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公开(公告)号：US08106605B2
公开(公告)日：2012-01-31
申请号：US12228398
申请日：2008-08-11
IPC分类号： G05F1/00
CPC分类号： H05B33/0818 , H05B33/0848 , Y02B20/346
摘要： An exemplary backlight control circuit includes a pulse width modulation integrated circuit (PWM IC) having a power input terminal, a power source capable of outputting an operation voltage, and a switching circuit connected between the power source and the PWM IC to control if the operation voltage is provided to the power input terminal.
摘要翻译： 示例性的背光控制电路包括具有电源输入端子的脉宽调制集成电路（PWM IC），能够输出工作电压的电源以及连接在电源与PWM IC之间的开关电路， 电压被提供给电力输入端子。
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公开(公告)号：US07755298B2
公开(公告)日：2010-07-13
申请号：US12005814
申请日：2007-12-27
申请人： Han-Tao Liu , Tong Zhou , Hua Xiao , Kun Le , Jian-Hui Lu
发明人： Han-Tao Liu , Tong Zhou , Hua Xiao , Kun Le , Jian-Hui Lu
IPC分类号： H05B39/02
CPC分类号： H02M1/36
摘要： An exemplary power supply circuit (20) includes a scaler (21), a field-effect transistor (23), a pulse width modulation circuit (25), and a capacitor (29). The scaler includes an output port (213). The pulse width modulation circuit includes an input port (251). The input port of the pulse width modulation circuit is grounded via the capacitor. The field-effect transistor includes a gate electrode (231), a source electrode (232), and a drain electrode (233). The gate electrode is connected to the output port of the scaler. The source electrode is grounded. The drain electrode is connected to the input port of the pulse width modulation circuit.
摘要翻译： 示例性电源电路（20）包括缩放器（21），场效应晶体管（23），脉宽调制电路（25）和电容器（29）。 缩放器包括输出端口（213）。 脉宽调制电路包括输入端口（251）。 脉宽调制电路的输入端口通过电容器接地。 场效应晶体管包括栅电极（231），源电极（232）和漏电极（233）。 栅电极连接到定标器的输出端口。 源电极接地。 漏电极连接到脉宽调制电路的输入端口。
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公开(公告)号：US07697307B2
公开(公告)日：2010-04-13
申请号：US11985294
申请日：2007-11-13
IPC分类号： H02M3/335
CPC分类号： H02M3/33523
摘要： An exemplary power supply circuit includes a transformer (21) having a primary coil (211) and a secondary coil (212); a rectification circuit and a transistor (26) respectively coupled to two terminals of the primary coil; a communicating and filter circuit (22) coupled to the secondary coil; a sampling circuit (13) having a first resistor (231) and a first capacitor (232) connected in series; and a pulse width modulation circuit (25) coupled between the transistor and the sampling circuit. Direct current (AC) voltage is applied to the rectification circuit and is converted into DC voltage via the transformer and the communicating and filter circuit. The DC voltage is fed back to the pulse width modulation circuit via a voltage applied to the first capacitor. The pulse width modulation circuit adjusts a gating time of the transistor so as to adjust the output DC voltage output by the power supply circuit.
摘要翻译： 示例性电源电路包括具有初级线圈（211）和次级线圈（212）的变压器（21）; 整流电路和分别耦合到初级线圈的两个端子的晶体管（26）; 耦合到次级线圈的通信和滤波电路（22）; 具有串联连接的第一电阻器（231）和第一电容器（232）的采样电路（13） 以及耦合在晶体管和采样电路之间的脉宽调制电路（25）。 直流（AC）电压被施加到整流电路，并通过变压器和通信和滤波电路转换为直流电压。 直流电压通过施加到第一电容器的电压反馈到脉宽调制电路。 脉宽调制电路调节晶体管的选通时间，调整由电源电路输出的输出直流电压。
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公开(公告)号：US20080112199A1
公开(公告)日：2008-05-15
申请号：US11985294
申请日：2007-11-13
CPC分类号： H02M3/33523
摘要： An exemplary power supply circuit includes a transformer (21) having a primary coil (211) and a secondary coil (212); a rectification circuit and a transistor (26) respectively coupled to two terminals of the primary coil; a communicating and filter circuit (22) coupled to the secondary coil; a sampling circuit (13) having a first resistor (231) and a first capacitor (232) connected in series; and a pulse width modulation circuit (25) coupled between the transistor and the sampling circuit. Direct current (AC) voltage is applied to the rectification circuit and is converted into DC voltage via the transformer and the communicating and filter circuit. The DC voltage is fed back to the pulse width modulation circuit via a voltage applied to the first capacitor. The pulse width modulation circuit adjusts a gating time of the transistor so as to adjust the output DC voltage output by the power supply circuit.
