专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06690126B2 Power supplying apparatus for electron gun in CDT 失效
标题翻译： CDT电子枪供电装置
公开(公告)号：US06690126B2
公开(公告)日：2004-02-10
申请号：US09983073
申请日：2001-10-23
申请人： Sang-Young Lee , Joong-Yeol Kwon , Jung-Hyun Ahn
发明人： Sang-Young Lee , Joong-Yeol Kwon , Jung-Hyun Ahn
IPC分类号： H01J2970
CPC分类号： H04N3/185
摘要： Disclosed is a power-supplying apparatus for an electron gun in a color display tube (CDT) provided with an fly back transformer (FBT) having a focus voltage output terminal and an acceleration voltage output terminal, further having a power supplying part supplying a predetermined reference voltage; a focus voltage detection part detecting a focus voltage of the focus voltage output terminal; and a focus voltage boost part boosting the focus voltage of the focus voltage output terminal in case that the focus voltage detected by the focus voltage detection part is lower than the reference voltage of the power supplying part. With this configuration, it is possible to recover the voltage of the focus voltage output terminal dropped according to the grid discharging of the electron gun in the color display tube to the normal voltage.
摘要翻译：公开了一种设置有具有聚焦电压输出端和加速电压输出端的回扫变压器（FBT）的彩色显像管（CDT）中的电子枪供电装置，还具有提供预定的参考电压; 检测聚焦电压输出端的聚焦电压的聚焦电压检测部; 以及在聚焦电压检测部检测到的聚焦电压低于供电部的基准电压的情况下，聚焦电压提升部分提高聚焦电压输出端子的聚焦电压。利用这种结构，可以将根据彩色显像管中的电子枪的栅格放电而下降的聚焦电压输出端的电压恢复到正常电压。

2. 发明授权

US06344982B1 Power supply circuit 失效
标题翻译：电源电路
公开(公告)号：US06344982B1
公开(公告)日：2002-02-05
申请号：US09647643
申请日：2000-11-29
申请人： Sadao Morimoto , Toshikazu Nagaki
发明人： Sadao Morimoto , Toshikazu Nagaki
IPC分类号： H02M3335
CPC分类号： H04N3/185 , H02M3/33569
摘要： A power supply circuit employed in various types of electronic appliances, telecommunications equipment, and the like, is provided for generating a voltage pulse by resonance effect of a primary side of a transformer, and outputting the voltage pulse from a secondary side after raising a voltage thereof. The power supply suppresses fluctuations of electric current, and prevents noise from being propagated through a device powered by the supply. A control circuit actuates a second switching element into a non-conducting state while a first switching element is in a conducting state. The power supply switches the second switching element into a conducting state when voltage of a primary coil is greater than voltage of a driving power supply after an electric current flows in a first diode while the first switching element is in a non-conducting state.
摘要翻译：在各种类型的电子设备，电信设备等中使用的电源电路被提供用于通过变压器的初级侧的谐振效应产生电压脉冲，并且在升高电压之后从次级侧输出电压脉冲其中。电源抑制电流的波动，并防止噪声通过由电源供电的设备传播。当第一开关元件处于导通状态时，控制电路将第二开关元件致动为非导通状态。当第一开关元件处于非导通状态时，当电流在第一二极管中流过初级线圈的电压大于驱动电源的电压时，电源将第二开关元件切换到导通状态。

3. 发明授权

US06252360B1 High voltage generator 失效
标题翻译：高压发生器
公开(公告)号：US06252360B1
公开(公告)日：2001-06-26
申请号：US09390797
申请日：1999-09-07
申请人： Sadahide Ito , Takafumi Nagasue
发明人： Sadahide Ito , Takafumi Nagasue
IPC分类号： H01J2970
CPC分类号： H04N3/185
摘要： The constitution comprises a circuit for feeding the blanking pulse winding voltage floating from a deflecting transformer 8 or a deflecting yoke 5 of a deflecting circuit 15 into a converter circuit composed of inductor 21, capacitor, diode, and resistance, and obtaining a comparative wave suited to a horizontal operation frequency, and means for changing the DC bias voltage value of comparative wave, controlling the drive pulse width of switching element 27, and controlling the high voltage output depending on changes of current flowing time width at the primary side of a high voltage generating transformer. It further comprises a power source winding 29 for controlling the oscillating voltage generated in switching OFF period of the high voltage generating transformer, or a regenerative winding 37 to power source, or both windings, and also means for adding a capacitor for preventing oscillation.
摘要翻译：该结构包括用于将从偏转电路15的偏转变压器8或偏转线圈5浮起的消隐脉冲绕组电压馈送到由电感器21，电容器，二极管和电阻组成的转换器电路中的电路，并且获得适合于以及用于改变比较波的直流偏置电压值的装置，控制开关元件27的驱动脉冲宽度，以及根据初级侧的电流流动时间宽度的变化来控制高电压输出发电变压器。还包括用于控制在高压发生变压器的开关断开期间产生的振荡电压或者电源的再生绕组37或两个绕组的电源绕组29，以及用于增加用于防止振荡的电容器的装置。

