公开(公告)号：US08742738B2

公开(公告)日：2014-06-03

申请号：US13685513

申请日：2012-11-26

Applicant: Intersil Americas Inc.

Inventor： Michael Jason Houston

IPC: G05F1/00

CPC classification number: G05F1/10 ,  H02M3/156 ,  H02M3/1584

Abstract: A method and system control the adding or dropping of phases in a multiphase voltage regulator. The regulator has an efficiency and this efficiency of the regulator is calculated for a given number of phases being activated from an output voltage, input voltage, output current, and duty cycle of the regulator. The efficiency of the regulator is also calculated if a phase is added using the derivative of the duty cycle as a function of the output current. The efficiency of the regulator is further calculated if a phase is dropped using the derivative of the duty cycle as a function of the output current. From these operations of calculating, a phase is either added, dropped, or the phase is maintained at its current value to thereby optimize the efficiency of the regulator.

Abstract translation: 一种方法和系统控制多相电压调节器中的相位的增加或减少。 调节器具有效率，并且对于从输出电压，输入电压，输出电流和调节器的占空比激活的给定数量的相位来计算调节器的效率。 如果使用占空比的导数作为输出电流的函数来添加相位，则也可以计算调节器的效率。 如果使用占空比的导数作为输出电流的函数降低相位，则进一步计算调节器的效率。 从这些计算操作中，相位被添加，下降或相位保持在其当前值，从而优化调节器的效率。

公开(公告)号：US20130082670A1

公开(公告)日：2013-04-04

申请号：US13685513

申请日：2012-11-26

Applicant: INTERSIL AMERICAS INC.

Inventor： Michael Jason Houston

IPC: G05F1/10

CPC classification number: G05F1/10 ,  H02M3/156 ,  H02M3/1584

Abstract: A method and system control the adding or dropping of phases in a multiphase voltage regulator. The regulator has an efficiency and this efficiency of the regulator is calculated for a given number of phases being activated from an output voltage, input voltage, output current, and duty cycle of the regulator. The efficiency of the regulator is also calculated if a phase is added using the derivative of the duty cycle as a function of the output current. The efficiency of the regulator is further calculated if a phase is dropped using the derivative of the duty cycle as a function of the output current. From these operations of calculating, a phase is either added, dropped, or the phase is maintained at its current value to thereby optimize the efficiency of the regulator.