SYSTEMS AND METHODS FOR LOW-BATTERY OPERATION CONTROL IN PORTABLE COMMUNICATION DEVICES
    1.
    发明申请
    SYSTEMS AND METHODS FOR LOW-BATTERY OPERATION CONTROL IN PORTABLE COMMUNICATION DEVICES 审中-公开
    便携式通信设备中低电压操作控制的系统和方法

    公开(公告)号:US20120194150A1

    公开(公告)日:2012-08-02

    申请号:US13018788

    申请日:2011-02-01

    IPC分类号: G05F1/575

    CPC分类号: G06F1/26 H04W52/0261

    摘要: Systems and methods may include a low-dropout (LDO) voltage regulator for portable communication devices. The systems and methods may include a comparator having first and second inputs and generating a control voltage, the first input receiving a battery voltage from a battery source, the second input receiving a fixed voltage independent from the battery voltage, and a power management circuit that receives the control voltage and provides a regulated voltage based upon the control voltage, wherein when the received battery voltage is above the fixed voltage, the control voltage is provided at a high constant voltage, thereby resulting in the regulated voltage being at a first voltage, and wherein when the battery voltage is below the fixed voltage, the control voltage is provided at a low constant voltage, thereby resulting in the regulated voltage being at a second voltage less than the first voltage.

    摘要翻译: 系统和方法可以包括用于便携式通信设备的低压差(LDO)电压调节器。 该系统和方法可以包括具有第一和第二输入并产生控制电压的比较器,第一输入从电池源接收电池电压,第二输入接收独立于电池电压的固定电压,以及功率管理电路, 接收控制电压并根据控制电压提供调节电压,其中当接收的电池电压高于固定电压时,以高的恒定电压提供控制电压,由此导致调节电压处于第一电压, 并且其中当所述电池电压低于所述固定电压时,所述控制电压以低的恒定电压被提供,从而导致所述调节电压处于小于所述第一电压的第二电压。

    Overlapping compact multiple transformers
    2.
    发明授权
    Overlapping compact multiple transformers 有权
    重叠紧凑型多变压器

    公开(公告)号:US08044759B2

    公开(公告)日:2011-10-25

    申请号:US12902940

    申请日:2010-10-12

    IPC分类号: H01F5/00

    摘要: Systems and methods are provided for overlapping compact multiple transformers. The systems and methods may include a first transformer section that includes a first primary winding section and a first secondary winding, where the first primary winding section is inductively coupled to the first secondary winding, where the first transformer section is associated with a first rotational current flow direction in the first primary winding section; and a second transformer section that includes a second primary winding section and a second secondary winding, where the second primary winding section is inductively coupled to the second secondary winding, wherein the second transformer section is associated with a second rotational current flow direction in the second primary winding section, where a first portion of the first primary winding section is adjacent to a second portion of the second primary winding section, where the adjacent first and second portions include a substantially same first linear current flow direction.

    摘要翻译: 提供了用于重叠紧凑型多变压器的系统和方法。 系统和方法可以包括第一变压器部分,其包括第一初级绕组部分和第一次级绕组,其中第一初级绕组部分感应耦合到第一次级绕组,其中第一变压器部分与第一转子电流相关联 第一初级绕组段中的流动方向; 以及第二变压器部分,其包括第二初级绕组部分和第二次级绕组,其中所述第二初级绕组部分感应耦合到所述第二次级绕组,其中所述第二变压器部分与所述第二转子部分中的第二转动电流流动方向相关联, 初级绕组部分,其中第一初级绕组部分的第一部分与第二初级绕组部分的第二部分相邻,其中相邻的第一和第二部分包括基本相同的第一线性电流流动方向。

    OVERLAPPING COMPACT MULTIPLE TRANSFORMERS
    3.
    发明申请
    OVERLAPPING COMPACT MULTIPLE TRANSFORMERS 有权
    重叠多功能变压器

    公开(公告)号:US20110043316A1

    公开(公告)日:2011-02-24

    申请号:US12902940

    申请日:2010-10-12

    IPC分类号: H01F27/29 H01F27/28

    摘要: Systems and methods are provided for overlapping compact multiple transformers. The systems and methods may include a first transformer section that includes a first primary winding section and a first secondary winding, where the first primary winding section is inductively coupled to the first secondary winding, where the first transformer section is associated with a first rotational current flow direction in the first primary winding section; and a second transformer section that includes a second primary winding section and a second secondary winding, where the second primary winding section is inductively coupled to the second secondary winding, wherein the second transformer section is associated with a second rotational current flow direction in the second primary winding section, where a first portion of the first primary winding section is adjacent to a second portion of the second primary winding section, where the adjacent first and second portions include a substantially same first linear current flow direction.

