DC-DC converter

[Harsh_M_Rana]

Hi,

In one of my applications, I require to design isolated DC-DC converter with following features:

Input: 24V (Nominal)

Output: 0-150V adjustable by a controller (With the help of reference voltage)

Power: 70W

I've tried some designs that's generated by webench of TI. But, the loop compensation and SMPS transformer selection part is very difficult for me. And my current design with UCC2803 20W with adjustable 0-150V. 

Is there any solution available with ST chips? Or any EVAL board that can help me? Any suggestion regarding chip selection from ST based on my requirements? 

[Peter BENSCH]

Unfortunately, no one has been able to answer your question yet, but I hope it will help you?

Your application sounds like a laboratory power supply and is not quite what you can easily achieve with universal DC/DC converters. In particular, the output voltage from 0V is practically impossible to achieve without special precautions. The simulation of DC/DC converters with STMicroelectronics is also based on limited boundary parameters, so that you cannot make any progress without further information.

It is also not helpful to specify the output power because the resulting current would approach infinity if the output voltage approaches zero.

But even if you specify a maximum current and clearly limit your output voltage range, it will not be an easy task to find a solution. In this respect, I'm not surprised that no one has yet made a suggestion.

I'm sorry that I can't make a better suggestion.

Regards
/Peter