Spehro Pefhany email (remove spam text)
At 06:19 PM 12/4/02 -0500, you wrote:
>I want to build a BASIC FLYBACK to isolate the serial communication on a PCB
>(485). I want to supply the isolated section by a transformer. Do you any
>idea for the transformer...
Why exactly would you select the flyback topology for this application?
>I was using a MAX243 with a coilcraft transformer, but it is too
Do you mean MAX253? It's convenient, but can be replaced with some
standard parts at a component cost savings (not to mention availability).
Usually you design the transformer along with the rest of the circuit for
DC-DC converters. See Pressman, Billings etc. for the gory details.
Spehro Pefhany --"it's the network..." "The Journey is the reward"
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