公开(公告)号：US09939717B2

公开(公告)日：2018-04-10

申请号：US15387283

申请日：2016-12-21

申请人： SEIKO EPSON CORPORATION

发明人： Tomoya Mizutani ,  Takaaki Ozawa

IPC分类号： G03B21/16 ,  G03B21/20 ,  H04N9/31 ,  H05B41/292 ,  G03B21/00 ,  G03B33/12 ,  H05B41/288

CPC分类号： G03B21/16 ,  G03B21/006 ,  G03B21/2026 ,  G03B21/2046 ,  G03B21/2053 ,  G03B21/2066 ,  G03B33/12 ,  H04N9/3155 ,  H05B41/2885 ,  H05B41/2887 ,  H05B41/292 ,  Y02B20/202

摘要： A projector which configured to project a horizontally long image and a vertically long image, includes a cooling unit configured to cool a discharge lamp according to an installation attitude of the projector, a detection unit configured to detect the installation attitude, and a controller configured to control a discharge lamp driving unit and the cooling unit, in which the installation attitude includes a first attitude for projecting the horizontally long image and a second attitude for projecting the vertically long image, and in which the controller is configured to put out the discharge lamp in a case where the installation attitude detected by the detection unit is a third attitude which is different from both of the first attitude and the second attitude.

公开(公告)号：US20140354175A1

公开(公告)日：2014-12-04

申请号：US14344723

申请日：2012-08-04

申请人： Masashi Iida ,  Akiyoshi Maehara ,  Makoto Ohkahara

发明人： Masashi Iida ,  Akiyoshi Maehara ,  Makoto Ohkahara

IPC分类号： H05B41/24

CPC分类号： H05B41/24 ,  H01J61/827 ,  H01J61/92 ,  H05B41/042 ,  H05B41/2885 ,  H05B41/2928 ,  Y02B20/202

摘要： A high watt type ceramic metal halide lamp illumination device is provided. The device comprises: ballast receiving a primary input voltage and outputting a secondary voltage, and a lamp having a plurality of arc tubes electrically connected in series inside an outer bulb. The lamp is lighted by receiving the secondary voltage output from the ballast. The secondary voltage output from the ballast has a waveform that at least satisfies a maximum-value to effective-value ratio (Vmax/Veff) of greater than 20.5. When using two 360 W arc tubes of a popular type by electrically connecting the two in series instead of a 700 W arc tube of a high-watt type, for example, it is preferable to use a triangular waveform AC voltage that satisfies 260≦Veff(triangular waveform) when expressed by the effective-value, and 500 V≦Vmax(triangular waveform) when expressed by the maximum-value.

摘要翻译： 提供高瓦特型陶瓷金属卤化物灯照明装置。 该装置包括：镇流器接收初级输入电压并输出次级电压;以及灯，其具有串联连接在外灯泡内的多个电弧管。 通过接收从镇流器输出的二次电压来点亮灯。 从镇流器输出的次级电压具有至少满足最大值至有效值比（Vmax / Veff）大于20.5的波形。 例如，当使用两个串联的两个360W的电弧管，而不是例如高瓦特的700瓦的电弧管时，通常使用两个串联的电弧管，而不是使用满足260＆nlE的三角波形AC电压; Veff （三角波形），当由最大值表示时，由有效值表示500 V＆nlE; Vmax（三角波形）。

公开(公告)号：US20130063037A1

公开(公告)日：2013-03-14

申请号：US13229221

申请日：2011-09-09

申请人： Chun-An Cheng ,  Chen-Wei Ku

发明人： Chun-An Cheng ,  Chen-Wei Ku

IPC分类号： H05B41/36

CPC分类号： H05B41/2885 ,  Y02B20/202

摘要： An electronic ballast includes a power factor corrector having an input side for receiving an AC input voltage from a voltage source, and including first and second power switches connected in series across an output side. Each of the first and second power switches is operable based on a corresponding one of a first and second control signals in one of an ON-state and an OFF-state. The power factor corrector is operable to output at the output side a boosted DC voltage output corresponding to the AC input voltage in response to operation of the first and second power switches. A buck circuit receives the boosted DC voltage output from the power factor, and is operable based on the boosted DC voltage output to output an AC voltage output in the form of an AC square wave signal to a high intensity discharge lamp.

