公开(公告)号：US20180083526A1

公开(公告)日：2018-03-22

申请号：US15826715

申请日：2017-11-30

Applicant: MEDIATEK INC.

Inventor： Shih-Mei Lin ,  Chien-Wei Kuan ,  Chien-Lung Lee ,  Che-Hao Meng

IPC: H02M1/14 ,  H02M3/158 ,  H02M1/08

CPC classification number: H02M1/143 ,  G05F1/618 ,  H02M1/08 ,  H02M3/158 ,  H02M2001/0009 ,  H02M2001/0045 ,  H02M2003/1566

Abstract: A DC-DC converter includes an inductor, a switch module, and a pull-up circuit or a pull-down circuit. The inductor has a first node and a second node, and the second node is coupled to an output node of the DC-DC converter. The switch module is arranged for selectively connecting an input voltage or a ground voltage to the first node of the inductor according to a driving signal. The pull-up circuit is arranged for selectively providing a first current to the output node of the DC-DC converter. The pull-down circuit is arranged for selectively sinking a second current from the output node of the DC-DC converter. In addition, the first current or the second current is determined based on an inductor current flowing through the inductor.

公开(公告)号：US20160344219A1

公开(公告)日：2016-11-24

申请号：US15111819

申请日：2014-12-16

Applicant: MEDIATEK INC.

Inventor： Chien-Lung Lee ,  Chih-Chien Huang

IPC: H02J7/00 ,  G01R31/36

Abstract: A method for adjusting a voltage threshold for a battery being connected to a portable device includes: dynamically measuring an internal resistance of the battery; and dynamically adjusting the voltage threshold according to the internal resistance of the battery and a current flowing through the battery.

Abstract translation: 一种用于调节连接到便携式设备的电池的电压阈值的方法包括：动态地测量电池的内部电阻; 并根据电池的内部电阻和流过电池的电流动态调整电压阈值。