Adaptive USB fast charger design based on Quick Charge 2.0 protocol

摘要

This paper introduces the working principle of adaptive USB fast charging based on Quick Charge 2.0 protocol, and introduces in detail wall plug charger interface chip CHY100 with supporting this kind of protocol. CHY100 integrates all the necessary elements, can add Quick Charge 2.0 platform features to the AC-DC wall plug charger.