AN1842 60W宽电压范围为液晶显示器或电视机电源，使用的L5991 AN1842 APPLICATION NOTE 60W WIDE-RANGE POWER SUPPLY FOR LCD MONITOR OR TV, USING THE L5991 by Claudio Spini This document describes a reference design for a 60W Switch Mode Power Supply dedicated to LCD TV sets or monitors. The board accepts full range input voltage (90 to 265Vrms) and delivers 5V and 12V. It has good efficiency and very good standby performance, able to meet the most stringent standby rules. Introduction The LCD monitors and TVs are growing very fast, so ……