Discharge lamp drive apparatus and liquid crystal display apparatus
    1.
    发明授权
    Discharge lamp drive apparatus and liquid crystal display apparatus 有权
    放电灯驱动装置和液晶显示装置

    公开(公告)号:US07205726B2

    公开(公告)日:2007-04-17

    申请号:US11258899

    申请日:2005-10-27

    IPC分类号: H05B41/24

    CPC分类号: H05B41/2855

    摘要: There are provided a discharge lamp drive apparatus which can detect that both ends of at least one of a plurality of discharge lamps is in an open state in a differential drive scheme, and a liquid crystal display apparatus. A first current detection circuit 31 detects a current flowing through a first discharge lamp connection terminal group P1 or a current flowing through a second discharge lamp connection terminal group P3, and generates a first current detection signal S1. A second current detection circuit 32 detects a current flowing through the second discharge lamp connection terminal group P2 or a current flowing through a fourth discharge lamp connection terminal group P4, and generates a second current detection signal S2. A signal processor 30 receives the first current detection signal S1 and the second current detection signal S2, and generates a signal S01 which is used to detect an open state of a discharge lamp based on intensities of both the current detection signals S1 and S2.

    摘要翻译: 提供了一种放电灯驱动装置,其可以检测多个放电灯中的至少一个放电灯的两端处于差分驱动方案中的打开状态,以及液晶显示装置。 第一电流检测电路31检测流过第一放电灯连接端子组P 1的电流或流过第二放电灯连接端子组P 3的电流,并产生第一电流检测信号S1。 第二电流检测电路32检测流过第二放电灯连接端子组P 2的电流或流过第四放电灯连接端子组P 4的电流,并产生第二电流检测信号S2。 信号处理器30接收第一电流检测信号S1和第二电流检测信号S2,并且产生用于基于两个电流检测信号S 1的强度来检测放电灯的打开状态的信号S 01 和S 2。

    Discharge lamp drive apparatus and liquid crystal display apparatus
    2.
    发明申请
    Discharge lamp drive apparatus and liquid crystal display apparatus 有权
    放电灯驱动装置和液晶显示装置

    公开(公告)号:US20060103329A1

    公开(公告)日:2006-05-18

    申请号:US11258899

    申请日:2005-10-27

    IPC分类号: H05B41/24 H05B41/36

    CPC分类号: H05B41/2855

    摘要: There are provided a discharge lamp drive apparatus which can detect that both ends of at least one of a plurality of discharge lamps is in an open state in a differential drive scheme, and a liquid crystal display apparatus. A first current detection circuit 31 detects a current flowing through a first discharge lamp connection terminal group P1 or a current flowing through a second discharge lamp connection terminal group P3, and generates a first current detection signal S1. A second current detection circuit 32 detects a current flowing through the second discharge lamp connection terminal group P2 or a current flowing through a fourth discharge lamp connection terminal group P4, and generates a second current detection signal S2. A signal processor 30 receives the first current detection signal S1 and the second current detection signal S2, and generates a signal S01 which is used to detect an open state of a discharge lamp based on intensities of both the current detection signals S1 and S2.

    摘要翻译: 提供了一种放电灯驱动装置,其可以检测多个放电灯中的至少一个放电灯的两端处于差分驱动方案中的打开状态,以及液晶显示装置。 第一电流检测电路31检测流过第一放电灯连接端子组P 1的电流或流过第二放电灯连接端子组P 3的电流,并产生第一电流检测信号S1。第二电流检测电路 32检测流过第二放电灯连接端子组P 2的电流或流过第四放电灯连接端子组P 4的电流,并产生第二电流检测信号S2。信号处理器30接收第一电流检测信号 S 1和第二电流检测信号S2,并且基于两个电流检测信号S 1和S 2的强度产生用于检测放电灯的打开状态的信号S 01。

    CHOKE COIL FOR INTERLEAVED PFC CIRCUIT
    4.
    发明申请
    CHOKE COIL FOR INTERLEAVED PFC CIRCUIT 有权
    用于交流PFC电路的线圈

    公开(公告)号:US20100271164A1

    公开(公告)日:2010-10-28

    申请号:US12764335

    申请日:2010-04-21

    IPC分类号: H01F17/04

    CPC分类号: H01F3/10 H01F37/00

    摘要: A choke coil includes a pair of E-shaped cores, first and second coil windings around central legs of the E-shaped cores, and an I-shaped core. Side legs of the pair of E-shaped cores are positioned face to face with each other with the I-shaped core intervening. There are gaps between the I-shaped core and each central leg. Electrical currents flow in the first and second coil windings in the same direction, and magnetic fluxes generated by each of the electrical currents are in opposite directions in the I-shaped core.

