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2.5 W,通用输入,非隔离反激式转换器

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2.5 W,通用输入,非隔离反激式转换器


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der578.pdf 4M

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Design Example Report  
2.5 W, Universal Input, Non-Isolated  
Flyback Converter Using LinkSwitchTM-XT2  
LNK3604D  
Title  
Specification  
Application  
Author  
85 VAC – 265 VAC Input, 5.0 V, 500 mA Output  
Embedded Power Supply  
Applications Engineering Department  
Document  
Number  
DER-578  
Date  
July 26, 2017  
1.1  
Revision  
Summary and Features  
Lowest component count for a non-isolated flyback solution  
Output voltage regulation, ±5%  
Programmable current limit for clampless design  
Reduced dissipation during output short circuit fault  
<10 mW no-load input power at 230 VAC  
>75% Efficiency at full load condition  
>6 dB conducted EMI margin  
PATENT INFORMATION  
The products and applications illustrated herein (including transformer construction and circuits external to the products) 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  
grants its customers a license under certain patent rights as set forth at <http://www.powerint.com/ip.htm>.  
Power Integrations  
5245 Hellyer Avenue, San Jose, CA 95138 USA.  
Tel: +1 408 414 9200 Fax: +1 408 414 9201  
www.power.com  

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