公开(公告)号：US20160380534A1

公开(公告)日：2016-12-29

申请号：US15180238

申请日：2016-06-13

Applicant: NXP B.V.

Inventor： Jitendra Prabhakar Harshey ,  Ramesh Karpur ,  Pankaj Agrawal

IPC: H02M3/157 ,  H02M1/08

CPC classification number: H02M3/157 ,  H02M1/08 ,  H02M3/158 ,  H02M2001/0006 ,  H02M2001/0009 ,  H02M2001/0032 ,  Y02B70/16

Abstract: A buck converter is described having a buck converter output for outputting an output supply voltage; a first power supply domain operably coupled to a power source; a second power supply domain; a power supply controller coupled to the first power supply domain, the second power supply domain and the buck converter output; wherein the power supply controller is configured to supply power to the second power supply domain from the first power supply domain or the buck converter output, in dependence of the buck converter output supply voltage. Changing the current supplied to the second power supply domain to the buck converter output may reduce the quiescent current consumption from a battery power source, prolonging battery life.

Abstract translation: 描述具有用于输出输出电源电压的降压转换器输出的降压转换器; 可操作地耦合到电源的第一电源域; 第二电源领域; 耦合到第一电源域的电源控制器，第二电源域和降压转换器输出; 其中所述电源控制器被配置为根据所述降压转换器输出电源电压从所述第一电源域或所述降压转换器输出向所述第二电源域供电。 将提供给第二电源域的电流更改为降压转换器输出可能会降低电池电源的静态电流消耗，延长电池寿命。

公开(公告)号：US09837897B2

公开(公告)日：2017-12-05

申请号：US15180238

申请日：2016-06-13

Applicant: NXP B.V.

Inventor： Jitendra Prabhakar Harshey ,  Ramesh Karpur ,  Pankaj Agrawal

IPC: H02M3/15 ,  H02M3/157 ,  H02M1/08 ,  H02M3/158 ,  H02M1/00

CPC classification number: H02M3/157 ,  H02M1/08 ,  H02M3/158 ,  H02M2001/0006 ,  H02M2001/0009 ,  H02M2001/0032 ,  Y02B70/16

Abstract: A buck converter is described having a buck converter output for outputting an output supply voltage; a first power supply domain operably coupled to a power source; a second power supply domain; a power supply controller coupled to the first power supply domain, the second power supply domain and the buck converter output; wherein the power supply controller is configured to supply power to the second power supply domain from the first power supply domain or the buck converter output, in dependence of the buck converter output supply voltage. Changing the current supplied to the second power supply domain to the buck converter output may reduce the quiescent current consumption from a battery power source, prolonging battery life.