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公开(公告)号:US20060145634A1
公开(公告)日:2006-07-06
申请号:US11321474
申请日:2005-12-29
申请人: Yong-Xing You , Hua Xiao , Jian-Hui Lu
发明人: Yong-Xing You , Hua Xiao , Jian-Hui Lu
CPC分类号: H05B41/2855 , Y02B20/186
摘要: An LCD backlight driving circuit is provided for providing protection to LCD backlight lamps. In a preferred embodiment, the driving circuit for LCD backlight lamps comprises: a PWM controller sending control signals; two transistors receiving the control signals and sending two low-voltage pulse signals; an inverter converting the two low-voltage pulse signals to a high-voltage AC (Alternating Current) power; two lamps; two overvoltage protection circuits connected to the two lamps respectively; a voltage feedback module connected to the two lamps, a current feedback module connected to one of the two lamps; and a double-bridge circuit connected between the two lamps, and connected to the current feedback module for controlling the PWM controller to turn-on or turn-off. The driving circuit is capable of providing defective connection protection and open-circuit protection to LCD backlight lamps, and proportionately adjusting current flowing through the lamps.
摘要翻译: 提供LCD背光驱动电路,为LCD背光灯提供保护。 在优选实施例中,LCD背光灯的驱动电路包括:发送控制信号的PWM控制器; 两个晶体管接收控制信号并发送两个低电压脉冲信号; 将两个低压脉冲信号转换成高压AC(交流)功率的逆变器; 两盏灯 两个过电压保护电路分别连接到两个灯; 连接到两个灯的电压反馈模块,连接到两个灯之一的电流反馈模块; 和连接在两个灯之间的双桥电路,并连接到电流反馈模块,用于控制PWM控制器的导通或关断。 驱动电路能够为LCD背光灯提供有缺陷的连接保护和开路保护,并且成比例地调整流过灯的电流。
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公开(公告)号:US09316657B2
公开(公告)日:2016-04-19
申请号:US12760374
申请日:2010-04-14
申请人: Hua Xiao , Qisong Liu , Ping Tian , Kun Liu
发明人: Hua Xiao , Qisong Liu , Ping Tian , Kun Liu
CPC分类号: G01N35/04 , G01N35/025 , G01N2035/00287 , G01N2035/00316 , G01N2035/0465
摘要: What is disclosed are methods and apparatus for loading or removing samples for testing. The apparatus comprises a sample disk body for holding a sample for testing, a sample disk lid configured to cover at least a part of the sample disk body and comprising a fixed lid which is fixedly attached to the sample disk body and a movable gate which is movable relatively to the fixed lid, and a locking mechanism to lock the movable gate into a closed position. The opening and closing of the movable gate is controlled by the locking mechanism to prevent inadvertent opening of the sample lid while the sample disk is operating.
摘要翻译: 公开的是用于装载或移除样品进行测试的方法和装置。 该装置包括用于保持用于测试的样本的样本盘体,被配置为覆盖至少一部分样本盘体并包括固定地附接到样本盘体的固定盖的样品盘盖,以及可移动的门, 可移动地相对于固定盖,以及锁定机构,以将可移动门锁定到关闭位置。 可动门的打开和关闭由锁定机构控制,以防止在样品盘运行时样品盖的意外打开。
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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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