Driver circuit for an LCD display
    1.
    发明申请
    Driver circuit for an LCD display 审中-公开
    驱动电路用于LCD显示

    公开(公告)号:US20050017941A1

    公开(公告)日:2005-01-27

    申请号:US10926417

    申请日:2004-08-25

    IPC分类号: G09G3/36

    CPC分类号: G09G3/3611

    摘要: In spite of the enormous market-originating price pressure, even large-scale domestic appliances can be fitted with LCD displays for user guidance. The expensive universal driver circuits (LCD controller ICs) with their many unused functionalities are replaced by simple logic gate circuits synchronized by a host processor for the exchange of image data between the V-RAM and the display, for cyclically successively counting through the pixels (that is to say columns) per image line and the lines per image representation of the display. As now an address in the V-RAM and thus a matrix position in the image of the display corresponds to each counting position per image, and the memory is not occupied with image data continuously but only in a corresponding section. This however is not a problem because large image data memories are available very inexpensively in comparison with an expensive LCD controller IC.

    摘要翻译: 尽管市场起因于巨大的价格压力,即使是大型家用电器也可以配备液晶显示屏,以供用户指导。 具有许多未使用功能的昂贵的通用驱动器电路(LCD控制器IC)被由主处理器同步的简单逻辑门电路代替,用于在V-RAM和显示器之间交换图像数据,以循环地依次通过像素计数 每个图像行和每个图像的显示线的行数。 现在,V-RAM中的地址,因此显示器图像中的矩阵位置对应于每个图像的每个计数位置,并且存储器不是连续地被占用图像数据,而是在相应的部分中。 然而,这不是问题,因为与昂贵的LCD控制器IC相比,大的图像数据存储器可以非常便宜地获得。

    Photovoltaic system having a solar module
    2.
    发明申请
    Photovoltaic system having a solar module 失效
    具有太阳能模块的光伏系统

    公开(公告)号:US20070186969A1

    公开(公告)日:2007-08-16

    申请号:US11703477

    申请日:2007-02-07

    IPC分类号: H02N6/00

    摘要: A photovoltaic system includes a solar module having at least one solar cell. In order to reduce the power loss of the solar module when a solar module is in shade or is defective, a semiconductor switching element is connected in parallel with the solar module and drive electronics block the semiconductor switching element when the solar module is generating power and otherwise switch the semiconductor switching element to low impedance in order to bridge the solar module.

    摘要翻译: 光伏系统包括具有至少一个太阳能电池的太阳能模块。 为了降低太阳能电池组件处于遮光状态或有缺陷时的太阳能电池组件的功率损耗,半导体开关元件与太阳能电池组件并联连接,当太阳能电池模块正在发电时,驱动电路阻挡半导体开关元件, 否则将半导体开关元件切换到低阻抗以便桥接太阳能模块。

    Photovoltaic system having a solar module
    3.
    发明授权
    Photovoltaic system having a solar module 失效
    具有太阳能模块的光伏系统

    公开(公告)号:US07692334B2

    公开(公告)日:2010-04-06

    申请号:US11703477

    申请日:2007-02-07

    IPC分类号: H02J1/00

    摘要: A photovoltaic system includes a solar module having at least one solar cell. In order to reduce the power loss of the solar module when a solar module is in shade or is defective, a semiconductor switching element is connected in parallel with the solar module and drive electronics block the semiconductor switching element when the solar module is generating power and otherwise switch the semiconductor switching element to low impedance in order to bridge the solar module.

    摘要翻译: 光伏系统包括具有至少一个太阳能电池的太阳能模块。 为了降低太阳能电池组件处于遮光状态或有缺陷时的太阳能电池组件的功率损耗,半导体开关元件与太阳能电池组件并联连接,当太阳能电池模块正在发电时,驱动电路阻挡半导体开关元件, 否则将半导体开关元件切换到低阻抗以便桥接太阳能模块。

    Electrical Power Supply Apparatus
    4.
    发明申请
    Electrical Power Supply Apparatus 有权
    电力供应装置

    公开(公告)号:US20090001815A1

    公开(公告)日:2009-01-01

    申请号:US12164423

    申请日:2008-06-30

    IPC分类号: H02J9/00

    摘要: An electrical power supply apparatus has at least one electrical load connection to which an electrical load can be connected. A first electrical power supply connection can be connected to a mains supply network. A second electrical power supply connection is connected to an autonomous electrical power supply, such as a photovoltaic system. A switching apparatus switches the connection of the at least one electrical load connection to the first electrical power supply connection in mains operation or to the second electrical power supply connection in island operation. In order to improve the energy management during island operation, the at least one electrical load connection has at least one associated evaluation and control apparatus, which identifies the island operation of the electrical power supply apparatus and switches the at least one electrical load connection on or off, at least during island operation, as a function of preset criteria.