4. 发明授权

US5900702A Oscillation voltage stabilizer 失效
标题翻译：振荡稳压器
公开(公告)号：US5900702A
公开(公告)日：1999-05-04
申请号：US850819
申请日：1997-05-02
申请人： Soo-Chan Lee
发明人： Soo-Chan Lee
IPC分类号： G09G1/06 , G09G1/04 , H01J29/70
CPC分类号： H04N3/185
摘要： A display device includes a capacitor which charges or discharges, and an oscillation voltage stabilizing circuit, which prevents an abnormal oscillation by constantly maintaining the oscillation voltage of a pulse width modulation circuit which oscillates according to a time constant of a resistor. The oscillation voltage stabilizing circuit consists of: a pulse input circuit, for detecting a high voltage induced to an output transformer; a forced trigger circuit, for inverting and amplifying a pulse transmitted from the pulse input circuit, and transmitting it to a capacitor of the pulse width modulation circuit; a charge storage device, connected to a trigger terminal of the forced trigger circuit; a signal converter, for converting the output signal of the forced trigger circuit into a voltage; a voltage comparator having a first switching device which is opened or closed in accordance with the voltage transmitted from the signal converter; a control circuit having a second switching device which is opened or closed according to a state of the voltage comparator; and a resistor circuit, for varying its resistance in response to a control signal transmitted from the control circuit.
摘要翻译：显示装置包括充电或放电的电容器和振荡电压稳定电路，其通过不断维持根据电阻器的时间常数振荡的脉宽调制电路的振荡电压来防止异常振荡。振荡稳压电路包括：脉冲输入电路，用于检测感应到输出变压器的高电压; 强制触发电路，用于反相和放大从脉冲输入电路发送的脉冲，并将其发送到脉宽调制电路的电容器; 电荷存储装置，连接到强制触发电路的触发端子; 信号转换器，用于将强制触发电路的输出信号转换成电压; 电压比较器，其具有根据从信号转换器发送的电压而被打开或闭合的第一开关装置; 控制电路，具有根据电压比较器的状态打开或关闭的第二开关装置; 以及电阻电路，用于响应于从控制电路发送的控制信号而改变其电阻。

5. 发明授权

US5614794A Horizontal deflection circuit for a multisync monitor 失效
标题翻译：用于多相同步监视器的水平偏转电路
公开(公告)号：US5614794A
公开(公告)日：1997-03-25
申请号：US427008
申请日：1995-04-24
申请人： Ming-teh Yu
发明人： Ming-teh Yu
IPC分类号： G09G1/04 , H03K4/62 , H04N3/185 , H01J29/70
CPC分类号： H03K4/62 , G09G1/04 , H04N3/185
摘要： A horizontal deflection circuit for a MultiSync.TM. monitor includes a driver transistor, a driver transformer having a primary windings coupled to the driver transistor, a horizontal output transistor coupled to a secondary windings of the driver transformer, a flyback transformer coupled to an output of the horizontal output transistor, and a current source coupled between a voltage source and the primary windings of the driver transformer for stabilizing an output current of the secondary windings of the driver transformer.
摘要翻译：用于MultiSync TM监视器的水平偏转电路包括驱动晶体管，具有耦合到驱动晶体管的初级绕组的驱动变压器，耦合到驱动变压器的次级绕组的水平输出晶体管，耦合到水平输出晶体管，以及耦合在电压源和驱动变压器的初级绕组之间的电流源，用于稳定驱动变压器的次级绕组的输出电流。

