DC-DC CONVERTER CURRENT SENSING
    12.
    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
    13.
    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。

    Selectable PA bias temperature compensation circuitry
    14.
    发明授权
    Selectable PA bias temperature compensation circuitry 有权
    可选PA偏置温度补偿电路

    公开(公告)号:US08983407B2

    公开(公告)日:2015-03-17

    申请号:US13288318

    申请日:2011-11-03

    Abstract: Radio frequency (RF) power amplifier (PA) circuitry, which transmits RF signals is disclosed. The RF PA circuitry includes a final stage, a final stage current digital-to-analog converter (IDAC), and a final stage temperature compensation circuit. A final stage current reference circuit may provide an uncompensated final stage reference current to the final stage temperature compensation circuit, which receives and temperature compensates the uncompensated final stage reference current to provide a final stage reference current. The final stage IDAC uses the final stage reference current in a digital-to-analog conversion to provide a final stage bias signal to bias the final stage. The temperature compensation provided by the final stage temperature compensation circuit is selectable.

    Abstract translation: 公开了发射RF信号的射频(RF)功率放大器(PA)电路。 RF PA电路包括最后级,最后一级电流数模转换器(IDAC)和最终级温度补偿电路。 最终级电流参考电路可以向最终级温度补偿电路提供未补偿的最终级参考电流,其接收和温度补偿未补偿的最终级参考电流以提供最终级参考电流。 最终阶段IDAC在数模转换中使用最后阶段参考电流,以提供最终阶段偏置信号来偏向最后阶段。 由最终级温度补偿电路提供的温度补偿是可选择的。

    DC-DC converter current sensing
    16.
    发明授权
    DC-DC converter current sensing 有权
    DC-DC转换器电流检测

    公开(公告)号:US08571492B2

    公开(公告)日:2013-10-29

    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,以提供基于对输出电流的输出电流的估计的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。

    CONFIGURABLE 2-WIRE/3-WIRE SERIAL COMMUNICATIONS INTERFACE
    19.
    发明申请
    CONFIGURABLE 2-WIRE/3-WIRE SERIAL COMMUNICATIONS INTERFACE 有权
    可配置2线/ 3线串行通信接口

    公开(公告)号:US20120117284A1

    公开(公告)日:2012-05-10

    申请号:US13289302

    申请日:2011-11-04

    CPC classification number: G06F13/42 G06F13/4291 Y02D10/14 Y02D10/151

    Abstract: A configurable 2-wire/3-wire serial communications interface (C23SCI), which includes start-of-sequence (SOS) detection circuitry and sequence processing circuitry, is disclosed. When the SOS detection circuitry is coupled to a 2-wire serial communications bus, the SOS detection circuitry detects an SOS of a received sequence based on a serial data signal and a serial clock signal. When the SOS detection circuitry is coupled to a 3-wire serial communications bus, the SOS detection circuitry detects the SOS of the received sequence based on a chip select (CS) signal. In response to detecting the SOS, the SOS detection circuitry provides an SOS detection signal to the sequence processing circuitry, which initiates processing of the received sequence using the serial data signal and the serial clock signal. The received sequence is associated with one of multiple serial communications protocols.

    Abstract translation: 公开了一种可配置的2线/ 3线串行通信接口(C23SCI),其包括序列启动(SOS)检测电路和序列处理电路。 当SOS检测电路耦合到2线串行通信总线时,SOS检测电路基于串行数据信号和串行时钟信号检测接收序列的SOS。 当SOS检测电路耦合到3线串行通信总线时,SOS检测电路基于芯片选择(CS)信号检测接收到的序列的SOS。 响应于检测到SOS,SOS检测电路向序列处理电路提供SOS检测信号,其使用串行数据信号和串行时钟信号来启动接收到的序列的处理。 所接收的序列与多个串行通信协议之一相关联。

    SELECTABLE PA BIAS TEMPERATURE COMPENSATION CIRCUITRY
    20.
    发明申请
    SELECTABLE PA BIAS TEMPERATURE COMPENSATION CIRCUITRY 有权
    可选PA偏置温度补偿电路

    公开(公告)号:US20120052825A1

    公开(公告)日:2012-03-01

    申请号:US13288318

    申请日:2011-11-03

    Abstract: Radio frequency (RF) power amplifier (PA) circuitry, which transmits RF signals is disclosed. The RF PA circuitry includes a final stage, a final stage current digital-to-analog converter (IDAC), and a final stage temperature compensation circuit. A final stage current reference circuit may provide an uncompensated final stage reference current to the final stage temperature compensation circuit, which receives and temperature compensates the uncompensated final stage reference current to provide a final stage reference current. The final stage IDAC uses the final stage reference current in a digital-to-analog conversion to provide a final stage bias signal to bias the final stage. The temperature compensation provided by the final stage temperature compensation circuit is selectable.

    Abstract translation: 公开了发射RF信号的射频(RF)功率放大器(PA)电路。 RF PA电路包括最后级,最后一级电流数模转换器(IDAC)和最终级温度补偿电路。 最终级电流参考电路可以向最终级温度补偿电路提供未补偿的最终级参考电流,其接收和温度补偿未补偿的最终级参考电流以提供最终级参考电流。 最终阶段IDAC在数模转换中使用最后阶段参考电流,以提供最终阶段偏置信号来偏向最后阶段。 由最终级温度补偿电路提供的温度补偿是可选择的。

Patent Agency Ranking