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    • 1. 发明申请
    • Electronic circuit and method of supplying energy to a high-pressure gas-discharge lamp
    • 电子电路及向高压气体放电灯供电的方法
    • US20050225262A1
    • 2005-10-13
    • US10506271
    • 2003-02-26
    • Peter LurkensHolger Monch
    • Peter LurkensHolger Monch
    • H05B41/282H05B41/292H05B37/02
    • H05B41/2923
    • The invention relates to an electronic circuit and a method of supplying energy to a high-pressure gas-discharge lamp H, 65, 75. The electronic circuit comprises a line-supply input section 62, 72 to receive and convert an a.c. voltage from an a.c. line-supply system 61, 71, an energy storage means 63, 73 to store the energy put out by the line-supply input section 62, 72 and a lamp-current regulating unit 64, 74 that is supplied with an input voltage U1 by the line-supply input section 62, 72 via the energy storage means 63, 73 and that makes available a lamp current I2 for a high-pressure gas-discharge lamp II, 65, 75. To make it possible for the energy storage means 63, 73 to be particularly small, it is proposed that the lamp-current regulating unit 64, 74 have a power section L, D, C, S, A1, A2, K having a transconductive property. If there is a drop in the input voltage U1, this property then automatically produces a reduction in the lamp current I2 made available to a high-pressure gas-discharge lamp 65, 75, H. This ensures a particularly fast adjustment to voltage fluctuations. The invention also relates to a corresponding method.
    • 本发明涉及电子电路和向高压气体放电灯H,65,75提供能量的方法。 电子电路包括线路供电输入部分62,72,用于接收和转换交流电源。 电压来自a.c. 线路供电系统61,71,用于存储由线路供电输入部分62,72所放出的能量的能量存储装置63,73和提供有输入电压U 1的灯电流调节单元64,74 经由能量存储装置63,73的线路供电输入部分62,72,并且为高压气体放电灯II,65,75提供灯电流I 2。 为了使能量存储装置63,73特别小,建议灯电流调节单元64,74具有功率部分L,D,C,S,A 1,A 2,K,具有 导电性能。 如果输入电压U 1有下降,则该特性自动产生可用于高压气体放电灯65,75,H的灯电流I 2的降低。这确保了对电压的特别快速的调整 波动 本发明还涉及相应的方法。
    • 2. 发明申请
    • Image projector and method of operating same
    • 图像投影机及其操作方法
    • US20050077841A1
    • 2005-04-14
    • US10500506
    • 2002-12-18
    • Peter LurkensCarsten DeppeXaver Riederer
    • Peter LurkensCarsten DeppeXaver Riederer
    • G03B21/00G09G3/20H04N5/74H05B41/292H05B41/38H05B41/392G05F1/00
    • H05B41/38H05B41/2928H05B41/392
    • The invention relates to an image projector with a High-Intensity-Discharge HID lamp (112) and a method of operating it. Such lamps have the disadvantage that their voltaic arc jumps back and forth between different positions at unforeseeable times during operation. This so-called arc jumping has the effect of changing the brightness, i.e. the overall brightness and/or the brightness distribution of the light emitted by the HID lamp (112). For the viewer of an image projected with such a projector, this effect appears as a jolt of this projected image. To avoid such effects for the viewer, it is first proposed according to the invention that changes in the brightness of the light in the image projector's beam path are detected. As soon as a change in brightness caused by an arc jump has been detected, this brightness is reset to a brightness detected at a moment t-2 before the arc jump, in order subsequently to convert it during a predetermined time interval T to the brightness resulting from the arc jump. This resetting must occur so soon after the arc jump, and the conversion so slowly, that the changes in the brightness of the light incident on a picture screen device (118) resulting from the arc jump, the reset, and the conversion are not perceptible to the human eye.
