Circuit for controlling beam current in a picture tube
    1.
    发明授权
    Circuit for controlling beam current in a picture tube 失效
    用于控制显像管中的光束电流的电路

    公开(公告)号:US06188435B1

    公开(公告)日:2001-02-13

    申请号:US09034698

    申请日:1998-03-04

    IPC分类号: H04N568

    CPC分类号: H04N9/645

    摘要: A circuit for controlling beam current in a picture tube, which circuit calculates current pictures for the R, G, B beam currents in the picture tube, which largely correspond to real beam currents in the color picture tube. The circuit comprises a comparator/integrator which compares a sum of these current pictures with a beam current information item for the purpose of controlling the R, G, B beam currents and/or the picture sharpness. Gamma correction is carried out in the circuit. The circuit may be of analog or digital construction and may advantageously be integrated in a video processor IC. The present circuit is particularly applicable for television sets or computer monitors.

    摘要翻译: 用于控制显像管中的光束电流的电路,该电路计算显像管中的R,G,B束电流的当前图像,其大体上对应于彩色显像管中的实际光束电流。 该电路包括比较器/积分器,用于将这些当前图像的和与波束电流信息项进行比较,以便控制R,G,B波束电流和/或图像清晰度。 伽马校正在电路中进行。 电路可以是模拟或数字结构,并且可以有利地集成在视频处理器IC中。 本电路特别适用于电视机或电脑显示器。

    Transformer
    2.
    发明授权
    Transformer 失效
    变压器

    公开(公告)号:US6127911A

    公开(公告)日:2000-10-03

    申请号:US243201

    申请日:1999-02-02

    CPC分类号: H01F27/324 H01F27/2804

    摘要: Transformer comprises a core (K1, K2), a primary winding (W1) and at least one secondary winding (W2), which are arranged as conductors on one or more layers of a flat carrier, and a coil former with a chamber system having chambers (C1, C2), which accommodate the layers with the windings (W1, W2). At least one of the chambers (C1, C2) is closed at least in regions, with the result that long distances for creepage paths are obtained. As a result of this, it is possible to adhere to existing safety regulations for the mains power supply isolation even with very compact dimensions and/or with full utilization of the width available for the conductor tracks. The chamber system can be formed from two or three plastic parts (P1, P2, P3) by mating. The layers with the conductor tracks are routed laterally out of the chamber system in order to make contact with terminals. In an advantageous refinement, webs with metallized slots are arranged on walls of the chamber system, in order to make contact with the conductor tracks (L). The slots are, for example, notched or trough-shaped depressions in which the carrier layers latch into place and are held thereby. The electrical contact afforded by the slots can be additionally supported by a solder-paste application with subsequent soldering. The lateral contacts mean that plated-through holes are avoided in the case of the carrier layers, with the result that the latter can be produced significantly more inexpensively. By virtue of the chamber system, it is possible for the openings in a core, for example an E/E or E/I core, to be utilized significantly better if the transformer has to comply with a sufficient insulation strength, such as in the case of mains power supply isolation, for example.

    摘要翻译: 变压器包括芯体(K1,K2),初级绕组(W1)和至少一个次级绕组(W2),它们被布置为平坦载体的一个或多个层上的导体,以及具有室系统的线圈架, 室(C1,C2),其容纳具有绕组(W1,W2)的层。 至少一个室(C1,C2)中的至少一个至少在区域中被关闭,结果是获得爬电路径的长距离。 因此,即使使用非常紧凑的尺寸和/或充分利用可用于导体轨迹的宽度,也可以遵守现有的用于电源隔离的安全规定。 腔室系统可以通过配合由两个或三个塑料部件(P1,P2,P3)形成。 具有导体轨迹的层被横向地排出腔室系统以便与端子接触。 在有利的改进中,具有金属化槽的网布置在室系统的壁上,以便与导体轨道(L)接触。 槽是例如凹槽或槽形的凹陷,其中载体层锁定就位并由此保持。 由插槽提供的电接触可以通过随后焊接的焊膏应用附加地支撑。 横向触点意味着在载体层的情况下避免了电镀通孔,结果是可以显着地更廉价地制造后者。 通过腔室系统,如果变压器必须符合足够的绝缘强度,则可以使芯体中的开口(例如E / E或E / I型芯)得到更好的利用,例如在 例如电源电源隔离的情况。

