how to convert voltage level of PPM signal.. see CRO pic

Jan 13, 2014 4 Replies

Hello,



I wish to convert the following ppm signal (+.3V to -1.2V at about 500hz) to 0V to 5V levels.



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How can I do this. Thanks.


wrote ......

You must be a software dude ;)

Did you have the osc. input DC-coupled? It looks like an AC-coupled signal. In any case, you can clamp the negative excursion to 0V with a simple circuit.

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Then just use a NPN transistor to level-shift to 0-5V.

Looking at my notes,I did have it ac coupled. Sorry. I'll check the signal tonight dc coupled, get a pic, and post back when I know what I want.

Thanks

Ok. This is it for sure. I wish convert the following signal to 0-5V levels. I'll work on the info that yaputya has offered but welcome any guidance or advice on this.

My electronics knowledge doesn't venture too much past passive components and ohms law. Thanks.

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I've given a day to it and have decided I'm not capable of this.

I was trying to convert a ppm signal coming out of my expensive rc transmitter to something that was usable with other tx gear.

I think I'll just buy a cheap transmitter .

Thanks Yaputya.

Gavin.

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