OPTOCOUPLER CTR:1

rciurans · ‎2012-12-10

Posted on December 10, 2012 at 12:49

I used the eDesignSuite for my first time. The design was a flyback converter and the feedback to the controller is solved using an optocoupler but with no reference. It's only specified an OPTO with CTR:1. Can anybody help me about which optocoupler can be used?

Enclosed there's the proposed design.

Thanks

Natale Ezio Porto · ‎2012-12-12

Posted on December 12, 2012 at 13:52

Hi Ramon,

You can try a PC817A part number as suggested at page 44 of L6566B datasheet in the typical full-feature application schematic (figure 29).

Please refer to the

http://www.st.com/internet/analog/product/185802.jsp

to get more detailed Application information.

eDesign support

I used the eDesignSuite for my first time. The design was a flyback converter and the feedback to the controller is solved using an optocoupler but with no reference. It's only specified an OPTO with CTR:1. Can anybody help me about which optocoupler can be used?

Enclosed there's the proposed design.

Thanks