    Current supply circuit for a consumer electronics apparatus
    3.
    发明授权
    Current supply circuit for a consumer electronics apparatus 失效
    用于消费电子设备的电流供应电路

    公开(公告)号:US6085017A

    公开(公告)日:2000-07-04

    申请号:US771360

    申请日:1996-12-16

    申请人: Gerard Rilly

    发明人: Gerard Rilly

    摘要: A current supply circuit for an electronic apparatus having standby, normal and economy modes of operation includes a remote control receiver which responds to a remote control signal from a remote control unit to select either mode of operation. A voltage source provides a main voltage which is detected to produce a switching voltage when the main voltage is present. The switching element of a voltage responsive switch is connected to a first input contact in the presence of the switching voltage and to a second input contact in the absence of the switching voltage. The output contact of the voltage responsive switch is connected to an input terminal of the remote control receiver and to a first input terminal of the filter. The output contact is selectively connected to the first and second input contacts in response to the respective presence and absence of the switching voltage to apply a first operating voltage to the first input contact in the presence of the switching voltage and a second operating voltage to the second input contact to place the current supply circuit into the economy mode of operation in the absence of the switching voltage.

    摘要翻译: 具有待机,正常和经济的操作模式的电子设备的电流供应电路包括遥控接收器,其响应来自遥控单元的遥控信号以选择任一操作模式。 当存在主电压时,电压源提供被检测以产生开关电压的主电压。 电压响应开关的开关元件在存在开关电压的情况下连接到第一输入触点,并且在没有开关电压的情况下连接到第二输入触点。 电压响应开关的输出触点连接到遥控接收器的输入端子和滤波器的第一输入端子。 响应于相应的存在和不存在开关电压,输出触点被选择性地连接到第一和第二输入触点,以在开关电压和第二工作电压存在的情况下将第一工作电压施加到第一输入触点 第二输入触点,以在没有开关电压的情况下将电流供应电路放置在经济模式中。

    D.C. to D.C. converter with a switch-mode power supply
    4.
    发明授权
    D.C. to D.C. converter with a switch-mode power supply 失效
    D.C.至D.C.转换器与开关模式电源

    公开(公告)号:US4710859A

    公开(公告)日:1987-12-01

    申请号:US870112

    申请日:1986-06-03

    申请人: Gerard Rilly

    发明人: Gerard Rilly

    IPC分类号: H02M3/338 H02M3/335

    摘要: DC-converter with a switch-mode power supply, in particular for continuously operating magnetrons of the type generally used in microwave ovens. By a special tuning of an oscillating circuit (16,18) forming the control voltage for the switching transistor (9) it is achieved that the switching transistor off-time as well as its duty cycle can be varied within large ranges.

    摘要翻译: 具有开关电源的DC转换器,特别是用于连续操作微波炉中通常使用的类型的磁控管。 通过形成开关晶体管(9)的控制电压的振荡电路(16,18)的特殊调谐,可以实现开关晶体管截止时间以及占空比在大范围内变化。

    Switched-mode power supply for a load having a low power supply
    5.
    发明授权
    Switched-mode power supply for a load having a low power supply 失效
    具有低电源负载的开关电源

    公开(公告)号:US5973940A

    公开(公告)日:1999-10-26

    申请号:US961360

    申请日:1997-10-30

    IPC分类号: H02M3/335 H02M3/338

    CPC分类号: H02M3/3385

    摘要: The switched-mode power supply comprises a secondary winding and four diodes for producing two rectified voltages of the same polarity, one of which can be regulated. A connection of the unregulated voltage has connected to it a variable Zener diode as an error amplifier for transmitting a regulating signal to the primary side. The driver stage provides a pulse-width-modulated square-wave signal for driving the switching transistor which is arranged at a high potential between the operating voltage on the input side and a first connection of the primary winding. The second connection of the primary winding is connected with a Zener diode and provides a stabilized voltage for the driver stage. Arranged between the driver stage and the control electrode of the switching transistor there is a differentiating element which produces positive and negative switching voltages for controlling the switching transistor.

