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. 发明公开

EP2244535A3 Discharge lamp lighting device and illumination fixture and projector using the same 失效转让
标题翻译：放电灯点亮装置和照明器具和投影仪，使
公开(公告)号：EP2244535A3
公开(公告)日：2016-12-21
申请号：EP09014687.9
申请日：2009-11-25
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： Katuyosi, Nakada , Tomoyuki, Nakano , Junichi, Hasegawa , Koji, Watanabe
IPC分类号： H05B41/04 , H05B41/288
CPC分类号： H05B41/2887 , H05B41/2883 , H05B41/382 , Y02B20/204
摘要： [Object] To provide a discharge lamp lighting device which can reduce size and costs while securing startability of a discharge lamp, and an illumination fixture and a projector using the discharge lamp lighting device. [Means for Settlement] A discharge lamp lighting device includes a polarity inverting circuit 12 for supplying a rectangular wave voltage to a discharge lamp La, a resonance circuit 2 for supplying a starting output voltage to the discharge lamp La, a voltage detecting circuit 3 for detecting an output voltage and a control circuit 4 for setting a frequency of a rectangular wave voltage based on a detection result of the voltage detecting circuit 3 so that the output voltage of the resonance circuit 2 exceeds a starting voltage of the discharge lamp La. The resonance circuit 2 includes a resonance inductor T20 formed of an auto transformer inserted between a first output end P1 of the polarity inverting circuit 12 and the discharge lamp La, and a resonance capacitor inserted between an intermediate tap nc of the resonance inductor T20 and a second output end P2 of the polarity inverting circuit 12. The voltage detecting circuit 3 is constituted so as to detect the output voltage based on a potential of the resonance capacitor C20.

2. 发明公开

EP3102006A1 DISCHARGE-LAMP DRIVING DEVICE, LIGHT SOURCE DEVICE, PROJECTOR, AND DISCHARGE-LAMP DRIVING METHOD 有权
标题翻译： ENTLADUNGSLAMPENANSTEUERUNGSVORRICHTUNG，LICHTQUELLENVORRICHTUNG，PROJEKTOR UND ENTLADUNGSLAMPENANSTEUERUNGSVERFAHREN
公开(公告)号：EP3102006A1
公开(公告)日：2016-12-07
申请号：EP16172869.6
申请日：2016-06-03
申请人： Seiko Epson Corporation
发明人： SATO, Shun , SUZUKI, Junichi , KITO, Satoshi
IPC分类号： H05B41/288
CPC分类号： H05B41/2887 , G03B21/006 , G03B21/2026 , G03B21/2053 , H01J61/025 , H01J61/073 , H01J61/545 , H04N9/3105 , H04N9/3197 , H05B41/2883 , H05B41/392
摘要： A discharge-lamp driving device according to one aspect of the invention includes a discharge-lamp driving section configured to supply a driving current to a discharge lamp including electrodes and a control section configured to control the discharge-lamp driving section. The control section is configured to control the discharge-lamp driving section such that a mixed period is provided in which a first period and a second period are alternately repeated, an alternating current having a first frequency being supplied to the discharge lamp in the first period and a direct current being supplied to the discharge lamp in the second period. The first frequency includes a plurality of frequencies different from one another. The control section is configured to temporally change the length of the first period.
摘要翻译：根据本发明的一个方面的放电灯驱动装置包括：放电灯驱动部，被配置为向包括电极的放电灯提供驱动电流;以及控制部，被配置为控制放电灯驱动部。控制部被配置为控制放电灯驱动部，使得提供在第一周期和第二周期中交替重复的混合周期，在第一周期中向放电灯提供具有第一频率的交流电并且在第二周期中将直流电流提供给放电灯。第一频率包括彼此不同的多个频率。控制部分被配置为在时间上改变第一周期的长度。

3. 发明公开

EP1843646A3 High pressure discharge lamp driving apparatus, luminaire and high pressure discharge lamp driving method 审中-公开
标题翻译：一种用于高压放电灯，照明装置及控制方法的高压放电灯的控制装置
公开(公告)号：EP1843646A3
公开(公告)日：2014-06-04
申请号：EP07014898.6
申请日：2001-07-25
申请人： Harison Toshiba Lighting Corporation
发明人： Yuda, Tokuji , Katoh, Junichi
IPC分类号： H05B41/292
CPC分类号： H05B41/2887 , H05B41/2928 , Y02B20/202 , Y02B20/208
摘要： Disclosed a high pressure discharge lamp driving apparatus for driving a high pressure discharge lamp during a stable operation thereof with an AC lamp current alternating for opposite half-cycle periods, the apparatus comprising an AC lamp current supply for supplying the AC lamp current to the high pressure discharge lamp, a detector for detecting the output AC lamp current to the high pressure discharge lamp, a controller responsive to the detector for controlling the AC supply to output the AC lamp current with a waveform which is characterized by that (i) a mean value in the second half of each half-cycle period is larger than the means value of the first half of each half-cycle period, (ii) no pulse current is contained in the second half of each half-cycle period, (iii) the AC lamp current has a maximum value immediately after polarity change between the positive and negative half-cycle periods, and (iv) the AC lamp current has also a waveform defined by that the ratio (d/a) of the maximum value (d) of the AC lamp current and a mean value (a) of the AC lamp current in its each half-cycle period satisfies a following equation. 1.05 ≦ d / a ≦ 1.80

