公开(公告)号：EP2622723B1

公开(公告)日：2019-01-16

申请号：EP11767230.3

申请日：2011-09-30

申请人： ST-Ericsson SA

发明人： SEEDHER, Ankit ,  SOMAYAJULA, Shyam ,  VASADI, Sriharsha

IPC分类号： H02M3/158 ,  H02M1/00

公开(公告)号：EP2622723A2

公开(公告)日：2013-08-07

申请号：EP11767230.3

申请日：2011-09-30

申请人： ST-Ericsson SA

发明人： SEEDHER, Ankit ,  SOMAYAJULA, Shyam ,  VASADI, Sriharsha

IPC分类号： H02M3/157

CPC分类号： H02M3/158 ,  H02M2001/009 ,  Y10T307/406

摘要： Systems and methods provide for a power management unit and its operation. The power management unit includes: a step-down power converter configured to receive a first voltage and output a second voltage, wherein the second voltage is less than the first voltage and at least one step-up power converter configured to receive the second voltage and output a third voltage, wherein the third voltage is greater than the second voltage. It also includes an inductive element connected to the step-down power converter and the at least one step-up power converter and configured to store energy and selectively release the stored energy, wherein the inductive element is time shared by both the step-down power converter and the at least one step-up power converter; and a finite state machine configured to control the time sharing of the inductive element.

摘要翻译： 系统和方法提供电源管理单元及其操作。 电源管理单元包括：降压功率转换器，被配置为接收第一电压并输出第二电压，其中所述第二电压小于所述第一电压，以及至少一个升压功率转换器，被配置为接收所述第二电压，以及 输出第三电压，其中第三电压大于第二电压。 它还包括连接到降压功率转换器和至少一个升压功率转换器的电感元件，并被配置为存储能量并选择性地释放存储的能量，其中电感元件由降压功率 转换器和至少一个升压功率转换器; 以及配置成控制电感元件的时间共享的有限状态机。