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18WATTS (18V/1A)

Posted by: maheshpatnala on Wed, 04/13/2016

Hai,  

      I had design of 18V/1A using LNK 416 EG with 0.786PF & 70% efficiency.Plz help me to get 0.9PF with 85% efficiency

Thanks and Regards,

Mahesh

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评论

Submitted by PI-Crumb on Thu, 04/14/2016

hi,

I replied to a similar post, but in addition, get rid of the thermistor if possible.

Please check the rating of the CMC and differential inductor and if possible, use a lower resistance inductors.

By the way, please check your primary clamp connection.D2 should be connected to the anode of D3. Please refer to AN49 for further tips.