    摘要翻译: 开关型电源包括二次绕组和四个用于产生相同极性的两个整流电压的二极管,其中一个可以被调节。 未调节电压的连接已经连接到可变齐纳二极管作为用于将调节信号发送到初级侧的误差放大器。 驱动器级提供用于驱动开关晶体管的脉冲宽度调制方波信号,该开关晶体管被布置在输入侧的工作电压和初级绕组的第一连接之间的高电位。 初级绕组的第二个连接与齐纳二极管连接,为驱动级提供稳定的电压。 在开关晶体管的驱动级和控制电极之间布置有一个微分元件,其产生用于控制开关晶体管的正和负开关电压。

    Control circuit for a switching transistor using a tapped coil with
oppositely wound coil parts
    6.
    发明授权
    Control circuit for a switching transistor using a tapped coil with oppositely wound coil parts 失效
    使用具有相反绕线圈部分的抽头线圈的开关晶体管的控制电路

    公开(公告)号:US5892671A

    公开(公告)日:1999-04-06

    申请号:US783228

    申请日:1997-01-14

    CPC分类号: H03K4/62

    摘要: A line deflection circuit for a television receiver or a switched-mode power supply operate with a switching transistor that is connected in series with the primary winding of a transformer and is periodically switched on and off by a switching voltage. In such a circuit, appreciable turn-on and turn-off losses, which reduce the overall efficiency of the circuit, are produced at the switching transistor, particularly at higher operating frequencies. Within a control circuit a DC voltage source is connected to the base of the switching transistor via a periodically actuated switch element and a coil having a core and a tap. The two parts of the coil are wound in opposite senses, and the tap is connected via a diode to ground or to the emitter of the switching transistor. The control circuit further includes a charge-reversal path via which, during a demagnetization phase of the coil, the energy stored in the coil in the form of a current is transferred in the form of a negative voltage to a capacitor that is coupled via a second diode to a first part of the coil. The negative voltage is applied during a residual time subsequent to the demagnetization phase as a reverse voltage to the base of the switching transistor.

    摘要翻译: 用于电视接收机或开关模式电源的线路偏转电路与与变压器的初级绕组串联连接并且通过开关电压周期性地接通和断开的开关晶体管操作。 在这种电路中,特别是在更高的工作频率下,在开关晶体管处产生了降低电路整体效率的明显的导通和关断损耗。 在控制电路中,直流电压源通过周期性致动的开关元件和具有芯和抽头的线圈连接到开关晶体管的基极。 线圈的两个部分以相反的方向缠绕,并且抽头通过二极管连接到开关晶体管的地或发射极。 控制电路还包括电荷反转路径,通过该电荷反转路径,在线圈的退磁阶段期间,以电流形式存储在线圈中的能量以负电压的形式传送到电容器,该电容器经由 第二二极管到线圈的第一部分。 在退磁阶段之后的剩余时间内施加负电压作为与开关晶体管的基极的反向电压。

    Picture tube having a plurality of guns
    7.
    发明授权
    Picture tube having a plurality of guns 失效
    显像管具有多个枪

    公开(公告)号:US5418426A

    公开(公告)日:1995-05-23

    申请号:US150910

    申请日:1993-11-12

    申请人: Gerard Rilly

    发明人: Gerard Rilly

    IPC分类号: H01J31/00 H01J31/20 H01J29/98

    CPC分类号: H01J31/203 H01J2231/1255

    摘要: It is known to provide a large screen area using a picture tube having a plurality of guns. The object is to provide a transition of continuous brightness, so that the partial picture transitions are no longer perceptible.This is achieved in that a picture tube without a shadow mask, but with optical sensors, index regions and optical walls is employed, so that a precise detection of the beam is possible and the partial picture transitions are no longer perceptible.Especially for television receivers and monitors.

    摘要翻译: 已知使用具有多个枪的显像管提供大的屏幕区域。 目的是提供连续亮度的转变,使得部分图像转换不再可察觉。 这是通过使用没有荫罩的显像管,但是使用光学传感器,折射率区域和光学壁,从而可以精确地检测光束,并且部分图像转变不再可察觉。 特别适用于电视接收机和显示器。

    Line-powered, phase-control circuit
    8.
    发明授权
    Line-powered, phase-control circuit 失效
    线路供电,相位控制电路

    公开(公告)号:US5390099A

    公开(公告)日:1995-02-14

    申请号:US43878

    申请日:1993-04-07

    摘要: A line-powered phase-control circuit includes a source of rectified voltage. An inductance is responsive to the rectified voltage. A switching transistor has a conduction path connected in series with the inductance at a junction. One plate of a charging capacitor is connected to the inductance and the rectified voltage charges the charging capacitor through a first diode. A switch mode power supply includes a transformer having a primary winding connected between the junction and the plate of the charging capacitor. A second diode is connected between the inductance and the junction.

