Mobile power supply capable of controlling magnitude of output current

Abstract

The invention provides a mobile power supply capable of controlling the magnitude of output current. The mobile power supply comprises a case, a battery pack and a charging circuit, wherein the battery pack and the charging circuit are arranged in the case; the charging circuit comprises a voltage conversion and current control unit, an MCU (micro control unit) and a signal switching module; the battery pack is connected with the voltage conversion and current control unit; the voltage conversion and current control unit is connected with the MCU; the signal switching module comprises a switching switch and a plurality of current limiting setting resistors; the switching switch is switched between a plurality of current limiting setting resistors; the MCU is connected with the switching switch; a power supply output interface and a control press key are arranged on the case; the voltage conversion and current control unit is connected with a power supply output interface; the control press key is in communication connection with the MCU. The mobile power supply has the advantages that the current output value is manually controlled through the use feeling of a user; the problem of serious heat generation of a charged electronic product is solved; the safety accidents due to heat generation are avoided.

Description

technical field [0001] The invention relates to the technical field of mobile power supplies, in particular to a mobile power supply capable of controlling output current. Background technique [0002] With the development of electronic products, in order to meet the needs of people's daily streamlined travel, rechargeable batteries are used in various aspects, especially in the field of portable mobile electronic products, there is a demand for charging batteries of such products. At the same time, consumption The miniaturization and portability of electronic products has become a mainstream development trend. This requires that the volume weight of the product itself needs to be continuously reduced. On the other hand, during the use of portable mobile terminals such as mobile phones, the demand for energy is constantly increasing. Therefore, the cost of mobile power supplies is necessary for supplementary charging when going out. [0003] At present, when users are char...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the present invention provides a mobile power supply that can control the size of the output current, which can manually control the size of the output current according to the user's use experience, effectively solving the problem of serious heating of the charged electronic product, and improving the user's safety. Use experience to avoid safety accidents caused by heat

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