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AC-DC power Supply using TNY277PN

Posted by: SHAHRUKH PATEL on

Hi Team,
I am working on 5V/2A ADAPTER using TNY277PN IC as am doing it on general purpose pcb i am geeting only 3V at output side i am not understanding why it is giving only 3v as i made design as per power integration software..
Please help me with this ..
Note:I am attaching design file from power integration which include Transformer datasheet too
My mail:shhrukh.sp@gmail.com
Whatsaap No;09130631691

Files

Attachment Size
Design from PI 1.2 MB

Comments

Submitted by PI-Bucky on 09/14/2020

Hello Shahrukh,

Thanks for reaching Power Integrations! I hope you are doing great! As for your concern, I highly discourage you to use a universal PCB because it might affect the performance of the circuit due to the unwanted parasitics. You can use the TinySwitch-III data sheet as a design guide for your project. If you still need help on designing your circuit, Ill be needing the following: schematic, layout and a pdf file of the piexpert design file. Dont hesistate on messaging us. Thanks Shahrukh! Stay safe. :)

Regards,

PI-Bucky