Design Example Report
Title
41W (53Wpk) Power Supply using
TOP246Y
Input: 85 – 265 VAC
Specification
Output: 30V/80mA, 23V/0.5A, 12V/2A,
5V/2A, 3.3V/1.5A
Application
Author
Document
Number
Date
Revision
Digital Video Recorder
Power Integrations Applications Department
DER-98
September 12, 2005
1.0
Summary and Features
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•
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•
•
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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
POWERINT [ POWER INTEGRATIONS, INC. ]
