AN2794 datasheet(1/39 Pages) STMICROELECTRONICS

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AN2794 Datasheet(PDF) 1 Page - STMicroelectronics

Part #	AN2794

Description	This application note provides design guidelines

PDF	39 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

Logo

1 / 39 page

January 2012

Doc ID 14827 Rev 2

1/39

AN2794

Application note

1 kW dual stage DC-AC converter based on the STP160N75F3

Introduction

This application note provides design guidelines and performance characterization of the

STEVAL-ISV001V1 demonstration board.

This board implements a 1 kW dual stage DC-AC converter, suitable for use in battery-

powered uninterruptible power supplies (UPS) or photovoltaic (PV) standalone systems.

The converter is fed by a low DC input voltage varying from 20 V to 28 V, and is capable of

supplying up to 1 kW of output power on a single-phase AC load. These features are

possible thanks to a dual stage conversion topology that includes an efficient step-up push-

pull DC-DC converter, which produces a regulated high-voltage DC bus and a sinusoidal H-

Bridge PWM inverter to generate a 50 Hz, 230 Vrms output sine wave. Other key features of

the system proposed are high power density, high switching frequency and efficiency

greater than 90% over a wide output load range

Figure 1.

1 kW DC-AC converter prototype

www.st.com

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Manufacturer	Part #	Datasheet	Description
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