公开(公告)号：US20140266126A1

公开(公告)日：2014-09-18

申请号：US13830047

申请日：2013-03-14

Applicant: CIRRUS LOGIC, INC.

Inventor： Dan Shen ,  Johann Gaboriau ,  Lingli Zhang ,  Christian Larsen

IPC: H02M1/08

CPC classification number: H02M1/08

Abstract: In accordance with embodiments of the present disclosure, systems and methods may include a switch coupled at its gate terminal to an input signal voltage, the input signal voltage for controlling a gate voltage of a gate terminal of a driver device coupled at its non-gate terminals between a rail voltage and an output node. The systems and methods may also include a diode having a first terminal and a second terminal, the diode coupled to a non-gate terminal of the switch such that when the switch is enabled, the first terminal is electrically coupled to the gate terminal of the driver device and the second terminal is electrically coupled to the output node.

Abstract translation: 根据本公开的实施例，系统和方法可以包括在其栅极端子处耦合到输入信号电压的开关，用于控制耦合在其非门的驱动器件的栅极端子的栅极电压的输入信号电压 轨道电压和输出节点之间的端子。 系统和方法还可以包括具有第一端子和第二端子的二极管，二极管耦合到开关的非栅极端子，使得当开关被使能时，第一端子电连接到开关的栅极端子 驱动器装置和第二端子电耦合到输出节点。

公开(公告)号：US09742399B2

公开(公告)日：2017-08-22

申请号：US14270319

申请日：2014-05-05

Applicant: Cirrus Logic, Inc.

Inventor： Dan Shen

IPC: H03F3/217 ,  H03K17/693 ,  H02J1/06 ,  H03K17/687 ,  H04R3/00 ,  H02J1/00

CPC classification number: H03K17/693 ,  H02J1/06 ,  H02J2001/008 ,  H03F3/217 ,  H03F3/2171 ,  H03K17/6872 ,  H04R3/00 ,  Y10T307/549

Abstract: Embodiments of apparatuses and methods for proportional feedback for reduced overshoot and undershoot in a switched output are described. An embodiment of an apparatus includes a switching output stage configured to receive an input signal and provide a responsive output signal. The apparatus may also include a pulling circuit coupled to one of the first switching device and the second switching device. The pulling circuit may pull a control voltage of power transistors in the switching output stage to reduce impedance of at least one of the transistors in response to a determination that the output signal at the common output node is outside of a predetermined range of a threshold value. Pulling strength may increase as a voltage difference between the output signal and one of the first supply voltage and the second supply voltage increases.

公开(公告)号：US20140266310A1

公开(公告)日：2014-09-18

申请号：US13829831

申请日：2013-03-14

Applicant: CIRRUS LOGIC, INC.

Inventor： Dan Shen ,  Lingli Zhang ,  Johann Gaboriau

IPC: H03K5/1534

CPC classification number: H03K17/133 ,  H02M2001/0009 ,  H03F3/2171

Abstract: In accordance with these and other embodiments of the present disclosure, an apparatus and a method may include receiving a first input configured to indicate an output voltage of an output node of a switched output stage comprising a pull-down driver device coupled at its non-gate terminals between a ground voltage and the output node and a pull-up driver device coupled at its non-gate terminals between a supply voltage and the output node. The method may also include receiving a second input configured to indicate a gate voltage of a gate terminal of a first one of the pull-up driver device and the pull-down driver device. The method may further include detecting direction of an output current flowing into or out of the output node based on the first input and the second input.

Abstract translation: 根据本公开的这些和其他实施例，装置和方法可以包括接收被配置为指示切换输出级的输出节点的输出电压的第一输入，包括在其非易失性存储器处耦合的下拉驱动器器件， 接地电压和输出节点之间的栅极端子和在其非栅极端子处在电源电压和输出节点之间耦合的上拉驱动器器件。 该方法还可以包括接收被配置为指示上拉驱动器器件和下拉驱动器器件中的第一个的栅极端子的栅极电压的第二输入。 该方法还可以包括基于第一输入和第二输入来检测流入或流出输出节点的输出电流的方向。