摘要翻译： 示例性电源电路包括具有初级线圈（211）和次级线圈（212）的变压器（21）; 整流电路和分别耦合到初级线圈的两个端子的晶体管（26）; 耦合到次级线圈的通信和滤波电路（22）; 具有串联连接的第一电阻器（231）和第一电容器（232）的采样电路（13） 以及耦合在晶体管和采样电路之间的脉宽调制电路（25）。 直流（AC）电压被施加到整流电路，并通过变压器和通信和滤波电路转换为直流电压。 直流电压通过施加到第一电容器的电压反馈到脉宽调制电路。 脉宽调制电路调节晶体管的选通时间，调整由电源电路输出的输出直流电压。
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公开(公告)号：US20080037186A1
公开(公告)日：2008-02-14
申请号：US11891796
申请日：2007-08-13
IPC分类号： G05F1/569 , G02F1/1333
CPC分类号： G02F1/13306 , Y10T307/747 , Y10T307/858 , Y10T307/911 , Y10T307/937
摘要： An exemplary LCD (2) includes a control signal input terminal (210) configured for receiving a control signal; an output terminal (220) configured to be connected to a load circuit; a first direct current (DC) power supply (230); a first switching transistor (250) including a control electrode “b” connected to the control signal input terminal, a first current conducting electrode “c” connected to the DC power supply via a first bias resistor, and a second current conducting electrode “e” connected to ground; a second switching transistor (250) including a control electrode “G” connected to the first current conducting electrode of the first switching transistor, a first current conducting electrode “S” connected to the DC power supply, and a second current conducting electrode “D” connected to the output terminal; and a discharging resistor (225) configured to be connected between the output terminal and ground.
摘要翻译： 示例性LCD（2）包括被配置为接收控制信号的控制信号输入端（210） 被配置为连接到负载电路的输出端子（220）; 第一直流（DC）电源（230）; 包括连接到控制信号输入端子的控制电极“b”的第一开关晶体管（250），经由第一偏置电阻器连接到直流电源的第一导电电极“c”和第二导电电极“e” “连接到地面; 包括连接到第一开关晶体管的第一导电电极的控制电极“G”的第二开关晶体管（250），连接到直流电源的第一导电电极“S”和第二导电电极“D” “连接到输出端子; 以及配置为连接在输出端子和地之间的放电电阻器（225）。
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公开(公告)号：US07791225B2
公开(公告)日：2010-09-07
申请号：US11891796
申请日：2007-08-13
IPC分类号： H02B1/24
CPC分类号： G02F1/13306 , Y10T307/747 , Y10T307/858 , Y10T307/911 , Y10T307/937
摘要： An exemplary LCD (2) includes a control signal input terminal (210) configured for receiving a control signal; an output terminal (220) configured to be connected to a load circuit; a first direct current (DC) power supply (230); a first switching transistor (250) including a control electrode “b” connected to the control signal input terminal, a first current conducting electrode “c” connected to the DC power supply via a first bias resistor, and a second current conducting electrode “e” connected to ground; a second switching transistor (250) including a control electrode “G” connected to the first current conducting electrode of the first switching transistor, a first current conducting electrode “S” connected to the DC power supply, and a second current conducting electrode “D” connected to the output terminal; and a discharging resistor (225) configured to be connected between the output terminal and ground.
摘要翻译： 示例性LCD（2）包括被配置为接收控制信号的控制信号输入端（210） 被配置为连接到负载电路的输出端子（220）; 第一直流（DC）电源（230）; 包括连接到控制信号输入端子的控制电极“b”的第一开关晶体管（250），经由第一偏置电阻器连接到直流电源的第一导电电极“c”和第二导电电极“e” “连接到地面; 包括连接到第一开关晶体管的第一导电电极的控制电极“G”的第二开关晶体管（250），连接到直流电源的第一导电电极“S”和第二导电电极“D” “连接到输出端子; 以及配置为连接在输出端子和地之间的放电电阻器（225）。
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公开(公告)号：US07570317B2
公开(公告)日：2009-08-04
申请号：US11642044
申请日：2006-12-18
IPC分类号： G02F1/1333
CPC分类号： G06F1/1605
摘要： An exemplary flat panel display includes a back cover having a receiving space, and conductive wires accommodated in the receiving space. The back cover includes an inner surface corresponding to the receiving space. Typically, plural fixing elements for fastening the conductive wires are arranged on the inner surface, which can secure the conductive wires on the back cover.
