Method of production control and method of manufacturing electronic apparatus

    公开(公告)号:US07031785B2

    公开(公告)日:2006-04-18

    申请号:US10390836

    申请日:2003-03-18

    IPC分类号: G06F19/00

    CPC分类号: H01L21/67276

    摘要: The invention relates to a method of production control that is preferably used for manufacture of electronic apparatus such as liquid crystal displays and provides a method of production control that makes it possible to set a feasible quantity to be processed. In a method of production control for a production line having a plurality of production steps, a tentative target quantity to be processed is set for a major production step; the tentative target quantity to be processed is set as a target quantity to be processed when the quantity of work in process that can be actually processed is equal to or greater than the tentative target quantity to be processed; and the quantity of work in process that can be processed is set as the target quantity to be processed when the quantity of work in process that can be processed is smaller than the tentative target quantity to be processed.

    Semiconductor device, LED driving circuit, and apparatus for displaying an image
    4.
    发明授权
    Semiconductor device, LED driving circuit, and apparatus for displaying an image 失效
    半导体装置,LED驱动电路以及显示图像的装置

    公开(公告)号:US08258711B2

    公开(公告)日:2012-09-04

    申请号:US12779343

    申请日:2010-05-13

    IPC分类号: H05B37/02

    摘要: The semiconductor device is included in the LED driving circuit (current regulator) of driving the LED array (with series-connected number m×parallel-connected number n), and is formed of a plurality (n pieces) of LED driving devices of controlling a current (constant-current driving) flowing in each string. A vertical semiconductor device, for example, a vertical MOSFET is used as the LED driving device. Both of a main device functioning as a constant-current driving device and a subsidiary device functioning as a circuit-breaking switch during dimming are formed inside a chip of the device, which are formed of the vertical semiconductor devices. In a first surface of the device, each source region of the main device and the subsidiary device is formed so as to be insulated from each other through an isolation region.

    摘要翻译: 半导体器件包括在驱动LED阵列(串联数字×并联数n)的LED驱动电路(电流调节器)中,并且由多个(n个)LED驱动装置形成, 在每个串中流动的电流(恒流驱动)。 使用垂直半导体器件,例如垂直MOSFET作为LED驱动器件。 作为恒流驱动装置的主装置和在调光期间用作断路开关的辅助装置都形成在由垂直半导体装置形成的装置的芯片的内部。 在装置的第一表面中,主装置和附属装置的每个源区形成为通过隔离区彼此绝缘。

    Power supply apparatus
    7.
    发明授权
    Power supply apparatus 有权
    电源设备

    公开(公告)号:US07339807B2

    公开(公告)日:2008-03-04

    申请号:US11651299

    申请日:2007-01-08

    IPC分类号: H02M7/00 H02H7/122

    CPC分类号: H02M1/10

    摘要: One of a plurality of voltages is adapted to be applied to power supply terminals (2a, 2b, 2c). A rectifying circuit (6) rectifies the applied voltage and develops a rectified voltage between the output terminals (6a, 6b) thereof. Inverters (16a, 16b) are connected into one of a plurality of inverter connections between the rectifier output terminals (6a, 6b) in response to one of a plurality of inverter connection indicative signals. The inverter connections are set to correspond to respective ones of the plurality of voltages, so that a predetermined voltage can be applied to each inverter whichever one of the plurality of voltages is applied to the power supply terminals. An inverter connection indicative signal generating circuit (34) is manually operated to generate a desired one of the inverter connection indicative signals. A thyristor (8) is disposed between the rectifier output terminals (6a, 6b) and the inverters (16a, 16b). When one of the plurality of voltages is applied to the power supply terminals, a voltage detecting circuit (38) generates an inverter connection indicative signal corresponding to the voltage applied to the power supply terminals. A judging unit (26d) determines whether or not the inverter connection indicative signals from the voltage detecting circuit (38) and the inverter connection indicative signal generating circuit (34) match. When the two signals match, a thyristor control unit (26a) provides a CLOSE signal to the thyristor (8). When the two signals do not match, an alarm circuit (42) is activated.

    摘要翻译: 多个电压中的一个适于施加到电源端子(2a,2b,2c)。 整流电路(6)对施加的电压进行整流,并在其输出端子(6a,6b)之间产生整流电压。 响应于多个逆变器连接指示信号中的一个,逆变器(16a,16b)连接到整流器输出端子(6a,6b)之间的多个逆变器连接中的一个。 逆变器连接被设置为对应于多个电压中的相应电压,使得可以向每个逆变器施加预定电压,无论哪一个电压被施加到电源端子。 逆变器连接指示信号发生电路(34)被手动操作以产生期望的一个逆变器连接指示信号。 在整流器输出端子(6a,6b)和逆变器(16a,16b)之间设置晶闸管(8)。 当多个电压中的一个施加到电源端子时,电压检测电路(38)产生与施加到电源端子的电压相对应的反相器连接指示信号。 判断单元(26d)判定来自电压检测电路(38)和逆变器连接指示信号生成电路(34)的逆变器连接指示信号是否一致。 当两个信号匹配时,晶闸管控制单元(26a)向晶闸管(8)提供CLOSE信号。 当两个信号不匹配时,报警电路(42)被激活。

