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mobile terminal

A mobile terminal and resistor technology, applied in the field of communications, can solve the problems of low withstand voltage, burnout, and low stability of mobile terminals, and achieve the effect of improving stability and avoiding high voltage burnout.

Active Publication Date: 2019-08-06
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some components in the mobile terminal have a relatively low withstand voltage value, such as a power management integrated circuit (PMIC, Power Management Integrated Circuit). At this time, these components with a low withstand voltage value may be burned out by the system voltage, resulting in The stability of the mobile terminal is low

Method used

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Embodiment Construction

[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0015] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the pr...

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Abstract

The embodiments of the invention provide a mobile terminal, comprising a main board, a control unit and a voltage dividing unit. When charging of a battery of the mobile terminal is completed, the control unit controls the voltage dividing unit to electrically connect the main board, so that the voltage dividing unit shares a part of voltage of a system. According to the solution, when charging of the battery of the mobile terminal is completed, the control unit controls the voltage dividing unit to electrically connect the main board, and the voltage dividing unit shares the voltage loaded to the main board by the system, so that the voltage on the main board is lower than the tolerable safety voltage, the main board is prevented from being burnt out by high voltage, the stability of the main board can be improved, and the stability of the mobile terminal can thus be improved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a mobile terminal. Background technique [0002] Currently, a charging function is managed by a charging management chip in a mobile terminal. When charging the mobile terminal, the charging management chip outputs two voltages. One of the voltages charges the battery in the mobile terminal, and the other voltage supplies power to the mobile terminal system. After charging is complete, the battery powers the system. [0003] After the charging is completed, the battery voltage reaches the full voltage, and the battery voltage is higher at this time. When an external power supply supplies power to the system through an adapter or a battery supplies power to the system, the system voltage will be higher than the battery voltage. However, some components in the mobile terminal have a relatively low withstand voltage, such as a power management integrated circuit (...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00
CPCH02J7/0063H02J2207/10
Inventor 张强孔凡红廖福椿
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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