摘要翻译： 电子镇流器包括功率因数校正器，其具有用于从电压源接收AC输入电压的输入侧，并且包括串联连接在输出侧的第一和第二功率开关。 第一和第二电源开关中的每一个基于在ON状态和OFF状态之一中的第一和第二控制信号中的对应的一个操作。 功率因数校正器可操作以响应于第一和第二功率开关的操作而在输出侧输出对应于AC输入电压的升压DC电压输出。 降压电路接收从功率因数输出的升压直流电压，并且可以基于升压的直流电压输出进行操作，以将交流电压输出形式的AC方波信号输出到高强度放电灯。

公开(公告)号：US08164280B2

公开(公告)日：2012-04-24

申请号：US12588639

申请日：2009-10-22

申请人： Hyun Joo Park ,  Woo Sung Choi

发明人： Hyun Joo Park ,  Woo Sung Choi

IPC分类号： H05B37/02

CPC分类号： H05B41/2885 ,  H05B41/42 ,  Y02B20/202

摘要： Provided is an electronic ballast including: a rectifier which rectifies alternating current (AC) power into direct current (DC) power; a power factor compensator which improves a power face of the DC power; an inverter which inverts the DC current into high frequency square wave power; and a resonant circuit which receives the high frequency square wave power from the inverter, adjusts impedance, transforms the high frequency square wave power into high frequency sine wave power, and outputs the high frequency sine wave power.

摘要翻译： 提供一种电子镇流器，包括：将交流（AC）功率整流为直流（DC）功率的整流器; 功率因数补偿器，其改善DC功率的功率面; 将直流电流转换为高频方波功率的逆变器; 以及从逆变器接收高频方波功率的谐振电路，调整阻抗，将高频方波功率变换为高频正弦波功率，并输出高频正弦波功率。

公开(公告)号：US08058811B2

公开(公告)日：2011-11-15

申请号：US12056088

申请日：2008-03-26

申请人： Peter Green

发明人： Peter Green

IPC分类号： H05B37/02

CPC分类号： H05B41/2885 ,  Y10S315/07

摘要： A ballast circuit operable to drive a high intensity discharge lamp in accordance with an embodiment of the present applications includes an energy conversion circuit operable to convert an input voltage into a bus voltage and to provide the bus voltage to a DC bus, a first half bridge connected across the DC bus and operable to control an output voltage supplied to the lamp, a control circuit operable to control the half bridge such that a desired output voltage is provided to the lamp, a series inductor connected in series between the half bridge and the lamp; and a parallel capacitor resistor connected across the lamp. The control circuit operates the half bridge at a high frequency for a set period of time such that a high voltage is built up across the parallel resistor, and then reduces the frequency of the half bridge until it approaches a resonance frequency which ignites the lamp.

摘要翻译： 根据本申请的实施例，可操作以驱动高强度放电灯的镇流器电路包括能量转换电路，其可操作以将输入电压转换为总线电压并将总线电压提供给DC总线，第一半桥 连接在DC总线上并可操作以控制提供给灯的输出电压;控制电路，可操作以控制半桥，使得向灯提供期望的输出电压;串联电感器串联连接在半桥和 灯; 并且在灯之间连接并联电容器电阻器。 控制电路在高频下操作半桥，持续一段时间，使得跨并联电阻器建立高电压，然后降低半桥的频率，直到其接近点燃灯的谐振频率。

公开(公告)号：US20110273097A1

公开(公告)日：2011-11-10

申请号：US12775461

申请日：2010-05-06

申请人： CHIEN-CHIH KUO

发明人： CHIEN-CHIH KUO

IPC分类号： H05B37/02

CPC分类号： H05B41/2885 ,  Y02B20/202

摘要： A lamp control system includes at least one lamp structure; comprising: a lamp body; a ballast connected to the lamp body; the ballast including: a first stage for converting AC current into DC current and boosting of voltage; a buck DC-DC converter; a transistor of the buck DC-DC converter having an input end; a PWM controller being installed between an output end of the lamp body and the input end of the transistor; a frequency controllable oscillator being connected to the PWM controller and an oscillation controlling processor being connected to the frequency controller oscillator for generating instructions to change the oscillation frequency of the oscillator and thus to adjust the modulation frequency of the PWM controller; sensors about voltages, currents, and illuminations are installed for light strength control, temperature control, auto-turning on and off of the HID lamp, power control and time and illumination control.