    • 本发明涉及具有高强度放电HID灯(112)的图像投影仪及其操作方法。 这样的灯具有这样的缺点:它们的电弧在操作期间在不可预见的时间在不同位置之间来回跳动。 这种所谓的电弧跳跃具有改变由HID灯(112)发射的光的亮度,即整体亮度和/或亮度分布的效果。 对于使用这种投影机投影的图像的观看者,此效果显示为该投影图像的颠簸。 为了避免对于观看者的这种影响,首先提出根据本发明,检测到图像投影仪的光束路径中的光的亮度的变化。 一旦检测到由电弧跳跃引起的亮度变化,则该亮度被重置为在电弧跳跃之前的时刻t-2处检测到的亮度,以便随后在预定时间间隔T期间将其转换为亮度 导致电弧跳跃。 这种复位必须在电弧跳跃之后不久就发生,并且转换如此缓慢,使得由于电弧跳跃,复位和转换而导致的图像屏幕设备(118)的光的亮度变化是不可察觉的 到人眼。
    • 4. 发明申请
    • Method of determining a zero point of a current sensor
    • 确定电流传感器零点的方法
    • US20070188105A1
    • 2007-08-16
    • US10572835
    • 2004-09-09
    • Peter Lurkens
    • Peter Lurkens
    • H05B39/04
    • G01R19/175
    • The invention relates to a method of determining a zero point (V0) of a current sensor in a circuit arrangement for operating a gas discharge lamp. The invention is characterized by the following process steps: the current (11) through the sensor is switched off for a short period during a first half wave (13) and a first test value (V6) is determined, then the current (11) through the sensor is switched off for a short period during a second half wave (14) having a different polarity and a second test value (−V7) is determined, whereupon an average value is formed of the two test values (V6, −V7), and the zero point (Vx, V0) is determined by means of said average value. It is prevented thereby that the zero point drifts during lamp operation, for example owing to heating, and that amplitudes of the positive and negative half waves (13, 14) of the lamp current (11) are formed differently. Impairment of lamp life and visible artefacts in a presented projection image are prevented.
    • 本发明涉及一种确定用于操作气体放电灯的电路装置中的电流传感器的零点(V 0)的方法。 本发明的特征在于以下工艺步骤:通过传感器的电流(11)在第一半波(13)中被切断短时间,并且确定第一测试值(V 6),则电流(11) )通过传感器在具有不同极性的第二半波(14)中被短时间地切断,并且确定第二测试值(-V 7),于是平均值由两个测试值(V 6 ,-V 7),并且通过所述平均值确定零点(Vx,V 0)。 因此,防止在灯操作期间零点漂移,例如由于加热,并且灯电流(11)的正和负半波(13,14)的振幅形成不同。 防止了投影图像中灯寿命和可见伪影的损害。
    • 5. 发明申请
    • Projection system
    • 投影系统
    • US20060023304A1
    • 2006-02-02
    • US10528935
    • 2003-09-18
    • Holger MonchPeter LurkensCarsten DeppeWinston CouwenbergJohannis ToonenRoy Zundert
    • Holger MonchPeter LurkensCarsten DeppeWinston CouwenbergJohannis ToonenRoy Zundert
    • G03B21/56
    • H04N9/3114H04N9/3155H04N9/3182H05B41/2882H05B41/2928
    • A projection system for image reproduction by means of at least one lamp (10) as well as a sensor (30) for generating a sensor signal for monitoring changes in the luminous flux generated by said at least one lamp (10) and for compensating these changes through a suitable control of the image reproduction is described. The projection system comprises a device (31; 32; 36, 37) for eliminating substantially periodic interference components from the sensor signal generated by the at least one sensor (30; 301, 302, 303). These interference components may be generated by an optical component such as in particular a color modulator (12) of the projection system. The invention thus renders possible an at least substantially interference-free compensation of fluctuations in the luminous flux generated by the lamp (10), for example owing to an unstable arc discharge, also in those color systems in which the positioning of the sensor (30) in the projection system is non-critical.
