Hi,
I'm currently trying to transfer power to an isolated load which is a simple resistive load but with unknown value (could be open or shorted) with the simplest circuit possible.
The goal is to transfer current to the load but of course without going over some limit (10-20A max in the primary) since that load could fail either in short or open.
The circuit that came up is the one attached (don't mind the part numbers) :
The issue with the load being unkown is that I cannot simply use a defined command pwm signal on the mosfet or I will either saturate the transformer or not transfer enough current to the load.
So I think I need something that would adjust the duty cycle by monitoring the current going through the primary of the transformer.
Since there's an IC for almost everything, does someone know if there is an IC for this kind of function ?
I would prefer to avoid a flyback or similar controller but if nothing more or less straight forward exists I will look for one.
Best regards