Author Topic: One-FET level convertor (how did it work?)  (Read 968 times)

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Offline 741

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One-FET level convertor (how did it work?)
« on: October 11, 2019, 08:40:58 am »
I recall seeing a very simple 3/5V level convertor which used 1 MOSFET and little else in an Elektor schematic. I think it was bi-directional also.

I can't quite remember the details though.

Online mikerj

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Re: One-FET level convertor (how did it work?)
« Reply #1 on: October 11, 2019, 08:49:27 am »
The design was published many years back by Philips for use in mixed voltage I2C buses, this document describes the operation.  It's only suitable for an open collector/drain bus.
 
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Offline 741

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Re: One-FET level convertor (how did it work?)
« Reply #2 on: October 11, 2019, 08:55:26 am »
Wow, that was a fast response; many thanks indeed.  :)


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