5V output mobile power supply

Abstract

The invention discloses a 5V output mobile power supply. The conventional mobile power supply is limited in outdoor use, low in output power and lack of a perfect protection device, and a safety accident is easily caused. The 5V output mobile power supply comprises a lithium battery, a singlechip control circuit, a charging circuit, a short-circuit protection circuit, a temperature and over-discharge protection circuit, a 5V output circuit and an electric quantity display circuit, wherein the first output end of the charging circuit is electrically connected with the input end of the lithium battery, and the second output end of the charging circuit is electrically connected with the input end of the singlechip control circuit; the input end of the short-circuit protection circuit is electrically connected with the output end of the lithium battery, and the output end of the short-circuit protection circuit is in signal connection with the input end of the temperature and over-discharge protection circuit; the output end of the temperature and over-discharge protection circuit is in signal connection with the input end of the 5V output circuit; the output end of the singlechip control circuit is in signal connection with the input end of the electric quantity display circuit; the temperature and over-discharge protection circuit is in signal connection with the singlechip control circuit; and the lithium battery is electrically connected with the singlechip control circuit. The 5V output mobile power supply adopts a plurality of charging modes, and is safe and reliable.

Description

technical field [0001] The invention belongs to the technical field of mobile power supplies, and relates to a mobile power supply with 5V output, in particular to a mobile power supply mainly based on green solar energy charging, taking into account the charging input mode of a vehicle power supply and having a standard USB5V output. Background technique [0002] At present, the mobile power supply on the market is basically based on mains charging. This kind of mobile power supply has certain limitations when used outdoors. The output power is also small, generally only about 10W, which can only charge low-power electronic products such as mobile phones, MP3s, and PADs. Moreover, some mobile power supplies on the market lack complete protection devices such as overheating, overcurrent and undervoltage, which often lead to safety accidents caused by excessive temperature or excessive current of the mobile power supply, greatly reducing the service life of the mobi...

AI Technical Summary

Problems solved by technology

The output power is also small, generally only about 10W, and can only charge low-power electronic products such as mobile phones, MP3s, and PADs.

Moreover, some mobile power supplies on the market lack complete protection devices such as overheating, overcurrent and undervoltage, which often lead to safety accidents caused by excessive temperature or excessive current of the mobile power supply, which greatly reduces the service life of the mobile power supply.

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