摘要翻译： 示例性的平板显示器包括具有接收空间的后盖和容纳在接收空间中的导线。 后盖包括对应于接收空间的内表面。 通常，用于紧固导线的多个固定元件布置在内表面上，这可以将导线固定在后盖上。
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公开(公告)号：US20090039802A1
公开(公告)日：2009-02-12
申请号：US12228398
申请日：2008-08-11
IPC分类号： H05B41/36
CPC分类号： H05B33/0818 , H05B33/0848 , Y02B20/346
摘要： An exemplary backlight control circuit includes a pulse width modulation integrated circuit (PWM IC) having a power input terminal, a power source capable of outputting an operation voltage, and a switching circuit connected between the power source and the PWM IC to control if the operation voltage is provided to the power input terminal.
摘要翻译： 示例性的背光控制电路包括具有电源输入端子的脉宽调制集成电路（PWM IC），能够输出工作电压的电源以及连接在电源与PWM IC之间的开关电路， 电压被提供给电力输入端子。
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9.发明授权Power supply control circuit having controllable switch and liquid crystal display using the same 有权电源控制电路具有可控开关和使用其的液晶显示器公开(公告)号：US07839661B2
公开(公告)日：2010-11-23
申请号：US12011977
申请日：2008-01-29
申请人： Jie-Jian Zheng , Tong Zhou , Jian-Hui Lu , Hua Xiao , Kun Le
发明人： Jie-Jian Zheng , Tong Zhou , Jian-Hui Lu , Hua Xiao , Kun Le
IPC分类号： H02M3/335
CPC分类号： H02J9/005
摘要： An exemplary power supply control circuit (200) includes a first port (201), a second port (202), a third port (203), a controllable switch (280), and a control circuit (270). The first and second ports are configured to receive a power supply voltage signal. The second and third ports are configured to output the power supply voltage signal to a load circuit. The controllable switch includes a control member (281) and a switch member (282). The control circuit is configured to control a working state of the control member. When the load circuit stops working, the control circuit controls the control member to control the switch member to be disconnected, so as to cut off the power supply voltage signal from outputting to the load circuit. A liquid crystal display (400) using the power supply control circuit is also provided.
摘要翻译： 示例性电源控制电路（200）包括第一端口（201），第二端口（202），第三端口（203），可控开关（280）和控制电路（270）。 第一和第二端口被配置为接收电源电压信号。 第二和第三端口被配置为将电源电压信号输出到负载电路。 可控开关包括控制构件（281）和开关构件（282）。 控制电路被配置为控制控制构件的工作状态。 当负载电路停止工作时，控制电路控制控制构件以控制开关构件的断开，从而将电源电压信号切断输出到负载电路。 还提供了使用电源控制电路的液晶显示器（400）。
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10.发明申请Power supply circuit for liquid crystal display device and liquid crystal display device using the same 有权液晶显示装置用电源电路及使用其的液晶显示装置公开(公告)号：US20080122828A1
公开(公告)日：2008-05-29
申请号：US11998043
申请日：2007-11-27
CPC分类号： G09G3/3696
摘要： An exemplary power supply circuit (200) for a liquid crystal display device (2) includes a switch control circuit (28) for receiving a control signal from an external control circuit, the control signal controlling the turning on or turning off of the switch control circuit; a first DC/DC converter (27) for adjusting the direct current voltage from an external circuit, outputting an output voltage. The switch control circuit controls switches the power supply of the output voltage to a liquid crystal display panel (20) of the liquid crystal display device.
摘要翻译： 用于液晶显示装置（2）的示例性电源电路（200）包括用于从外部控制电路接收控制信号的开关控制电路（28），所述控制信号控制开关控制器的接通或断开 电路 用于调节来自外部电路的直流电压的第一DC / DC转换器（27），输出一个输出电压。 开关控制电路控制将输出电压的电源切换到液晶显示装置的液晶显示面板（20）。
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