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DER-98

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DER-98 数据手册

Design Example Report

41W (53Wpk) Power Supply using

TOP246Y

Title

Input: 85 – 265 VAC

Specification Output: 30V/80mA, 23V/0.5A, 12V/2A,

5V/2A, 3.3V/1.5A

Application

Author

Digital Video Recorder

Power Integrations Applications Department

Document

Number

DER-98

Date

September 12, 2005

1.0

Revision

Summary and Features

•

No linear regulators used

One transformer solution

Good cross regulation

No heat sinks used in secondary

Low cost OVP using TO-92 SCR crowbar

Low EMI with low-cost EMI filter

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 at www.powerint.com.

Power Integrations

5245 Hellyer Avenue, San Jose, CA 95138 USA.

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

www.powerint.com

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