Hi,
I'm designing a power supply using two PTQA420050 and a Diode to sum both voltages.
Each module will convert 48V to 5.5V. After that, the diode will sum both 5.5V from each module, to have aprox. 5V.
How do I proceed with the sense+ ? Should i connect it after the diodes? How do I connect the Adjust to have 5.5V at the Vo and 5V after the sum?
Thank you.
I attached a general diagram for N+1 diode oring. I suggst you evaluate the diode VF as stated in the diagram.
The + remote sense must be located between Vout pin 8 and diode anode.
The Adjust resistor is connected to the + remote sense pin , pin 7 for 5.5V.
Tom
My Email address is tguerin@ti.com