    • 一种用于通过至少一个灯(10)进行图像再现的投影系统以及用于产生用于监测所述至少一个灯(10)产生的光束变化的传感器信号的传感器(30),并用于补偿这些 描述通过图像再现的适当控制的改变。 投影系统包括用于从由至少一个传感器(30; 301,302,303)产生的传感器信号中消除基本上周期性的干扰分量的装置(31; 32; 36,37)。 这些干扰分量可以由诸如特别是投影系统的颜色调制器(12)的光学部件产生。 因此,本发明使得例如由于不稳定的电弧放电使得由灯(10)产生的光通量的波动至少基本上无干扰地补偿,在传感器(30)的定位的那些颜色系统中 )在投影系统中是非关键的。
    • 7. 发明申请
    • BINARY CONTROLLER AND POWER SUPPLY WITH A BINARY CONTROLLER
    • 二进制控制器和电源与二进制控制器
    • US20100007540A1
    • 2010-01-14
    • US12373957
    • 2007-07-10
    • Peter LurkensThomas ScheelChristian Hattrup
    • Peter LurkensThomas ScheelChristian Hattrup
    • H03M1/34H03M1/12
    • H02M3/157
    • A controller is described, which is particularly suited for a power supply with switching elements (S1, S2), such as a switching mode power supply. The controller comprises a logical unit (18) which calculates a binary state value Zk by a first logical operation from a binary input value I and a prior binary state value Zk−1. The logical unit further calculates a binary output value Y by a second logical operation from the binary input value I and the binary state value Zk. In this way, fast and efficient fully digital control may be realized especially for a switching mode power supply, where the binary input value I is a comparator value and the binary output value Y is used to drive the switch elements (S1, S2). An adaptation unit (20), which may be a signal processor, determines the logical operations and delivers them to the logical unit (18) during operation of the controller unit (16).
    • 描述了一种控制器,其特别适用于具有开关元件(S1,S2)的电源,例如开关模式电源。 控制器包括通过来自二进制输入值I和先前二进制状态值Zk-1的第一逻辑运算来计算二进制状态值Zk的逻辑单元(18)。 逻辑单元还通过来自二进制输入值I和二进制状态值Zk的第二逻辑运算来计算二进制输出值Y. 以这种方式,可以实现快速高效的全数字控制,特别是对于二进制输入值I是比较器值并且二进制输出值Y用于驱动开关元件(S1,S2)的开关模式电源。 可以是信号处理器的适配单元(20)在控制器单元(16)的操作期间确定逻辑操作并将其传送到逻辑单元(18)。
    • 10. 发明申请
    • Electronic circuit for supplying a high-pressure discharge arc lamp
    • 用于供应高压放电弧光灯的电子电路
    • US20060152169A1
    • 2006-07-13
    • US10524657
    • 2003-08-13
    • Peter Lurkens
    • Peter Lurkens
    • H05B37/00H05B39/00
    • H05B41/288
    • The invention relates to an electronic circuit and to a method of supplying a high-pressure discharge arc lamp (12). The circuit comprises a DC-AC converter, for which purpose two controllable switching elements T1, T2 are connected in the form of a half bridge to an operating potential U+ and a reference potential (10). The circuit further comprises a two-stage filter arrangement. The lamp is connected to a coil Lign of the second filter stage, and the same connection terminal of this coil Lign is connected to the reference potential (10) via a capacitor Cign. To make the circuit as small and as economical as possible, while high high-frequency interference peaks and strong currents in the circuit are avoided, it is proposed that a coil Trfilt of the first filter stage has at least three taps. The first, outer tap is connected to the output of the half bridge, the second, central tap to the second connection terminal of the coil Lign, and the third, outer tap to the reference potential (10) via a capacitor Cfilt.
    • 本发明涉及电子电路和提供高压放电弧光灯(12)的方法。 该电路包括DC-AC转换器,为此目的,将两个可控开关元件T 1,T 2以半桥形式连接到工作电位U +和参考电位(10)。 电路还包括两级滤波器装置。 灯连接到第二滤波器级的线圈Lign,并且该线圈L>的相同连接端子经由电容器C n连接到参考电位(10) SUB>。 为了尽可能小且经济地实现电路,尽管避免了电路中高的高频干扰峰值和强电流,但是提出第一滤波器级的线圈Tr 已经处于 最少三个水龙头。 第一外部抽头连接到半桥的输出,第二中心抽头连接到线圈L的第二连接端子,而第三外部抽头连接到参考电位(10 )通过电容器C< SUB>。