摘要翻译： 灯控制系统包括至少一个灯结构; 包括：灯体; 连接到灯体的镇流器; 该镇流器包括：将交流电流转换为直流电流和升压电压的第一阶段; 降压DC-DC转换器; 具有输入端的降压DC-DC转换器的晶体管; PWM控制器安装在灯体的输出端和晶体管的输入端之间; 连接到PWM控制器的频率可控振荡器和连接到频率控制器振荡器的振荡控制处理器，用于产生改变振荡器的振荡频率的指令，从而调节PWM控制器的调制频率; 关于电压，电流和照明的传感器被安装用于光强度控制，温度控制，HID灯的自动打开和关闭，功率控制和时间和照明控制。

公开(公告)号：US08044334B2

公开(公告)日：2011-10-25

申请号：US12624901

申请日：2009-11-24

申请人： Teppei Kagata ,  Tetsu Okamoto ,  Tetsuji Hirao

发明人： Teppei Kagata ,  Tetsu Okamoto ,  Tetsuji Hirao

IPC分类号： G01J1/32

CPC分类号： G03B21/2026 ,  G03B21/2053 ,  H05B41/2885 ,  H05B41/2886 ,  H05B41/2928 ,  Y02B20/202 ,  Y02B20/208

摘要： To stabilize the arc bright point position of a discharge lamp and suppress deformation of an electrode when an ultrahigh-pressure discharge lamp is operated with extremely low electric power, the lamp is operated by supplying power from a power supply device having a step-down chopper circuit and a full bridge circuit, a rectangular wave alternating current being supplied when it is operated with rated power or dimmed power (about 60 to 80% of rated power), a DC current being supplied during standby power operation of at most 0.5×P (W) with respect to the maximum operating power P (W). Moreover, the high-pressure discharge lamp light source device may be mounted on a projector for projecting images and the mode being changed to standby power operation when there is no change in an image signal, for example, for a prescribed period of time.

摘要翻译： 为了稳定放电灯的电弧亮点位置，并且当以超低功率运行超高压放电灯时，抑制电极的变形，通过从具有降压斩波器的电源装置供电来对灯进行动作 电路和全桥电路，当以额定功率或调光功率（约为额定功率的约60％至80％）运行时提供矩形波交流电，在待机功率运行期间提供至多0.5×P的直流电流 （W）相对于最大工作功率P（W）。 此外，高压放电灯光源装置可以安装在用于投影图像的投影仪上，并且当图像信号没有变化例如规定的时间段时，该模式被改变为待机功率操作。

公开(公告)号：US07943890B2

公开(公告)日：2011-05-17

申请号：US12096088

申请日：2006-12-21

申请人： Hirofumi Konishi ,  Jyunichi Uekariya

发明人： Hirofumi Konishi ,  Jyunichi Uekariya

IPC分类号： G01J1/32 ,  H03K17/78 ,  G03B21/20

CPC分类号： H05B41/2882 ,  G03B21/2026 ,  H02M3/157 ,  H05B41/2885 ,  Y02B20/202

摘要： An output of a load voltage detector is read by an A/D converter, and a reference value Is and a switching frequency are decided by a microcomputer. In order that the decided switching frequency can be achieved, a SET signal is inputted from a switching frequency counting unit to a drive controller, and a switching element is turned on. When a current flowing through the switching element, which is detected by a resistor, exceeds the reference value Is of a reference arithmetic unit, a RESET signal is inputted from a current detector to the drive controller, and the switching element is turned off. Thereafter, the reference value Is and the switching frequency are set so that the switching element can be turned on at the next time at timing when a regenerative current of a diode turns to substantial zero. As described above, the switching frequency is controlled in response to a state of a discharge lamp while controlling the switching element to turn on at the timing when the regenerative current turns to substantial zero without bringing up a cost increase of a discharge lamp lighting device.

摘要翻译： 负载电压检测器的输出由A / D转换器读取，基准值Is和开关频率由微型计算机决定。 为了可以实现确定的开关频率，将SET信号从开关频率计数单元输入到驱动控制器，并且开关元件导通。 当通过电阻器检测到的开关元件的电流超过参考运算单元的基准值Is时，从电流检测器向驱动控制器输入RESET信号，并切换开关元件。 此后，设定基准值Is和开关频率，使得开关元件可以在二极管的再生电流变为大致零的定时下一次接通。 如上所述，在不增加放电灯点亮装置的成本增加的同时，在再生电流变为大致零的时刻，控制开关元件导通的同时，响应于放电灯的状态来控制开关频率。

