Power supply device and charging method

A charging method and power supply technology, applied in the direction of circuit devices, battery circuit devices, output power conversion devices, etc., can solve the problems of large size, inconvenient to carry around, poor user experience, etc., and achieve volume, miniaturization, and improvement The effect of stability

Active Publication Date: 2021-01-15
GUANGDONG OPPO MOBILE TELECOMM CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the current power adapters capable of outputting relatively large power

Method used

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  • Power supply device and charging method
  • Power supply device and charging method
  • Power supply device and charging method

Examples

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Embodiment Construction

[0052]Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus repeated descriptions thereof will be omitted.

[0053] Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the present disclosure. However, those skilled in t...

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Abstract

The invention provides a power supply device and a charging method. The power supply device comprises a first-stage conversion circuit, a second-stage conversion circuit and a valley fill circuit. Thefirst-stage conversion circuit is used for converting a rectified direct-current voltage to obtain a first direct-current voltage; the second-stage conversion circuit is used for converting the firstdirect-current voltage and outputting a second direct-current voltage, and the second direct-current voltage is lower than the voltage value of the first direct-current voltage; and the valley fill circuit is used for providing energy for the output end of the power supply device when the second direct-current voltage is lower than a set value so that the output voltage of the power supply deviceis constant direct-current voltage. According to the technical scheme, the size of the power supply device can be reduced.

Description

technical field [0001] The present disclosure relates to the charging field, in particular to a power supply device and a charging method. Background technique [0002] With the widespread application of electronic devices (such as smart phones, tablet computers and other smart terminal devices), their functions are increasing, but their power consumption is correspondingly increasing, requiring frequent charging. In order to speed up the charging speed, a corresponding power adapter is required to output more power. [0003] However, the current power adapters capable of outputting relatively large power are all relatively large in size, are not convenient to carry around, and have poor user experience. [0004] The above information disclosed in this Background section is only for enhancement of understanding of the background of the disclosure and therefore it may contain information that does not form the prior art that is already known in the art to a person of ordinar...

Claims

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Application Information

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IPC IPC(8): H02M7/04H02M3/04H02M3/24H02J7/02
CPCH02M7/04H02M3/04H02M3/24H02J7/02H02J2207/20H02M1/0067H02M1/007H02M3/33573H02M3/01H02M1/4258H02M3/1582H02M1/009H02M3/33592H02M3/33576
Inventor 田晨朱经鹏张加亮徐明
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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