Three phase AC input to 5V/500mA transformerless | Power Integrations

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Three phase AC input to 5V/500mA transformerless

Posted by: VTakniki on 09/10/2020

A) Input is 3 phase ac with neutral.
B) Output required is 5Vdc/500mA
C) Should be trasnformless, inductor can be used

Any workable solution any one know

Comments

Hi VTakniki,

LNK-TN2 is a suitable 900V product for the job.
https://ac-dc.power.com/products/linkswitch-family/linkswitch-tn2/

Closest reference design is a 4.8W

https://ac-dc.power.com/design-support/reference-designs/design-examples/der-845-4pt8watt-non-isolated-buck-converter-using-linkswitch-tn2-900v/

with non isolated buck design using LNK-TN2 900V rated part

Thank you,