    摘要翻译: 线路供电的相位控制电路包括整流电压源。 电感响应整流电压。 开关晶体管具有与结的电感串联连接的导通路径。 充电电容器的一个板连接到电感,整流电压通过第一二极管对充电电容器充电。 开关模式电源包括具有连接在充电电容器的接点和板之间的初级绕组的变压器。 电感和结之间连接有第二个二极管。

    Inverter to feed a load having an inductive component
    9.
    发明授权
    Inverter to feed a load having an inductive component 失效
    逆变器为具有感应元件的负载供电

    公开(公告)号:US4847746A

    公开(公告)日:1989-07-11

    申请号:US171178

    申请日:1988-03-21

    IPC分类号: H02M7/538 H05B6/06

    CPC分类号: H05B6/062 H02M7/538

    摘要: An inverter circuit for driving a load including an inductive component such as an inductive cooking appliance, and being powered by a pulsating DC source obtained by rectifying a single phase AC power input. The inverter includes a pair of power transistors operating in a push pull mode with a multiple winding transformer, and operating at a frequency in excess of the AC power line frequency. Alternate switching of the power transistors is fed back through the transformer to control the switching of the transistors. The improved circuit provides positive switching of the power transistors at the higher frequencies regardless of the fluctuations in amplitude of pulsating DC power input, by triggering the generation of constant firing pulses from a fixed voltage source to the transformer windings in a feedback arrangement. A starting oscillator is also provided to initially start, or restart, the inverter; and the starting oscillator is automatically decoupled from the inverter when the inverter is operating. In an alternative embodiment, the starting oscillator also provides the function of positively switching the power transistors after the inverter is functioning by changing its mode of operation from an oscillating circuit to a pulsing circuit.

    摘要翻译: 一种逆变器电路,用于驱动包括诸如感应烹饪器具的感应元件的负载,并由通过整流单相AC电力输入获得的脉动DC源供电。 逆变器包括一对功率晶体管,其工作方式为具有多绕组变压器的推挽模式,并以超过交流电源线频率的频率工作。 通过变压器反馈功率晶体管的交替切换以控制晶体管的切换。 改进的电路通过在反馈布置中触发从固定电压源到变压器绕组的恒定点火脉冲的产生,来提供功率晶体管在较高频率下的正切换,而不管脉动直流电力输入的幅度波动如何。 还提供启动振荡器来初始启动或重新启动逆变器; 变频器运行时起动振荡器与变频器自动退耦。 在替代实施例中,启动振荡器还提供在逆变器工作之后通过将其操作模式从振荡电路改变为脉冲电路来正向切换功率晶体管的功能。

    Generator for producing a d.c. supply voltage in a television receiver
comprising a vertical scanning circuit
    10.
    发明授权
    Generator for producing a d.c. supply voltage in a television receiver comprising a vertical scanning circuit 失效
    发电机生产直流 电视接收机中的电源电压包括垂直扫描电路

    公开(公告)号:US4425533A

    公开(公告)日:1984-01-10

    申请号:US211206

    申请日:1980-11-28

    CPC分类号: H04N3/185 H03K4/625 H03K4/835

    摘要: The current which passes through the vertical deflector of a transistorized color television receiver is produced by a circuit comprising an active switch controlled and modulated at the line frequency and supplied by line retrace pulses delivered by the secondary winding of a line transformer. The voltage at the terminals of an assembly compring a capacitor in series with the vertical deflector has a constant sign which is independent of the current passing through the deflector. The same secondary winding of the line transformer supplies both the vertical scanning circuit and a rectifier circuit for producing a d.c. voltage, in particular for the supply of video amplifiers.

    摘要翻译: 通过晶体管彩色电视接收机的垂直偏转器的电流由包括由线路频率控制和调制并由线路变压器的次级绕组传送的线回扫脉冲提供的有源开关的电路产生。 组合电容器的组件的端子与垂直偏转器串联的电压具有恒定的符号,其与通过偏转器的电流无关。 线路变压器的相同次级绕组提供垂直扫描电路和用于产生直流电的整流电路。 电压,特别是供应视频放大器。