    摘要翻译: 电力供应装置具有至少一个能够连接电负载的电负载连接。 第一个电源连接可以连接到电源网络。 第二电源连接连接到诸如光伏系统的自主电源。 交换设备在岛操作中将至少一个电负载连接的连接切换到电源操作中的第一电源连接或者在岛操作中切换到第二电源连接。 为了改善岛操作期间的能量管理,至少一个电负载连接具有至少一个相关联的评估和控制装置,其识别电力供应装置的岛状操作并且将至少一个电负载连接切换到或 至少在岛屿运营期间,作为预设标准的函数。

    Electrical power supply apparatus
    5.
    发明授权
    Electrical power supply apparatus 有权
    电源装置

    公开(公告)号:US07825542B2

    公开(公告)日:2010-11-02

    申请号:US12164423

    申请日:2008-06-30

    IPC分类号: H02J7/00

    摘要: An electrical power supply apparatus has at least one electrical load connection to which an electrical load can be connected. A first electrical power supply connection can be connected to a mains supply network. A second electrical power supply connection is connected to an autonomous electrical power supply, such as a photovoltaic system. A switching apparatus switches the connection of the at least one electrical load connection to the first electrical power supply connection in mains operation or to the second electrical power supply connection in island operation. In order to improve the energy management during island operation, the at least one electrical load connection has at least one associated evaluation and control apparatus, which identifies the island operation of the electrical power supply apparatus and switches the at least one electrical load connection on or off, at least during island operation, as a function of preset criteria.

    摘要翻译: 电力供应装置具有至少一个能够连接电负载的电负载连接。 第一个电源连接可以连接到电源网络。 第二电源连接连接到诸如光伏系统的自主电源。 交换设备在岛操作中将至少一个电负载连接的连接切换到电源操作中的第一电源连接或者在岛操作中切换到第二电源连接。 为了改善岛操作期间的能量管理,至少一个电负载连接具有至少一个相关联的评估和控制装置,其识别电力供应装置的岛岛操作并且将至少一个电负载连接切换到 至少在岛屿运营期间,作为预设标准的函数。

    Rotary speed control for a universal motor, in particular for a washing machine drive
    6.
    发明授权
    Rotary speed control for a universal motor, in particular for a washing machine drive 失效
    通用电机的转速控制,特别是洗衣机驱动

    公开(公告)号:US06854299B2

    公开(公告)日:2005-02-15

    申请号:US10751596

    申请日:2004-01-05

    IPC分类号: H02P25/14 D06F33/02

    CPC分类号: H02P25/14

    摘要: In the context of a single-phase universal motor, which has proven its worth in particular as an agile washing machine drive, the novel control provides for a substantial reduction in the remagnetization losses, rotary speed dependency, level of efficiency, and the fluctuations in the motor current pulsating at double the mains frequency, together with the resulting losses and production of noise in particular because of torque fluctuations and electromagnetically excited oscillations of the stator iron core. The motor is no longer operated by way of the phase-angle control, which is synchronized with the mains frequency, of a pulse-fired triac which is self-turning off with the current zero crossing and also no longer operated by way of the pulse duty factor of a chopper oscillating freely at high frequency. Instead, a power switch is switched on and off electronically to conduct in mains relationship over variable periods of time from before the end of a mains half-period to after the beginning of the following mains half-period. The motor current remains virtually unchanged during the switching gaps by way of a free-wheeling diode.

    摘要翻译: 在单相通用电动机的背景下,其已被证明其特别是作为敏捷洗衣机驱动器的价值,新颖的控制提供了大大降低了退磁损耗,旋转速度依赖性,效率水平和波动 电动机电流以两倍的电源频率脉动,连同造成的损耗和噪声的产生,特别是由于定子铁芯的扭矩波动和电磁激励振荡。 电动机不再通过与电源频率同步的相位角控制,脉冲三端双向可控硅开关自动关断并且不再通过脉冲操作 斩波器在高频下自由振荡的占空因数。 相反,电源开关以电子方式接通和断开,以便在从主电源半周期结束到下一个电源半周期开始之后的可变时间段内进行电源关系。 电动机电流在切换间隙期间通过续流二极管几乎保持不变。