Hi,
I really feel sorry for having no good news.
I use a Motor Driver (L293D) to drive the MOSFETs because L293D cannot drive a 200V 10A or more DC motor.
Read the voltmeters of your simulation.
Don't you see that the motor voltage is just about 13V, even with 48V supply voltage.?
--> Your circuit is not (never!) able to drive 200V, nor 10A.
Gate of MOSFETs need say 10V or more (Vgs datasheet ratings usually +/-20V) so that the channel of Mosfets is opened fully
Read the voltmeter of your simulation.
Don't you see that V_gs of the high side Mosfet is just 4.4V?
L293D with V GATE voltage can allow me to adjust the date voltage based on the chosen h-Bridge Mosfets and Load current requirements.
No, with this circuit you maybe can control the LOW side V_gs in a useful manner, but never the high side V_gs. And you don't get the essential dead time..
Sorry for this honest words:
It makes no sense to go on with this circuit. It violates almost any rule on how to design a motor driver circuit.
Believe me, it's a waste of time and money. You won't be satisfied by heating up and exploding MOSFETs...and - if ever - slowly turning motors....
My recommendation:
* Use a ready to buy module
* or - if you really want to build your own - then learn the theory first. There are more than enough proven circuits, design notes, application notes. Every MOSFET manufacturer, MOSFET driver manufacturer, university provides good documents with good explanations.
It's not a simple task. Don't expect to get a really reliably working 200V, 10A motor driver circuit within a couple if days.
Klaus