LIGHT-EMITTING ELEMENT DRIVING DEVICE
    1.
    发明申请
    LIGHT-EMITTING ELEMENT DRIVING DEVICE 有权
    发光元件驱动装置

    公开(公告)号:US20120074856A1

    公开(公告)日:2012-03-29

    申请号:US13314597

    申请日:2011-12-08

    IPC分类号: H05B37/03

    摘要: Short circuit failures and open circuit failures of light-emitting elements used for the backlight in an LCD panel can be reliably and easily detected. The voltage at the node between each series-connected light-emitting element array and a drive circuit is detected as a monitored voltage. A maximum detector detects the highest and a minimum detector detects the lowest of these monitored voltages. Short circuit or open circuit failure of a light-emitting element is detected by comparing the voltage difference between the maximum detector output and the minimum detector output with a specific reference voltage.

    摘要翻译: 可以可靠且容易地检测用于LCD面板中的背光的发光元件的短路故障和开路故障。 每个串联连接的发光元件阵列和驱动电路之间的节点处的电压被检测为监视电压。 最大检测器检测到最高检测器,并且最小检测器检测到这些监控电压中的最低值。 通过将最大检测器输出和最小检测器输出之间的电压差与特定参考电压进行比较来检测发光元件的短路或开路故障。

    LOAD DRIVING APPARATUS
    2.
    发明申请
    LOAD DRIVING APPARATUS 有权
    负载驱动装置

    公开(公告)号:US20100060177A1

    公开(公告)日:2010-03-11

    申请号:US12553361

    申请日:2009-09-03

    IPC分类号: H05B37/02 G05F1/00

    CPC分类号: H05B33/0815 H05B33/0824

    摘要: The load driving apparatus according to the present invention includes a load current setting signal generating section, a load current generating section, a reference voltage generating section and a drive voltage generating section. The load current setting signal generating section generates a desired load current setting signal. The load current generating section generates a load current based on the load current setting signal to drive the load. The reference voltage generating section generates a reference voltage based on the load current setting signal. The drive voltage generating section generates a drive voltage, supplies the drive voltage to the load, generates a between-both-terminals voltage between both terminals of the load current generating section based on the drive voltage and controls the drive voltage so that the difference between the between-both-terminals voltage and the reference voltage becomes small.

    摘要翻译: 根据本发明的负载驱动装置包括负载电流设定信号生成部,负载电流产生部,基准电压生成部和驱动电压生成部。 负载电流设定信号生成部生成期望的负载电流设定信号。 负载电流产生部根据负载电流设定信号生成负载电流,驱动负载。 参考电压产生部分基于负载电流设置信号产生参考电压。 驱动电压产生部生成驱动电压,向驱动电压供给驱动电压,根据驱动电压在负载电流产生部的两端之间产生两端电压,并控制驱动电压, 两端电压和参考电压变小。

    Load driving apparatus
    3.
    发明授权
    Load driving apparatus 有权
    负载驱动装置

    公开(公告)号:US08159140B2

    公开(公告)日:2012-04-17

    申请号:US12553361

    申请日:2009-09-03

    IPC分类号: H05B37/00

    CPC分类号: H05B33/0815 H05B33/0824

    摘要: The load driving apparatus according to the present invention includes a load current setting signal generating section, a load current generating section, a reference voltage generating section and a drive voltage generating section. The load current setting signal generating section generates a desired load current setting signal. The load current generating section generates a load current based on the load current setting signal to drive the load. The reference voltage generating section generates a reference voltage based on the load current setting signal. The drive voltage generating section generates a drive voltage, supplies the drive voltage to the load, generates a between-both-terminals voltage between both terminals of the load current generating section based on the drive voltage and controls the drive voltage so that the difference between the between-both-terminals voltage and the reference voltage becomes small.

    摘要翻译: 根据本发明的负载驱动装置包括负载电流设定信号生成部,负载电流产生部,基准电压生成部和驱动电压生成部。 负载电流设定信号生成部生成期望的负载电流设定信号。 负载电流产生部根据负载电流设定信号生成负载电流,驱动负载。 参考电压产生部分基于负载电流设置信号产生参考电压。 驱动电压产生部生成驱动电压,向驱动电压供给驱动电压,根据驱动电压在负载电流产生部的两端之间产生两端电压,并控制驱动电压, 两端电压和参考电压变小。

    Light-emitting element driving device
    4.
    发明授权
    Light-emitting element driving device 有权
    发光元件驱动装置

    公开(公告)号:US08878445B2

    公开(公告)日:2014-11-04

    申请号:US13314597

    申请日:2011-12-08

    IPC分类号: G09G3/36 H05B33/08

    摘要: Short circuit failures and open circuit failures of light-emitting elements used for the backlight in an LCD panel can be reliably and easily detected. The voltage at the node between each series-connected light-emitting element array and a drive circuit is detected as a monitored voltage. A maximum detector detects the highest and a minimum detector detects the lowest of these monitored voltages. Short circuit or open circuit failure of a light-emitting element is detected by comparing the voltage difference between the maximum detector output and the minimum detector output with a specific reference voltage.

