UCC3895 :Phase Shift Full Bridge Converter

Ju Young Woo

Prodigy 50 points

Part Number: UCC3895
Other Parts Discussed in Thread: UCC28950

Hi, I would like to get help with UCC3895.

I was designed phase shift full bridge converter 400V/2A.

But the UCC3895 doesn't operate that effective duty is 0.

If effective duty is 0, duty of leading lag is change

I don't know why and I want method.

over 3 years ago

0 Mike O' over 3 years ago

TI__Guru 72985 points

Hello,

Can I suggest you evaluate the UCC28950/1 the newer PSFB controllers. The attached application note goes through the step by step design process of a phase shifted full bridge. Typically you would design for a max duty cycle of 50 to 80% for your application.

Regards,

5226.UCC28950 600-W, Phase-Shifted, Full-Bridge Application Report (Rev. C).pdf

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UCC3895 :Phase Shift Full Bridge Converter