Category: Hardware
Product Number: LTC4355,LTC4354
Dear Analog Device Engineers,
We Design a -48V oring circuit with LTC4355 and LTC4354 ICs. It works correctly when the two -48V and RTN-48V of input power are separated from each other like Image-1. When we power off one input supply the fault signal works correctly.
Image-1 : (we use Image 3 ORING-circuit as D1,D2,D3 and D4.)
Sometimes we connect the RTN-OR-IN-A and RTN-OR-IN-B to each other, in order to have one RTN in input like image -2. In this condition, when we power off one input supply the fault signal does not work.
What can I do for this problem?
Image 2:
We use the Image-3 circuit as Oring-circuit. The fault signal is clear in this image.