公开(公告)号：US20100103388A1

公开(公告)日：2010-04-29

申请号：US12504137

申请日：2009-07-16

申请人： Kentaro YAMAUCHI ,  Tetsuo TERASHIMA

发明人： Kentaro YAMAUCHI ,  Tetsuo TERASHIMA

IPC分类号： H05B41/26 ,  G03B21/00

CPC分类号： H05B41/2928 ,  G03B21/005 ,  H05B41/2885

摘要： A discharge lamp lighting device includes: a power control circuit adapted to generate discharge lamp driving power; an alternating current conversion circuit adapted to execute polarity reversal on a direct current output from the power control circuit, thereby generating an alternating current; and a control section adapted to perform alternating current conversion control of controlling the polarity reversal timing of the alternating current, wherein the control section executes a steady drive process of executing the alternating current conversion control at a given frequency, a first low frequency drive process of executing the alternating current conversion control at a first low frequency driving frequency lower than the given frequency, and starting from a first polarity and ending with the first polarity, and a second low frequency drive process of executing the alternating current conversion control at a second low frequency driving frequency lower than the given frequency, and starting from a second polarity and ending with the second polarity.

摘要翻译： 放电灯点亮装置包括：功率控制电路，适于产生放电灯驱动电力; 交流电转换电路，用于对从功率控制电路输出的直流电进行极性反转，从而产生交流电; 以及控制部，其适于执行控制所述交流电的极性反转定时的交流转换控制，其中，所述控制部执行以给定频率执行所述交流电转换控制的稳定驱动处理，所述第一低频驱动处理 在低于给定频率的第一低频驱动频率下执行交流转换控制，并从第一极性开始并以第一极性结束;以及第二低频驱动处理，以第二低电平执行交流电转换控制 频率驱动频率低于给定频率，并从第二极性开始并以第二极性结束。

公开(公告)号：US20090153071A1

公开(公告)日：2009-06-18

申请号：US11989303

申请日：2006-07-27

申请人： Martin Honsberg-Riedl ,  Burkhard Ulrich ,  Alwin Veser

发明人： Martin Honsberg-Riedl ,  Burkhard Ulrich ,  Alwin Veser

IPC分类号： H05B41/02

CPC分类号： A61K31/00 ,  A61K31/19 ,  A61K31/20 ,  A61K31/28 ,  H05B41/042 ,  H05B41/2881 ,  H05B41/2882 ,  H05B41/2885 ,  Y02B20/202

摘要： The invention specifies a starting circuit arrangement for starting at least one discharge lamp by applying an electrical starting voltage pulse to the discharge lamp, the starting circuit arrangement having the following features: at least one source circuit arrangement for providing an electrical primary voltage pulse, at least one starting circuit for providing the starting voltage pulse, and at least one inductive coupling element for inductively coupling-in the primary voltage pulse into the starting circuit for the purpose of generating the starting voltage pulse. The starting circuit arrangement is characterized by the fact that the inductive coupling element has a transformation ratio for a voltage transformation which is selected from the range of from 1/25 to 1/400. In addition, the invention also specifies a method for starting a discharge lamp by applying a starting voltage pulse using the starting circuit arrangement as claimed in one of the preceding claims, having the following method steps: a) forming a starting resonant circuit with a discharge lamp connected in parallel, and b) generating the starting voltage pulse in the starting resonant circuit. In particular, the starting circuit arrangement is used for starting VIP lamps, it being possible for the VIP lamps also to be started again in the hot state during operation at temperatures of from 500° C. to 1000° C.

摘要翻译： 本发明规定了用于通过向放电灯施加电启动电压脉冲来启动至少一个放电灯的启动电路装置，该起动电路装置具有以下特征：用于提供电初级电压脉冲的至少一个源电路装置 用于提供起动电压脉冲的至少一个起动电路和用于将初级电压脉冲感应耦合到起动电路中的至少一个感应耦合元件，用于产生起始电压脉冲。 起动电路装置的特征在于，电感耦合元件具有从1/25至1/400的范围内的电压变换的变换比。 另外，本发明还规定了通过使用如前述权利要求中任一项所述的起动电路装置施加起动电压脉冲来启动放电灯的方法，具有以下方法步骤：a）形成具有放电的起振谐振电路 灯并联连接，b）在启动谐振电路中产生启动电压脉冲。 特别地，启动电路装置用于启动VIP灯，在500℃至1000℃的温度下操作期间，VIP灯也可以在热状态下再次启动。