Design Example Report
1.6W Dual Output Flyback Converter
using LNK304P
Title
Input: 85-265VAC
Specification Output: 15V / 25mA (non-isolated) and 12V /
100mA (isolated)
Application
Author
Motor Control
Power Integrations Applications Department
Document
Number
DER-48
Date
April 20, 2005
1.0
Revision
Summary and Features
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Dual output design provides non-isolated and isolated (Class II) output
17 components including EMI filter
Loop Fault Protection
Short Circuit Protection
Hysteretic Thermal Shutdown
Non-isolated Output is Referenced to Neutral
Precise Output Voltage control
Frequency Jitter
Excellent Conducted EMI (>10dB margin across spectrum)
Extremely low standby power consumption (<100mW!)
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