AN2228 STD1LNK60Z为基础的手机电池充电器设计

AN2228 STD1LNK60Z为基础的手机电池充电器设计

AN2228
APPLICATION NOTE

STD1LNK60Z-based Cell Phone Battery Charger Design

Introduction
This application note is a Ringing Choke Converter (RCC)-based, step-by-step cell phone battery charger
design procedure.
The RCC is essential to the self-oscillating fly-back converter, and operates within the Discontinuous
Conduction Mode (DCM) and Continuous Conduction Mode (CCM) boundaries without noticeable
reverse recovery of the output rectifying diodes. RCC control is achieved by using discrete components to
control the peak current mode, so the overall RCC cost is relatively low compared to the conventional
Pulse Width Modulation (PWM) IC fly-bac