Subject:
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Re: Logic level conversion
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Mon, 30 Nov 1998 17:58:02 GMT
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Original-From:
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Sensor Fusion Group <[somewhere@unm.]saynotospam[edu]>
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Viewed:
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2225 times
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To convert from 0-3 to 0-5 I would suspect that all you need is a 2N2222
NPN transistor with a couple of resistors to bias it. For example:
+5volts
100 ohm resistor
collector ----------0-5 input
0-3v output -----1k resistor ----- base
emitter
0volts
Depending upon the 0-3v frequency, the resistances can be increased to
minimized the power used from the batteries. Also the transistor is
just off of the top of my head as a general purpose NPN and if higher
switching speeds become necessary I'm sure there are more appropriate
choices for transistors.
DjKOz97@aol.com wrote:
>
> I have a device that uses 0 - 3V logic levels for the data output.
> What can I do to convert the output to match the 68HC11's 0 - 5V logic level?
> Thanks for the help,
> Dave
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Message is in Reply To:
 | | Logic level conversion
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| I have a device that uses 0 - 3V logic levels for the data output. What can I do to convert the output to match the 68HC11's 0 - 5V logic level? Thanks for the help, Dave (26 years ago, 30-Nov-98, to lugnet.robotics.handyboard)
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