公开(公告)号：US20090153119A1

公开(公告)日：2009-06-18

申请号：US12336516

申请日：2008-12-16

Applicant: Severin TROCHUT ,  David CHESNEAU

Inventor： Severin TROCHUT ,  David CHESNEAU

IPC: G05F1/00

CPC classification number: H02M3/1588 ,  G01R19/0092 ,  H02M2001/0009 ,  Y02B70/1466

Abstract: An embodiment of a current sensing device for a DC-DC converter comprising an output node through which passes an output current and taken to an output potential equal respectively to first and second values. The current sensing device comprises an amplifying module comprising a retroaction node through which passes a mirror current that is proportional to the output current and taken to the potential present on a first input of the amplifying module. The device also comprises a first intermediate module mounted between the first potential and the output node, comprising an intermediate node connected to the first input and taken to an intermediate potential equal to third and fourth values respectively correlated to the first and second values, wherein the difference between the third and fourth values is smaller than the difference between the first and second values.

Abstract translation: 一种用于DC-DC转换器的电流感测装置的实施例，包括输出节点，通过该输出节点通过输出电流并获得分别等于第一和第二值的输出电位。 电流感测装置包括放大模块，该放大模块包括回溯节点，通过该放大模块通过与输出电流成比例的反射镜电流，并将其作用到存在于放大模块的第一输入端上的电位。 该装置还包括安装在第一电位和输出节点之间的第一中间模块，包括连接到第一输入端的中间节点，其中间电位等于分别与第一和第二值相关的第三和第四值，其中， 第三和第四值之间的差小于第一和第二值之间的差。

公开(公告)号：US20090167261A1

公开(公告)日：2009-07-02

申请号：US12336518

申请日：2008-12-16

Applicant: Severin TROCHUT

Inventor： Severin TROCHUT

IPC: G05F1/10 ,  G01R19/00

CPC classification number: H02M3/1588 ,  G01R19/0092 ,  H02M2001/0009 ,  Y02B70/1466

Abstract: An embodiment of a current measuring device, defined by a gain, including an amplification module including an input for receiving a control signal, an input connected to an output node, brought to an output potential and traversed by an output current, a feedback node traversed by a mirror current associated with the output current by a proportionality coefficient equal to the gain, and an output traversed by the mirror current, and capable of bringing the feedback node to the output potential in response to the control signal. The measuring device also includes a gain modification module, mounted between the first potential and the feedback node, including at least one input for receiving an activation signal, and capable of modifying the value of the gain in response to an activation signal.

Abstract translation: 由增益定义的电流测量装置的实施例，包括放大模块，该放大模块包括用于接收控制信号的输入，连接到输出节点的输入，输出到输出电位并被输出电流穿过;反馈节点 通过与输出电流相关联的镜像电流等于增益的比例系数，以及由镜电流穿过的输出，并且能够响应于控制信号使反馈节点进入输出电位。 测量装置还包括安装在第一电势和反馈节点之间的增益修改模块，包括用于接收激活信号的至少一个输入，并且能够响应于激活信号修改增益的值。