Charging circuit and electronic device

Abstract

The invention provides a charging circuit and an electronic device. The charging circuit includes a power management circuit, a detection circuit, and an auxiliary charging circuit. The detection circuit is connected to a battery. The power management circuit is connected to the detection circuit and is configured to supply a first charging signal to the detection circuit to charge the battery. The auxiliary charging circuit is also connected to the detection circuit and is configured to supply a second charging signal to the detection circuit to charge the battery. The detection circuit is also configured to detect and feed back the electric signal of the battery to the power management circuit to cause the power management circuit to adjust the output first charging signal. The chargingcircuit supplies a large electric signal to the battery so as to achieve short charging time, and the power management circuit has low heat generation and high efficiency.

Description

technical field [0001] The invention relates to a power supply technology, in particular to a charging circuit and an electronic device using the charging circuit. Background technique [0002] The global coverage of 3G has brought the world into the era of mobile Internet rapidly, and the scope of application of 4G network has become wider, and people's daily work, life and network are getting closer and closer. The rapid penetration of various electronic devices in the market has become a powerful driving force for the development of the mobile Internet. In this context, various electronic devices have attracted more and more attention from users, among which, various types of electronic devices such as tablet computers, notebook computers, and smart phones have become products favored by consumers. [0003] However, nowadays, various electronic devices are used more and more widely, and more and more programs are used, resulting in faster and faster power consumption, re...

AI Technical Summary

Problems solved by technology

[0003] However, nowadays, various electronic devices are used more and more widely, and more and more programs are used, resulting in faster and faster power consumption, requiring frequent charging, but the charging power of the original built-in charging circuit is limited. Because the charging power is too high, it will cause serious heating of the electronic device and cause damage

At the same time, due to the limitation of the charging power of the built-in charging circuit, the charging time needs to be extended, which makes it troublesome for customers to use portable electronic devices

Images