POWER SOURCE SWITCHING CIRCUIT
    2.
    发明申请
    POWER SOURCE SWITCHING CIRCUIT 有权
    电源切换电路

    公开(公告)号:US20100231048A1

    公开(公告)日:2010-09-16

    申请号:US12477768

    申请日:2009-06-03

    IPC分类号: H02J9/06

    摘要: A power source switching circuit includes a main source input terminal, an auxiliary source input terminal, a control circuit, a first switch, a second switch, and an output terminal. The control circuit is connected to the main source input terminal and the auxiliary source input terminal. The first switch is connected to the main source input terminal and the control circuit. The second switch is connected to the auxiliary source input terminal and the control circuit. The output terminal is connected to the first switch and the second switch. When the main source input terminal is at high level, the auxiliary source input terminal remains high level, the first switch is turned on, and the second switch is turned off by the control circuit.

    摘要翻译: 电源切换电路包括主源输入端子,辅助源极输入端子,控制电路,第一开关,第二开关和输出端子。 控制电路连接到主源输入端子和辅助源输入端子。 第一个开关连接到主源输入端子和控制电路。 第二开关连接到辅助源输入端子和控制电路。 输出端子连接到第一开关和第二开关。 当主源输入端子处于高电平时,辅助电源输入端保持高电平,第一开关导通,第二开关由控制电路断开。

    SYSTEM FOR TESTING POWER SUPPLY UNIT
    3.
    发明申请
    SYSTEM FOR TESTING POWER SUPPLY UNIT 失效
    用于测试电源单元的系统

    公开(公告)号:US20100315749A1

    公开(公告)日:2010-12-16

    申请号:US12557531

    申请日:2009-09-11

    IPC分类号: H02H3/20

    CPC分类号: G01R31/40

    摘要: A system for testing a power supply unit includes a test sub-system and a test control sub-system connected to the test sub-system and the power supply unit. The test sub-system perform tests and record the results. The test control sub-system is capable of selecting test items to test the power supply unit and setting an execution sequence of the test items. The test items includes a standby test item for testing the power supply unit at a standby state, a normal test item for testing the power supply unit at a normal state, and an over temperature protection test item for testing the power supply unit at an over heated state. The test control sub-system is further capable of automatically switching the standby test item to the normal test item, and switching the normal test item to the over temperature protection test item.

    摘要翻译: 用于测试电源单元的系统包括连接到测试子系统和电源单元的测试子系统和测试控制子系统。 测试子系统执行测试并记录结果。 测试控制子系统能够选择测试项目来测试电源单元并设置测试项目的执行顺序。 测试项目包括用于在待机状态下测试电源单元的待机测试项目,用于在正常状态下测试电源单元的正常测试项目以及用于在过电压单元上测试电源单元的过温保护测试项目 加热状态。 测试控制子系统还能够将待机测试项目自动切换到正常测试项目,并将正常测试项目切换到过温保护测试项目。

    SYSTEM FOR MEASURING FAN ROTATIONAL SPEED
    4.
    发明申请
    SYSTEM FOR MEASURING FAN ROTATIONAL SPEED 失效
    用于测量风扇转速的系统

    公开(公告)号:US20110001443A1

    公开(公告)日:2011-01-06

    申请号:US12565773

    申请日:2009-09-24

    IPC分类号: H02K29/10 H02P7/28

    CPC分类号: G01P3/48 G01P3/486

    摘要: A system is used to measure a fan rotational speed. The system includes a main controller, a first socket coupled to the linear fan, a second socket connected to the main controller, and an optical fiber amplifier connected to the main controller. A PWM (pulse width module) fan is coupled to the second socket, the PWM fan sends a first rotational speed signal, which represent a rotation speed of the PWM fan, to the main controller via the second socket. The optical fiber amplifier is capable of radiating light on fan blades of the linear fan, and sensing light reflected by the fan blades to count a rotational speed of the linear fan, and generating a second rotational speed signal which represents a rotational speed of the linear fan. The optical fiber amplifier sends the second rotational speed signal to the main controller.

    摘要翻译: 系统用于测量风扇转速。 该系统包括主控制器,耦合到线性风扇的第一插座,连接到主控制器的第二插座和连接到主控制器的光纤放大器。 PWM(脉冲宽度模块)风扇耦合到第二个插座,PWM风扇通过第二个插座将一个表示PWM风扇的转速的第一转速信号发送到主控制器。 光纤放大器能够在线性风扇的风扇叶片上照射光,并且感测由风扇叶片反射的光以对线性风扇的转速进行计数,并产生代表线性风扇的转速的第二转速信号 风扇。 光纤放大器将第二转速信号发送到主控制器。

    STEREO PROJECTION OPTICAL SYSTEM
    5.
    发明申请
    STEREO PROJECTION OPTICAL SYSTEM 失效
    立体投影光学系统

    公开(公告)号:US20090079885A1

    公开(公告)日:2009-03-26

    申请号:US11952982

    申请日:2007-12-07

    IPC分类号: H04N5/74

    摘要: A stereo projection optical system includes an image engine configured for providing light superimposed spatial information, a color selector positioned to receive a light output of the image engine, a transmission-type light modulator positioned to receive an emergent light of the color selector. The color selector is configured for selectively modifying the polarization of the light output according to the wavelength of the light output. The transmission-type light modulator alternates between a dark state and a bright state. From the foregoing, it will be apparent that the stereo projection optical system according to the present invention provides advantages in that its structure can be simplified with the reduction of its size by synthesizing lift and right image signals by displaying the stereoscopic image signal using a single projector.

    摘要翻译: 立体投影光学系统包括被配置为提供光叠加的空间信息的图像引擎,定位成接收图像引擎的光输出的颜色选择器,定位成接收颜色选择器的出射光的透射型光调制器。 颜色选择器被配置为根据光输出的波长选择性地修改光输出的偏振。 透射型光调制器在暗状态和亮状态之间交替。 从上述可以看出,根据本发明的立体投影光学系统提供的优点在于,通过使用单个图像显示立体图像信号,通过合成升高和右图像信号可以简化其结构, 投影机。