Hybrid control circuit and method
    4.
    发明授权
    Hybrid control circuit and method 有权
    混合控制电路及方法

    公开(公告)号:US08030911B2

    公开(公告)日:2011-10-04

    申请号:US12721853

    申请日:2010-03-11

    IPC分类号: G05F1/00

    摘要: A hybrid control circuit and method combine analog circuit and digital circuit to generate digital PWM signals for a multiphase DC-DC converter to generate an output voltage. For current balance control, analog current error signals are generated by the analog circuit from analog phase current signals of the multiphase DC-DC converter and then converted into digital current error signals for calculating the duties of each phase of the multiphase DC-DC converter. Therefore, fewer bit devices can be used to achieve precise current balance control and the size and cost of the circuit can be reduced.

    摘要翻译: 混合控制电路和方法组合模拟电路和数字电路以产生用于多相DC-DC转换器的数字PWM信号以产生输出电压。 对于电流平衡控制,模拟电流误差信号由多相DC-DC转换器的模拟相电流信号由模拟电路产生,然后转换为数字电流误差信号,用于计算多相DC-DC转换器各相的占空比。 因此,可以使用较少的位器件来实现精确的电流平衡控制,并且可以减小电路的尺寸和成本。

    HYBRID CONTROL CIRCUIT AND METHOD
    5.
    发明申请
    HYBRID CONTROL CIRCUIT AND METHOD 有权
    混合控制电路和方法

    公开(公告)号:US20100238060A1

    公开(公告)日:2010-09-23

    申请号:US12721853

    申请日:2010-03-11

    IPC分类号: H03M1/12

    摘要: A hybrid control circuit and method combine analog circuit and digital circuit to generate digital PWM signals for a multiphase DC-DC converter to generate an output voltage. For current balance control, analog current error signals are generated by the analog circuit from analog phase current signals of the multiphase DC-DC converter and then converted into digital current error signals for calculating the duties of each phase of the multiphase DC-DC converter. Therefore, fewer bit devices can be used to achieve precise current balance control and the size and cost of the circuit can be reduced.

    摘要翻译: 混合控制电路和方法组合模拟电路和数字电路以产生用于多相DC-DC转换器的数字PWM信号以产生输出电压。 对于电流平衡控制,模拟电流误差信号由多相DC-DC转换器的模拟相电流信号由模拟电路产生,然后转换为数字电流误差信号,用于计算多相DC-DC转换器各相的占空比。 因此,可以使用较少的位器件来实现精确的电流平衡控制,并且可以减小电路的尺寸和成本。

    Control circuit and method for a digital synchronous switching converter
    7.
    发明授权
    Control circuit and method for a digital synchronous switching converter 有权
    数字同步开关变换器的控制电路及方法

    公开(公告)号:US08436594B2

    公开(公告)日:2013-05-07

    申请号:US12654318

    申请日:2009-12-17

    IPC分类号: G05F1/59

    CPC分类号: H02M1/38

    摘要: In addition to an output voltage control loop, a dead-time optimization loop is provided for a digital synchronous switching converter to dynamically adjust the dead-time for the power switches of the converter. It is extracted a minimal feedback signal at a steady state while the output voltage remains under a specification, and a maximal efficiency of the digital synchronous switching converter is thus obtained.

    摘要翻译: 除了输出电压控制回路之外,为数字同步开关转换器提供死区时间优化环路,以动态调整转换器电源开关的死区时间。 在稳定状态下提取最小反馈信号,同时输出电压保持在规定之下,从而获得数字同步开关转换器的最大效率。

    Sound insulating device
    9.
    发明授权
    Sound insulating device 失效
    隔音装置

    公开(公告)号:US08144885B2

    公开(公告)日:2012-03-27

    申请号:US12394236

    申请日:2009-02-27

    申请人: Chiang-Fu Pan

    发明人: Chiang-Fu Pan

    IPC分类号: H04R29/00

    CPC分类号: H04R29/001

    摘要: A sound insulating device used to carry out audio testing of a mobile phone is provided. The sound insulating device includes a sound speaker, a sound receiver, a clamping platform clamping the mobile phone thereon and a sound insulating chamber. The sound insulating chamber receives the sound speaker and the sound receiver and the clamping platform therein. The sound insulating chamber is enclosed by several sound insulating boards. Each sound insulating board includes a sound absorbing layer, a cushion layer and an aluminium-alloy layer combined together. The cushion layer is sandwiched between the absorbing layer and the aluminium-alloy layer.

    摘要翻译: 提供了用于执行移动电话的音频测试的隔音装置。 隔音装置包括扬声器,声音接收器,夹持移动电话的夹紧平台和隔音室。 隔音室接收声音扬声器,声音接收器和夹紧平台。 隔音室由几个隔音板包围。 每个隔音板包括吸音层,缓冲层和组合在一起的铝合金层。 缓冲层夹在吸收层和铝合金层之间。

    Testing apparatus for touch screen
    10.
    发明授权
    Testing apparatus for touch screen 失效
    触摸屏测试仪

    公开(公告)号:US08061223B2

    公开(公告)日:2011-11-22

    申请号:US12235712

    申请日:2008-09-23

    申请人: Chiang-Fu Pan

    发明人: Chiang-Fu Pan

    IPC分类号: G01M7/00

    CPC分类号: G06F3/041 G01R31/28

    摘要: A testing apparatus (100) for testing a touch screen used in an electronic device is described. The testing apparatus includes a base (20), a testing device (13), a holding mechanism (10), and a control module (12). The testing device includes a testing platform (131) carrying the touch screen, a positioning board (133) and testing members (135) positioned on the positioning board. The holding mechanism is operatable to hold the touch screen on the testing platform during the testing members testing the touch screen. The control module can control the testing members to test the touch screen.

    摘要翻译: 描述了用于测试在电子设备中使用的触摸屏的测试设备(100)。 测试装置包括基座(20),测试装置(13),保持机构(10)和控制模块(12)。 测试装置包括承载触摸屏的测试平台(131),定位板(133)和位于定位板上的测试构件(135)。 保持机构可以在测试成员测试触摸屏期间将触摸屏保持在测试平台上。 控制模块可以控制测试成员来测试触摸屏。