AN2844 datasheet(1/37 Pages) STMICROELECTRONICS

Il numero della parte	AN2844

Spiegazioni elettronici	15 W wide range SMPS for metering

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Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

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March 2009

Rev 1

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AN2844

Application note

15 W wide range SMPS for metering

based on ESBT™ STC03DE220HV and L6565 PWM controller

1

Introduction

This document describes a 15-W flyback switched mode power supply (SMPS) application

that uses an emitter-switched bipolar transistor (ESBT™) switch (STC03DE220HV) and

L6565 quasi-resonant pulse-width modulation (PWM) controller.

The application is a universal, cost-effective flyback converter used in metering applications,

with an excellent wide-voltage input range from 125 to 1250 VDC, achieved using the ESBT

as the main switch and a quasi-resonant PWM driver.

This document is associated with the release of the demonstration board

STEVAL-ISA057V1 (Figure 1).

Figure 1.

STEVAL- ISA057V1

www.st.com

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