HIGH PRESSURE DISCHARGE LAMP LIGHTING APPARATUS
    1.
    发明申请
    HIGH PRESSURE DISCHARGE LAMP LIGHTING APPARATUS 有权
    高压放电灯照明设备

    公开(公告)号:US20140167641A1

    公开(公告)日:2014-06-19

    申请号:US14236463

    申请日:2012-07-10

    IPC分类号: H05B41/24

    摘要: In a lighting apparatus containing a high pressure discharge lamp, an alternating current supplied to the discharge lamp at the time of steady lighting of the frequency (basic frequency) selected from a range between 60 and 1000 Hz and a low frequency having a frequency selected from a range between 5 and 200 Hz lower than the basic frequency is generated alternately. The frequency of the low frequency wave is changed in response to the change of the lighting voltage of the discharge lamp. The supply period of the basic frequency is increased and decreased little by little by every predetermined time.

    摘要翻译: 在包含高压放电灯的照明装置中,在从60Hz和1000Hz之间的频率选择的频率(基本频率)的稳定点亮时提供给放电灯的交流电流和频率选自 交替地产生比基本频率低5〜200Hz的范围。 响应于放电灯的点亮电压的变化,低频波的频率发生变化。 基本频率的供给周期每隔预定时间逐渐增加和减少。

    High pressure discharge lamp lighting apparatus
    2.
    发明授权
    High pressure discharge lamp lighting apparatus 有权
    高压放电灯照明装置

    公开(公告)号:US08952633B2

    公开(公告)日:2015-02-10

    申请号:US14236463

    申请日:2012-07-10

    摘要: In a lighting apparatus containing a high pressure discharge lamp, an alternating current supplied to the discharge lamp at the time of steady lighting of the frequency (basic frequency) selected from a range between 60 and 1000 Hz and a low frequency having a frequency selected from a range between 5 and 200 Hz lower than the basic frequency is generated alternately. The frequency of the low frequency wave is changed in response to the change of the lighting voltage of the discharge lamp. The supply period of the basic frequency is increased and decreased little by little by every predetermined time.

    摘要翻译: 在包含高压放电灯的照明装置中,在从60Hz和1000Hz之间的频率选择的频率(基本频率)的稳定点亮时提供给放电灯的交流电流和频率选自 交替地产生比基本频率低5〜200Hz的范围。 响应于放电灯的点亮电压的变化,低频波的频率发生变化。 基本频率的供给周期每隔预定时间逐渐增加和减少。

    High pressure discharge lamp lighting device with electrode temperature control
    3.
    发明授权
    High pressure discharge lamp lighting device with electrode temperature control 有权
    高压放电灯点亮装置,电极温度控制

    公开(公告)号:US09030111B2

    公开(公告)日:2015-05-12

    申请号:US13580525

    申请日:2011-03-09

    摘要: To maintain the shape of the projection on the electrodes of the tip end for a long time to extend the lifetime of a discharge lamp, a lighting device lighting a high pressure discharge lamp supplies alternating current such that an alternating current with a basic frequency at the time of the steady state lighting selected from a range between 60 and 1000 Hz and a low frequency of a half cycle with a frequency lower than the basic frequency are generated alternatingly. The alternating current is supplied such that the waveform with one polarity of the low frequency appears consecutively at least twice. It is also possible for the alternately generated low frequency to be lower than the basic frequency in a range from 5 to 200 Hz, and for the interval during which the basic frequency is supplied to be gradually increased and decreased at specified times.

    摘要翻译: 为了长时间地保持尖端的电极上的突起的形状以延长放电灯的寿命,点燃高压放电灯的照明装置提供交流电流,使得在 交替地产生从60Hz到1000Hz之间的频率和频率低于基本频率的低频半周期的稳态照明时间。 提供交流电流使得具有低频一极性的波形连续出现至少两次。 交替产生的低频也可以在5〜200Hz的范围内低于基本频率,在规定时间内提供基本频率的间隔逐渐增减。

    HIGH PRESSURE DISCHARGE LAMP LIGHTING DEVICE
    4.
    发明申请
    HIGH PRESSURE DISCHARGE LAMP LIGHTING DEVICE 有权
    高压放电灯照明装置

    公开(公告)号:US20120313546A1

    公开(公告)日:2012-12-13

    申请号:US13580525

    申请日:2011-03-09

    IPC分类号: H05B41/36

    摘要: To maintain the shape of the projection on the electrodes of the tip end for a long time to extend the lifetime of a discharge lamp, a lighting device lighting a high pressure discharge lamp supplies alternating current such that an alternating current with a basic frequency at the time of the steady state lighting selected from a range between 60 and 1000 Hz and a low frequency of a half cycle with a frequency lower than the basic frequency are generated alternatingly. The alternating current is supplied such that the waveform with one polarity of the low frequency appears consecutively at least twice. It is also possible for the alternately generated low frequency to be lower than the basic frequency in a range from 5 to 200 Hz, and for the interval during which the basic frequency is supplied to be gradually increased and decreased at specified times.