    摘要翻译: 扼流线圈包括一对E形芯,围绕E形芯的中心腿的第一和第二线圈绕组以及I形芯。 一对E形芯的侧腿彼此面对地配置,其中I形芯插入。 I形芯和每个中心腿之间都有间隙。 电流在第一和第二线圈绕组中以相同的方向流动,并且由每个电流产生的磁通在I形芯中处于相反方向。

    Choke coil for interleaved PFC circuit
    6.
    发明授权
    Choke coil for interleaved PFC circuit 有权
    扼流圈用于交错PFC电路

    公开(公告)号:US08217746B2

    公开(公告)日:2012-07-10

    申请号:US12764335

    申请日:2010-04-21

    IPC分类号: H01F17/06

    CPC分类号: H01F3/10 H01F37/00

    摘要: A choke coil includes a pair of E-shaped cores, first and second coil windings around central legs of the E-shaped cores, and an I-shaped core. Side legs of the pair of E-shaped cores are positioned face to face with each other with the I-shaped core intervening. There are gaps between the I-shaped core and each central leg. Electrical currents flow in the first and second coil windings in the same direction, and magnetic fluxes generated by each of the electrical currents are in opposite directions in the I-shaped core.

    摘要翻译: 扼流线圈包括一对E形芯,围绕E形芯的中心腿的第一和第二线圈绕组以及I形芯。 一对E形芯的侧腿彼此面对地配置,其中I形芯插入。 I形芯和每个中心腿之间都有间隙。 电流在第一和第二线圈绕组中以相同的方向流动,并且由每个电流产生的磁通在I形芯中处于相反方向。

    Discharge lamp drive apparatus and liquid crystal display apparatus
    7.
    发明授权
    Discharge lamp drive apparatus and liquid crystal display apparatus 有权
    放电灯驱动装置和液晶显示装置

    公开(公告)号:US07227315B2

    公开(公告)日:2007-06-05

    申请号:US11345487

    申请日:2006-02-02

    IPC分类号: H05B37/00

    CPC分类号: H05B41/2828

    摘要: A discharge lamp drive apparatus includes: an inverter circuit; a transformer; a plurality of discharge lamp connection terminals; a plurality of ballast capacitors; a plurality of voltage detection circuits; and a signal processor. Each voltage detection circuit has first and second voltage detection elements constituting a series circuit. Each series circuit has a first end connected with a corresponding one of the discharge lamp connection terminals and a second end connected with a grounding terminal. The signal processor generates a signal indicating an open state of a discharge lamp by using an average value and a peak value of voltages appearing between connection points of the first and second voltage detection elements and the grounding terminals.

    摘要翻译: 放电灯驱动装置包括:逆变器电路; 变压器 多个放电灯连接端子; 多个镇流电容器; 多个电压检测电路; 和信号处理器。 每个电压检测电路具有构成串联电路的第一和第二电压检测元件。 每个串联电路具有与相应的一个放电灯连接端子连接的第一端和与接地端子连接的第二端。 信号处理器通过使用出现在第一和第二电压检测元件的连接点与接地端子之间的电压的平均值和峰值来产生指示放电灯的打开状态的信号。

    Discharge lamp drive apparatus and liquid crystal display apparatus
    8.
    发明申请
    Discharge lamp drive apparatus and liquid crystal display apparatus 有权
    放电灯驱动装置和液晶显示装置

    公开(公告)号:US20060175989A1

    公开(公告)日:2006-08-10

    申请号:US11345487

    申请日:2006-02-02

    IPC分类号: H05B39/00

    CPC分类号: H05B41/2828

    摘要: A discharge lamp drive apparatus includes: an inverter circuit; a transformer; a plurality of discharge lamp connection terminals; a plurality of ballast capacitors; a plurality of voltage detection circuits; and a signal processor. Each voltage detection circuit has first and second voltage detection elements constituting a series circuit. Each series circuit has a first end connected with a corresponding one of the discharge lamp connection terminals and a second end connected with a grounding terminal. The signal processor generates a signal indicating an open state of a discharge lamp by using an average value and a peak value of voltages appearing between connection points of the first and second voltage detection elements and the grounding terminals.

    摘要翻译: 放电灯驱动装置包括:逆变器电路; 变压器 多个放电灯连接端子; 多个镇流电容器; 多个电压检测电路; 和信号处理器。 每个电压检测电路具有构成串联电路的第一和第二电压检测元件。 每个串联电路具有与相应的一个放电灯连接端子连接的第一端和与接地端子连接的第二端。 信号处理器通过使用出现在第一和第二电压检测元件的连接点与接地端子之间的电压的平均值和峰值来产生指示放电灯的打开状态的信号。