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Associate
November 14, 2023
Question

How to add constant voltage and constant current circuit in VIPER35 based SMPS design

  • November 14, 2023
  • 1 reply
  • 2168 views

Hello, I want to design the SMPS (Isolated fly back with opto coupler) have output of 10V and 1.5A (i.e 15W) with constant voltage (CV) and constant  current (CC) with input range 90V to 265V, 50Hz, i selected VIPER35HD chip for this design with eDesignSuite, but not able to added the CV/CC in the design input specification, because we need CC to charge the Li-Ion battery. Can someone help, how i can add the CV/CC in edesignsuite.

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1 reply

Peter BENSCH
Technical Moderator
November 14, 2023

Welcome @Zope, to the community!

A primary controlled flyback power supply requires help from a special CC/CV controller such as the SEA05 or SEA05L to map the two control information CC and CV to the feedback channel. There are also technical notes and application notes on their product websites that show their application using an example.

Hope that helps?

Good luck!
/Peter

ZopeAuthor
Associate
November 15, 2023

Thanks, will check.