Circuit for generating very small currents
    1.
    发明授权
    Circuit for generating very small currents 失效
    用于产生非常小电流的电路

    公开(公告)号:US5426359A

    公开(公告)日:1995-06-20

    申请号:US129279

    申请日:1993-09-30

    IPC分类号: G05F3/26 G05F3/16 G05F3/20

    CPC分类号: G05F3/265

    摘要: The relationship of a reference current of a current balancing circuit to a first output current at the collector of an output transistor is adjusted via the dimensioning of a first resistance R in the emitter of the output transistor of a current balancing circuit. By adding a second current balancing circuit with a second resistor R' contained therein and which provides a second output current, there results, for R=R', the relationship of the first output current to the second output current corresponding to the relationship of the reference current to the first output current.

    摘要翻译: 通过电流平衡电路的输出晶体管的发射极中的第一电阻R的尺寸来调节电流平衡电路的参考电流与输出晶体管的集电极处的第一输出电流的关系。 通过添加包含在其中的第二电阻器R'的第二电流平衡电路并且提供第二输出电流,对于R = R',结果导致与第二输出电流的关系对应的第一输出电流与第二输出电流的关系 参考电流到第一个输出电流。

    Circuit arrangement for producing a vertical frequency deflection current
    2.
    发明授权
    Circuit arrangement for producing a vertical frequency deflection current 失效
    用于产生垂直频率偏转电流的电路布置

    公开(公告)号:US5982115A

    公开(公告)日:1999-11-09

    申请号:US999813

    申请日:1994-02-24

    申请人: Rudolf Koblitz

    发明人: Rudolf Koblitz

    CPC分类号: H03K4/835 H03K4/625 H03K4/693

    摘要: A non-switched, DC coupled vertical deflection circuit includes a source of a first DC supply voltage that is coupled to a first end terminal of a vertical deflection winding. An amplifier is energized by a second DC supply voltage having twice the magnitude of the first DC supply voltage and the same polarity. An output voltage of the amplifier having the same polarity of each of the first and second DC supply voltages is developed at a second end terminal of the deflection winding. The amplifier produces a deflection current at opposite polarities, during corresponding portions of a vertical trace interval.

    摘要翻译: 非开关直流耦合垂直偏转电路包括耦合到垂直偏转绕组的第一端子端的第一直流电源电压源。 放大器由具有两倍于第一直流电源电压和相同极性的两倍的第二直流电源供电。 具有与第一和第二直流电源电压中的每一个具有相同极性的放大器的输出电压在偏转绕组的第二端部处产生。 放大器在垂直扫描间隔的相应部分产生相反极性的偏转电流。

    Circuit arrangement for producing a vertical frequency deflection current
    3.
    发明授权
    Circuit arrangement for producing a vertical frequency deflection current 失效
    用于产生垂直频率偏转电流的电路布置

    公开(公告)号:US5313146A

    公开(公告)日:1994-05-17

    申请号:US974012

    申请日:1992-11-09

    申请人: Rudolf Koblitz

    发明人: Rudolf Koblitz

    CPC分类号: H03K4/835 H03K4/625 H03K4/693

    摘要: A circuit for generating a vertical frequency deflection current for the electron beams in the picture tube of a television receiver includes a current sensor resistor having one end connected to direct voltage potential by two resistors connected in series and a second end connected to a vertical frequency sawtooth signal by two additional resistors connected in series. An error signal generator has one input terminal connected to the junction the first two resistors and another input terminal connected the junction of the second two resistors. An output stage supplies the deflection current. The output terminal of the error signal generator is connected to the input terminal of the output stage. The error amplifier is a transconductance amplifier having an output terminal connected to reference potential by a series connection of a resistor and a capacitor.

    摘要翻译: 用于产生电视接收机的显像管中的电子束的垂直频率偏转电流的电路包括电流传感器电阻器,其一端通过串联连接的两个电阻器连接到直流电压电位,第二端连接到垂直频率锯齿波 由两个串联的附加电阻信号。 一个误差信号发生器有一个输入端连接到前两个电阻的结,另一个输入端连接第二个两个电阻的结。 输出级提供偏转电流。 误差信号发生器的输出端连接到输出级的输入端。 误差放大器是具有通过电阻器和电容器的串联连接到参考电位的输出端子的跨导放大器。

    Sawtooth generator controlled in a gain control feedback loop
    4.
    发明授权
    Sawtooth generator controlled in a gain control feedback loop 失效
    锯齿发生器控制在增益控制反馈回路中

    公开(公告)号:US5672942A

    公开(公告)日:1997-09-30

    申请号:US704972

    申请日:1996-08-29

    CPC分类号: H04N3/223 H04N3/16 H04N3/227

    摘要: In a vertical sawtooth generator of a vertical deflection circuit, a first comparator generates an output signal when a retrace portion of a sawtooth signal is at a first magnitude to initiate a vertical trace portion of the sawtooth signal. An amplifier responsive to the sawtooth signal generates a feedback current at a time that occurs between the center of vertical trace and the end of trace and away from each of the center and end of trace. The feedback current is coupled to a first capacitor to develop a control voltage. The control voltage is applied via a voltage-to-current converter to an integrating capacitor to develop in the integrating capacitor the trace portion of the sawtooth signal. The control voltage is initialized during a power start-up interval.