6. 发明授权

US5331532A High voltage regulating circuit 失效
标题翻译：高压调节电路
公开(公告)号：US5331532A
公开(公告)日：1994-07-19
申请号：US888497
申请日：1992-05-27
申请人： Kenji Iwai , Seiji Kawaberi , Akihiro Ueyama , Junzo Watanabe
发明人： Kenji Iwai , Seiji Kawaberi , Akihiro Ueyama , Junzo Watanabe
IPC分类号： H02M3/335 , H04N3/185
CPC分类号： H04N3/185 , H02M3/33569
摘要： A coil (11) is connected in series to a primary winding (1a) of a flyback transformer (1). A series circuit of a capacitor (15) and a switching circuit (12) is connected in parallel to the coil (11). By turning on and off the switching circuit (12), the connection of the capacitor (15) to the coil (11) is switched, to thereby connect or disconnect the coil (11) in an AC fashion. Therefore, it is possible to realize a high voltage regulating circuit which can be made inexpensive.
摘要翻译：线圈（11）与回扫变压器（1）的初级绕组（1a）串联连接。电容器（15）和开关电路（12）的串联电路与线圈（11）并联连接。通过接通和断开开关电路（12），电容器（15）与线圈（11）的连接被切换，从而以交流方式连接或断开线圈（11）。因此，可以实现廉价的高压调节电路。

7. 发明授权

US5084811A Progressive start up device for a switching power supply 失效
标题翻译：开关电源的渐进启动装置
公开(公告)号：US5084811A
公开(公告)日：1992-01-28
申请号：US318589
申请日：1989-03-03
申请人： Philippe Maige , Jean-Marc Merval
发明人： Philippe Maige , Jean-Marc Merval
IPC分类号： H02M3/28 , H02M1/00 , H02M1/36 , H04N3/185
CPC分类号： H02M1/36 , H04N3/185 , Y10S323/901
摘要： In a switching power supply controlled by modulated width pulses obtained by comparison between a saw-tooth voltage (15) oscillating between first and second levels and a servo control voltage (19), the servo control voltage is initially set to a value external to the oscillation interval of the saw-tooth, then, in a first phase, varies up to a first level (dead time) and, in a second phase, varies from the first to the second level for supplying control pulses having progressively increasing widths. A circuit (45, 50) ensures the variation of the servo control voltage during the first phase according to a first slope and then the variation of said servo control voltage during the second phase according to a second slope, lower than the first one, and a circuit (60) causes the slope switching after the detection of the first control pulse.
摘要翻译：在由通过在第一和第二电平振荡的锯齿电压（15）和伺服控制电压（19）之间进行比较而获得的调制宽度脉冲控制的开关电源中，伺服控制电压被初始设置为锯齿的振荡间隔，然后在第一相位中变化到第一电平（死区时间），并且在第二相位中，从第一到第二电平变化，以提供具有逐渐增加的宽度的控制脉冲。电路（45,50）根据第一斜率确保第一相位期间的伺服控制电压的变化，然后根据第二相位低于第一斜率的第二斜率改变第二相位期间的伺服控制电压;以及电路（60）在检测到第一控制脉冲之后引起斜率切换。

8. 发明授权

US4870331A Circuit arrangement for a picture display device for the stabilization of the size of the picture displayed 失效
标题翻译：用于图像显示装置的电路布置，用于稳定显示的图像的尺寸
公开(公告)号：US4870331A
公开(公告)日：1989-09-26
申请号：US262913
申请日：1988-10-25
申请人： Paul H. Heinzerling
发明人： Paul H. Heinzerling
IPC分类号： G09G1/00 , G09G5/02 , H04N3/185
CPC分类号： H04N3/185
摘要： Circuit arrangement for a picture display device for the stabilization of the size of the picture displayed.In picture display devices having cathode-ray tubes, the first anode voltage for these tubes is recovered from the retrace pulse at a corresponding winding of the line transformer, this anode voltage source being of a relatively high ohmic value. As a result thereof, the anode voltage decreases versus an increasing anode current, and consequently, the picture displayed on the display screen becomes larger. More specifically, for picture display devices for word processing, which have a positive display, a very different anode current can flow because of different brightness settings. So as to produce nevertheless a largely constant anode voltage, a circuit arrangement which behaves as a negative resistance is provided at the lower end of the high-voltage winding. The circuit arrangement includes active elements and is supplied by the screen grid voltage, whose value is sufficient to compensate for anode voltage changes caused by changing anode currents.
摘要翻译：用于图像显示装置的电路布置，用于稳定显示的图像的尺寸。在具有阴极射线管的图像显示装置中，这些管的第一阳极电压从线路变压器的相应绕组处的回扫脉冲中恢复，该阳极电压源具有相对较高的欧姆值。结果，阳极电压相对于阳极电流增加而降低，因此显示屏上显示的图像变大。更具体地，对于具有正显示的用于文字处理的图像显示装置，由于不同的亮度设置，非常不同的阳极电流可以流动。为了产生大体上恒定的阳极电压，在高压绕组的下端设置作为负电阻的电路装置。该电路装置包括有源元件并由屏栅电压提供，其值足以补偿由改变阳极电流引起的阳极电压变化。