4. 发明授权

EP1829434B1 HID BALLAST 无效
标题翻译： HID镇流器电路
公开(公告)号：EP1829434B1
公开(公告)日：2014-01-29
申请号：EP05818367.4
申请日：2005-12-02
申请人： Harvard Engineering PLC
发明人： SMETHURST, Christopher John
IPC分类号： H05B41/288
CPC分类号： H05B41/2882 , H05B41/2887 , Y02B20/202 , Y10T307/826
摘要： A method and apparatus are disclosed for providing current to a load. The apparatus includes a full or half bridge switching circuit, including at least one switching element for supplying power to a load when switched on and means for switching a state of the switching element only at a time when a substantially zero voltage is applied across the switching element.

5. 发明授权

EP2208402B1 VORSCHALTGERÄT FÜR EINE GASENTLADUNGSLAMPE, BSPW. EINE HID-LAMPE 有权转让
标题翻译：镇流器气体放电灯，BSPW。 HID灯
公开(公告)号：EP2208402B1
公开(公告)日：2013-06-26
申请号：EP08847779.9
申请日：2008-11-04
申请人： Tridonic GmbH & Co KG
发明人： PEREIRA, Eduardo , BRAUN, Markus , FINK, Jürgen , KNOEDGEN, Horst , KOLAR, Johann, W. , BIELA, Jürgen , GIEZENDANNER, Florian
IPC分类号： H05B41/288
CPC分类号： H05B41/2887 , Y02B20/202

6. 发明公开

EP2594117A1 ZÜNDSCHALTUNG FÜR EINE HOCHDRUCK-GASENTLADUNGSLAMPE 有权
标题翻译：点火开关高压气体放电灯
公开(公告)号：EP2594117A1
公开(公告)日：2013-05-22
申请号：EP11741419.3
申请日：2011-07-13
申请人： Tridonic AG
发明人： HUBER, Martin , BRAUN, Markus , KÜNG, Thomas
IPC分类号： H05B41/288
CPC分类号： H05B41/2887 , H05B41/2883 , Y02B20/202 , Y02B20/204
摘要： The present invention relates to a starting circuit for a high-pressure gas discharge lamp LA. Said starting circuit has a half-bridge, which is formed by two clocked switches S3 and S4 and generates an AC voltage from a DC voltage UG. The AC voltage is supplied to a series resonant circuit C1/L1a, with a transformation inductance L1b being magnetically coupled to the resonant inductance L1a of said series resonant circuit, but said transformation inductance otherwise being separately accessible. The lamp LA is in series between the resonant inductance L1a and the transformation inductance L1b. If the switches S3 and S4 are clocked at the resonant frequency, a high AC voltage is produced at the resonant inductance L1a by means of resonance magnification, said high AC voltage being transformed to the transformation inductance L1b in such a way that a total voltage suitable for starting is present at the electrodes of the lamp LA. The supply of the starting voltage to the electrodes is symmetrical, with the result that only half this voltage is apportioned to each electrode, in relation to a reference potential. As a result, there are fewer demands in respect of insulation complexity.

7. 发明公开

EP2273853A4 HIGH VOLTAGE DISCHARGE LAMP LIGHTING DEVICE AND LIGHT FIXTURE 审中-公开
标题翻译：由于高压放电灯照明装置
公开(公告)号：EP2273853A4
公开(公告)日：2012-07-04
申请号：EP09735745
申请日：2009-04-06
申请人： PANASONIC CORP
发明人： MATSUZAKI NOBUTOSHI , KAMOI TAKESHI , GORIKI TAKESHI , YAMAHARA DAISUKE
IPC分类号： H05B41/18 , H05B41/04 , H05B41/288
CPC分类号： H05B41/2887 , H05B41/042 , Y02B20/202

8. 发明授权

EP2285190B1 Driving method for discharge lamp, driving device for discharge lamp, light source device, and image display apparatus 有权
标题翻译：用于放电灯的光源装置和图像显示装置放电灯驱动装置的驱动方法
公开(公告)号：EP2285190B1
公开(公告)日：2011-11-23
申请号：EP10189568.8
申请日：2009-11-25
申请人： Seiko Epson Corporation
发明人： Terashima, Tetsuo , Soma, Shigeyasu , Yamauchi, Kentaro
IPC分类号： H05B41/292
CPC分类号： H05B41/2928 , H05B41/2887 , Y02B20/202