    摘要翻译: 在垂直偏转电路的垂直锯齿波发生器中,当锯齿波信号的回扫部分处于第一幅度时,第一比较器产生输出信号以启动锯齿波信号的垂直轨迹部分。 响应于锯齿波信号的放大器在垂直轨迹的中心和轨迹的末端之间产生反馈电流,并且远离轨迹的中心和末端。 反馈电流耦合到第一电容器以产生控制电压。 通过电压 - 电流转换器将控制电压施加到积分电容器,以在积分电容器中产生锯齿波信号的迹线部分。 在电源启动间隔期间初始化控制电压。

    Method and circuit for an automatic, high precision frequency fine tuning
    5.
    发明授权
    Method and circuit for an automatic, high precision frequency fine tuning 失效
    自动,高精度频率微调的方法和电路

    公开(公告)号:US5524289A

    公开(公告)日:1996-06-04

    申请号:US90184

    申请日:1994-03-14

    CPC分类号: H03J7/04

    摘要: For the purpose of a high precision frequency fine tuning, for example, to a certain television channel, an analog circuit, the frequency of which can be balanced, for example, an demodulator, is balanced in an integrated circuit with the help of a control current. The control current generated in a regulating loop is dependent on a reference frequency with the appropriate accuracy and on a reference frequency with the appropriate accuracy and on a reference capacitancy integrated on the chip. After selecting a frequency, the analog circuit is calibrated and the frequency is subsequently fine-tuned in a measuring mode. Following that, the analog circuit operates in the normal mode.

    摘要翻译: PCT No.PCT / EP92 / 00091 Sec。 371日期:1994年3月14日 102(e)1994年3月14日PCT PCT 1992年1月18日PCT公布。 出版物WO92 / 13389 日期为1992年8月6日。为了高精度微调,例如,对于某个电视频道,可以平衡其频率(例如解调器)的模拟电路在集成 电路借助控制电流。 在调节回路中产生的控制电流取决于具有适当精度的参考频率和具有适当精度的参考频率以及集成在芯片上的参考电容。 在选择频率后,模拟电路被校准,随后在测量模式下微调频率。 之后,模拟电路工作在正常模式。

    Start-up circuit for a switch mode power supply
    6.
    发明授权
    Start-up circuit for a switch mode power supply 失效
    开关电源的启动电路

    公开(公告)号:US5452195A

    公开(公告)日:1995-09-19

    申请号:US138212

    申请日:1993-10-08

    摘要: An integrated control circuit forms a driver stage of an output transistor of a switch mode power supply. During a start-up interval of a run mode operation, the control circuit does not consume supply current and does not produce a switching control signal for switching the transistor. During an initialization interval that follows the start-up interval, a reference voltage source that is included in the control circuit is turned on and internal conditions in the control circuit are defined. The switching control signal is generated following the initialization interval.

    摘要翻译: 集成控制电路形成开关模式电源的输出晶体管的驱动级。 在运行模式操作的启动间隔期间,控制电路不消耗供电电流,并且不产生用于切换晶体管的开关控制信号。 在启动间隔之后的初始化间隔期间,包括在控制电路中的参考电压源导通,并且定义控制电路中的内部条件。 在初始化间隔之后生成切换控制信号。

    Switch mode power supply for a television receiver and method of
controlling therefor
    7.
    发明授权
    Switch mode power supply for a television receiver and method of controlling therefor 失效
    电视接收机的开关模式电源及其控制方法

    公开(公告)号:US5381329A

    公开(公告)日:1995-01-10

    申请号:US26052

    申请日:1993-03-04

    摘要: A method of controlling the switching transistor in the switch mode power supply of a television receiver includes the steps of selectively operating the transistor in a stand-by state, a start-up state and an ON-state. During the stand-by state the switching transistor is rendered conductive by applying bursts of pulses at a frequency above, and unsynchronized with, the line frequency of the television receiver. The pulses are separated by changing intervals. During the start-up state the frequency of said bursts of the pulses is continuously reduced and pulses and the duration of the on time of the transistor is determined using a regulation voltage. During the ON-state, line synchronizing pulses are applied and the switching transistor is regulated to the line frequency.

