公开(公告)号：US06269014B1

公开(公告)日：2001-07-31

申请号：US09627180

申请日：2000-07-27

申请人： Rainald Sander ,  Chihao Xu ,  Josef-Matthias Gantioler ,  Frank Auer

发明人： Rainald Sander ,  Chihao Xu ,  Josef-Matthias Gantioler ,  Frank Auer

IPC分类号： H02M75387

CPC分类号： H02M7/538 ,  H01L24/48 ,  H01L24/49 ,  H01L2224/05554 ,  H01L2224/48137 ,  H01L2224/48145 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/4903 ,  H01L2924/00014 ,  H01L2924/1306 ,  H01L2924/13091 ,  H01L2924/3011 ,  H02M7/003 ,  H02P7/04 ,  H01L2924/00 ,  H01L2224/45099 ,  H01L2224/05599 ,  H01L2924/00012

摘要： In order to supply a load, e.g. an electric motor, with current bidirectionally, an H bridge configuration containing four switching transistors is used. In order to attain outstanding electrical conductivity and also thermal conductivity, a half-bridge configuration containing two transistors of opposite conductivity types is constructed. Each of the transistors is realized on a chip, the rear sides of which chips are seated on a common conductive support preferably produced from metal. Each housing is equipped with a support of this type. The rear side of each of the two chips is formed from a drain or source electrode of the transistors. A load can be connected to the support. Two half-bridge configurations can advantageously be combined to form an H bridge configuration.

摘要翻译： 为了提供负载，例如 使用具有双向电流的电动机，包含四个开关晶体管的H桥配置。 为了获得优异的导电性和导热性，构造了包含两个相反导电类型的晶体管的半桥配置。 每个晶体管都实现在芯片上，其芯片的后侧位于通常由金属制成的导电支撑件上。 每个房屋都配有这种类型的支撑。 两个芯片中的每一个的后侧由晶体管的漏极或源极形成。 负载可以连接到支持。 两个半桥配置可以有利地组合以形成H桥配置。

公开(公告)号：US06304422B1

公开(公告)日：2001-10-16

申请号：US09694571

申请日：2000-10-23

申请人： Rainald Sander ,  Chihao Xu ,  Josef-Matthias Gantioler

发明人： Rainald Sander ,  Chihao Xu ,  Josef-Matthias Gantioler

IPC分类号： H02H318

CPC分类号： H02H11/003 ,  Y10T307/839

摘要： The polarity reversal protection circuit provides for a semiconductor switch (11) to be connected in parallel with the polarity reversal protection diode (10), which switch is switched off in the event of polarity reversal and is switched on during normal operation.

摘要翻译： 极性反转保护电路提供与极性反转保护二极管（10）并联连接的半导体开关（11），该极性反转保护二极管（10）在极性反转的情况下被切断并且在正常操作期间被接通。

公开(公告)号：US06534878B1

公开(公告)日：2003-03-18

申请号：US09101371

申请日：1998-07-08

申请人： Rainald Sander ,  Chihao Xu

发明人： Rainald Sander ,  Chihao Xu

IPC分类号： H01L2348

CPC分类号： H01L24/48 ,  H01L23/49562 ,  H01L23/50 ,  H01L24/06 ,  H01L24/49 ,  H01L2224/04042 ,  H01L2224/05553 ,  H01L2224/05554 ,  H01L2224/05599 ,  H01L2224/0603 ,  H01L2224/32245 ,  H01L2224/4813 ,  H01L2224/48247 ,  H01L2224/4846 ,  H01L2224/48472 ,  H01L2224/4903 ,  H01L2224/49051 ,  H01L2224/4911 ,  H01L2224/49112 ,  H01L2224/49171 ,  H01L2224/73265 ,  H01L2924/00014 ,  H01L2924/01006 ,  H01L2924/01019 ,  H01L2924/01057 ,  H01L2924/1305 ,  H01L2924/13091 ,  H01L2924/19043 ,  H01L2924/3011 ,  H01L2224/45099 ,  H01L2924/00 ,  H01L2224/85399

摘要： For optimizing the power connection between semiconductor chip and conductor frame in a semiconductor switch, the bond wires that form the power path input of the power part are symmetrically bonded on the conductor frame. The length of the bond wires is then the same and shorter than in an asymmetrical connection since bonding is carried out from two sides.

