公开(公告)号：US20190163257A1

公开(公告)日：2019-05-30

申请号：US16200026

申请日：2018-11-26

Applicant: Silicon Laboratories Inc.

Inventor： Praveen Kallam ,  Johnny Gudmund Bjornsen ,  Kenneth W. Fernald ,  Scott Willingham ,  Pavel Konecny

IPC: G06F1/3296

Abstract: An apparatus includes a circuit that has a normal mode of operation and a low-power mode of operation. The circuit consumes more power in the normal mode of operation than in the low-power mode of operation. The apparatus further includes a power-supply circuit. The power-supply circuit provides a normal supply voltage to the circuit in the normal mode of operation. The power-supply circuit includes a non-linear circuit to provide a compressed supply voltage to the circuit in the low-power mode of operation, wherein the normal supply voltage is greater than the compressed supply voltage.

公开(公告)号：US09836071B2

公开(公告)日：2017-12-05

申请号：US14983420

申请日：2015-12-29

Applicant: Silicon Laboratories Inc.

Inventor： Nicholas M. Atkinson ,  Praveen Kallam ,  Timothy T. Rueger

IPC: H03L5/00 ,  G05F1/59 ,  H02J7/00 ,  G06F1/32

CPC classification number: G05F1/59 ,  G06F1/26 ,  G06F1/263 ,  G06F1/3243 ,  H02J1/102 ,  H02J7/0052 ,  H02J7/0063 ,  H02J7/34

Abstract: An apparatus includes an integrated circuit (IC). The IC includes a power controller, which includes a regulator and a controller. The regulator receives a plurality of input voltages and provides a regulated output voltage. The controller controls the regulator to generate the regulated output voltage from the plurality of input voltages. The power controller provides power to a load integrated in the IC from a set of arbitrary input voltages. The set of arbitrary input voltages includes the plurality of input voltages.

公开(公告)号：US20170010660A1

公开(公告)日：2017-01-12

申请号：US14794779

申请日：2015-07-08

Applicant: Silicon Laboratories Inc.

Inventor： Praveen Kallam ,  Johnny Gudmund Bjornsen ,  Kenneth W. Fernald ,  Scott Willingham ,  Pavel Konecny

IPC: G06F1/32

CPC classification number: G06F1/3296 ,  Y02D10/172

Abstract: An apparatus includes a circuit that has a normal mode of operation and a low-power mode of operation. The circuit consumes more power in the normal mode of operation than in the low-power mode of operation. The apparatus further includes a power-supply circuit. The power-supply circuit provides a normal supply voltage to the circuit in the normal mode of operation. The power-supply circuit includes a non-linear circuit to provide a compressed supply voltage to the circuit in the low-power mode of operation, wherein the normal supply voltage is greater than the compressed supply voltage.

Abstract translation: 一种装置包括具有正常操作模式和低功率操作模式的电路。 该电路在正常工作模式下比在低功耗工作模式下消耗更多的功率。 该装置还包括电源电路。 电源电路在正常工作模式下为电路提供正常的电源电压。 电源电路包括非线性电路，以在低功率工作模式下向电路提供压缩的电源电压，其中正常电源电压大于压缩的电源电压。

公开(公告)号：US20160370816A1

公开(公告)日：2016-12-22

申请号：US14740386

申请日：2015-06-16

Applicant: Silicon Laboratories Inc.

Inventor： Dazhi Wei ,  Gang Yuan ,  Erik Pankratz ,  Imranul Islam ,  Praveen Kallam ,  Axel Thomsen ,  Kenneth Wilson Fernald ,  Jinwen Xiao

IPC: G05F1/575

CPC classification number: G05F1/575 ,  G05F1/56 ,  H02M3/1588 ,  Y02B70/1466

Abstract: In one embodiment, an apparatus includes a controller to control a voltage regulator. The controller may have a first comparator circuit to compare a first reference voltage to a feedback voltage. In turn, the first comparator circuit may include: a first comparator having a first input terminal to receive the feedback voltage and a second input terminal to receive the reference voltage and an output node to output an error signal based on the comparison; and a first pre-charge circuit coupled between the first input terminal and the output node configured to pre-charge a first portion of a compensation network to a pre-charge level. The first controller may further include a second comparator circuit coupled to the first comparator circuit compare the error signal to a ramp signal and to generate a first control output to control a power train of the voltage regulator in a first mode of operation.

Abstract translation: 在一个实施例中，一种装置包括用于控制电压调节器的控制器。 控制器可以具有第一比较器电路，以将第一参考电压与反馈电压进行比较。 反过来，第一比较器电路可以包括：第一比较器，具有用于接收反馈电压的第一输入端子和用于接收参考电压的第二输入端子和输出节点，以基于该比较来输出误差信号; 以及耦合在所述第一输入端子和所述输出节点之间的第一预充电电路，被配置为将补偿网络的第一部分预先充电到预充电电平。 第一控制器还可以包括耦合到第一比较器电路的第二比较器电路，将误差信号与斜坡信号进行比较，并产生第一控制输出，以在第一操作模式下控制电压调节器的传动系。