AN2052 datasheet(1/13 Pages) STMICROELECTRONICS

Part #	AN2052

Description	This report describes how the frequency modulation reduces

PDF	13 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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1 / 13 page

November 2014

DocID10909 Rev 2

1/13

13

AN2052

Application note

VIPower™: implementing frequency modulation

on the VIPer53-E to improve EMI emissions

Introduction

This report describes how the frequency modulation reduces t h e electromagnetic

interference on an SMPS using t h e VIPer53-E as primary PWM-switch. The comparison

of EMI measurement data are presented in the following sections.

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