Hi All
I am trying to repair a couple of induction hob power boards, they are identical boards with identical faults, we believe that they were damaged by a power surge, it appears that all the components have survived except the 2 flyback diodes (D22 and D122), I have replaced these and now need some help/advice on selecting the right fuse to repair the fusible traces at the mains input (top left of the second picture)
There are two different size traces:
Trace 1, W=1.56mm, L=1.30mm, D=0.05mm
Trace 2, W=2.36mm, L=0.45mm, D=0.05mm
My calculations (using online calculators) suggest that Trace 1 would be around 10.6A and Trace 2 13.8A though the sticker on the PCB states 3700W (c16.1A), what size fuses would you suggest?
Thank you
Jem