公开(公告)号：US08599570B2

公开(公告)日：2013-12-03

申请号：US13330538

申请日：2011-12-19

申请人： Jui-Lin Ke ,  Huai-Long Wang ,  Kai Zong ,  Jian Liu ,  Xiao-Lan Yan

发明人： Jui-Lin Ke ,  Huai-Long Wang ,  Kai Zong ,  Jian Liu ,  Xiao-Lan Yan

IPC分类号： H05K5/00 ,  A47G1/16 ,  A47G29/00

CPC分类号： F16M11/105 ,  F16M13/005

摘要： An electronic device includes a front frame, a back cover, a support stand rotatably connected to the back cover, a display panel and a circuit board. The display panel and the circuit board are fixed between the front frame and the back cover. The circuit board includes a first contact and a number of second contacts. The second contacts surround the first contact. The support includes a central shaft and a third contact. The central shaft is electrically connected to the first contact. The third contact rotates with the rotation of the central shaft to contact each of the second contacts. The circuit board includes a circuit and a processor. The electric circuit generates different signals when the first contact is connected different second contacts. The processor adjusts an orientation of display content on the display panel to rotate based on the signal.

摘要翻译： 电子设备包括前框架，后盖，可旋转地连接到后盖的支撑架，显示面板和电路板。 显示面板和电路板固定在前框架和后盖之间。 电路板包括第一触点和多个第二触点。 第二个触点围绕第一个触点。 支撑件包括中心轴和第三接触件。 中心轴电连接到第一触点。 第三接触件随着中心轴的旋转而旋转以接触每个第二接触件。 电路板包括电路和处理器。 当第一触点连接不同的第二触点时，电路产生不同的信号。 处理器根据信号调整显示面板上的显示内容的方向旋转。

公开(公告)号：US20070262753A1

公开(公告)日：2007-11-15

申请号：US11740283

申请日：2007-04-25

申请人： Sha-Sha Hu ,  Hai Lin ,  Huai-Long Wang ,  Shin-Hong Chung

发明人： Sha-Sha Hu ,  Hai Lin ,  Huai-Long Wang ,  Shin-Hong Chung

IPC分类号： G05F1/70

CPC分类号： H02M1/14

摘要： A switching power supply with output ripple suppression includes a rectification circuit, a filtering circuit, a PFC, a transformer, a voltage stabilization circuit and a DC/DC converting circuit with feedback control. The DC/DC converting circuit includes a switching circuit, a PWM generator and a feedback circuit. The feedback circuit receiving feedback signals reflects an actual output voltage of the switching power supply and transmits the feedback signals to the PWM generator. The PWM generator produces PWM waves to control an on-off time ratio of the switching circuit by comparing the feedback signals with a reference signal that reflects a desired output voltage of the switching power supply. The switching circuit in turn controls the actual output voltage of the switching power supply.

摘要翻译： 具有输出纹波抑制的开关电源包括整流电路，滤波电路，PFC，变压器，稳压电路和具有反馈控制的DC / DC转换电路。 DC / DC转换电路包括开关电路，PWM发生器和反馈电路。 接收反馈信号的反馈电路反映开关电源的实际输出电压，并将反馈信号发送到PWM发生器。 PWM发生器产生PWM波，以通过将反馈信号与反映开关电源的期望输出电压的参考信号进行比较来控制开关电路的开 - 关时间比。 开关电路又控制开关电源的实际输出电压。