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1. 发明授权

US4647823A Power switch control circuit for television apparatus 失效
标题翻译：电视机电源开关控制电路
公开(公告)号：US4647823A
公开(公告)日：1987-03-03
申请号：US741795
申请日：1985-06-06
申请人： David W. Luz
发明人： David W. Luz
IPC分类号： H04N3/18 , H03K4/68 , H01J29/70
CPC分类号： H03K4/68
摘要： A television deflection apparatus includes a deflection winding coupled to a retrace capacitance to form a retrace resonant circuit. A power transistor switch is coupled to the retrace resonant circuit for generating alternating current in the retrace resonant circuit. The power transistor switch energizes a primary winding of a flyback transformer that supplies a first voltage across a secondary winding of the flyback transformer. The first voltage is coupled to an inductance for forming an upramping current in the inductance. The upramping current in the inductance is coupled to the base electrode of the power transistor switch, causing the power transistor switch to be conductive during the second half of trace. A second switch, that is responsive to a deflection rate input signal, couples to the base electrode of the power transistor switch a negative supply voltage that turns off the power transistor to initiate the retrace interval.
摘要翻译：电视偏转装置包括耦合到回扫电容的偏转线圈以形成回扫谐振电路。功率晶体管开关耦合到回扫谐振电路，用于在回扫谐振电路中产生交流电。功率晶体管开关为回扫变压器的初级绕组通电，该回扫变压器在回扫变压器的次级绕组上提供第一电压。第一电压耦合到用于在电感中形成上拉电流的电感。电感中的上拉电流耦合到功率晶体管开关的基极，导致功率晶体管开关在跟踪的后半段处于导通状态。响应于偏转率输入信号的第二开关耦合到功率晶体管的基极切换负电源电压，该负电源电压关断功率晶体管以启动回扫间隔。

2. 发明授权

US4611151A Deflection rate parabolic waveform generating circuit 失效
标题翻译：偏转率抛物线波形发生电路
公开(公告)号：US4611151A
公开(公告)日：1986-09-09
申请号：US714579
申请日：1985-03-21
申请人： Alan A. Hoover , David W. Luz , Jeffery B. Lendaro
发明人： Alan A. Hoover , David W. Luz , Jeffery B. Lendaro
IPC分类号： H04N9/31 , H04N3/22 , H04N3/237 , H04N9/28 , H01J29/70 , H01J29/76
CPC分类号： H04N9/28
摘要： A television apparatus, for generating a deflection rate parabolic auxiliary deflection current that corrects convergence distortions, includes a deflection generator output stage coupled to a deflection winding. The deflection generator output stage generates a trace scanning current during a trace interval. The primary winding of a transformer is coupled in a current path of the trace current. A parabolic voltage developing capacitance is coupled across a first secondary winding of the transformer. The trace scanning current in the primary winding of the transformer causes a deflection rate parabolic voltage to develop across a second secondary winding of the transformer. The parabolic voltage across a second secondary winding of the transformer is used for generating the convergence distortion correction current.
摘要翻译：用于产生校正收敛失真的偏转率抛物线辅助偏转电流的电视装置包括耦合到偏转绕组的偏转发生器输出级。偏转发生器输出级在跟踪间隔期间产生跟踪扫描电流。变压器的初级绕组在跟踪电流的电流路径中耦合。抛物线电压显影电容跨越变压器的第一次级绕组耦合。变压器的初级绕组中的迹线扫描电流导致偏转率抛物线电压跨越变压器的第二次级绕组。变压器的第二次级绕组两端的抛物线电压用于产生会聚失真校正电流。

3. 发明授权

US4492900A Single controllable switch, push-pull inverter for a television receiver ferroresonant power supply 失效
标题翻译：单控制开关，推挽逆变器用于电视接收机铁磁谐振电源
公开(公告)号：US4492900A
公开(公告)日：1985-01-08
申请号：US330363
申请日：1981-12-14
申请人： David W. Luz , Donald H. Willis
发明人： David W. Luz , Donald H. Willis
IPC分类号： H04N3/185 , H01J29/70
CPC分类号： H04N3/185
摘要： A scan synchronized push-pull power supply for a television receiver has a source of direct voltage coupled to the primary winding of a power transformer. A first controllable switch of the power supply includes a main current path and a control terminal for controlling conduction in the main path. A second switch of the power supply includes a main current path with first and second terminals thereof. The main paths of the two switches are coupled to the primary winding in a push-pull arrangement. A deflection rate signal that is synchronized with scanning current generation is applied to the control terminal of the first switch to alternately switch conduction of its main current path between conductive and nonconductive states during each deflection cycle in synchronism with the scanning current generation. The switching of the main current path of the first switch to either the conductive or nonconductive state produces a change of voltage between two main path terminals of the second switch so as to switch the conduction state of the second switch to the one that is opposite that of the first switch. The switching action of the two switches results in the development of alternating polarity voltages across the primary and secondary windings of the power transformer.
摘要翻译：用于电视接收机的扫描同步推挽电源具有耦合到电力变压器的初级绕组的直流电压源。电源的第一可控开关包括主电流路径和用于控制主路径中的导通的控制端子。电源的第二开关包括具有第一和第二端子的主电流通路。两个开关的主要路径以推挽装置耦合到初级绕组。与扫描电流产生同步的偏转率信号被施加到第一开关的控制端子，以与扫描电流产生同步地在每个偏转周期期间交替地切换其导电状态和非导通状态之间的主电流通路的导通。将第一开关的主电流路径切换到导通状态或非导通状态，导致第二开关的两个主路径端子之间的电压变化，从而将第二开关的导通状态切换到与第二开关相反的导通状态的第一个开关。两个开关的开关动作导致跨越电力变压器的初级和次级绕组的交流极性电压的发展。