    摘要翻译: 可以可靠且容易地检测用于LCD面板中的背光的发光元件的短路故障和开路故障。 每个串联连接的发光元件阵列和驱动电路之间的节点处的电压被检测为监视电压。 最大检测器检测到最高检测器,并且最小检测器检测到这些监控电压中的最低值。 通过将最大检测器输出和最小检测器输出之间的电压差与特定参考电压进行比较来检测发光元件的短路或开路故障。

    SEMICONDUCTOR DEVICE
    6.
    发明申请
    SEMICONDUCTOR DEVICE 有权
    半导体器件

    公开(公告)号:US20110007437A1

    公开(公告)日:2011-01-13

    申请号:US12521218

    申请日:2009-02-04

    IPC分类号: H02H9/04

    摘要: A semiconductor device which can achieve high breakdown voltage and high ESD tolerance of a current drive output terminal at the same time, and can quicken the response speed of a current flowing through the current drive output terminal. The inventive semiconductor device is provided, between the current drive output terminal and a first transistor or a low breakdown voltage element, with a second transistor having a breakdown voltage higher than that of the first transistor or that of the low breakdown voltage element. Furthermore, the inventive semiconductor device is provided with a diode having an anode connected with a path between the first transistor or the low breakdown voltage element and the second transistor, and a cathode connected with an ESD protection circuit.

    摘要翻译: 能够同时实现电流驱动输出端子的高击穿电压和高ESD耐受性的半导体器件,并且可以加快流过电流驱动输出端子的电流的响应速度。 本发明的半导体器件设置在电流驱动输出端子和第一晶体管或低击穿电压元件之间,其中第二晶体管的击穿电压高于第一晶体管或低击穿电压元件的击穿电压。 此外,本发明的半导体器件设置有二极管,其具有与第一晶体管或低击穿电压元件和第二晶体管之间的路径连接的阳极,以及与ESD保护电路连接的阴极。

    SEMICONDUCTOR DEVICE
    7.
    发明申请
    SEMICONDUCTOR DEVICE 有权
    半导体器件

    公开(公告)号:US20080238552A1

    公开(公告)日:2008-10-02

    申请号:US12056860

    申请日:2008-03-27

    IPC分类号: H03F1/14

    摘要: A semiconductor device includes a phase compensation circuit 6 using a MOS capacitor with a structure in which an insulating film is disposed between a gate electrode formed on a semiconductor substrate and a diffusion layer. The phase compensation circuit includes first and second MOS capacitors 14, 15. A gate electrode terminal of the first MOS capacitor is connected equivalently to a diffusion layer terminal of the second MOS capacitor that is a terminal opposite to the gate electrode terminal. A potential difference generating element 16 that generates a potential difference by allowing a current to flow therethrough is connected between a diffusion layer terminal of the first MOS capacitor and a gate electrode terminal of the second MOS capacitor. When the MOS capacitors having the voltage dependence are used, e.g., as a phase compensation circuit element of an operational amplifier, the MOS capacitance is not reduced, no matter the range of the input or output voltage of the operational amplifier, so that the phase margin will not reduced.

    摘要翻译: 半导体器件包括使用具有绝缘膜设置在形成在半导体衬底上的栅电极和扩散层之间的结构的MOS电容器的相位补偿电路6。 相位补偿电路包括第一和第二MOS电容器14,15。 第一MOS电容器的栅极端子等效地连接到与栅电极端子相对的端子的第二MOS电容器的扩散层端子。 在第一MOS电容器的扩散层端子和第二MOS电容器的栅电极端子之间连接有通过使电流流过而产生电位差的电位差产生元件16。 当使用具有电压依赖性的MOS电容器时,例如,作为运算放大器的相位补偿电路元件,不考虑运算放大器的输入或输出电压的范围,MOS电容不降低,使得相位 保证金不会减少。

