CHARGING SYSTEM

摘要

The present invention is applicable to the field of mobile terminals and provides a charging system that comprises a charging adapter and a mobile terminal. The charging adapter comprises: a second USB interface; and an adjustment circuit for rectifying and filtering the mains to obtain an original power signal, carrying out voltage adjustment on the original power signal, and outputting a power signal after the voltage adjustment from a power signal output end. The mobile terminal comprises a first USB interface. P first power lines in the first USB interface and P second power lines in the second USB interface are correspondingly connected by insertion, Q first ground lines in the first USB interface and Q second ground lines in the second USB interface are correspondingly connected by insertion, P is greater than or equal to 2, and Q is greater than or equal to 2. Because each first power line and a corresponding second power line are connected by insertion, at least two charging circuits can be provided, and the charging system supports charging with a large current more than 3 amperes.