4. 发明授权

US4441058A Deflection circuit with linearity correction 失效
标题翻译：具有线性校正的偏转电路
公开(公告)号：US4441058A
公开(公告)日：1984-04-03
申请号：US304162
申请日：1981-09-21
申请人： David W. Luz
发明人： David W. Luz
IPC分类号： H03K4/90 , H04N3/233 , H01J29/56
CPC分类号： H03K4/90 , H04N3/233
摘要： An inverter coupled to a source of DC input voltage is operated at the horizontal deflection frequency for developing a horizontal rate square-wave supply voltage. A power transformer having a first winding excited by the square-wave supply voltage develops a horizontal rate alternating polarity output voltage across a linearity correction winding. A phase control circuit phases the alternating polarity output voltage relative to the phasing of the horizontal scanning current so as to apply a greater magnitude voltage across the horizontal deflection winding during the last half of the trace interval of each deflection cycle than during the first half of the trace interval. In this manner, linearity correction of the horizontal scanning current is obtained. The linearity correction winding is electrically disconnected from the circuit during the horizontal retrace interval in order to control the amount of power introduced into the deflection circuit via the linearity correction winding.
摘要翻译：耦合到DC输入电压源的反相器以水平偏转频率工作，以形成水平方向的方波电源电压。具有由方波电源电压激励的第一绕组的电力变压器在线性校正绕组上产生水平速率交替极性输出电压。相位控制电路相对于水平扫描电流的相位将交流极性输出电压相位，以便在每个偏转周期的跟踪间隔的最后一半期间在横向偏转绕组上施加更大的幅度电压，而不是在上半部分跟踪间隔。以这种方式，获得水平扫描电流的线性校正。在水平回扫间隔期间，线性校正绕组与电路电断开，以便通过线性校正绕组控制引入偏转电路的功率量。

5. 发明授权

US4377776A Duty-cycle controlled inverter power supply for a television receiver 失效
标题翻译：用于电视接收机的占空比控制逆变器电源
公开(公告)号：US4377776A
公开(公告)日：1983-03-22
申请号：US288237
申请日：1981-07-29
申请人： David W. Luz
发明人： David W. Luz
IPC分类号： H04N3/185 , H01J29/70
CPC分类号： H04N3/185
摘要： In an inverter power supply, the main current paths of first and second transistors are coupled in a push-pull arrangement to a source of direct voltage and to the primary winding of a power transformer. The on-off switching of the conduction in the main current paths develops an alternating polarity voltage across the primary winding to develop a supply voltage across a secondary winding of the power transformer. A control circuit for the two transistors produces the on-off switching at a nominal fifty percent duty cycle. A signal representative of the current in the main paths of the two transistors is developed. In response to this signal, the duty cycle of the on-off switching is adjusted so as to oppose changes in the amplitude of the current in the main current paths and so as to oppose changes in the duty-cycle switching away from the nominal fifty percent.
摘要翻译：在逆变器电源中，第一和第二晶体管的主电流路径以推挽装置耦合到直流电源和电力变压器的初级绕组。主电流路径中的导通的开 - 关切换产生跨初级绕组的交流极性电压，以在电力变压器的次级绕组上产生电源电压。用于两个晶体管的控制电路以额定的五十％占空比产生开 - 关开关。开发了代表两个晶体管的主路径中的电流的信号。响应于该信号，调节开关开关的占空比以便与主电流路径中的电流的振幅的变化相对应，以便相对于从额定五十百分。

