AN1735 VIPOWER：VIPER22A单输出的参考电路板90到264 VAC输入，10W输出

AN1735 VIPOWER：VIPER22A单输出的参考电路板90到264 VAC输入，10W输出

AN1735
Application note
VIPer22A Single Output Reference Board
90 to 264 VAC input, 10W output

Introduction
This Application Note deals with an off-line wide range single output power supply using a
VIPer22A off-line SMPS primary switcher manufactured by STMicroelectronics. The
VIPer22A combines a dedicated current mode PWM controller with a high voltage Power
MOSFET on the same silicon chip and its switching frequency is internally fixed at 60 kHz.
The feedback path of the power supply include