So what resistor are you using?
Can't help you without a schematic of what you are doing.

I'm just trying to implement your proposition:

just noticed I had that 115Ω resistor drawn in wrong place in schema, but connected like this. this in not my cup of tea really..
zener there is 20V and as I say I tried to connect it with another 5V in series to get 25V, but that was just for an experiment..
each 100kΩ resistor is 2W rated, but they are getting hot...

 

I'm not "accusing" anyone of anything,
other than maybe a lack of focus on the Thread-Starters actual problem.

I seems that both coercing detailed information out of Thread-Starters,
and good intentioned people getting distracted off into side discussions,
might as well be considered standard operating procedure here.

It just is what it is ............
And good things certainly do come of it.
I suppose I'm just too impatient at times.
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I'm thankful for all your responses and I like your first solution, but I would rather have a "strong" solution ie. driver for the power MOSFET just to play it on the safe side.

thanks for your attention!

 

Because it's an unnecessary, and substantial, expense, and adds complexity, where none is required.
We still haven't been told the basic purpose of this project.
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as I stated previously, the load per each MOSFET will be 75W resistive heater. I am using classic tungsten light bulbs now to be able to see the operation easily.

 

Incandescent-Light-Bulbs have an extremely low Resistance when they are cold.
This could mean that your FETs really aren't stout enough to deal with the start-up Current.
The start-up Current could easily be ~5-X the normal operating Current.

How many "High-Current" Outputs do You have available ?
If You have 4 available,
You can double the turn-on speed of the FETs by running 2 Photovoltaic-FET-Drivers on each FET.
But, this won't do anything for the High-Rds rating of your FETs, which may cause them to get quite Hot.
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I'm just trying to implement your proposition:

You schematic shows the rectified output of the bridge also going to the MOSFETs, means you only need the top MOSFET as the bottom MOSFET now has nothing to do.