Hi everyone!
I want to desing a power supply to obtain an output of 12V from an input in the range of 85V-400V AC or DC.It has to supply 3W. I've thought to use electronic transformers, (myrra 47134) that some of its advantages are high performance, wide range of input voltages and operating indistinct both AC and DC. They accept an input of 85-265VAC y 85-370VDC, so I think a topology like this to achieve 400V input.
For low voltages, the input sections of the two transformers are connected in parallel. A relay is activated when the input voltage exceeds 200V so that both transformers will be connected in series.
These transformers are based on flayback topology so I begin to think that when they work in series the gorund of the high transformer will be floating so it will turn crazy and I begin to think that it won't be able to work
Someone has some idea to transfor this input? are there any comercial product which can help me?
Thanks
| Myrra 47134.pdf |