    摘要翻译: 为了长时间地保持尖端的电极上的突起的形状以延长放电灯的寿命,点燃高压放电灯的照明装置提供交流电流,使得在 交替地产生从60Hz到1000Hz之间的频率和频率低于基本频率的低频半周期的稳态照明时间。 提供交流电流使得具有低频一极性的波形连续出现至少两次。 交替产生的低频也可以在5〜200Hz的范围内低于基本频率,在规定时间内提供基本频率的间隔逐渐增减。

    Discharge lamp lighting apparatus
    5.
    发明申请
    Discharge lamp lighting apparatus 有权
    放电灯照明装置

    公开(公告)号:US20110018460A1

    公开(公告)日:2011-01-27

    申请号:US12805339

    申请日:2010-07-27

    IPC分类号: H05B41/36

    摘要: In an optimum frequency detection sequence of a discharge lamp, the frequency control circuit performs a sweep operation in which, while the frequency control circuit monitors a syntonization degree signal, a frequency control signal is changed, so that frequency is changed, starting from either an upper or lower limit frequency of a periodic driving circuit, in a range that does not exceed the other frequency, wherein after completion of the sweep operation, the frequency control circuit determines a value of the frequency control signal corresponding to a resonance frequency of the resonant circuit, and inputs the value into a frequency driving circuit, wherein at least in a period of the sweep operation, an inverter receives power supply from a sweep time power supply circuit for supplying electric power with constant supply capability, which is limited to a range in which breakdown does not occur in the discharge lamp.

    摘要翻译: 在放电灯的最佳频率检测顺序中,频率控制电路进行扫频动作,其中,在频率控制电路监视合成度信号的同时,频率控制信号发生变化,频率发生变化,从 在不超过其他频率的范围内的周期性驱动电路的上限或下限频率,其中在扫描操作完成之后,频率控制电路确定对应于谐振的谐振频率的频率控制信号的值 电路,并将该值输入到频率驱动电路中,其中至少在扫描操作期间,逆变器从扫频时间电源电路接收供电电力,用于提供具有恒定供电能力的电力,该功率限制在一定范围内 在放电灯中不发生击穿。

    Discharge lamp lighting apparatus and projector
    6.
    发明申请
    Discharge lamp lighting apparatus and projector 有权
    放电灯照明设备和投影机

    公开(公告)号:US20080137041A1

    公开(公告)日:2008-06-12

    申请号:US11987701

    申请日:2007-12-04

    IPC分类号: G03B21/14 H05B39/04

    摘要: A discharge lamp lighting apparatus for lighting a discharge lamp, comprises an inverter which reverses a polarity of an output voltage and applies alternating voltage to the discharge lamp, and an inverter control circuit which generates an inverter control signal defining a polarity reversal operation of the inverter, based on a polarity reversal timing signal, wherein when the number of polarity reversals in one cycle of the polarity reversal timing signal is even, the inverter control circuit intermittently performs a first operation in which successive pulse-like part of the polarity reversal operation based on the polarity reversal timing signal is disregarded by odd number of times.

    摘要翻译: 一种用于点燃放电灯的放电灯点亮装置,包括:反相器,其将输出电压的极性反转并向放电灯施加交流电压;以及逆变器控制电路,其产生限定逆变器的极性反转操作的逆变器控制信号 基于极性反转定时信号,其中当极性反转定时信号的一个周期中的极性反转的数量为偶数时,逆变器控制电路间歇地执行第一操作,其中基于极性反转操作的连续脉冲状部分基于 极性反转定时信号被忽略奇数次。

    DC—DC converter and device for operation of a high pressure discharge lamp using said converter
    7.
    发明授权
    DC—DC converter and device for operation of a high pressure discharge lamp using said converter 失效
    DC-DC转换器和使用所述转换器操作高压放电灯的装置

    公开(公告)号:US07078868B2

    公开(公告)日:2006-07-18

    申请号:US10891024

    申请日:2004-07-15

    IPC分类号: H05B37/02

    摘要: A low cost DC—DC converter which facilitates a reduction of the switching loss in a wide, variable range of the continuity ratio of the main switching device includes a direct current source; an ON-OFF-controllable main switching device; a main coil which is series connected to the main switching device; a fly-wheel diode which is arranged such that the induction current of the above described main coil flows when the main switching device is shifted into the OFF state; a smoothing capacitor for smoothing the output of the main coil; an auxiliary coil, a resonant capacitor and an ON-OFF-controllable auxiliary switching device. The main switching device and the auxiliary switching device are controlled such that each are alternatively shifted into the ON state such that the main switching device is shifted into the ON state within a given time after the auxiliary switching device has been shifted into the OFF state.

