-AC converter when the ON status of the discharge lamp is discriminated.
摘要翻译：照明电路减少了相对于矩形波的极性使起始脉冲的产生定时偏移的机会。点亮电路具有启动脉冲发生器，其仅在DC-AC转换器获得的矩形波电压具有一定极性时被设计为产生起始脉冲。点亮鉴别电路鉴别放电灯的ON状态或OFF状态。提供了一种照明频率控制器来改变照明频率，使得当判断放电灯的OFF状态时从DC-AC转换器输出的矩形波的频率变得低于从DC-AC转换器输出的矩形波的频率，当判别放电灯的ON状态时，AC转换器。

7. 发明授权

US4926485A Output level control apparatus 失效
标题翻译：输出电平控制装置
公开(公告)号：US4926485A
公开(公告)日：1990-05-15
申请号：US293784
申请日：1989-01-05
申请人： Masayasu Yamashita
发明人： Masayasu Yamashita
IPC分类号： H03M1/70 , H03G1/00 , H03G3/20 , H03G7/00
CPC分类号： H03G1/0088 , H03G7/007
摘要： An output level control apparatus which operates according to a reproduced signal level from a digital recording apparatus. The output level control apparatus includes a signal level detection device which compares the level of the reproduced signal with a predetermined level to decide if a level of the reproduced signal should be changed. The output level control apparatus further includes a device which attenuates the level of the reproduced signal to a suitable level when the signal level detection device determines that the reproduced signal should be changed.
摘要翻译：输出电平控制装置，其根据来自数字记录装置的再现信号电平进行操作。输出电平控制装置包括信号电平检测装置，其将再现信号的电平与预定电平进行比较，以决定是否应该改变再现信号的电平。输出电平控制装置还包括当信号电平检测装置确定应该改变再现信号时将再现信号的电平衰减到适当电平的装置。

8. 发明授权

US06175190B1 Discharge-lamp lighting circuit 失效
标题翻译：放电灯点亮电路
公开(公告)号：US06175190B1
公开(公告)日：2001-01-16
申请号：US09521854
申请日：2000-03-09
申请人： Masayasu Yamashita , Hiroki Ishibashi
发明人： Masayasu Yamashita , Hiroki Ishibashi
IPC分类号： H05B3702
CPC分类号： H05B41/2921 , H05B41/2851 , H05B41/2926 , Y02B20/208
摘要： A discharge-lamp lighting circuit 1 has a DC-AC converter that incorporates a full bridge circuit consisting of a plurality of pairs of switching devices. The discharge-lamp lighting circuit incorporates an anomaly detector for detecting an anomalous state of the lighting circuit, and a current detector for detecting whether or not an electric current flows in the full bridge circuit in a state where the operation of the lighting circuit is stopped owing to detection of an anomalous state of the lighting circuit by the anomaly detector. The discharge-lamp lighting circuit also includes a device-stage determining unit structured such that when a current has been detected by the current detector, a pair of switching devices, of the switching devices connecting the full bridge circuit and disposed in the higher stage, are switched on. Another pair of the switching devices, disposed in the lower stage are switched off. The discharge-lamp lighting circuit thus prevents generation of a short circuit current owing to an anomalous state of a switching device of the plurality of pairs of switching devices.
摘要翻译：放电灯点亮电路1具有包含由多对开关器件组成的全桥电路的DC-AC转换器。放电灯点亮电路包括用于检测点亮电路的异常状态的异常检测器，以及用于检测在点灯电路的动作停止的状态下电流是否流入全桥电路的电流检测器由于异常检测器检测到点灯电路的异常状态。放电灯点亮电路还包括：器件级确定单元，其被构造成使得当电流检测器检测到电流时，连接全桥电路并置于更高级的开关器件的一对开关器件，被打开。设置在下级的另一对开关装置被切断。因此，放电灯点亮电路由于多对开关器件的开关器件的异常状态而防止产生短路电流。

9. 发明授权

US6153987A Lighting circuit for discharge lamp 失效
标题翻译：放电灯照明电路
公开(公告)号：US6153987A
公开(公告)日：2000-11-28
申请号：US864898
申请日：1997-05-29
申请人： Atsushi Toda , Masayasu Yamashita
发明人： Atsushi Toda , Masayasu Yamashita
IPC分类号： H05B41/24 , H05B41/282 , H05B41/288 , H05B41/38 , H05B37/00 , H05B41/00 , H05B41/231
CPC分类号： H05B41/386 , H05B41/2882
摘要： A discharge lamp lighting circuit comprising power control means for executing lighting acceleration control to supply power greater than rated power to a discharge lamp to thereby expedite lighting of the discharge lamp, and constant power control on the discharge lamp with the rated power; and timer means for regulating a time for the lighting acceleration control by the power control means in such a way that the lighting acceleration control does not continue for a predetermined time or longer, at the beginning of the lighting of the discharge lamp or when the status of the discharge lamp after being lit changes.
摘要翻译：一种放电灯点亮电路，包括用于执行照明加速控制以向放电灯提供大于额定功率的功率的功率控制装置，从而加速放电灯的点亮，并以额定功率对放电灯进行恒定功率控制; 以及定时器装置，用于调节由功率控制装置进行的照明加速控制的时间，使得在放电灯的点亮开始时照明加速控制不持续预定时间或更长时间，或者当状态放电灯点亮后发生变化。

10. 发明授权

US5973457A Lighting circuit for discharge lamp 失效
标题翻译：放电灯照明电路
公开(公告)号：US5973457A
公开(公告)日：1999-10-26
申请号：US78812
申请日：1998-05-14
申请人： Masayasu Yamashita , Atsushi Toda , Jun Yabuzaki
发明人： Masayasu Yamashita , Atsushi Toda , Jun Yabuzaki
IPC分类号： H05B41/282 , H05B37/03 , H05B41/16 , H05B41/18 , H05B41/292 , H05B37/00
CPC分类号： H05B37/03 , H05B41/2925 , Y02B20/208
摘要： A lighting circuit for a discharge lamp is designed in such a way that a detection time for the flicker state of a discharge lamp is not affected by the light-OFF time at the time the discharge lamp flickers without causing a significant increase in cost. This lighting circuit 1 for a discharge lamp comprises detection means 5 for detecting a flicker state of a discharge lamp 3; and abnormality determining means 6 for determining an abnormality in the discharge lamp 3 in accordance with a detection signal from the detection means 5 and implementing display to that effect, or stopping power supply to the discharge lamp 3, whereby when the detection signal from the detection means 5 indicates repetition of a state where a light-OFF time of the discharge lamp 3 is equal to or greater than a first set time and a light-ON time of the discharge lamp 3 is equal to or less than a second set time is repeated a predetermined period or longer, or a predetermined number of times or more, the abnormality determining means 6 determines the state as abnormal lighting of the discharge lamp 3.
摘要翻译：用于放电灯的点亮电路被设计成使得放电灯的闪烁状态的检测时间不受放电灯闪烁时的熄灭时间的影响而不会导致成本的显着增加。用于放电灯的该照明电路1包括用于检测放电灯3的闪烁状态的检测装置5; 以及异常确定装置6，用于根据来自检测装置5的检测信号确定放电灯3的异常并实现显示，或停止对放电灯3的供电，由此当检测到检测信号时装置5表示放电灯3的熄灭时间等于或大于第一设定时间并且放电灯3的点亮时间等于或小于第二设定时间的状态的重复重复预定时间段或更长时间或预定次数或更多次，异常确定装置6将该状态确定为放电灯3的异常点亮。

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