Using High voltage as input for LNK624
Posted by: Jitender
on
Hello, i need to develop a SMPS circuit using LNK624 IC. The input supply is 3-phase 440VAC. I need 12V, 0.5Amp output from this supply. Will it work and is there any reference circuit for this?
Hi Jitender,
From my understanding you have a 3-phase 440VAC input wherein 440VAC is the line-to-line voltage. You can use a single line-to-neutral to give you an input that should work at highline input designs (up to 265VAC). You can use use RDR-669 as a basis in designing the circuit you need.
You can also check the other Design examples in the page below and use them as references in designing your circuit. These should all help you in designing the your power supply.
https://www.power.com/products/linkswitch/linkswitch-cv