6. 发明授权

US4127875A Inrush current start-up circuit for a television receiver 失效
标题翻译：用于电视接收机的浪涌电流启动电路
公开(公告)号：US4127875A
公开(公告)日：1978-11-28
申请号：US750632
申请日：1976-12-15
申请人： Ronald E. Fernsler , John C. Peer , David W. Luz
发明人： Ronald E. Fernsler , John C. Peer , David W. Luz
IPC分类号： H04N3/18
CPC分类号： H04N3/18
摘要： A start-up circuit for a television receiver includes a circuit for rectifying the AC line voltage and a filter for providing a smoothed DC voltage. When the receiver is turned on, an initial interval exists in which inrush current flows into the filter. A magnetically coupled winding of an inductor in the path of the inrush current develops an alternating current potential during the initial interval. This potential is rectified and provides a start-up operating voltage for the television receiver.
摘要翻译：电视接收机的启动电路包括用于整流交流线路电压的电路和用于提供平滑的直流电压的滤波器。当接收器接通时，存在初始间隔，其中浪涌电流流入滤波器。在浪涌电流路径中的电感器的磁耦合绕组在初始间隔期间产生交流电位。该电位被整改，并为电视接收机提供启动工作电压。

7. 发明授权

US5428265A Processor controlled fluorescent lamp dimmer for aircraft liquid crystal display instruments 失效
标题翻译：用于飞机液晶显示仪器的处理器控制荧光灯调光器
公开(公告)号：US5428265A
公开(公告)日：1995-06-27
申请号：US202322
申请日：1994-02-28
申请人： Lawrence A. Booth, Jr. , David W. Luz , Robert J. Vitello , Roger E. Wiegel
发明人： Lawrence A. Booth, Jr. , David W. Luz , Robert J. Vitello , Roger E. Wiegel
IPC分类号： H05B41/392 , H05B37/02
CPC分类号： H05B41/3922 , Y10S315/04
摘要： A processor controlled fluorescent lamp dimmer circuit is shown for use in an aircraft display system utilizing a fluorescent lamp in the backlight system of individual LCD display devices. By use of a processor control dimming circuit in control over each LCD display, greater flexibility, e.g., as by adjustment in software parameters, is made possible in the operation of a dimmer control circuit. The dimmer control circuit reacts to such conditions as ambient light within the aircraft cockpit, fluorescent lamp light energy output, and fluorescent lamp temperature to provide substantially consistent actual and perceived luminance on the LCD display as a function of such detected conditions. Furthermore, the processor control achieves the desired luminance without over-driving, and therefore deteriorating, the lamps. As a result, the pilot of the aircraft enjoys a more reliable and consistent LCD display and need not be distracted by variation in luminance of the LCD display in operation of the aircraft.
摘要翻译：显示了处理器控制的荧光灯调光器电路，用于在各个LCD显示装置的背光系统中利用荧光灯的飞行器显示系统。通过使用处理器控制调光电路来控制每个LCD显示器，例如在调光控制电路的操作中，例如通过软件参数的调节，可以实现更大的灵活性。调光控制电路对飞机驾驶舱内的环境光，荧光灯光能输出和荧光灯温度等条件作出反应，以便根据这种检测条件在LCD显示器上提供基本一致的实际和感知亮度。此外，处理器控制实现期望的亮度，而不会过度驱动，并因此劣化灯。结果，飞机的飞行员享有更可靠和一致的LCD显示器，并且不需要在飞行器的操作中的LCD显示器的亮度变化中分心。

8. 发明授权

US4533855A Switched capacitor S-correction circuit 失效
标题翻译：开关电容S校正电路
公开(公告)号：US4533855A
公开(公告)日：1985-08-06
申请号：US562246
申请日：1983-12-16
申请人： Donald H. Willis , David W. Luz
发明人： Donald H. Willis , David W. Luz
IPC分类号： H04N3/23 , H04N3/233 , H01J29/70 , H01J29/76
CPC分类号： H04N3/233
摘要： An S-correction circuit for a video display apparatus provides switchable amounts of correction in a given line deflection interval in order to satisfy the requirements of cathode ray tubes having large deflection angles or complex curvature faceplates. A second S-shaping capacitor is coupled in parallel with the main S-shaping capacitor by action of a switching transistor. The time at which the transistor is switched may be controlled, for example, by modulating the switching point at a vertical rate, in order to increase the flexibility of the correction circuit.
摘要翻译：用于视频显示装置的S校正电路在给定的线偏转间隔中提供可切换量的校正，以满足具有大偏转角或复曲率面板的阴极射线管的要求。第二个S整形电容器通过开关晶体管的作用与主S整形电容器并联耦合。可以例如通过以垂直速率调制开关点来控制晶体管切换的时间，以便增加校正电路的灵活性。

