TPS7H5005-SEP: TPS7H5005-SEP Active clamp forward circuit

Hi,

Are there any specific questions we can help with? I can check if we may have a reference circuit you could begin with.

If you're mainly looking for a starting point, the general equations for an Active Clamp Forward topology can be found here. I would also recommend downloading Power Stage Designer since it can simplify many calculations for your topology.

Please be aware that Sept 4 is a holiday and responses will be delayed until the next day.

Thanks,

Sarah

hello.
In the reference circuit of TPS7H5005, no reference circuit can be found for active clamp forward, like push-pull and flyback.
How should I configure the clamp circuit in TPS7H5005?

Hey,

Section 4.3.1 in this app note seems relevant to what you are asking.
The main difference you will run into is that we will require some resistance in parallel with the clamp capacitor because our synchrnous rectifiers are off during soft start.
Thus you need to make sure to discharge the capacitor enough to avoid over voltage events.

https://www.ti.com/lit/an/slua535a/slua535a.pdf

Thanks,
Daniel

hello.

I am looking for a schematic of an active clamp forward design, such as the push-pull schematic within the TI design file slvk099 file.

1) A primary side clamp FET connection circuit consisting of TPS7H5005 is required.
2) Which FET is the clamp FET composed of, N-ch FET or P-ch FET?

thank you

hello.
The problem has been resolved.

thank you

welcome