摘要翻译： 为了优化半导体开关中的半导体芯片和导体框架之间的电力连接，形成功率部分的功率路径输入的接合线对称地接合在导体框架上。 因此，接合线的长度与非对称连接的长度相同并且短于接合线的长度，因为从两侧进行接合。

公开(公告)号：US6034448A

公开(公告)日：2000-03-07

申请号：US159720

申请日：1998-09-24

申请人： Chihao Xu ,  Rainald Sander

发明人： Chihao Xu ,  Rainald Sander

IPC分类号： H03K17/0812 ,  H03K17/687 ,  H02B1/24

CPC分类号： H03K17/687 ,  H03K17/08122 ,  Y10T307/839

摘要： A semiconductor switch, particularly an MOS high-side power switch, having at least one power transistor for driving a load, and having a circuit for driving the power transistor via an external control signal by activating the power transistor over its gate. In order to also assure low dissipated power of the MOS power transistor given a reversal of the power supply, an auxiliary circuit is provided for the activation of the MOS power transistor via its gate given upon such reversal.

摘要翻译： 具有用于驱动负载的至少一个功率晶体管的半导体开关，特别是MOS高侧功率开关，并且具有通过在其栅极上激活功率晶体管的外部控制信号来驱动功率晶体管的电路。 为了确保MOS功率晶体管在电源反转时的低耗散功率，提供了一个辅助电路，用于通过这样的反相给予MOS功率晶体管的激活。

公开(公告)号：US6054738A

公开(公告)日：2000-04-25

申请号：US136206

申请日：1998-08-19

申请人： Rainald Sander ,  Chihao Xu

发明人： Rainald Sander ,  Chihao Xu

IPC分类号： H01L27/02 ,  H01L27/07 ,  H01L29/76 ,  H01L29/74

CPC分类号： H01L27/0251 ,  H01L27/0727 ,  H01L2924/0002

摘要： Field-effect-controllable power semiconductor components with a source-connected load are made conducting via a control circuit with an integrated charge pump. When a generator connected to the source side is in operation, then the source potential becomes higher than the drain potential. A parasitic diode therefore carries current in the control circuit. That current turns on a parasitic bipolar transistor that limits the gate potential to a value that is no longer sufficient for making the power semiconductor component conducting. This effect is prevented by connecting a further diode in antiseries with the parasitic diode.

摘要翻译： 具有源极负载的场效应可控功率半导体元件通过具有集成电荷泵的控制电路导通。 当连接到源极的发生器工作时，源极电位变得高于漏极电位。 因此，寄生二极管在控制电路中承载电流。 该电流导通寄生双极晶体管，其将栅极电位限制为不再足以使功率半导体元件导通的值。 通过将另一个二极管连接到寄生二极管来防止这种效应。

公开(公告)号：US08421741B2

公开(公告)日：2013-04-16

申请号：US12557585

申请日：2009-09-11

申请人： Chihao Xu ,  Andreas Karrenbauer ,  Mark Albrecht

发明人： Chihao Xu ,  Andreas Karrenbauer ,  Mark Albrecht

IPC分类号： G09G3/36

CPC分类号： G09G3/3426 ,  G09G3/342 ,  G09G3/3648 ,  G09G2320/0285 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2360/16

摘要： A method and system for displaying an image on a liquid crystal display (LCD) that may reduce power consumption. The method and system can include calculating a luminance for pixels in an image in a LCD based upon a light spread function and brightness values of light emitting diodes (LEDs). The method and system can also include changing a brightness of an LED based upon a consideration of the gray value of the pixels and the distance of the pixels from a dominant LED. The method and system can further set the brightness of the LED units to a brightness substantially greater than or equal to a gray value of each pixel of the image.

摘要翻译： 一种用于在可以降低功耗的液晶显示器（LCD）上显示图像的方法和系统。 该方法和系统可以包括基于发光二极管（LED）的光扩展功能和亮度值来计算LCD中的图像中的像素的亮度。 该方法和系统还可以包括基于像素的灰度值和像素与主要LED的距离的关系来改变LED的亮度。 该方法和系统可以将LED单元的亮度进一步设置为基本上大于或等于图像的每个像素的灰度值的亮度。

公开(公告)号：US10115332B2

公开(公告)日：2018-10-30

申请号：US15164368

申请日：2016-05-25

申请人： Chihao Xu

发明人： Chihao Xu ,  Pascal Volkert

IPC分类号： G09G3/20 ,  G09G3/32 ,  G09G3/3233 ,  G09G5/06 ,  G09G3/3216

摘要： A method for driving an active matrix organic light-emitting diode (AMOLED) display. The method may be used to digitally drive the AMOLED display in a way that limits the susceptibility of the AMOLED display to certain problems arising out of digital driving techniques, such as image sticking or low display lifetimes. The method involves generating compensation factors corresponding to each pixel of the display and using those compensation factors to control the illumination of the display. The aspects of the method that incorporate the operation point for generating a compensation factor may also be applied to analog driving of AMOLED displays.

