Power Integrations

5245 Hellyer Avenue, San Jose, CA 95138 USA.

Tel: +1 408 414 9200 Fax: +1 408 414 9201

www.powerint.com

Design Example Report

Title

17W (25W peak) DVD Recorder Power Supply

using TOP245P

Specification

Input: 90 – 265 VAC

Output: 3.4V/2.55A, 5.1V/1.5A, 5.1Vsb/0.85A,

12V/2.8A, 12Vsb/0.4A, -5.3V/0.3A, -5.3Vsb/20mA,

-22Vsb/10mA, +33Vsb/2mA, 3.5V VFD/165mA

Application

DVD Recorder

Author

Power Integrations Applications Department

Document

Number

DER-18

Date

March 30, 2004

Revision

1.0

Summary and Features

This report describes a design for a DVD power supply, featuring the following:

• No heatsinks

• Switched Outputs for Low Standby consumption

• Low cost/ Low parts count

• No Y-cap

• No X-cap

• Meets EMI requirements

The products and applications illustrated herein (including circuits external to the products and transformer

construction) may be covered by one or more U.S. and foreign patents or potentially by pending U.S. and foreign

patent applications assigned to Power Integrations. A complete list of Power Integrations’ patents may be found