DC-DC converter current sensing
    7.
    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

    摘要: 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.

    摘要翻译: 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。

    DC-DC CONVERTER CURRENT SENSING
    8.
    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

    IPC分类号: G11C27/02

    摘要: 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.

    摘要翻译: 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。

    LOOK-UP TABLE BASED CONFIGURATION OF A DC-DC CONVERTER
    9.
    发明申请
    LOOK-UP TABLE BASED CONFIGURATION OF A DC-DC CONVERTER 有权
    DC-DC转换器的基于表的配置

    公开(公告)号:US20120043956A1

    公开(公告)日:2012-02-23

    申请号:US13287672

    申请日:2011-11-02

    IPC分类号: G05F5/00

    CPC分类号: H02M3/157

    摘要: RF PA circuitry and a DC-DC converter, which includes an RF PA envelope power supply and DC-DC control circuitry, are disclosed. The PA envelope power supply provides an envelope power supply signal to the RF PA circuitry. The DC-DC control circuitry has a DC-DC look-up table (LUT) structure, which has at least a first DC-DC LUT. The DC-DC control circuitry uses DC-DC LUT index information as an index to the DC-DC LUT structure to obtain DC-DC converter operational control parameters. The DC-DC control circuitry then configures the PA envelope power supply using the DC-DC converter operational control parameters. Using the DC-DC LUT structure provides flexibility in configuring the DC-DC converter for different applications, for multiple static operating conditions, for multiple dynamic operating conditions, or any combination thereof.

    摘要翻译: 公开了RF PA电路和DC-DC转换器,其包括RF PA包络电源和DC-DC控制电路。 PA封装电源为RF PA电路提供信号电源信号。 DC-DC控制电路具有至少具有第一DC-DC LUT的DC-DC查找表(LUT)结构。 DC-DC控制电路使用DC-DC LUT索引信息作为DC-DC LUT结构的索引,以获得DC-DC转换器的操作控制参数。 DC-DC控制电路然后使用DC-DC转换器的操作控制参数配置PA封装电源。 使用DC-DC LUT结构为多种静态工作条件,多种动态工作条件或其任何组合提供了灵活的配置,适用于不同应用的DC-DC转换器。