9. 发明授权

US4831311A High voltage stabilizing circuit for prevention of overheating 失效
标题翻译：用于防止过热的高压稳压电路
公开(公告)号：US4831311A
公开(公告)日：1989-05-16
申请号：US140094
申请日：1987-12-31
申请人： Geun J. Yug
发明人： Geun J. Yug
IPC分类号： H04N3/185 , H04N3/27
CPC分类号： H04N3/185 , H04N3/27
摘要： A high voltage stabilization curcuit for a multi-frequency horizontal deflection circuit in a video monitor or receiver and having a plurality of supply voltages applied to the flyback transformer of the deflection circuit through the operation of a pair of series connected switching circuits whereby different amplitude power supply voltages are coupled to the primary winding of the flyback transformer depending upon the horizontal drive frequency being utilized. The high voltage output across the secondary winding of the flyback transformer is stabilized through a feedback circuit which senses the output across the secondary winding of the flyback transformer to increase the amplitude of the horizontal drive applied to the primary winding when the high voltage output across the secondary winding decreases by means of a boost circuit coupled to the horizontal output circuit coupled to the primary winding.
摘要翻译：一种用于视频监视器或接收机中的多频水平偏转电路的高电压稳定电路，并且具有通过一对串联连接的开关电路的操作而施加到偏转电路的回扫变压器的多个电源电压，由此不同的振幅功率供电电压根据所使用的水平驱动频率耦合到回扫变压器的初级绕组。回扫变压器的次级绕组两端的高电压输出通过反馈电路稳定，该反馈电路检测回扫变压器的次级绕组的输出，以增加施加到初级绕组的水平驱动的幅度，次级绕组借助耦合到耦合到初级绕组的水平输出电路的升压电路而减小。

10. 发明授权

US4761723A Power supply regulator for television 失效
标题翻译：电视电源调节器
公开(公告)号：US4761723A
公开(公告)日：1988-08-02
申请号：US19855
申请日：1987-02-27
申请人： Jeffery B. Lendaro
发明人： Jeffery B. Lendaro
IPC分类号： H04N3/185 , H04N5/63 , H02M3/335 , H01J29/70 , H04N3/18
CPC分类号： H04N5/63 , H04N3/185 , H02M2001/0032 , Y02B70/16
摘要： A first run supply voltage is generated, during a power-up mode of a television receiver power supply, by rectifying a retrace voltage in a flyback transformer of a horizontal output stage of the television receiver. The rectified voltage is coupled through a resistor and a diode to a power supply voltage receiving terminal of an integrated circuit that generates a horizontal rate drive signal. The drive signal provides switching timings to the output stage. A standby supply voltage is coupled, during a standby mode, to the terminal. A shunt regulator regulates the voltage at the terminal during both the power-up and standby modes. A transistor having a collector electrode that is coupled to the run supply voltage and a base electrode, that is coupled to the anode of the diode, generates a second run supply voltage that is temperature compensated at an emitter electrode of the transistor.
摘要翻译：在电视接收机电源的上电模式期间，通过整流电视接收机的水平输出级的回扫变压器的回扫电压来产生第一运行电源电压。整流电压通过电阻和二极管耦合到产生水平速率驱动信号的集成电路的电源电压接收端。驱动信号向输出级提供切换定时。待机电源电压在待机模式期间耦合到终端。分流调节器在上电和待机模式下调节端子电压。具有耦合到运行电源电压的集电极和与二极管的阳极耦合的基极的晶体管产生在晶体管的发射极处进行温度补偿的第二运行电源电压。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式