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AN2929

产品描述In consumer applications such as LCD or plasma TVs
文件大小1MB,共32页
制造商ST(意法半导体)
官网地址http://www.st.com/
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AN2929概述

In consumer applications such as LCD or plasma TVs

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AN2929
Application note
Wide range [90 V - 265 V] input, 5 V - 12 W output VIPER27LN
demonstration board with improved standby performance
Introduction
In consumer applications such as LCD or plasma TVs, some models of DVD recorders, set-
top boxes with hard disk, as well as desktop computers, the power supply often includes two
modules: the main power supply that provides most of the power and is off when the
application is in standby mode and the auxiliary power supply that provides energy for
specific peripherals such as USB ports, remote receivers, and modems.
The auxiliary power supply is also on when the application is in standby mode and it is often
required that its input power be as low as possible. The demonstration board presented in
this application note meets the specification of a wide range of auxiliary power supplies for
these applications and is optimized for very low standby consumption, helping to meet the
most stringent energy-saving requirements.
Figure 1.
VIPER27LN demonstration board
April 2011
Doc ID 15333 Rev 2
1/32
www.st.com

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