Power supply, power supply method and computer storage medium

A power supply and voltage technology, applied in the field of power electronics, can solve the problems of large size, unfavorable power adapter small and light design, etc.

Pending Publication Date: 2021-02-09
GUANGDONG OPPO MOBILE TELECOMM CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the large-capacity energy storage electrolytic capacitor, its volume is

Method used

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  • Power supply, power supply method and computer storage medium
  • Power supply, power supply method and computer storage medium
  • Power supply, power supply method and computer storage medium

Examples

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Embodiment Construction

[0022]The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It is understandable that the specific embodiments described here are only used to explain the related application, but not to limit the application. In addition, it should be noted that for ease of description, only the parts related to the relevant application are shown in the drawings.

[0023]With the continuous enhancement of the application functions of mobile terminals (such as smart phones, laptops, tablets, personal digital assistants, wearable devices, etc.), mobile terminals are becoming more and more popular with consumers, but mobile terminals consume a lot of power and often A power supply device (such as a power adapter) is required to charge it to meet the needs of anytime, anywhere and long-term use. In this way, in order to facilitate people to carry around, it is also...

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Abstract

The embodiment of the invention discloses a power supply, a power supply method and a computer storage medium. The power supply comprises a rectifying circuit and a valley fill circuit. The rectifyingcircuit is used for carrying out voltage conversion on input alternating-current voltage to obtain first pulsating direct-current voltage; the valley fill circuit comprises at least one energy storage capacitor and is used for storing energy through the at least one energy storage capacitor when the first pulsating direct-current voltage output by the rectifying circuit is in a first preset interval; and when the first pulsating direct-current voltage output by the rectifying circuit is lower than a preset threshold value, energy is provided through the at least one energy storage capacitor,so that the trough voltage of the first pulsating direct-current voltage is increased. Thus, the stability of the output voltage can be ensured by adopting a capacitance valley-fill technology, the circuit is simple, the reliability is high, and meanwhile, the volume of the power supply can be reduced.

Description

Technical field[0001]This application relates to the field of power electronics technology, in particular to a power supply, a power supply method, and a computer storage medium.Background technique[0002]The power adapter can also be called an external power supply. It is a power supply voltage conversion device for small portable electronic devices and electronic appliances. It is usually used in small electronic products such as smart phones, mobile power supplies, liquid crystal displays, and notebook computers.[0003]At present, the power adapter accepts the alternating current (Alternating Current, AC) input voltage provided by the power grid. The AC input voltage is rectified by the rectifier bridge and converted into a pulsating direct current (DC) voltage. At this time, it is generally required to be filtered by an electrolytic capacitor. DC voltage with small fluctuations. The function of the electrolytic capacitor is to use its own stored energy to maintain a stable output ...

Claims

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Application Information

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IPC IPC(8): H02M1/42H02M7/06
CPCH02M1/42H02M7/06Y02B70/10H02M1/007H02M1/143H02M3/01H02M3/33573H02M3/33592H02M3/1582H02M1/4266
Inventor 田晨张加亮朱经鹏陆伟伟孙涓涓孙巨禄
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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