公开(公告)号：US20160072380A1

公开(公告)日：2016-03-10

申请号：US14587813

申请日：2014-12-31

Applicant: Texas Instruments Incorporated

Inventor： Hakan Oner ,  Richard D. Nicholson

IPC: H02M3/07

CPC classification number: H02M3/073 ,  H02M2003/077

Abstract: A regulated charge pump power supply is implemented with a QP regulation loop providing QP clocking to control pumping operation based on sensing output voltage using residual charge on a flying capacitor Cfly. Cfly is used not only in normal charge pumping operation as an active charge shuttle element, but also to determine/measure output voltage VOUT. Voltage sensing using measured residual charge on Cfly is accomplished by introducing a sample phase into the normal charge pumping operation—after the pump phase and before the charge phase. In the sample phase, VOUT is determined (sampled) based on the residual charge on Cfly corresponding to (Vsense=VOUT−VIN). During the sample phase, the Cfly bottom plate is connected to ground, and the Cfly top plate is sampled (such as with a sense capacitor), with the sample phase completed prior to initiating a charge phase (by connecting the Cfly top plate to VIN).

Abstract translation: 调节的电荷泵电源通过QP调节环路实现，QP调节环路提供QP时钟，以基于使用飞行电容器Cfly上的剩余电荷的感测输出电压来控制泵浦操作。 Cfly不仅在正常的电荷泵送操作中用作有源电荷穿梭元件，还用于确定/测量输出电压VOUT。 使用Cfly上测量的残余电荷的电压感测是通过将样品相引入正常的电荷泵送操作（在泵相之后和充电阶段之前）来实现的。 在采样阶段，基于对应于（Vsense = VOUT-VIN）的Cfly上的剩余电荷确定VOUT（采样）。 在样品阶段，Cfly底板连接到地面，Cfly顶板采样（例如使用感应电容），样品相在开始充电阶段之前完成（通过将Cfly顶板连接到VIN ）。

公开(公告)号：US09281743B1

公开(公告)日：2016-03-08

申请号：US14587813

申请日：2014-12-31

Applicant: Texas Instruments Incorporated

Inventor： Hakan Oner ,  Richard D. Nicholson

IPC: H02M3/07

CPC classification number: H02M3/073 ,  H02M2003/077

Abstract: A regulated charge pump power supply is implemented with a QP regulation loop providing QP clocking to control pumping operation based on sensing output voltage using residual charge on a flying capacitor Cfly. Cfly is used not only in normal charge pumping operation as an active charge shuttle element, but also to determine/measure output voltage VOUT. Voltage sensing using measured residual charge on Cfly is accomplished by introducing a sample phase into the normal charge pumping operation—after the pump phase and before the charge phase. In the sample phase, VOUT is determined (sampled) based on the residual charge on Cfly corresponding to (Vsense=VOUT−VIN). During the sample phase, the Cfly bottom plate is connected to ground, and the Cfly top plate is sampled (such as with a sense capacitor), with the sample phase completed prior to initiating a charge phase (by connecting the Cfly top plate to VIN).

Abstract translation: 调节的电荷泵电源通过QP调节环路实现，QP调节环路提供QP时钟，以基于使用飞行电容器Cfly上的剩余电荷的感测输出电压来控制泵浦操作。 Cfly不仅在正常的电荷泵送操作中用作有源电荷穿梭元件，还用于确定/测量输出电压VOUT。 使用Cfly上测量的残余电荷的电压感测是通过将样品相引入正常的电荷泵送操作（在泵相之后和充电阶段之前）来实现的。 在采样阶段，基于对应于（Vsense = VOUT-VIN）的Cfly上的剩余电荷确定VOUT（采样）。 在样品阶段，Cfly底板连接到地面，Cfly顶板采样（例如使用感应电容），样品相在开始充电阶段前完成（通过将Cfly顶板连接到VIN ）。