9. 发明授权

US4429259A Horizontal deflection circuit with a start-up power supply 失效
标题翻译：具有启动电源的水平偏转电路
公开(公告)号：US4429259A
公开(公告)日：1984-01-31
申请号：US276305
申请日：1981-06-22
申请人： David W. Luz
发明人： David W. Luz
IPC分类号： H04N3/185 , H01J29/70 , H01J29/76
CPC分类号： H04N3/185
摘要： In a horizontal deflection circuit, a horizontal oscillator, energized by a supply voltage, develops a horizontal frequency switching signal. A deflection outputs stage is responsive to the switching signal and generates scanning current in a horizontal deflection winding. After commencement of oscillator operation, the voltage developed across a secondary winding of a flyback transformer is rectified and filtered and applied to the horizontal oscillator as the oscillator energizing supply voltage. A start-up supply for developing the oscillator supply voltage during an initial interval includes a source of voltage that is available for use prior to the commencement of oscillator operation, a capacitor, a charging circuit for charging the capacitor from the available voltage source, and a controllable switch coupled to the capacitor and to the oscillator. After the charging circuit has charged the capacitor to a predetermined threshold voltage level, the controllable switch is made conductive to apply the capacitor voltage to the oscillator to commence oscillator operation. The switch is arranged with the capacitor as a relaxation oscillator to begin discharging the capacitor by the load current drawn by the horizontal oscillator. Should the capacitor discharge to a lower threshold level before the flyback-derived supply voltage is developed, the relaxation oscillator changes states to disconnect the horizontal oscillator from the capacitor to initiate a capacitor recharging cycle.
摘要翻译：在水平偏转电路中，由电源电压供电的水平振荡器产生水平频率切换信号。偏转输出级响应于开关信号并在水平偏转绕组中产生扫描电流。在振荡器运行开始之后，在回扫变压器的次级绕组上产生的电压被整流和滤波，并作为振荡器供电电压施加到水平振荡器。用于在初始间隔期间开发振荡器电源电压的启动电源包括可在振荡器操作开始之前使用的电压源，电容器，用于从可用电压源对电容器充电的充电电路，以及耦合到电容器和振荡器的可控开关。在充电电路将电容器充电到预定阈值电压电平之后，使可控开关导通，将电容器电压施加到振荡器以开始振荡器操作。该开关配置有电容器作为张弛振荡器，以通过由水平振荡器引起的负载电流开始放电电容器。在产生回扫导出的电源电压之前，如果电容器放电到较低的阈值电平，则张弛振荡器将改变状态以将水平振荡器与电容器断开以启动电容器充电循环。

10. 发明授权

US4392090A Remote responsive television receiver ferroresonant power supply 失效
标题翻译：远程响应电视接收机铁磁谐振电源
公开(公告)号：US4392090A
公开(公告)日：1983-07-05
申请号：US322062
申请日：1981-11-16
申请人： James K. Rinehart , Donald H. Willis , David W. Luz
发明人： James K. Rinehart , Donald H. Willis , David W. Luz
IPC分类号： H04N3/18 , H01J29/70
CPC分类号： H04N3/18 , H02M2001/0032 , Y02B70/16
摘要： In a television receiver with a regulated power supply that is responsive to the state of a remote on/off command signal, a power oscillator is coupled to an unregulated direct voltage source for developing an alternating input voltage of a frequency determined by the frequency of operation of the oscillator. The oscillator is provided with a frequency control terminal that controls the oscillator frequency, depending upon a control signal applied to the terminal. A ferroresonant or self-regulating circuit is energized by the alternating input voltage to produce a regulated supply voltage that in turn energizes a load circuit within the television receiver. A remote control circuit responsive to the on/off command signal applies a control signal to the frequency control terminal of the oscillator such that during the on-state of the command signal the oscillator operates at a frequency that permits normal, ferroresonant operation of the self-regulating circuit and that during the off-state of the command signal, changes the oscillator frequency to a different one that is high enough to disable the ferroresonant operation of the self-regulating circuit. The power supply is thereby placed in the standby condition wherein the television display load circuit is substantially deenergized.
摘要翻译：在具有响应于远程开/关命令信号的状态的稳定电源的电视接收机中，功率振荡器耦合到未调节的直流电压源，用于开发由操作频率确定的频率的交流输入电压的振荡器。振荡器具有控制振荡器频率的频率控制端子，这取决于施加到端子上的控制信号。铁电谐振器或自调节电路由交流输入电压供电，以产生稳定的电源电压，其进而为电视接收器内的负载电路通电。响应于开/关命令信号的遥控电路将控制信号施加到振荡器的频率控制端，使得在命令信号的导通状态期间，振荡器以允许自身的正常，铁共振操作的频率操作并且在指令信号的关闭状态期间，将振荡器频率改变为高到足以禁止自调节电路的铁共振操作的不同的振荡器频率。因此，电源被置于待机状态，其中电视显示器负载电路基本上断电。

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