公开(公告)号：US08456493B2

公开(公告)日：2013-06-04

申请号：US12163083

申请日：2008-06-27

申请人： Chihao Xu ,  Jürgen Wahl ,  Friedrich Eisenbrand ,  Andreas Karrenbauer ,  Kian Min Soh ,  Christoph Hitzelberger

发明人： Chihao Xu ,  Jürgen Wahl ,  Friedrich Eisenbrand ,  Andreas Karrenbauer ,  Kian Min Soh ,  Christoph Hitzelberger

IPC分类号： G09G5/10

CPC分类号： G09G3/3216 ,  G09G3/2014 ,  G09G3/2081 ,  G09G3/3266 ,  G09G5/18 ,  G09G2310/0205 ,  G09G2360/16

摘要： A method is described for driving matrix displays which are made up of a plurality of lines with individual pixels, which lines are configured as rows and columns, wherein individual lines are driven selectively by rows being activated for a defined row addressing time and an operating current or a corresponding voltage being applied to the columns in correlation with the activated row corresponding to the desired brightness in the pixels. In order to improve the performance of the display, the row addressing time for each row is determined as a function of the maximum brightness of all the columns of the row.

摘要翻译： 描述了一种用于驱动矩阵显示器的方法，该矩阵显示器由具有各个像素的多条线构成，这些线被配置为行和列，其中各行被选择性地由对于定义的行寻址时间激活的行和操作电流 或相应的电压与对应于像素中的期望亮度的激活行相关联地施加到列。 为了提高显示的性能，每行的行寻址时间被确定为行的所有列的最大亮度的函数。

公开(公告)号：US20110181632A1

公开(公告)日：2011-07-28

申请号：US12993081

申请日：2009-05-13

申请人： Chihao Xu ,  Andreas Karrenbauer ,  Cosmin Codrea

发明人： Chihao Xu ,  Andreas Karrenbauer ,  Cosmin Codrea

IPC分类号： G09G3/32 ,  G09G5/10

CPC分类号： G09G3/3216 ,  G09G3/2014 ,  G09G2310/0205 ,  G09G2310/0248 ,  G09G2310/0251 ,  G09G2310/061 ,  G09G2320/041 ,  G09G2330/023 ,  G09G2330/045 ,  G09G2360/16

摘要： A method and unit for controlling a passive matrix-OLED-display with OLEDs assembled in matrix form, wherein columns for controlling an OLED are connected with a current source, and rows are connected consecutively during row addressing time. The lightness of a pixel located on the intersection point of a column with an addressed row is influenced by the turn-on time being within the row addressing time and by the amplitude of the column current. To reach an energy-efficient control it is proposed to control the lightness of the pixel subject to the charge quantity converted into light and subject to a charge quantity during a post luminescence time and converted into light by switching the column potential-free during post luminescence time and considering the charge quantity stored in the capacity of OLEDs before the addressing at determination of the charge quantity converted at the OLED.

摘要翻译： 用于以矩阵形式组装OLED的用于控制无源矩阵OLED显示器的方法和单元，其中用于控制OLED的列与电流源连接，并且行在行寻址时间期间连续地连接。 位于具有寻址行的列的交点上的像素的亮度受到在行寻址时间内的导通时间和列电流的振幅的影响。 为了达到节能控制，提出了控制经过转换为光的电荷量的像素的亮度，并且在后发光时间期间受到电荷量的影响，并且通过在后期发光期间切换无电位的柱转换为光 并且考虑在确定在OLED处转换的电荷量的寻址之前以OLED的能力存储的电荷量。

公开(公告)号：US11024214B2

公开(公告)日：2021-06-01

申请号：US16669944

申请日：2019-10-31

申请人： Chihao Xu

发明人： Chihao Xu ,  Pascal Volkert

IPC分类号： G09G3/20 ,  G09G3/3233 ,  G09G5/06 ,  G09G3/3216 ,  G09G3/3225

摘要： A method for driving an active matrix organic light-emitting diode (AMOLED) display. The method may be used to digitally drive the AMOLED display in a way that limits the susceptibility of the AMOLED display to certain problems arising out of digital driving techniques, such as image sticking or low display lifetimes. The method involves generating compensation factors corresponding to each pixel of the display and using those compensation factors to control the illumination of the display. The aspects of the method that incorporate the operation point for generating a compensation factor may also be applied to analog driving of AMOLED displays.