公开(公告)号：US20140049239A1

公开(公告)日：2014-02-20

申请号：US13935630

申请日：2013-07-05

Applicant: ST-Ericsson SA

Inventor： Benoît Labbe

IPC: H02M3/156

CPC classification number: H02M3/156 ,  H02M2001/0009 ,  H02M2001/0025

Abstract: A current-mode regulator relies on indirect current measurement to facilitate slope compensation used to stabilize the operation of a buck converter. The current-mode regulator comprises an inductor, a switching network, and a controller. The inductor delivers an output current to a load. The switching network selectively connects the inductor input to an input voltage or a second voltage. The regulator controls the switching network. An inner loop control circuit of the regulator comprises the switching network, a current measuring circuit, a slope circuit, a comparator, and a switching controller. The current measuring circuit comprises a passive network connected to the inductor input and operative to indicate an inductor current as a measurement voltage. The slope circuit applies a time-varying voltage having a positive slope to the measurement voltage. The comparator compares a slope compensated measurement voltage to the control voltage. The switching regulator controls the switching network in response to the output of the comparator.

Abstract translation: 电流模式调节器依靠间接电流测量来促进用于稳定降压转换器运行的斜率补偿。 电流模式调节器包括电感器，开关网络和控制器。 电感器将负载输出电流。 开关网络选择性地将电感器输入端连接到输入电压或第二电压。 调节器控制开关网络。 调节器的内环控制电路包括开关网络，电流测量电路，斜坡电路，比较器和开关控制器。 电流测量电路包括连接到电感器输入的无源网络，并且用于将电感器电流指示为测量电压。 斜率电路对测量电压施加具有正斜率的时变电压。 比较器将斜率补偿测量电压与控制电压进行比较。 开关稳压器响应于比较器的输出控制开关网络。

公开(公告)号：US08878509B2

公开(公告)日：2014-11-04

申请号：US13935630

申请日：2013-07-05

Applicant: ST-Ericsson SA

Inventor： Benoît Labbe

IPC: G05F1/40 ,  H02M3/156 ,  H02M1/00

CPC classification number: H02M3/156 ,  H02M2001/0009 ,  H02M2001/0025

Abstract: A current-mode regulator relies on indirect current measurement to facilitate slope compensation used to stabilize the operation of a buck converter. The current-mode regulator comprises an inductor, a switching network, and a controller. The inductor delivers an output current to a load. The switching network selectively connects the inductor input to an input voltage or a second voltage. The regulator controls the switching network. An inner loop control circuit of the regulator comprises the switching network, a current measuring circuit, a slope circuit, a comparator, and a switching controller. The current measuring circuit comprises a passive network connected to the inductor input and operative to indicate an inductor current as a measurement voltage. The slope circuit applies a time-varying voltage having a positive slope to the measurement voltage. The comparator compares a slope compensated measurement voltage to the control voltage. The switching regulator controls the switching network in response to the output of the comparator.

Abstract translation: 电流模式调节器依靠间接电流测量来促进用于稳定降压转换器运行的斜率补偿。 电流模式调节器包括电感器，开关网络和控制器。 电感器将负载输出电流。 开关网络选择性地将电感器输入端连接到输入电压或第二电压。 调节器控制开关网络。 调节器的内环控制电路包括开关网络，电流测量电路，斜坡电路，比较器和开关控制器。 电流测量电路包括连接到电感器输入的无源网络，并且用于将电感器电流指示为测量电压。 斜率电路对测量电压施加具有正斜率的时变电压。 比较器将斜率补偿测量电压与控制电压进行比较。 开关稳压器响应于比较器的输出控制开关网络。