9. 发明公开

EP2244535A2 Discharge lamp lighting device and illumination fixture and projector using the same 失效转让
标题翻译：放电灯照明装置和照明装置以及使用该照明装置的投影仪
公开(公告)号：EP2244535A2
公开(公告)日：2010-10-27
申请号：EP09014687.9
申请日：2009-11-25
申请人： Panasonic Electric Works Co., Ltd.
发明人： Katuyosi, Nakada , Tomoyuki, Nakano , Junichi, Hasegawa , Koji, Watanabe
IPC分类号： H05B41/04
CPC分类号： H05B41/2887 , H05B41/2883 , H05B41/382 , Y02B20/204
摘要： [Summary]
[Object] To provide a discharge lamp lighting device which can reduce size and costs while securing startability of a discharge lamp, and an illumination fixture and a projector using the discharge lamp lighting device. [Means for Settlement] A discharge lamp lighting device includes a polarity inverting circuit 12 for supplying a rectangular wave voltage to a discharge lamp La, a resonance circuit 2 for supplying a starting output voltage to the discharge lamp La, a voltage detecting circuit 3 for detecting an output voltage and a control circuit 4 for setting a frequency of a rectangular wave voltage based on a detection result of the voltage detecting circuit 3 so that the output voltage of the resonance circuit 2 exceeds a starting voltage of the discharge lamp La. The resonance circuit 2 includes a resonance inductor T20 formed of an auto transformer inserted between a first output end P1 of the polarity inverting circuit 12 and the discharge lamp La, and a resonance capacitor inserted between an intermediate tap nc of the resonance inductor T20 and a second output end P2 of the polarity inverting circuit 12. The voltage detecting circuit 3 is constituted so as to detect the output voltage based on a potential of the resonance capacitor C20.
摘要翻译：发明内容本发明的目的在于提供一种放电灯点亮装置以及使用该放电灯点亮装置的照明器具和投影仪，其能够确保放电灯的启动性并且能够实现小型化和低成本化。 [解决手段]放电灯点灯装置具备：向放电灯La供给矩形波电压的极性反转电路12;向放电灯La供给起动输出电压的谐振电路2;电压检测电路3，检测输出电压;以及控制电路4，根据电压检测电路3的检测结果来设定矩形波电压的频率，以使谐振电路2的输出电压超过放电灯La的开始电压。谐振电路2包括由插入在极性反转电路12的第一输出端P1和放电灯La之间的自动变压器形成的谐振电感器T20和插入在谐振电感器T20的中间抽头nc与第二谐振电路输出端P2。电压检测电路3构成为基于检测输出电压在谐振电容器C20的电势上。

10. 发明公开

EP2141966A1 ILLUMINATION LAMP IGNITION DEVICE AND LIGHTING DEVICE 有权
标题翻译：苏黎世大学学士学位课程BELEUCHTUNGSVORRICHTUNG
公开(公告)号：EP2141966A1
公开(公告)日：2010-01-06
申请号：EP08740514.8
申请日：2008-04-16
申请人： Panasonic Electric Works Co., Ltd
发明人： GORIKI, Takeshi , YUFUKU, Akira
IPC分类号： H05B41/24 , H02M3/155 , H02M7/48
CPC分类号： H05B41/2886 , H02M1/36 , H02M2001/007 , H05B39/045 , H05B41/2887 , H05B41/36
摘要： A lamp ballast capable of lighting a discharge lamp and an incandescent lamp each at an optimum condition. The lamp ballast has a DC-DC converter, an inverter that converts an output of DC-DC converter into an AC power for applying the same to a lamp load, a starting circuit generating a high voltage pulse from the AC power to provide the same to the lamp load, and a controller that controls the DC-DC converter and the inverter to provide a variable DC voltage and the AC power of variable frequency. The controller has a starting mode of operating the inverter at a starting frequency to generate the high voltage, and a lighting mode of operating the inverter at a lighting frequency lower than the starting frequency. The controller has a detection mode of causing the DC-DC converter to output a detection voltage of a predetermined level prior to the starting mode, a discharge lamp lighting program of operating, after the detection mode, the inverter in the starting mode and subsequently in the lighting mode, and an incandescent lamp lighting program of operating, after the detection mode, the inverter in the lighting mode without through the starting mode. When the detection voltage exceeds a predetermined threshold, the controller selects the discharge lamp lighting program, and otherwise selects the incandescent lamp lighting program. When the incandescent lamp is connected, the ballast turns on the incandescent lamp without applying a high voltage pulse so as to avoid lowering of the lamp life.
摘要翻译：一种灯泡镇流器，其能够在最佳状态下点燃放电灯和白炽灯。灯镇流器具有DC-DC转换器，将DC-DC转换器的输出转换成用于将其施加到灯负载的AC电力的逆变器，从AC电力产生高电压脉冲以提供相同电压的起动电路以及控制DC-DC转换器和逆变器提供可变直流电压和可变频率的交流电力的控制器。控制器具有以起始频率操作逆变器以产生高电压的启动模式，以及以比起始频率低的点亮频率操作逆变器的点亮模式。控制器具有使DC-DC转换器在启动模式之前输出预定电平的检测电压的检测模式，在检测模式之后将起动模式下的逆变器运行的放电灯点亮程序，随后在照明模式和白炽灯照明程序，在检测模式之后，变频器处于照明模式，无需通过启动模式。当检测电压超过预定阈值时，控制器选择放电灯点亮程序，否则选择白炽灯照明程序。当连接白炽灯时，镇流器会在不施加高电压脉冲的情况下打开白炽灯，以避免灯泡寿命的降低。

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