    摘要翻译: 提供了用于重叠紧凑型多变压器的系统和方法。 系统和方法可以包括第一变压器部分,其包括第一初级绕组部分和第一次级绕组,其中第一初级绕组部分感应耦合到第一次级绕组,其中第一变压器部分与第一转子电流相关联 第一初级绕组段中的流动方向; 以及第二变压器部分,其包括第二初级绕组部分和第二次级绕组,其中所述第二初级绕组部分感应耦合到所述第二次级绕组,其中所述第二变压器部分与所述第二转子部分中的第二转动电流流动方向相关联, 初级绕组部分,其中第一初级绕组部分的第一部分与第二初级绕组部分的第二部分相邻,其中相邻的第一和第二部分包括基本相同的第一线性电流流动方向。

    Systems and methods for adaptive bias circuits for a power amplifier
    4.
    发明授权
    Systems and methods for adaptive bias circuits for a power amplifier 有权
    用于功率放大器的自适应偏置电路的系统和方法

    公开(公告)号:US08378749B1

    公开(公告)日:2013-02-19

    申请号:US13194270

    申请日:2011-07-29

    IPC分类号: H03F3/45

    摘要: Systems and methods may include an amplifier having at least a first input port, where the amplifier includes a first capacitance associated with the first input port; a first bias circuit, where the first bias circuit comprises a series connection of a first charging circuit and a first discharging circuit, wherein a first node between the first charging circuit and the first discharging circuit is connected to the first input port, wherein responsive to an RF input signal having at least a first predetermined level being received at the first input port, the first charging circuit charges the first capacitance associated with the first input port during a first portion of a cycle of the RF input signal, and discharges the first capacitance associated with the first input port during a second portion of the cycle, thereby controlling a DC bias voltage level available at the first input port.

    摘要翻译: 系统和方法可以包括具有至少第一输入端口的放大器,其中放大器包括与第一输入端口相关联的第一电容; 第一偏置电路,其中第一偏置电路包括第一充电电路和第一放电电路的串联连接,其中第一充电电路和第一放电电路之间的第一节点连接到第一输入端口,其中响应于 在第一输入端口处接收至少具有第一预定电平的RF输入信号,第一充电电路在RF输入信号的周期的第一部分期间对与第一输入端口相关联的第一电容充电,并且将第一 在周期的第二部分期间与第一输入端口相关联的电容,从而控制在第一输入端口处可用的DC偏置电压电平。

    SYSTEMS AND METHODS FOR ADAPTIVE BIAS CIRCUITS FOR A POWER AMPLIFIER
    5.
    发明申请
    SYSTEMS AND METHODS FOR ADAPTIVE BIAS CIRCUITS FOR A POWER AMPLIFIER 有权
    用于功率放大器的自适应偏置电路的系统和方法

    公开(公告)号:US20130027135A1

    公开(公告)日:2013-01-31

    申请号:US13194270

    申请日:2011-07-29

    IPC分类号: H03F3/04 H03F3/45

    摘要: Systems and methods may include an amplifier having at least a first input port, where the amplifier includes a first capacitance associated with the first input port; a first bias circuit, where the first bias circuit comprises a series connection of a first charging circuit and a first discharging circuit, wherein a first node between the first charging circuit and the first discharging circuit is connected to the first input port, wherein responsive to an RF input signal having at least a first predetermined level being received at the first input port, the first charging circuit charges the first capacitance associated with the first input port during a first portion of a cycle of the RF input signal, and discharges the first capacitance associated with the first input port during a second portion of the cycle, thereby controlling a DC bias voltage level available at the first input port.

    摘要翻译: 系统和方法可以包括具有至少第一输入端口的放大器,其中放大器包括与第一输入端口相关联的第一电容; 第一偏置电路,其中第一偏置电路包括第一充电电路和第一放电电路的串联连接,其中第一充电电路和第一放电电路之间的第一节点连接到第一输入端口,其中响应于 在第一输入端口处接收至少具有第一预定电平的RF输入信号,第一充电电路在RF输入信号的周期的第一部分期间对与第一输入端口相关联的第一电容充电,并且将第一 在周期的第二部分期间与第一输入端口相关联的电容,从而控制在第一输入端口处可用的DC偏置电压电平。