    Power supply apparatus for arc-utilizing apparatuses
    8.
    发明申请
    Power supply apparatus for arc-utilizing apparatuses 有权
    电弧利用装置用电源装置

    公开(公告)号:US20070217231A1

    公开(公告)日:2007-09-20

    申请号:US11384845

    申请日:2006-03-20

    IPC分类号: H02M3/335

    CPC分类号: H02J1/102 B23K9/0956

    摘要: A power supply apparatus for use with arc-utilizing apparatuses includes a plurality of power supply blocks (2a, 2b) of the same capacity. Each power supply block (2a, 2b) includes an input-side rectifying circuit (4a, 4b), an inverter (10a, 10b), a transformer (12a, 12b), and an output-side rectifying circuit (18a, 18b). The inverter (10a, 10b) is controlled by a control circuit (30a, 30b) in such a manner that high-frequency current flowing the inverter (10a, 10b) or current flowing through the output-side rectifying circuit (18a, 18b) can correspond to a reference signal provided by a reference signal generator (34a, 34b). The outputs of the output-side rectifying circuits (18a, 18b) of the power supply blocks are connected in parallel with each other. The values of the reference signals generated by the reference signal generators (34a, 34b) are made always equal by the action of equipotential lines (40, 42).

    摘要翻译: 与电弧利用装置一起使用的电源装置包括具有相同容量的多个电源块(2a,2b)。 每个电源块(2a,2b)包括输入侧整流电路(4a,4b),反相器(10a,10b),变压器(12a,12b)和输出侧整流电路 侧整流电路(18a,18b)。 逆变器(10a,10b)由控制电路(30A,30b)控制,使得流过逆变器(10a,10b)的高频电流或流过输出侧整流的电流 电路(18a,18b)可以对应于由参考信号发生器(34a,34b)提供的参考信号。 电源块的输出侧整流电路(18a,18b)的输出端彼此并联连接。 由参考信号发生器(34a,34b)生成的参考信号的值通过等电位线(40,42)的作用总是相等。

    Power supply apparatus
    9.
    发明申请
    Power supply apparatus 有权
    电源设备

    公开(公告)号:US20070210736A1

    公开(公告)日:2007-09-13

    申请号:US11712679

    申请日:2007-02-28

    申请人: Hideo Ishii Toru Arai

    发明人: Hideo Ishii Toru Arai

    IPC分类号: H02H7/08

    CPC分类号: H05K7/20209 H02M3/00

    摘要: A power supply unit includes an input-side rectifying circuit (4), an inverter (8) and an output-side rectifying circuit (12), which include power semiconductor devices. The power supply unit is powered during a powering period, and the powering is interrupted during a pausing period. The powering and pausing periods alternate. A fan (18) is driven during each powering period to cool the power semiconductor devices. A temperature detector (30) measures the temperature of the power semiconductor devices and develops a measured-temperature representative signal. A setter (38) produces a reference value, which decreases over the pausing period from the measured-temperature representative signal at the beginning of the pausing period to an intended-temperature representative signal representing the temperature to be attained by the power semiconductor devices at the end of the pausing period. The reference value is prepared from the measured-temperature representative signal at the beginning of the pausing period, the intended-temperature representative signal, and the length of the pausing period. An error amplifier (36) and a fan control unit (22) control the rotation rate of the fan (18) to make the measured-temperature representative signal track the reference value.

    摘要翻译: 电源单元包括输入侧整流电路(4),反相器(8)和输出侧整流电路(12),其包括功率半导体器件。 电源单元在供电期间供电,并且在暂停期间中断供电。 供电和暂停时段交替使用。 在每个供电周期期间驱动风扇(18)以冷却功率半导体器件。 温度检测器(30)测量功率半导体器件的温度并产生测量温度的代表信号。 设定器(38)产生参考值,其在暂停期间从测量温度代表信号在暂停期开始时减小到预期温度代表信号,该预期温度代表信号表示功率半导体器件在 暂停期结束。 参考值由暂停期开始时的测量温度代表信号,预期温度代表信号和暂停时间段的长度来制备。 误差放大器(36)和风扇控制单元(22)控制风扇(18)的旋转速度,使得测量温度代表信号跟踪参考值。

    Heat-generating component cooling structure
    10.
    发明申请
    Heat-generating component cooling structure 有权
    发热部件冷却结构

    公开(公告)号:US20050286226A1

    公开(公告)日:2005-12-29

    申请号:US11218151

    申请日:2005-08-31

    IPC分类号: H02M3/28 H01L23/467 H05K7/20

    摘要: A heat-generating component cooling structure includes a hollow heat sink having a portion made of a thermally conductive material. The heat sink has an interior path extending from first to second ends of the heat sink. A fan device is disposed at the first end of the heat sink and is adapted to cause air to flow through the interior path. Fins are disposed in the path in the heat sink. Heat-generating components of an electrical circuit are mounted on an outer surface of the heat sink.

    摘要翻译: 发热部件冷却结构包括具有由导热材料制成的部分的中空散热器。 散热器具有从散热器的第一端延伸到第二端的内部路径。 风扇装置设置在散热器的第一端处并且适于使空气流过内部路径。 翅片设置在散热器的路径中。 电路的发热部件安装在散热器的外表面上。