all home built solar system


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poida

Guru

Joined: 02/02/2017
Location: Australia
Posts: 1471
Posted: 04:39am 20 Apr 2021      

I don't know for sure. If you want clean and EMI tolerant gate drive
I like totem pole drive, located close to the MOSFETS.

I would seriously consider the TLP350 and other opto coupled driver ICs
such as the  FOD3182
These seem to be fast enough and can drive a couple of Amps.
What is best is there is zero crosstalk from the input pins to and from the
output drive pins. You can physically locate the IC within 10mm of the FETS
so the lead lengths can be short as can be.

You will need a small isolated 15V supply for each high side and one for the two low sides of the bridge.

The TLP350 and  Fod3182 specs show a totem pole output stage so you are getting
that, just not from discrete components.

The Recom RE1215S dc/dc converters are cheap and easy to use.
Cost about $12 each. Saves me a heap of time and farting about with
Aliexpress cheapies.