    Semiconductor device
    8.
    发明授权
    Semiconductor device 有权
    半导体器件

    公开(公告)号:US07646246B2

    公开(公告)日:2010-01-12

    申请号:US12056860

    申请日:2008-03-27

    IPC分类号: H03F1/14

    摘要: A semiconductor device includes a phase compensation circuit 6 using a MOS capacitor with a structure in which an insulating film is disposed between a gate electrode formed on a semiconductor substrate and a diffusion layer. The phase compensation circuit includes first and second MOS capacitors 14, 15. A gate electrode terminal of the first MOS capacitor is connected equivalently to a diffusion layer terminal of the second MOS capacitor that is a terminal opposite to the gate electrode terminal. A potential difference generating element 16 that generates a potential difference by allowing a current to flow therethrough is connected between a diffusion layer terminal of the first MOS capacitor and a gate electrode terminal of the second MOS capacitor. When the MOS capacitors having the voltage dependence are used, e.g., as a phase compensation circuit element of an operational amplifier, the MOS capacitance is not reduced, no matter the range of the input or output voltage of the operational amplifier, so that the phase margin will not reduced.

    摘要翻译: 半导体器件包括使用具有绝缘膜设置在形成在半导体衬底上的栅电极和扩散层之间的结构的MOS电容器的相位补偿电路6。 相位补偿电路包括第一和第二MOS电容器14,15。第一MOS电容器的栅电极端子等效地连接到作为与栅电极端子相对的端子的第二MOS电容器的扩散层端子。 在第一MOS电容器的扩散层端子和第二MOS电容器的栅电极端子之间连接有通过使电流流过而产生电位差的电位差产生元件16。 当使用具有电压依赖性的MOS电容器时,例如,作为运算放大器的相位补偿电路元件,不考虑运算放大器的输入或输出电压的范围,MOS电容不降低,使得相位 保证金不会减少。

    Switching regulator with voltage step up or pass in standby mode and with voltage step up/step down in normal operation mode
    9.
    发明授权
    Switching regulator with voltage step up or pass in standby mode and with voltage step up/step down in normal operation mode 失效
    开关稳压器升压或通过待机模式,并在正常工作模式下升压/降压

    公开(公告)号:US07504807B2

    公开(公告)日:2009-03-17

    申请号:US11349215

    申请日:2006-02-08

    IPC分类号: G05F1/59

    摘要: In a standby mode, a voltage step up DC/DC converter 5 supplies a power output voltage equal to or higher than a second set voltage which is lower than a first set voltage in a normal operating mode to a microcomputer (load) 1 with current supply performance which is smaller than in the normal operating mode. On the other hand, in the normal operating mode, a voltage step up/step down DC/DC converter 4 supplies the first set voltage in the normal operating mode to the microcomputer 1.

    摘要翻译: 在待机模式下,升压DC / DC转换器5将正常操作模式中等于或高于低于第一设定电压的第二设定电压的电力输出电压提供给具有电流的微计算机(负载)1 电源性能比正常工作模式小。 另一方面,在正常工作模式中,升压/降压DC / DC转换器4将正常操作模式中的第一设定电压提供给微计算机1。

    Apparatus for lighting fluorescent lamp
    10.
    再颁专利
    Apparatus for lighting fluorescent lamp 有权
    荧光灯照明设备

    公开(公告)号:USRE39341E1

    公开(公告)日:2006-10-17

    申请号:US10654857

    申请日:2003-09-03

    IPC分类号: G05F1/00 H02M3/335

    摘要: A fluorescent lamp lighting apparatus in accordance with the present invention has first switching means (M1) driven by a high-voltage-side pulse signal input from a drive-signal generation circuit and second switching means (M2) driven by a low-voltage-side pulse signal input from the drive-signal generation circuit, wherein the first switching means (M1) is connected in series with the second switching means (M2), and a first capacity (C5) and an inductance element (L1) and the above-mentioned second switching means (M2) are provided between the high-voltage-side terminals of a pair of filament electrodes of a light-emitting tube (4), whereby a constant luminous flux can be maintained immediately after lighting.

    摘要翻译: 根据本发明的荧光灯照明装置具有由驱动信号发生电路输入的高电压侧脉冲信号驱动的第一切换装置(M 1)和由低电压侧驱动的第二切换装置(M2) 从所述驱动信号发生电路输入的电压侧脉冲信号,其中,所述第一开关装置(M 1)与所述第二开关装置(M 2)串联连接,以及第一电容(C 5)和电感元件 L 1)和上述第二开关装置(M 2)设置在发光管(4)的一对灯丝电极的高电压侧端子之间,由此可以立即保持恒定的光通量 照明后。