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AN4165

产品描述This document describes a 12 V - 1 A power supply set in non-isolated flyback topology
文件大小3MB,共37页
制造商ST(意法半导体)
官网地址http://www.st.com/
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AN4165概述

This document describes a 12 V - 1 A power supply set in non-isolated flyback topology

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AN4165
Application note
STEVAL-ISA111V1: 12 V/12 W, 115 kHz non-isolated flyback
based on the VIPER26
By Mirko Sciortino
Introduction
This document describes a 12 V - 1 A power supply set in non-isolated flyback topology
based on the VIPER26, an offline high-voltage converter offered by STMicroelectronics.
The features of the device include:
800 V avalanche rugged power section
PWM operation at 115 kHz with frequency jittering for lower EMI
Limiting current with adjustable set point
On-board soft-start
Safe behavior during a fault condition (overload, short-circuit, open loop)
Low standby consumption (< 30 mW at V
IN
= 230 V
AC
)
Thermal shutdown with hysteresis
Delayed overload (or short-circuit) protection
Open loop failure protection
The available protections are:
All protections employ the auto-restart mode.
Figure 1.
STEVAL-ISA111V1 demonstration board
February 2013
Doc ID 023661 Rev 1
1/37
www.st.com

 
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