DC-DC CONVERTER CURRENT SENSING
    26.
    发明申请
    DC-DC CONVERTER CURRENT SENSING 有权
    DC-DC转换器电流传感器

    公开(公告)号:US20120049894A1

    公开(公告)日:2012-03-01

    申请号:US13289134

    申请日:2011-11-04

    CPC classification number: G11C27/024 G11C27/026 H02M2001/0009

    Abstract: A sample-and-hold (SAH) current estimating circuit and a first switching power supply are disclosed. The first switching power supply provides a first switching power supply output signal based on a series switching element and a setpoint. The SAH current estimating circuit samples a voltage across the series switching element of the first switching power supply during an ON state of the series switching element and during a ramping signal peak to provide an SAH output signal based on an estimate of an output current of the first switching power supply output signal. The first switching power supply selects the ON state of the series switching element, such that during the ramping signal peak, the series switching element has a series current having a magnitude, which is about equal to a magnitude of the output current of the first switching power supply output signal.

    Abstract translation: 公开了采样保持(SAH)电流估计电路和第一开关电源。 第一开关电源基于串联开关元件和设定点提供第一开关电源输出信号。 SAH电流估计电路在串联开关元件的导通状态期间和在斜坡信号峰值期间对第一开关电源的串联开关元件两端的电压进行采样,以基于对输出电流的输出电流的估计提供SAH输出信号 第一开关电源输出信号。 第一开关电源选择串联开关元件的导通状态,使得在斜坡信号峰值期间,串联开关元件具有串联电流,其大小等于第一开关的输出电流的幅度 电源输出信号。

    Telephone switching mechanism
    27.
    发明授权
    Telephone switching mechanism 失效
    电话切换机制

    公开(公告)号:US5956398A

    公开(公告)日:1999-09-21

    申请号:US893816

    申请日:1997-07-11

    CPC classification number: H01H3/162 H04M1/0214 H04M1/0216 H04M1/0245

    Abstract: An electromechanical circuit uses a plunger to open and close a circuit as an indication of the position of a flip portion of a mobile communication device. The plunger includes an electrically conductive portion which slidingly contacts a contact pad. Upon contacting the contact pad, a change in logic states occurs which triggers circuitry to activate or de-activate the internal electronics within the communication device. This allows a user, for example, to activate a phone to receive a call without having to depress a specified switch. A common cam-follower mechanical configuration is used to cause the plunger to translate axially as the flip portion is moved.

    Abstract translation: 机电电路使用柱塞来打开和关闭电路作为移动通信设备的翻盖部分的位置的指示。 柱塞包括滑动地接触接触垫的导电部分。 在接触触点板时,发生逻辑状态的改变,其触发电路来激活或去激活通信设备内的内部电子设备。 这允许用户例如激活电话接收呼叫而不必按下指定的交换机。 当翻转部分移动时,常用的凸轮从动件的机械结构用于使柱塞轴向平移。

Patent Agency Ranking