Charger voltage regulating circuit

Abstract

The invention discloses a charger voltage regulating circuit, which comprises a power input circuit, a voltage sampling circuit, a controller, a voltage regulating circuit, a voltage selection circuit, a voltage selection display device, a voltage stabilizing circuit and a power output circuit. The output end of the power input circuit is connected with the input end of the voltage sampling circuit; the output end of the voltage sampling circuit is connected with the input end of the controller; the output end of the controller is connected with the input end of the voltage regulating circuit;the output end of the voltage selection circuit is connected with the input end of the controller; the output end of the voltage selection display device is connected with the input end of the voltage selection circuit; and the controller output end is connected with the power output circuit through the voltage stabilizing circuit. The voltage of the charger can be regulated during charging so asto prevent electronic equipment from being damaged.

Description

technical field [0001] The invention relates to a voltage regulating circuit, in particular to a charger voltage regulating circuit, which belongs to the technical field of electronic accessories. Background technique [0002] With the vigorous development of electronic devices, mobile phones, tablets, computers and other electronic devices are widely used in people's life and work, especially mobile phones. With the development of technology and the process of paperless, mobile phones have penetrated into people's lives. People can complete various things through mobile phones, such as buying tickets, paying, approving and so on. However, the long-term use of the mobile phone will easily cause the mobile phone to often run out of power. In order to prevent the power failure of the mobile phone during use, people usually have a charger. Now many public places have chargers and power plugs for users to use. However, the voltage of the existing chargers is constant, and the v...

AI Technical Summary

Problems solved by technology

However, the long-term use of mobile phones will easily lead to the frequent loss of power of the mobile phone. In order to prevent the power outage of the mobile phone during use, people usually have a charger. Now many public places will have chargers and power plugs for users to use.

However, the existing charger voltage is constant, and the voltage cannot be adjusted. If the battery of the mobile phone is of low voltage and the charger is of high voltage, it will cause damage to the battery of the mobile phone, or even explode.

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