    摘要翻译: 有利于在主开关装置的连续性比的宽的可变范围内的开关损耗的降低的低成本DC-DC转换器包括直流电源; 开关控制主开关装置; 串联连接到主开关装置的主线圈; 一个飞轮二极管,其布置成使得当主开关装置转换到断开状态时,上述主线圈的感应电流流动; 平滑电容器,用于平滑主线圈的输出; 辅助线圈,谐振电容器和ON-OFF可控辅助开关装置。 控制主开关装置和辅助开关装置,使得各个交替切换到接通状态,使得主辅助开关装置在辅助开关装置已经被切换到关闭状态之后的给定时间内移动到接通状态。

    Discharge lamp lighting apparatus
    8.
    发明授权
    Discharge lamp lighting apparatus 有权
    放电灯照明装置

    公开(公告)号:US09137881B2

    公开(公告)日:2015-09-15

    申请号:US13994352

    申请日:2011-11-01

    摘要: A discharge lamp lighting device having a discharge lamp which has a pair of tungsten-made electrodes each having a protrusion formed at the tip thereof and an electric power feeding device which feeds an alternate current electric power to the discharge lamp, and is characterized in that the power feeding device has a function of switching between a first lighting mode in which a rated electric power is fed to the discharge lamp and a second lighting mode in which a lower electric power than the rated electric power is fed to the discharge lamp to light the discharge lamp, and therefore, can control electric power to be fed to the discharge lamp under such conditions that the average electric power change rate becomes 0.01-2.1 W/s during a mode switching period in which the switching from the first lighting mode into the second lighting mode is carried out.

    摘要翻译: 一种放电灯点灯装置,具有放电灯,该放电灯具有一对在其顶端形成有突起的钨制电极和向该放电灯供给交流电力的供电装置,其特征在于, 所述供电装置具有在向所述放电灯供给额定电力的第一照明模式与所述放电灯供给到所述放电灯的低功率的第二照明模式之间进行切换的功能 放电灯,因此能够在将从第一照明模式切换到第一照明模式的模式切换期间的平均电力变化率为0.01〜2.1W / s的条件下,控制供给到放电灯的电力 执行第二照明模式。

    Discharge lamp light apparatus
    9.
    发明授权
    Discharge lamp light apparatus 有权
    放电灯灯具

    公开(公告)号:US08358079B2

    公开(公告)日:2013-01-22

    申请号:US12926621

    申请日:2010-11-30

    IPC分类号: H05B39/02 G05F1/00

    CPC分类号: H05B41/2886 H05B41/2925

    摘要: A discharge lamp lighting apparatus for lighting a discharge lamp where a voltage generated in a secondary side winding can be superimposed on an output voltage of an inverter and is impressed between electrodes, where while a periodic drive circuit generates an inverter drive signal so that frequency of the inverter becomes a start-up initial frequency, electric supply control circuit controls a power supply circuit to output no-load opening voltage, where the frequency of the inverter gradually decreases until reaching a first threshold frequency from the start-up initial frequency, where when the frequency of the inverter reaches the first threshold frequency, the periodic drive circuit generates the inverter drive signal so that the frequency of the inverter becomes stable lighting frequency, and where the electric supply control circuit controls the power supply circuit to output current which is sufficient to maintain electric discharge of the discharge lamp.

    摘要翻译: 一种用于点亮放电灯的放电灯点亮装置,其中二次侧绕组中产生的电压可以叠加在逆变器的输出电压上并被施加在电极之间,其中周期性驱动电路产生逆变器驱动信号,使得频率 逆变器成为启动初始频率,电源控制电路控制电源电路输出空载开路电压,其中逆变器的频率逐渐减小,直到从启动初始频率到达第一阈值频率,其中 当逆变器的频率达到第一阈值频率时,周期性驱动电路产生逆变器驱动信号,使得逆变器的频率变得稳定的点亮频率,并且在电源控制电路控制电源电路输出电流为 足以保持放电灯的放电。

    Discharge lamp lighting apparatus and projector
    10.
    发明申请
    Discharge lamp lighting apparatus and projector 有权
    放电灯照明设备和投影机

    公开(公告)号:US20080111975A1

    公开(公告)日:2008-05-15

    申请号:US11984138

    申请日:2007-11-14

    IPC分类号: G03B21/20 H05B41/36

    摘要: In a discharge lamp lighting apparatus, increase modulation on lamp current with a pulse is carried out according to a modulation signal. At a start-up of the discharge lamp or immediately thereafter, the increase modulation is restrained, and in a lighting steady state of the discharge lamp, the restraining of the increase modulation is released, and wherein when the restraining of the increase modulation is released, in a transition period from immediately after the start-up of the discharge lamp to the lighting steady state, the restraining of increase modulation is gradually released.

    摘要翻译: 在放电灯点亮装置中,根据调制信号进行脉冲调制对灯电流的调制。 在放电灯的启动时或紧接其后,抑制增加调制,并且在放电灯的点亮稳定状态下,释放增加调制的抑制,并且其中当抑制增加调制被释放时 在从放电灯启动之后的过渡期到照明稳定状态的过渡期间,逐渐释放增加调制的抑制。