    摘要翻译: 控制电视接收机的开关模式电源中的开关晶体管的方法包括以下步骤:在待机状态,启动状态和导通状态下选择性地操作晶体管。 在待机状态期间,通过以与电视接收机的线路频率高于并且不同步的频率施加脉冲串来使开关晶体管导通。 脉冲通过改变间隔来分离。 在启动状态期间,脉冲的脉冲串的频率被连续地减小,并且使用调节电压确定晶体管的脉冲和导通时间的持续时间。 在ON状态下,施加线路同步脉冲,并将开关晶体管调节到线路频率。

    Sawtooth generator with gain control arrangement
    8.
    发明授权
    Sawtooth generator with gain control arrangement 失效
    具增益控制装置的锯齿发生器

    公开(公告)号:US5945792A

    公开(公告)日:1999-08-31

    申请号:US880527

    申请日:1997-06-23

    CPC分类号: H04N3/223 H04N3/16 H04N3/227

    摘要: In a vertical sawtooth generator of a vertical deflection circuit, a first comparator generates an output signal when a retrace portion of a sawtooth signal is at a first magnitude to initiate a vertical trace portion of the sawtooth signal. An amplifier responsive to the sawtooth signal and to a reference signal generates a feedback current at a time that occurs between the center of vertical trace and the end of trace and away from the center of trace. The feedback current is determined in accordance with a difference between the sawtooth signal and the reference signal. The feedback current is coupled to a first capacitor to develop a gain control voltage. The control voltage is applied via a voltage-to-current converter to an integrating capacitor to develop in the integrating capacitor the trace portion of the sawtooth signal. The control voltage is initialized during a power start-up interval.

    摘要翻译: 在垂直偏转电路的垂直锯齿波发生器中,当锯齿波信号的回扫部分处于第一幅度时,第一比较器产生输出信号以启动锯齿波信号的垂直轨迹部分。 响应于锯齿波信号和参考信号的放大器在垂直轨迹的中心和迹线的末端之间发生并且远离轨迹的中心产生反馈电流。 根据锯齿波信号和参考信号之间的差异来确定反馈电流。 反馈电流耦合到第一电容器以产生增益控制电压。 通过电压 - 电流转换器将控制电压施加到积分电容器,以在积分电容器中产生锯齿波信号的迹线部分。 在电源启动间隔期间初始化控制电压。

    Device for generating intermediate voltages
    9.
    发明授权
    Device for generating intermediate voltages 失效
    用于产生中间电压的装置

    公开(公告)号:US5604428A

    公开(公告)日:1997-02-18

    申请号:US462015

    申请日:1995-04-27

    CPC分类号: G05F3/18 G05F1/56

    摘要: An apparatus for generating an intermediate voltage having a value between a positive voltage supply value and a negative supply value. The apparatus has low power dissipation and is dynamically stable over a range of external supply voltages. The apparatus comprises a voltage comparator having first and second input terminals and a control signal output terminal. A reference voltage generator is coupled to the positive voltage supply and generates a reference voltage which is coupled to the first input terminal of the comparator. A device having a zener characteristic is coupled to the positive voltage supply and generates a voltage which is coupled to the second input terminal of the comparator. A current source is coupled to the negative voltage supply and generates a current which is coupled to a terminal, to form the intermediate voltage, and is also coupled to the device to determine the voltage generated thereby. The voltage and the reference voltage are compared in the comparator which generates a control signal proportional to a difference therebetween which is coupled to control the current source.

    摘要翻译: 一种用于产生具有正电压供应值和负电源值之间的值的中间电压的装置。 该设备具有低功耗,并且在一定范围的外部电源电压下动态稳定。 该装置包括具有第一和第二输入端的电压比较器和控制信号输出端。 参考电压发生器耦合到正电压源并产生耦合到比较器的第一输入端的参考电压。 具有齐纳特性的器件耦合到正电压源并产生耦合到比较器的第二输入端的电压。 电流源耦合到负电压源并产生耦合到端子的电流,以形成中间电压,并且还耦合到器件以确定由此产生的电压。 在比较器中比较电压和参考电压,该比较器产生与它们之间的差异成比例的控制信号,该差值被耦合以控制电流源。

    Frequency response-compensated circuit
    10.
    发明授权
    Frequency response-compensated circuit 失效
    频率响应补偿电路

    公开(公告)号:US5396193A

    公开(公告)日:1995-03-07

    申请号:US930931

    申请日:1992-08-18

    CPC分类号: H03F3/347 G05F1/561

    摘要: A frequency compensated circuit includes a frequency compensation component and a negative feedback loop for feeding an output signal to the circuit input terminal. The circuit input terminal also receives a compensation signal from the frequency compensation component. A controlled system provides an output signal to the input terminal. A controlled current is supplied to the controlled system to increase the output voltage and the compensation signal from the compensation component can be substantially lower than it is in the prior art type of systems.

    摘要翻译: 频率补偿电路包括用于将输出信号馈送到电路输入端的频率补偿分量和负反馈回路。 电路输入端子还从频率补偿分量接收补偿信号。 受控系统向输入端提供输出信号。 受控电流被提供给受控系统以增加输出电压,并且来自补偿部件的补偿信号可以显着地低于现有技术类型的系统。