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Thread: 1:1 Transformer...
picon face BY : Spehro Pefhany email (remove spam text)

At 06:19 PM 12/4/02 -0500, you wrote:
>Hi All,
>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.

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
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In reply to: <FOEPKEAFAKECEINAMKEKMEPFCEAA.piclist@iquebec.com>
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